WorldWideScience

Sample records for psychometric methods typically

  1. QUEST+: A general multidimensional Bayesian adaptive psychometric method.

    Science.gov (United States)

    Watson, Andrew B

    2017-03-01

    QUEST+ is a Bayesian adaptive psychometric testing method that allows an arbitrary number of stimulus dimensions, psychometric function parameters, and trial outcomes. It is a generalization and extension of the original QUEST procedure and incorporates many subsequent developments in the area of parametric adaptive testing. With a single procedure, it is possible to implement a wide variety of experimental designs, including conventional threshold measurement; measurement of psychometric function parameters, such as slope and lapse; estimation of the contrast sensitivity function; measurement of increment threshold functions; measurement of noise-masking functions; Thurstone scale estimation using pair comparisons; and categorical ratings on linear and circular stimulus dimensions. QUEST+ provides a general method to accelerate data collection in many areas of cognitive and perceptual science.

  2. Bayesian psychometric scaling

    NARCIS (Netherlands)

    Fox, G.J.A.; Berg, van den S.M.; Veldkamp, B.P.; Irwing, P.; Booth, T.; Hughes, D.

    2015-01-01

    In educational and psychological studies, psychometric methods are involved in the measurement of constructs, and in constructing and validating measurement instruments. Assessment results are typically used to measure student proficiency levels and test characteristics. Recently, Bayesian item resp

  3. Bayesian psychometric scaling

    NARCIS (Netherlands)

    Fox, Gerardus J.A.; van den Berg, Stéphanie Martine; Veldkamp, Bernard P.; Irwing, P.; Booth, T.; Hughes, D.

    2015-01-01

    In educational and psychological studies, psychometric methods are involved in the measurement of constructs, and in constructing and validating measurement instruments. Assessment results are typically used to measure student proficiency levels and test characteristics. Recently, Bayesian item

  4. Psychometric Testing of the Method of Generations’ Mentality Type Measurement

    Directory of Open Access Journals (Sweden)

    Vlada I. Pishchik

    2013-01-01

    Full Text Available The article analyzes the mentality phenomenon in psychology and states the lack of clear, definite positions, concerning mentality, presents author's concept of mentality system, including nuclear and peripheral elements. On this basis, the initial survey, helping to develop the method of mentality measurement was conducted. The article presents author's method of generations’ mentality type measurement, carries out psychometric testing of method paragraphs. The paragraphs were tested on reliability-stability, reliability-conformity, factorial, convergent, constructive and empirical validities. The data of method testing on different samples are cited

  5. The simulation study of three typical time frequency analysis methods

    Directory of Open Access Journals (Sweden)

    Li Yifeng

    2017-01-01

    Full Text Available The principals and characteristics of three typical time frequency analysis methods that Short Time Furious transformation, wavelet transformation and Hilbert-Huang transformation are introduced, and the mathematical definition, characteristics and application ranges of these analysis methods and so on are pointed out, then their time-frequency local performance is made analysis and comparison through computer programming and simulation.

  6. Psychometric evaluation of the Theory of Mind Inventory (ToMI): a study of typically developing children and children with autism spectrum disorder.

    Science.gov (United States)

    Hutchins, Tiffany L; Prelock, Patricia A; Bonazinga, Laura

    2012-03-01

    Two studies examined the psychometric properties of the Theory of Mind Inventory (ToMI). In Study One, 135 caregivers completed the ToMI for children (ages 3 through 17) with autism spectrum disorder (ASD). Findings revealed excellent test-retest reliability and internal consistency. Principle Components Analysis revealed three subscales related to the complexity of ToM understanding. In Study Two, data were collected for 124 typically developing children (2 through 12 years). Findings again revealed excellent test-retest and internal consistency. The ToMI distinguished groups by age (younger vs. older children) and developmental status (typically developing vs. ASD), and predicted child performance on a ToM task battery. Utility of the ToMI, study limitations and directions for future research are discussed.

  7. Methods for Examining the Psychometric Quality of Subscores: A Review and Application

    Science.gov (United States)

    Wedman, Jonathan; Lyrén, Per-Erik

    2015-01-01

    When subscores on a test are reported to the test taker, the appropriateness of reporting them depends on whether they provide useful information above what is provided by the total score. Subscores that fail to do so lack adequate psychometric quality and should not be reported. There are several methods for examining the quality of subscores,…

  8. Gearbox Typical Failure Modes, Detection, and Mitigation Methods (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Sheng, S.

    2014-01-01

    This presentation was given at the AWEA Operations & Maintenance and Safety Seminar and focused on what the typical gearbox failure modes are, how to detect them using detection techniques, and strategies that help mitigate these failures.

  9. Effect of a typical rural processing method on the proximate ...

    African Journals Online (AJOL)

    Percent sucrose in starch was 2.10 + 3.50% DM seed and 9.60+ 3.10% DM product. There were significant losses in fat, dietary fibre, moisture and carbohydrate ... Processing method resulted in slightly higher levels of essential nutrients in the ...

  10. METHODS OF THE APPROXIMATE ESTIMATIONS OF FATIGUE DURABILITY OF COMPOSITE AIRFRAME COMPONENT TYPICAL ELEMENTS

    Directory of Open Access Journals (Sweden)

    V. E. Strizhius

    2015-01-01

    Full Text Available Methods of the approximate estimations of fatigue durability of composite airframe component typical elements which can be recommended for application at the stage of outline designing of the airplane are generated and presented.

  11. Safer Conception Methods and Counseling: Psychometric Evaluation of New Measures of Attitudes and Beliefs Among HIV Clients and Providers.

    Science.gov (United States)

    Woldetsadik, Mahlet Atakilt; Goggin, Kathy; Staggs, Vincent S; Wanyenze, Rhoda K; Beyeza-Kashesya, Jolly; Mindry, Deborah; Finocchario-Kessler, Sarah; Khanakwa, Sarah; Wagner, Glenn J

    2016-06-01

    With data from 400 HIV clients with fertility intentions and 57 HIV providers in Uganda, we evaluated the psychometrics of new client and provider scales measuring constructs related to safer conception methods (SCM) and safer conception counselling (SCC). Several forms of validity (i.e., content, face, and construct validity) were examined using standard methods including exploratory and confirmatory factor analysis. Internal consistency was established using Cronbach's alpha correlation coefficient. The final scales consisted of measures of attitudes towards use of SCM and delivery of SCC, including measures of self-efficacy and motivation to use SCM, and perceived community stigma towards childbearing. Most client and all provider measures had moderate to high internal consistency (alphas 0.60-0.94), most had convergent validity (associations with other SCM or SCC-related measures), and client measures had divergent validity (poor associations with depression). These findings establish preliminary psychometric properties of these scales and should facilitate future studies of SCM and SCC.

  12. Simulations of a typical CMOS amplifier circuit using the Monte Carlo method

    OpenAIRE

    Borges, Jacques Cousteau da Silva

    2016-01-01

    In the present paper of Microelectronics, some simulations of a typical circuit of amplification, using a CMOS transistor, through the computational tools were performed. At that time, PSPICE® was used, where it was possible to observe the results, which are detailed in this work. The imperfections of the component due to manufacturing processes were obtained from simulations using the Monte Carlo method. The circuit operating point, mean and standard deviation were obtained and the influence...

  13. Simulations of a typical CMOS amplifier circuit using the Monte Carlo method

    Directory of Open Access Journals (Sweden)

    Borges, Jacques Cousteau da Silva

    2016-11-01

    Full Text Available In the present paper of Microelectronics, some simulations of a typical circuit of amplification, using a CMOS transistor, through the computational tools were performed. At that time, PSPICE® was used, where it was possible to observe the results, which are detailed in this work. The imperfections of the component due to manufacturing processes were obtained from simulations using the Monte Carlo method. The circuit operating point, mean and standard deviation were obtained and the influence of the threshold voltage Vth was analyzed.

  14. Material characteristics and construction methods for a typical research reactor concrete containment in Iran

    Energy Technology Data Exchange (ETDEWEB)

    Ebrahimia, Mahsa; Suha, Kune Y. [Seoul National Univ., Seoul (Korea, Republic of); Eghbalic, Rahman; Jahan, Farzaneh Asadi malek [School of Architecture and Urbanism, Qazvin (Iran, Islamic Republic of)

    2012-10-15

    Generally selecting an appropriate material and also construction style for a concrete containment due to its function and special geometry play an important role in applicability and also construction cost and duration decrease in a research reactor (RR) project. The reactor containment enclosing the reactor vessel comprises physical barriers reflecting the safety design and construction codes, regulations and standards so as to prevent the community and the environment from uncontrolled release of radioactive materials. It is the third and the last barrier against radioactivity release. It protects the reactor vessel from such external events as earthquake and aircraft crash as well. Thus, it should be designed and constructed in such a manner as to withstand dead and live loads, ground and seismic loads, missiles and aircraft loads, and thermal and shrinkage loads. This study aims to present a construction method for concrete containment of a typical RR in Iran. The work also presents an acceptable characteristic for concrete and reinforcing re bar of a typical concrete containment. The current study has evaluated the various types of the RR containments. The most proper type was selected in accordance with the current knowledge and technology of Iran.

  15. Centrifugal compressor surge detecting method based on wavelet analysis of unsteady pressure fluctuations in typical stages

    Science.gov (United States)

    Izmaylov, R.; Lebedev, A.

    2015-08-01

    Centrifugal compressors are complex energy equipment. Automotive control and protection system should meet the requirements: of operation reliability and durability. In turbocompressors there are at least two dangerous areas: surge and rotating stall. Antisurge protecting systems usually use parametric or feature methods. As a rule industrial system are parametric. The main disadvantages of anti-surge parametric systems are difficulties in mass flow measurements in natural gas pipeline compressor. The principal idea of feature method is based on the experimental fact: as a rule just before the onset of surge rotating or precursor stall established in compressor. In this case the problem consists in detecting of unsteady pressure or velocity fluctuations characteristic signals. Wavelet analysis is the best method for detecting onset of rotating stall in spite of high level of spurious signals (rotating wakes, turbulence, etc.). This method is compatible with state of the art DSP systems of industrial control. Examples of wavelet analysis application for detecting onset of rotating stall in typical stages centrifugal compressor are presented. Experimental investigations include unsteady pressure measurement and sophisticated data acquisition system. Wavelet transforms used biorthogonal wavelets in Mathlab systems.

  16. Potassium dichromate method of coal gasification the study of the typical organic compounds in water

    Science.gov (United States)

    Quan, Jiankang; Qu, Guangfei; Dong, Zhanneng; Lu, Pei; Cai, Yingying; Wang, Shibo

    2017-05-01

    The national standard method is adopted in this paper the water - digestion spectrophotometry for determination of the chemical oxygen demand (COD), after ultrasonic processing of coal gasification water for CODCr measurement. Using the control variable method, measured in different solution pH, ultrasonic frequency, ultrasonic power, reaction conditions of different initial solution concentration, the change of coal gasification water CODCr value under the action of ultrasonic, the experimental results shows that appear when measurement is allowed to fluctuate, data, in order to explain the phenomenon we adopt the combination of the high performance liquid chromatography and mass spectrometry before and after ultrasonic coal gasification qualitative analysis on composition of organic matter in water. To raw water sample chromatography - mass spectrometry (GC/MS) analysis, combined with the spectra analysis of each peak stands for material, select coal gasification typical organic substances in water, with the method of single digestion, the equivalent CODCr values measured after digestion. Order to produce, coal gasification water contained high concentration organic wastewater, such as the national standard method is adopted to eliminate the organic material, therefore to measure the CODCr value is lower than actual CODCr value of the emergence of the phenomenon, the experiment of the effect of ultrasound [9-13] is promote the complex organic chain rupture, also explains the actual measurement data fluctuation phenomenon in the experiment.

  17. LBB evaluation for a typical Japanese PWR primary loop by using the US NRC approved methods

    Energy Technology Data Exchange (ETDEWEB)

    Swamy, S.A.; Bhowmick, D.C.; Prager, D.E. [Westinghouse Nuclear Technology Division, Pittsburgh, PA (United States)

    1997-04-01

    The regulatory requirements for postulated pipe ruptures have changed significantly since the first nuclear plants were designed. The Leak-Before-Break (LBB) methodology is now accepted as a technically justifiable approach for eliminating postulation of double-ended guillotine breaks (DEGB) in high energy piping systems. The previous pipe rupture design requirements for nuclear power plant applications are responsible for all the numerous and massive pipe whip restraints and jet shields installed for each plant. This results in significant plant congestion, increased labor costs and radiation dosage for normal maintenance and inspection. Also the restraints increase the probability of interference between the piping and supporting structures during plant heatup, thereby potentially impacting overall plant reliability. The LBB approach to eliminate postulating ruptures in high energy piping systems is a significant improvement to former regulatory methodologies, and therefore, the LBB approach to design is gaining worldwide acceptance. However, the methods and criteria for LBB evaluation depend upon the policy of individual country and significant effort continues towards accomplishing uniformity on a global basis. In this paper the historical development of the U.S. LBB criteria will be traced and the results of an LBB evaluation for a typical Japanese PWR primary loop applying U.S. NRC approved methods will be presented. In addition, another approach using the Japanese LBB criteria will be shown and compared with the U.S. criteria. The comparison will be highlighted in this paper with detailed discussion.

  18. Development of a segmentation method for analysis of Campos basin typical reservoir rocks

    Energy Technology Data Exchange (ETDEWEB)

    Rego, Eneida Arendt; Bueno, Andre Duarte [Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Macae, RJ (Brazil). Lab. de Engenharia e Exploracao de Petroleo (LENEP)]. E-mails: eneida@lenep.uenf.br; bueno@lenep.uenf.br

    2008-07-01

    This paper represents a master thesis proposal in Exploration and Reservoir Engineering that have the objective to development a specific segmentation method for digital images of reservoir rocks, which produce better results than the global methods available in the bibliography for the determination of rocks physical properties as porosity and permeability. (author)

  19. How possible is the development of an operational psychometric method to assess the presence of the 5-HTTLPR s allele? Equivocal preliminary findings

    Directory of Open Access Journals (Sweden)

    Laszik Andras

    2010-05-01

    Full Text Available Abstract Objective The s allele of the 5-hydroxytryptamine transporter-linked promoter region (5-HTTLPR polymorphism of the serotonin transporter gene has been found to be associated with neuroticism-related traits, affective temperaments and response to selective serotonin reuptake inhibitor (SSRI treatment. The aim of the current study was to develop a psychometric tool that could at least partially substitute for laboratory testing and could predict the presence of the s allele. Methods The study included 138 women of Caucasian origin, mean 32.20 ± 1.02 years old. All subjects completed the Hungarian standardised version of the Temperament Evaluation of the Memphis, Pisa, Paris, and San Diego Autoquestionnaire (TEMPS-A instrument and were genotyped for 5-HTTLPR using PCR. The statistical analysis included the calculation of the Index of Discrimination (D, Discriminant Function Analysis, creation of scales on the basis of the above and then item analysis and calculation of sensitivity and specificity. Results Four indices were eventually developed, but their psychometric properties were relatively poor and their joint application did not improve the outcome. Conclusions We could not create a scale that predicts the 5-HTTLPR genotype with sufficient sensitivity and specificity, therefore we could not substitute a psychometric scale for laboratory genetic testing in predicting genotype, and also possibly affective disorder characterisation and treatment.

  20. Carbon balance of the typical grain crop rotation in Moscow region assessed by eddy covariance method

    Science.gov (United States)

    Meshalkina, Joulia; Yaroslavtsev, Alexis; Vassenev, Ivan

    2017-04-01

    Croplands could have equal or even greater net ecosystem production than several natural ecosystems (Hollinger et al., 2004), so agriculture plays a substantial role in mitigation strategies for the reduction of carbon dioxide emissions. In Central Russia, where agricultural soils carbon loses are 9 time higher than natural (forest's) soils ones (Stolbovoi, 2002), the reduction of carbon dioxide emissions in agroecosystems must be the central focus of the scientific efforts. Although the balance of the CO2 mostly attributed to management practices, limited information exists regarding the crop rotation overall as potential of C sequestration. In this study, we present data on carbon balance of the typical grain crop rotation in Moscow region followed for 4 years by measuring CO2 fluxes by paired eddy covariance stations (EC). The study was conducted at the Precision Farming Experimental Fields of the Russian Timiryazev State Agricultural University, Moscow, Russia. The experimental site has a temperate and continental climate and situated in south taiga zone with Arable Sod-Podzoluvisols (Albeluvisols Umbric). Two fields of the four-course rotation were studied in 2013-2016. Crop rotation included winter wheat (Triticum sativum L.), barley (Hordeum vulgare L.), potato crop (Solanum tuberosum L.) and cereal-legume mixture (Vicia sativa L. and Avena sativa L.). Crops sowing occurred during the period from mid-April to mid-May depending on weather conditions. Winter wheat was sown in the very beginning of September and the next year it occurred from under the snow in the phase of tillering. White mustard (Sinapis alba) was sown for green manure after harvesting winter wheat in mid of July. Barley was harvested in mid of August, potato crop was harvested in September. Cereal-legume mixture on herbage was collected depending on the weather from early July to mid-August. Carbon uptake (NEE negative values) was registered only for the fields with winter wheat and white

  1. ABOUT THE CALCULATED METHOD OF DETERMINING THE COORDINATES OF THE CENTER OF WEIGHT OF TYPICAL VEHICLES

    Directory of Open Access Journals (Sweden)

    D. Leontiev

    2015-12-01

    Full Text Available Based on the analysis of experimental data there was provided a method for determining loading on the rear wheels when the front wheels are raised. By comparing the results of calculations and experiments, it was revealed that the calculation error does not exceed 5 %. A smaller error for the actual weighted vehicles.

  2. ABOUT THE CALCULATED METHOD OF DETERMINING THE COORDINATES OF THE CENTER OF WEIGHT OF TYPICAL VEHICLES

    OpenAIRE

    D. Leontiev

    2015-01-01

    Based on the analysis of experimental data there was provided a method for determining loading on the rear wheels when the front wheels are raised. By comparing the results of calculations and experiments, it was revealed that the calculation error does not exceed 5 %. A smaller error for the actual weighted vehicles.

  3. A quantitative confidence signal detection model: 1. Fitting psychometric functions.

    Science.gov (United States)

    Yi, Yongwoo; Merfeld, Daniel M

    2016-04-01

    Perceptual thresholds are commonly assayed in the laboratory and clinic. When precision and accuracy are required, thresholds are quantified by fitting a psychometric function to forced-choice data. The primary shortcoming of this approach is that it typically requires 100 trials or more to yield accurate (i.e., small bias) and precise (i.e., small variance) psychometric parameter estimates. We show that confidence probability judgments combined with a model of confidence can yield psychometric parameter estimates that are markedly more precise and/or markedly more efficient than conventional methods. Specifically, both human data and simulations show that including confidence probability judgments for just 20 trials can yield psychometric parameter estimates that match the precision of those obtained from 100 trials using conventional analyses. Such an efficiency advantage would be especially beneficial for tasks (e.g., taste, smell, and vestibular assays) that require more than a few seconds for each trial, but this potential benefit could accrue for many other tasks. Copyright © 2016 the American Physiological Society.

  4. Crashworthiness uncertainty analysis of typical civil aircraft based on Box-Behnken method

    Institute of Scientific and Technical Information of China (English)

    Ren Yiru; Xiang Jinwu

    2014-01-01

    The crashworthiness is an important design factor of civil aircraft related with the safety of occupant during impact accident. It is a highly nonlinear transient dynamic problem and may be greatly influenced by the uncertainty factors. Crashworthiness uncertainty analysis is conducted to investigate the effects of initial conditions, structural dimensions and material properties. Simplified finite element model is built based on the geometrical model and basic physics phenomenon. Box-Behnken sampling and response surface methods are adopted to obtain gradient information. Results show that the proposed methods are effective for crashworthiness uncertainty analysis. Yield stress, frame thickness, impact velocity and angle have great influence on the failure behavior, and yield stress and frame thickness dominate the uncertainty of internal energy. Failure strain and tangent modulus have the smallest influence on the initial peak acceleration, and gradients of mean acceleration increase because the appearance of material plastic deformation and element failure.

  5. Comparing the methods plot and point-centered quarter to describe a woody community from typical Cerrado

    Directory of Open Access Journals (Sweden)

    Firmino Cardoso Pereira

    2015-05-01

    Full Text Available This article evaluates the effectiveness of the methods fixed area plots (AP and point-centered quarters (PQ to describe a woody community from typical Cerrado. We used 10 APs and 140 PQs, distributed into 5 transects. We compared the density of individuals, floristic composition, richness of families, genera, and species, and vertical and horizontal vegetation structure. The AP method was more effective to sample the density of individuals. The PQ method was more effective for characterizing species richness, vertical vegetation structure, and record of species with low abundance. The composition of families, genera, and species, as well as the species with higher importance value index in the community were similarly determined by the 2 methods. The methods compared are complementary. We suggest that the use of AP, PQ, or both methods may be aimed at the vegetation parameter under study.

  6. Entanglement typicality

    Science.gov (United States)

    Dahlsten, Oscar C. O.; Lupo, Cosmo; Mancini, Stefano; Serafini, Alessio

    2014-09-01

    We provide a summary of both seminal and recent results on typical entanglement. By ‘typical’ values of entanglement, we refer here to values of entanglement quantifiers that (given a reasonable measure on the manifold of states) appear with arbitrarily high probability for quantum systems of sufficiently high dimensionality. We shall focus on pure states and work within the Haar measure framework for discrete quantum variables, where we report on results concerning the average von Neumann and linear entropies as well as arguments implying the typicality of such values in the asymptotic limit. We then proceed to discuss the generation of typical quantum states with random circuitry. Different phases of entanglement, and the connection between typical entanglement and thermodynamics are discussed. We also cover approaches to measures on the non-compact set of Gaussian states of continuous variable quantum systems.

  7. Screening Avoidant/Restrictive Food Intake Disorder (ARFID) in children: Outcomes from utilitarian versus specialist psychometrics.

    Science.gov (United States)

    Dovey, Terence M; Aldridge, Victoria K; Martin, Clarissa I; Wilken, Markus; Meyer, Caroline

    2016-12-01

    This study assessed the specificity and sensitivity of two commonly used psychometric methods to assess ARFID in children. To achieve this, a sample of 329 mothers and one father completed the Behavioral Pediatrics Feeding Assessment Scale (BPFAS) and the Child Food Neophobia Scale (CFNS). A Receiver Operating Characteristic (ROC) analysis indicated that both measures were able to successfully differentiate a known clinical sample from those of typically developing population. Although the BPFAS was more accurate at differentiating ARFID from the general population, the CFNS was acceptable and on some metrics better than its longer counterpart. The ability of a food neophobia scale to differentiate clinical and population samples, and detect gradation of food avoidance within the population sample, suggests that the multitude of psychometric measures available may be measuring similar constructs. Therefore, confidence can be expected in cross-site comparisons despite each using different psychometric measures of food avoidance in children. Copyright © 2016 Elsevier Ltd. All rights reserved.

  8. Typical Protectionism

    Institute of Scientific and Technical Information of China (English)

    ZHANG ZHIPING

    2010-01-01

    @@ In the middle of October,acting on a complaint from the United Steelworkers union,the Office of the U.S.Trade Representative initiated a Section 301 investigation into China's clean energy policies and practices.The move has aroused strong opposition from China.China's New Energy Association says the probe is neither well-founded nor responsible,and is typical trade protectionism.

  9. Development and Psychometric Evaluation of the HPV Clinical Trial Survey for Parents (CTSP-HPV) Using Traditional Survey Development Methods and Community Engagement Principles.

    Science.gov (United States)

    Cunningham, Jennifer; Wallston, Kenneth A; Wilkins, Consuelo H; Hull, Pamela C; Miller, Stephania T

    2015-12-01

    This study describes the development and psychometric evaluation of HPV Clinical Trial Survey for Parents with Children Aged 9 to 15 (CTSP-HPV) using traditional instrument development methods and community engagement principles. An expert panel and parental input informed survey content and parents recommended study design changes (e.g., flyer wording). A convenience sample of 256 parents completed the final survey measuring parental willingness to consent to HPV clinical trial (CT) participation and other factors hypothesized to influence willingness (e.g., HPV vaccine benefits). Cronbach's a, Spearman correlations, and multiple linear regression were used to estimate internal consistency, convergent and discriminant validity, and predictively validity, respectively. Internal reliability was confirmed for all scales (a ≥ 0.70.). Parental willingness was positively associated (p HPV vaccine benefits, advantages of adolescent CTs (r range 0.33-0.42), supporting convergent validity. Moderate discriminant construct validity was also demonstrated. Regression results indicate reasonable predictive validity with the six scales accounting for 31% of the variance in parents' willingness. This instrument can inform interventions based on factors that influence parental willingness, which may lead to the eventual increase in trial participation. Further psychometric testing is warranted. © 2015 Wiley Periodicals, Inc.

  10. Analysis of the psychometric characteristics of the experimental psychological methods for examination of the law enforcement officers

    Directory of Open Access Journals (Sweden)

    Vitaliy Omelyanovich

    2016-09-01

    Full Text Available Background. As a number of local documents requires continuous improvement of psychodiagnostic work, one of the main activities of the Internal Affairs Agencies psychiatric service is an active clinical examination, the timely detection of law enforcement officers employees with neuropsychological instability, tendency to aggression and other forms of deviant behavior. Methods. The aim of the study was the selection of additional experimental psychological techniques to conduct psychological examinations of law enforcement officers.  As on objective of a study evaluation of reliability, validity and discriminative level of psychological tests has been chosen. The object of study was a group of the randomly selected representatives of almost all the major police professions, consisting of 348 respondents of the male gender in the age from 21 to 48 years old. Given the fact that the screening psychological evaluation of law enforcement officers during periodic psychiatric examinations is usually carried out under time constraints and the urgency to form an opinion immediately after the end of testing, nonprojective psychological techniques have been chosen for testing. These techniques, according to the scientific literature, proved their effectiveness and, in addition, are characterized by a small volume of questions and simplicity (largely - the dichotomous scales. Moreover, it does not require a lot of time to handle them: a methodology «Aggressive behavior» (E. P Ilyin, P. O. Kovalev, 2001, the test «Аnxiety-Rigidity- Extravertebral» (D. Moudsli, 2002, the test «IPC-Fragebogen» (H. Levenson, 1986, the test is «MS PTSD» (NM Keane, 2001. Results. Tests reliability was investigated by determining the consistency of their results by calculating the L. Cronbach’s coefficient α and Guttman method of splitting in half; discriminative level was determined by calculating the ratio; construct validity was investigated by the exploratory

  11. Typical Methods of Counting the Number of Combinations%组合计数的几个典型方法

    Institute of Scientific and Technical Information of China (English)

    杨仁付

    2014-01-01

    在研究图的着色和树的计数问题中,遇到大量的复杂的计数问题,这些问题都不能用常规的计数方法来解决。交叉分类、发生函数以及Polya方法是解决这类问题的典型和有效方法,本文以代数学的视角阐述了这些方法的具体应用和解决技巧。%In the study of graph coloring and tree counting , numerous complicated counting problems are en-countered .These problems cannot be easily solved with ordinary counting methods .Cross-classification , and gener-ating function approach and Polya Theorem are typical and effective way to solve these problems .This paper de-scribes the perspective of algebra specific application of these methods and solving skills .

  12. 78th Annual Meeting of the Psychometric Society

    CERN Document Server

    Bolt, Daniel; Ark, L; Wang, Wen-Chung

    2015-01-01

    The 78th Annual Meeting of the Psychometric Society (IMPS) builds on the Psychometric Society's mission to share quantitative methods relevant to psychology. The chapters of this volume present cutting-edge work in the field. Topics include studies of item response theory, computerized adaptive testing, cognitive diagnostic modeling, and psychological scaling. Additional psychometric topics relate to structural equation modeling, factor analysis, causal modeling, mediation, missing data methods, and longitudinal data analysis, among others. The papers in this volume will be especially useful for researchers in the social sciences who use quantitative methods. Prior knowledge of statistical methods is recommended. The 78th annual meeting took place in Arnhem, The Netherlands between July 22nd and 26th, 2013. The previous volume to showcase work from the Psychometric Society’s Meeting is New Developments in Quantitative Psychology: Presentations from the 77th Annual Psychometric Society Meeting (Springer, 201...

  13. Analysis of Cine-Psychometric Visual Memory Data by the Tucker Generalized Learning Curve Method: Final Report.

    Science.gov (United States)

    Reid, J. C.; Seibert, Warren F.

    The analysis of previously obtained data concerning short-term visual memory and cognition by a method suggested by Tucker is proposed. Although interesting individual differences undoubtedly exist in people's ability and capacity to process short-term visual information, studies have not generally examined these differences. In fact, conventional…

  14. Analysis of Cine-Psychometric Visual Memory Data by the Tucker Generalized Learning Curve Method: Final Report.

    Science.gov (United States)

    Reid, J. C.; Seibert, Warren F.

    The analysis of previously obtained data concerning short-term visual memory and cognition by a method suggested by Tucker is proposed. Although interesting individual differences undoubtedly exist in people's ability and capacity to process short-term visual information, studies have not generally examined these differences. In fact, conventional…

  15. 随机性序列的典型纠偏方法及分析%The Analysis of Typical Methods to Rectify the Deviation of Random Sequence

    Institute of Scientific and Technical Information of China (English)

    杨柱; 吕述望; 苏桂平

    2003-01-01

    According to the definition of random experimentation and the demand of random sequence in cryptogra-phy, three typical methods to rectify the deviation of random sequence are given below. We discussed the charactersof their performance, furthermore gave the results of data analysis.

  16. A Conceptual Framework for a Psychometric Theory for Standard Setting with Examples of Its Use for Evaluating the Functioning of Two Standard Setting Methods

    Science.gov (United States)

    Reckase, Mark D.

    2006-01-01

    A conceptual framework is proposed for a psychometric theory of standard setting. The framework suggests that participants in a standard setting process (panelists) develop an internal, intended standard as a result of training and the participant's background. The goal of a standard setting process is to convert panelists' intended standards to…

  17. Psychometric latent response models

    NARCIS (Netherlands)

    Maris, E.

    1995-01-01

    In this paper, some psychometric models will be presented that belong to the larger class oflatent response models (LRMs). First, LRMs are introduced by means of an application in the field ofcomponential item response theory (Embretson, 1980, 1984). Second, a general definition of LRMs (not specifi

  18. Analytical Algorithms for the Blend Ratios by Fibre-bundle Tensile Curves Part I:Typical Tensile Curve and the Strength and Work Methods

    Institute of Scientific and Technical Information of China (English)

    YU Wei-dong(于伟东); POSTLE Ron; YAN Hao-jing(严灏景)

    2004-01-01

    The blend ratio and tensile properties are vital important characteristics of blended fibre bundles. Fibre-bundle tensile behaviour has been measured by means of the Sirolan-Tensor in order to derive a typical specific stress - extension curve. According to the typical tensile curve, the relationships between the blend ratio and the tensile parameters are discussed and established. Two new algorithms, so-called the strength method and the work method, have been developed for the blend-ratio estimation of blended fibre bundles. The relevant blend-ratios and calculations of the two methods are defined in detail. Also, the characteristics have been explained for every calculation and compared to each others. The experimental results show that the blend ratios estimated from the theoretical methods are high coincidence with the measured results. Meanwhile, the specific stress - extension curve of blended fibre bundles depends directly on the blend ratios of the fibre bundles.

  19. Evaluation of two sets of immunohistochemical and Western blot confirmatory methods in the detection of typical and atypical BSE cases

    Science.gov (United States)

    Aims: To compare the ability of the Italian and the U.S. bovine spongiform encephalopathy (BSE) confirmatory protocols in the detection of classical (C-) and atypical - low (L-) and high (H-) type- BSE forms. Methods and Results: Obex samples from U.S. and Italian C-type BSE cases, a U.S. H-type and...

  20. Psychometric Evaluation of the Chinese Virtues Questionnaire

    Science.gov (United States)

    Duan, Wenjie; Ho, Samuel M. Y.; Bai, Yu; Tang, Xiaoqing

    2013-01-01

    Objectives: The present study examined the psychometric properties of the Chinese Virtues Questionnaire (CVQ). The reliability, factor structure, construct validity, and temporal stability of the inventory were examined. Method: A university student sample ("n" = 878) and a working adult sample ("n" = 153) were recruited.…

  1. Effects of Temperature and Method of Solution Preparation on the Performance of a Typical Red Mud Flocculent

    Science.gov (United States)

    Ferland, Pierre; Malito, John T.; Phillips, Everett C.

    Alcan International Ltd. in collaboration with Ondeo Nalco Company have carried out a fundamental study on the dissolution and performance of a 100% anionic polymer. The effects of method of preparation, solvent composition, temperature and exposure time on flocculent activity under conditions relevant to both atmospheric and pressure decantation were investigated. Flocculent activity was determined using static and dynamic settling tests, and the results were correlated with the reduced specific viscosity (RSV). For any given method of preparation of the flocculent solutions (makeup/dilution) the RSV tended to decrease with increasing solution ionic strength, independent of ionic speciation. While a significant loss in flocculent activity occurred with long exposure of the solution to high temperature, only a minor loss occurred in the short time required to flocculate and settle the mud in a decanter operating at 150 °C. Recent results in an actual plant pressure decanter appear to validate this conclusion.

  2. Evaluation of two sets of immunohistochemical and Western blot confirmatory methods in the detection of typical and atypical BSE cases

    Directory of Open Access Journals (Sweden)

    Greenlee Justin J

    2011-09-01

    Full Text Available Abstract Background Three distinct forms of bovine spongiform encephalopathy (BSE, defined as classical (C-, low (L- or high (H- type, have been detected through ongoing active and passive surveillance systems for the disease. The aim of the present study was to compare the ability of two sets of immunohistochemical (IHC and Western blot (WB BSE confirmatory protocols to detect C- and atypical (L- and H-type BSE forms. Obex samples from cases of United States and Italian C-type BSE, a U.S. H-type and an Italian L-type BSE case were tested in parallel using the two IHC sets and WB methods. Results The two IHC techniques proved equivalent in identifying and differentiating between C-type, L-type and H-type BSE. The IHC protocols appeared consistent in the identification of PrPSc distribution and deposition patterns in relation to the BSE type examined. Both IHC methods evidenced three distinct PrPSc phenotypes for each type of BSE: prevailing granular and linear tracts pattern in the C-type; intraglial and intraneuronal deposits in the H-type; plaques in the L-type. Also, the two techniques gave comparable results for PrPSc staining intensity on the C- and L-type BSE samples, whereas a higher amount of intraglial and intraneuronal PrPSc deposition on the H-type BSE case was revealed by the method based on a stronger demasking step. Both WB methods were consistent in identifying classical and atypical BSE forms and in differentiating the specific PrPSc molecular weight and glycoform ratios of each form. Conclusions The study showed that the IHC and WB BSE confirmatory methods were equally able to recognize C-, L- and H-type BSE forms and to discriminate between their different immunohistochemical and molecular phenotypes. Of note is that for the first time one of the two sets of BSE confirmatory protocols proved effective in identifying the L-type BSE form. This finding helps to validate the suitability of the BSE confirmatory tests for BSE

  3. Research on the recycling industry development model for typical exterior plastic components of end-of-life passenger vehicle based on the SWOT method.

    Science.gov (United States)

    Zhang, Hongshen; Chen, Ming

    2013-11-01

    In-depth studies on the recycling of typical automotive exterior plastic parts are significant and beneficial for environmental protection, energy conservation, and sustainable development of China. In the current study, several methods were used to analyze the recycling industry model for typical exterior parts of passenger vehicles in China. The strengths, weaknesses, opportunities, and challenges of the current recycling industry for typical exterior parts of passenger vehicles were analyzed comprehensively based on the SWOT method. The internal factor evaluation matrix and external factor evaluation matrix were used to evaluate the internal and external factors of the recycling industry. The recycling industry was found to respond well to all the factors and it was found to face good developing opportunities. Then, the cross-link strategies analysis for the typical exterior parts of the passenger car industry of China was conducted based on the SWOT analysis strategies and established SWOT matrix. Finally, based on the aforementioned research, the recycling industry model led by automobile manufacturers was promoted.

  4. Introduction of Behavioral Parameterization in the EPC Calculation Method and Assessment of Five Typical Urban Houses in Wallonia, Belgium

    Directory of Open Access Journals (Sweden)

    Stéphane Monfils

    2016-11-01

    Full Text Available The Energy Performance Certification (EPC of existing residential buildings has been designed to introduce energy efficiency as a comparative criterion for real-estate purchase choices, which should influence real-estate market value and stimulate energy saving investments. EPCs in Belgium are asset ratings, calculated with a standardized approach, which purposefully (and understandably takes the human factor out of the equations in order to allow the comparison of buildings. As a result, they often overestimate energy consumption and present discrepancies that do not allow appropriation of the results by potential buyers. This study proposes complementary EPC results, obtained by integrating the behavior of occupants in the calculation method. This paper first analyses the pool of behavioral uncertainties that influence the results of EPCs, describes a questionnaire built to gather additional data on households’ characteristics and energy consumption habits and proposes modifications to the calculation method. The complementary results are then compared to regulatory EPC results and real consumption data. Though acknowledging the necessity of a standardized EPC for dwellings’ comparison, this study completes it with data on the energy consumption-related behaviors to (partially close the gap between real and theoretical consumptions.

  5. An Improved Method for Discriminating ECG Signals using Typical Nonlinear Dynamic Parameters and Recurrence Quantification Analysis in Cardiac Disease Therapy.

    Science.gov (United States)

    Tang, M; Chang, C Q; Fung, P C W; Chau, K T; Chan, F H Y

    2005-01-01

    The discrimination of ECG signals using nonlinear dynamic parameters is of crucial importance in the cardiac disease therapy and chaos control for arrhythmia defibrillation in the cardiac system. However, the discrimination results of previous studies using features such as maximal Lyapunov exponent (λmax) and correlation dimension (D2) alone are somewhat limited in recognition rate. In this paper, improved methods for computing λmaxand D2are purposed. Another parameter from recurrence quantification analysis is incorporated to the new multi-feature Bayesian classifier with λmaxand D2so as to improve the discrimination power. Experimental results have verified the prediction using Fisher discriminant that the maximal vertical line length (Vmax) from recurrence quantification analysis is the best to distinguish different ECG classes. Experimental results using the MIT-BIH Arrhythmia Database show improved and excellent overall accuracy (96.3%), average sensitivity (96.3%) and average specificity (98.15%) for discriminating sinus, premature ventricular contraction and ventricular flutter signals.

  6. 79th Annual Meeting of the Psychometric Society

    CERN Document Server

    Bolt, Daniel; Wang, Wen-Chung; Douglas, Jeffrey; Chow, Sy-Miin

    2015-01-01

    These research articles from the 79th Annual Meeting of the Psychometric Society (IMPS) cover timely quantitative psychology topics, including new methods in item response theory, computerized adaptive testing, cognitive diagnostic modeling, and psychological scaling. Topics within general quantitative methodology include structural equation modeling, factor analysis, causal modeling, mediation, missing data methods, and longitudinal data analysis. These methods will appeal, in particular, to researchers in the social sciences. The 79th annual meeting took place in Madison, WI between July 21nd and 25th, 2014. Previous volumes to showcase work from the Psychometric Society’s Meeting are New Developments in Quantitative Psychology: Presentations from the 77th Annual Psychometric Society Meeting (Springer, 2013) and Quantitative Psychology Research: The 78th Annual Meeting of the Psychometric Society  (Springer, 2015).

  7. 80th Annual Meeting of the Psychometric Society

    CERN Document Server

    Bolt, Daniel; Wang, Wen-Chung; Douglas, Jeffrey; Wiberg, Marie

    2016-01-01

    The research articles in this volume cover timely quantitative psychology topics, including new methods in item response theory, computerized adaptive testing, cognitive diagnostic modeling, and psychological scaling. Topics within general quantitative methodology include structural equation modeling, factor analysis, causal modeling, mediation, missing data methods, and longitudinal data analysis. These methods will appeal, in particular, to researchers in the social sciences. The 80th annual meeting took place in Beijing, China, between the 12th and 16th of July, 2014. Previous volumes to showcase work from the Psychometric Society’s Meeting are New Developments in Quantitative Psychology: Presentations from the 77th Annual Psychometric Society Meeting (Springer, 2013), Quantitative Psychology Research: The 78th Annual Meeting of the Psychometric Society (Springer, 2015), and Quantitative Psychology Research: The 79th Annual Meeting of the Psychometric Society, Wisconsin, USA, 2014 (Springer, 2015).

  8. Future of Psychometrics: Ask What Psychometrics Can Do for Psychology

    Science.gov (United States)

    Sijtsma, Klaas

    2012-01-01

    I address two issues that were inspired by my work on the Dutch Committee on Tests and Testing (COTAN). The first issue is the understanding of problems test constructors and researchers using tests have of psychometric knowledge. I argue that this understanding is important for a field, like psychometrics, for which the dissemination of…

  9. Future of Psychometrics: Ask What Psychometrics Can Do for Psychology

    Science.gov (United States)

    Sijtsma, Klaas

    2012-01-01

    I address two issues that were inspired by my work on the Dutch Committee on Tests and Testing (COTAN). The first issue is the understanding of problems test constructors and researchers using tests have of psychometric knowledge. I argue that this understanding is important for a field, like psychometrics, for which the dissemination of…

  10. Applied psychometrics in clinical psychiatry: the pharmacopsychometric triangle

    DEFF Research Database (Denmark)

    Bech, P

    2009-01-01

    OBJECTIVE: To consider applied psychometrics in psychiatry as a discipline focusing on pharmacopsychology rather than psychopharmacology as illustrated by the pharmacopsychometric triangle. METHOD: The pharmacopsychological dimensions of clinically valid effects of drugs (antianxiety, antidepress......OBJECTIVE: To consider applied psychometrics in psychiatry as a discipline focusing on pharmacopsychology rather than psychopharmacology as illustrated by the pharmacopsychometric triangle. METHOD: The pharmacopsychological dimensions of clinically valid effects of drugs (antianxiety......, antidepressive, antimanic, and antipsychotic), of clinically unwanted effects of these drugs, and the patients' own subjective perception of the balance between wanted and unwanted effects are analysed using rating scales assessed by modern psychometric tests (item response theory models) RESULTS: Symptom rating...... scales fulfilling the item response theory models have been shown to be psychometrically valid outcome scales as their total scores are sufficient statistics for demonstrating dose-response relationship within the various classes of antianxiety, antidepressive, antimanic or antipsychotic drugs. The total...

  11. A psychometric appraisal of the DREEM

    LENUS (Irish Health Repository)

    Hammond, Sean M

    2012-01-12

    Abstract Background The quality of the Educational environment is a key determinant of a student centred curriculum. Evaluation of the educational environment is an important component of programme appraisal. In order to conduct such evaluation use of a comprehensive, valid and reliable instrument is essential. One of most widely used contemporary tools for evaluation of the learning environment is the Dundee Ready Education Environment Measure (DREEM). Apart from the initial psychometric evaluation of the DREEM, few published studies report its psychometric properties in detail. The aim of this study was to examine the psychometric quality of the DREEM measure in the context of medical education in Ireland and to explore the construct validity of the device. Methods 239 final year medical students were asked to complete the DREEM inventory. Anonymised responses were entered into a database. Data analysis was performed using PASW 18 and confirmatory factor analysis performed. Results Whilst the total DREEM score had an acceptable level of internal consistency (alpha 0.89), subscale analysis shows that two subscales had sub-optimal internal consistency. Multiple group confirmatory factor analysis (using Fleming\\'s indices) shows an overall fit of 0.76, representing a weak but acceptable level of fit. 17 of the 50 items manifest fit indices less than 0.70. We sought the best fitting oblique solution to the 5-subscale structure, which showed large correlations, suggesting that the independence of the separate scales is open to question. Conclusions There has perhaps been an inadequate focus on establishing and maintaining the psychometric credentials of the DREEM. The present study highlights two concerns. Firstly, the internal consistency of the 5 scales is quite variable and, in our sample, appears rather low. Secondly, the construct validity is not well supported. We suggest that users of the DREEM will provide basic psychometric appraisal of the device in future

  12. A psychometric appraisal of the DREEM

    Directory of Open Access Journals (Sweden)

    Hammond Sean M

    2012-01-01

    Full Text Available Abstract Background The quality of the Educational environment is a key determinant of a student centred curriculum. Evaluation of the educational environment is an important component of programme appraisal. In order to conduct such evaluation use of a comprehensive, valid and reliable instrument is essential. One of most widely used contemporary tools for evaluation of the learning environment is the Dundee Ready Education Environment Measure (DREEM. Apart from the initial psychometric evaluation of the DREEM, few published studies report its psychometric properties in detail. The aim of this study was to examine the psychometric quality of the DREEM measure in the context of medical education in Ireland and to explore the construct validity of the device. Methods 239 final year medical students were asked to complete the DREEM inventory. Anonymised responses were entered into a database. Data analysis was performed using PASW 18 and confirmatory factor analysis performed. Results Whilst the total DREEM score had an acceptable level of internal consistency (alpha 0.89, subscale analysis shows that two subscales had sub-optimal internal consistency. Multiple group confirmatory factor analysis (using Fleming's indices shows an overall fit of 0.76, representing a weak but acceptable level of fit. 17 of the 50 items manifest fit indices less than 0.70. We sought the best fitting oblique solution to the 5-subscale structure, which showed large correlations, suggesting that the independence of the separate scales is open to question. Conclusions There has perhaps been an inadequate focus on establishing and maintaining the psychometric credentials of the DREEM. The present study highlights two concerns. Firstly, the internal consistency of the 5 scales is quite variable and, in our sample, appears rather low. Secondly, the construct validity is not well supported. We suggest that users of the DREEM will provide basic psychometric appraisal of the

  13. Psychometric properties of the adult resilience indicator

    Directory of Open Access Journals (Sweden)

    Martina Kotzé

    2013-03-01

    Full Text Available Orientation: Researchers need to assess the psychometric rigour of resilience measuring scales. Research purpose: The purpose of the study was to assess the psychometric properties of the South African Adult Resilience Indicator (ARI.Motivation for the study: Researchers have not previously published the psychometric properties of the South African Adult Resilience Indicator.Research design, approach and method: The authors used a cross-sectional quantitative research design. A sample of 789 young adults participated in the study. Cross-validation allowed the authors to confirm (using the validation sample the validity of the ARI structure they obtained during initial testing (using the calibration sample. They investigated two measurement models (the original factor structure and a one-dimensional factor structure.Main findings: The original factor structure presented the data and the proposed theory better than did the one-dimensional factor structure. The authors found acceptable goodness of fit for the ARI. More specifically, they found invariance (in terms of equal factor loadings,covariances and error variances in the calibration and validation samples. They also found acceptable reliability estimates for each of the eight sub-scales.Practical/managerial implications: The results can help researchers and practitioners interested in measuring resilience in adults to choose a resilience measure and to select an appropriate measure for their populations and contexts.Contribution/value-add: Previous research has clearly shown that reliable and valid resilience measures are necessary. It is also necessary to assess the psychometric properties of the currently available instruments and to publish the findings. This study has helped by examining the psychometric properties of the South African Adult Resilience Indicator.

  14. Development and psychometric evaluation of a new team effectiveness scale for all types of community adult mental health teams: a mixed-methods approach.

    Science.gov (United States)

    El Ansari, Walid; Lyubovnikova, Joanne; Middleton, Hugh; Dawson, Jeremy F; Naylor, Paul B; West, Michael A

    2016-05-01

    Defining 'effectiveness' in the context of community mental health teams (CMHTs) has become increasingly difficult under the current pattern of provision required in National Health Service mental health services in England. The aim of this study was to establish the characteristics of multi-professional team working effectiveness in adult CMHTs to develop a new measure of CMHT effectiveness. The study was conducted between May and November 2010 and comprised two stages. Stage 1 used a formative evaluative approach based on the Productivity Measurement and Enhancement System to develop the scale with multiple stakeholder groups over a series of qualitative workshops held in various locations across England. Stage 2 analysed responses from a cross-sectional survey of 1500 members in 135 CMHTs from 11 Mental Health Trusts in England to determine the scale's psychometric properties. Based on an analysis of its structural validity and reliability, the resultant 20-item scale demonstrated good psychometric properties and captured one overall latent factor of CMHT effectiveness comprising seven dimensions: improved service user well-being, creative problem-solving, continuous care, inter-team working, respect between professionals, engagement with carers and therapeutic relationships with service users. The scale will be of significant value to CMHTs and healthcare commissioners both nationally and internationally for monitoring, evaluating and improving team functioning in practice.

  15. 81st Annual Meeting of the Psychometric Society

    CERN Document Server

    Wiberg, Marie; Culpepper, Steven; Douglas, Jeffrey; Wang, Wen-Chung

    2017-01-01

    This proceedings volume compiles and expands on selected and peer reviewed presentations given at the 81st Annual Meeting of the Psychometric Society (IMPS), organized by the University of North Carolina at Greensboro, and held in Asheville, North Carolina, July 11th to 17th, 2016. IMPS is one of the largest international meetings focusing on quantitative measurement in psychology, education, and the social sciences, both in terms of participants and number of presentations. The meeting built on the Psychometric Society's mission to share quantitative methods relevant to psychology, addressing a diverse set of psychometric topics including item response theory, factor analysis, structural equation modeling, time series analysis, mediation analysis, cognitive diagnostic models, and multi-level models. Selected presenters were invited to revise and expand their contributions and to have them peer reviewed and published in this proceedings volume. Previous volumes to showcase work from the Psychometric Society�...

  16. Psychometric evaluation of the Danish version of Satisfaction with Daily Occupations (SDO)

    DEFF Research Database (Denmark)

    Eklund, Mona; Morville, Anne-Le

    2014-01-01

    AIMS: The Satisfaction with Daily Occupations (SDO) scale assesses satisfaction within the domains of work, leisure, domestic tasks, and self-care. The aim was to investigate the psychometric properties of the Danish version of the SDO when used with asylum seekers. METHODS: The participants were...... and criterion and concurrent validity. The findings regarding discriminant validity were somewhat inconclusive. The Danish SDO may be regarded as psychometrically sound but further psychometric testing is needed....

  17. Psychometric evaluation of the Danish version of Satisfaction with Daily Occupations (SDO)

    DEFF Research Database (Denmark)

    Eklund, Mona; Morville, Anne-Le

    2013-01-01

    Aims: The Satisfaction with Daily Occupations (SDO) scale assesses satisfaction within the domains of work, leisure, domestic tasks, and self-care. The aim was to investigate the psychometric properties of the Danish version of the SDO when used with asylum seekers. Methods: The participants were...... and criterion and concurrent validity. The findings regarding discriminant validity were somewhat inconclusive. The Danish SDO may be regarded as psychometrically sound but further psychometric testing is needed. Key words: validity, reliability, health, Activity...

  18. Social Cognition Psychometric Evaluation: Results of the Initial Psychometric Study.

    Science.gov (United States)

    Pinkham, Amy E; Penn, David L; Green, Michael F; Harvey, Philip D

    2016-03-01

    Measurement of social cognition in treatment trials remains problematic due to poor and limited psychometric data for many tasks. As part of the Social Cognition Psychometric Evaluation (SCOPE) study, the psychometric properties of 8 tasks were assessed. One hundred and seventy-nine stable outpatients with schizophrenia and 104 healthy controls completed the battery at baseline and a 2-4-week retest period at 2 sites. Tasks included the Ambiguous Intentions Hostility Questionnaire (AIHQ), Bell Lysaker Emotion Recognition Task (BLERT), Penn Emotion Recognition Task (ER-40), Relationships Across Domains (RAD), Reading the Mind in the Eyes Task (Eyes), The Awareness of Social Inferences Test (TASIT), Hinting Task, and Trustworthiness Task. Tasks were evaluated on: (i) test-retest reliability, (ii) utility as a repeated measure, (iii) relationship to functional outcome, (iv) practicality and tolerability, (v) sensitivity to group differences, and (vi) internal consistency. The BLERT and Hinting task showed the strongest psychometric properties across all evaluation criteria and are recommended for use in clinical trials. The ER-40, Eyes Task, and TASIT showed somewhat weaker psychometric properties and require further study. The AIHQ, RAD, and Trustworthiness Task showed poorer psychometric properties that suggest caution for their use in clinical trials. © The Author 2015. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  19. Modern psychometric approaches to analysis of scales for health-related quality of life

    DEFF Research Database (Denmark)

    Bjorner, Jakob Bue; Bech, Per

    2016-01-01

    In recent years, much effort has been invested in the development of new instruments for assessment of health-related quality of life (HRQOL). For many new instruments, modern psychometric methods, such as item response theory (IRT) models, have been used, either as supplemental to classical...... psychometric testing or as the primary methodological approach. We will use the term modern psychometric methods to refer to psychometric methods for multi-item scales that (1) examine the contribution of each item to the measurement properties of the overall scale and (2) recognize that items are categorical....... The models include Rasch models (Rasch 1980; Fischer and Molenaar 1995), other IRT models (Samejima 1969; van der Linden and Hambleton 1997), and factor analytic models for categorical data (Muthén 1984). “Modern” psychometric methods have actually a rather long history within psychiatric research (both...

  20. A Psychometric Analysis of the Italian Version of the eHealth Literacy Scale Using Item Response and Classical Test Theory Methods.

    Science.gov (United States)

    Diviani, Nicola; Dima, Alexandra Lelia; Schulz, Peter Johannes

    2017-04-11

    The eHealth Literacy Scale (eHEALS) is a tool to assess consumers' comfort and skills in using information technologies for health. Although evidence exists of reliability and construct validity of the scale, less agreement exists on structural validity. The aim of this study was to validate the Italian version of the eHealth Literacy Scale (I-eHEALS) in a community sample with a focus on its structural validity, by applying psychometric techniques that account for item difficulty. Two Web-based surveys were conducted among a total of 296 people living in the Italian-speaking region of Switzerland (Ticino). After examining the latent variables underlying the observed variables of the Italian scale via principal component analysis (PCA), fit indices for two alternative models were calculated using confirmatory factor analysis (CFA). The scale structure was examined via parametric and nonparametric item response theory (IRT) analyses accounting for differences between items regarding the proportion of answers indicating high ability. Convergent validity was assessed by correlations with theoretically related constructs. CFA showed a suboptimal model fit for both models. IRT analyses confirmed all items measure a single dimension as intended. Reliability and construct validity of the final scale were also confirmed. The contrasting results of factor analysis (FA) and IRT analyses highlight the importance of considering differences in item difficulty when examining health literacy scales. The findings support the reliability and validity of the translated scale and its use for assessing Italian-speaking consumers' eHealth literacy.

  1. The typical behaviour of relays

    OpenAIRE

    Alamino, Roberto C.; Saad, David

    2007-01-01

    The typical behaviour of the relay-without-delay channel and its many-units generalisation, termed the relay array, under LDPC coding, is studied using methods of statistical mechanics. A demodulate-and-forward strategy is analytically solved using the replica symmetric ansatz which is exact in the studied system at the Nishimori's temperature. In particular, the typical level of improvement in communication performance by relaying messages is shown in the case of small and large number of re...

  2. A Psychometric Review of Norm-Referenced Tests Used to Assess Phonological Error Patterns

    Science.gov (United States)

    Kirk, Celia; Vigeland, Laura

    2014-01-01

    Purpose: The authors provide a review of the psychometric properties of 6 norm-referenced tests designed to measure children's phonological error patterns. Three aspects of the tests' psychometric adequacy were evaluated: the normative sample, reliability, and validity. Method: The specific criteria used for determining the psychometric…

  3. Detection of Typical GIS Partial Discharge Based on UHF Method%基于超高频法的典型GIS局部放电检测

    Institute of Scientific and Technical Information of China (English)

    孙曙光; 陆俭国; 俞慧忠; 沈建位; 金少华

    2012-01-01

    GIS partial discharge detection is a scientific and effective way for insulation condition monitoring. A GIS model and the detection system based on UHF method has been set up. Several typical GIS partial discharge is studied and using power phase analysis a detailed analysis of characteristics under different voltage is made; Combined with conventional partial discharge detection method, the partial discharge quantity estimation of UHF signal is also made. All of these lay a foundation for the study of partial discharge intelligent recognition and the relationship between UHF signal and partial discharge quantity to improve the engineering utility of UHF partial discharge detection.%GIS局部放电检测是GIS绝缘状态监测的一种科学有效的方法.笔者构建了GIS实验模型以及基于超高频法的局部放电在线检测系统,对GIS中典型的几种局部放电特征进行了研究,采用基于相位的分析模式详细分析了不同放电类型在不同电压条件下的放电特征,并结合常规局部放电测试仪,对UHF信号的放电量进行估计,为进一步进行放电类型的智能模式识别及研究超高频信号与放电量关系提供了试验依据,以提高UHF局部放电检测的工程实用性.

  4. [Optimization of sample pretreatment method for the determination of typical artificial sweeteners in soil by high performance liquid chromatography-tandem mass spectrometry].

    Science.gov (United States)

    Feng, Biting; Gan, Zhiwei; Hu, Hongwei; Sun, Hongwen

    2014-09-01

    The sample pretreatment method for the determination of four typical artificial sweeteners (ASs) including sucralose, saccharin, cyclamate, and acesulfame in soil by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was optimized. Different conditions of extraction, including four extractants (methanol, acetonitrile, acetone, deionized water), three kinds of ionic strength of sodium acetate solution (0.001, 0.01, 0.1 mol/L), four pH values (3, 4, 5 and 6) of 0.01 mol/L acetate-sodium acetate solution, four set durations of extraction (20, 40, 60, 120 min) and number of extraction times (1, 2, 3, 4 times) were compared. The optimal sample pretreatment method was finally set up. The sam- ples were extracted twice with 25 mL 0.01 mol/L sodium acetate solution (pH 4) for 20 min per cycle. The extracts were combined and then purified and concentrated by CNW Poly-Sery PWAX cartridges with methanol containing 1 mmol/L tris (hydroxymethyl) amino methane (Tris) and 5% (v/v) ammonia hydroxide as eluent. The analytes were determined by HPLC-MS/MS. The recoveries were obtained by spiked soil with the four artificial sweeteners at 1, 10, 100 μg/kg (dry weight), separately. The average recoveries of the analytes ranged from 86.5% to 105%. The intra-day and inter-day precisions expressed as relative standard deviations (RSDs) were in the range of 2.56%-5.94% and 3.99%-6.53%, respectively. Good linearities (r2 > 0.995) were observed between 1-100 μg/kg (dry weight) for all the compounds. The limits of detection were 0.01-0.21 kg/kg and the limits of quantification were 0.03-0.70 μg/kg for the analytes. The four artificial sweeteners were determined in soil samples from farmland contaminated by wastewater in Tianjin. This method is rapid, reliable, and suitable for the investigation of artificial sweeteners in soil.

  5. Modeling psychometric functions in R.

    Science.gov (United States)

    Yssaad-Fesselier, Rosa; Knoblauch, Kenneth

    2006-02-01

    We demonstrate some procedures in the statistical computing environment R for obtaining maximum likelihood estimates of the parameters of a psychometric function by fitting a generalized nonlinear regression model to the data. A feature for fitting a linear model to the threshold (or other) parameters of several psychometric functions simultaneously provides a powerful tool for testing hypotheses about the data and, potentially, for reducing the number of parameters necessary to describe them. Finally, we illustrate procedures for treating one parameter as a random effect that would permit a simplified approach to modeling stimulus-independent variability due to factors such as lapses or interobserver differences. These tools will facilitate a more comprehensive and explicit approach to the modeling of psychometric data.

  6. The Alzheimer's Disease Knowledge Scale: Development and Psychometric Properties

    Science.gov (United States)

    Carpenter, Brian D.; Balsis, Steve; Otilingam, Poorni G.; Hanson, Priya K.; Gatz, Margaret

    2009-01-01

    Purpose: This study provides preliminary evidence for the acceptability, reliability, and validity of the new Alzheimer's Disease Knowledge Scale (ADKS), a content and psychometric update to the Alzheimer's Disease Knowledge Test. Design and Methods: Traditional scale development methods were used to generate items and evaluate their psychometric…

  7. The Alzheimer's Disease Knowledge Scale: Development and Psychometric Properties

    Science.gov (United States)

    Carpenter, Brian D.; Balsis, Steve; Otilingam, Poorni G.; Hanson, Priya K.; Gatz, Margaret

    2009-01-01

    Purpose: This study provides preliminary evidence for the acceptability, reliability, and validity of the new Alzheimer's Disease Knowledge Scale (ADKS), a content and psychometric update to the Alzheimer's Disease Knowledge Test. Design and Methods: Traditional scale development methods were used to generate items and evaluate their psychometric…

  8. The impact of conventional dietary intake data coding methods on foods typically consumed by low-income African-American and White urban populations.

    Science.gov (United States)

    Mason, Marc A; Fanelli Kuczmarski, Marie; Allegro, Deanne; Zonderman, Alan B; Evans, Michele K

    2015-08-01

    Analysing dietary data to capture how individuals typically consume foods is dependent on the coding variables used. Individual foods consumed simultaneously, like coffee with milk, are given codes to identify these combinations. Our literature review revealed a lack of discussion about using combination codes in analysis. The present study identified foods consumed at mealtimes and by race when combination codes were or were not utilized. Duplicate analysis methods were performed on separate data sets. The original data set consisted of all foods reported; each food was coded as if it was consumed individually. The revised data set was derived from the original data set by first isolating coded foods consumed as individual items from those foods consumed simultaneously and assigning a code to designate a combination. Foods assigned a combination code, like pancakes with syrup, were aggregated and associated with a food group, defined by the major food component (i.e. pancakes), and then appended to the isolated coded foods. Healthy Aging in Neighborhoods of Diversity across the Life Span study. African-American and White adults with two dietary recalls (n 2177). Differences existed in lists of foods most frequently consumed by mealtime and race when comparing results based on original and revised data sets. African Americans reported consumption of sausage/luncheon meat and poultry, while ready-to-eat cereals and cakes/doughnuts/pastries were reported by Whites on recalls. Use of combination codes provided more accurate representation of how foods were consumed by populations. This information is beneficial when creating interventions and exploring diet-health relationships.

  9. A biologically inspired psychometric function for accuracy of visual identification as a function of exposure duration

    DEFF Research Database (Denmark)

    Petersen, Anders; Andersen, Tobias

    The psychometric function of letter identification is typically described as a function of stimulus intensity. However, the effect of stimulus exposure duration on letter identification remains poorly described. This is surprising because the effect of exposure duration has played a central role......-Z) was presented at the centre of the screen. Exposure duration was varied from 5 to 210 milliseconds. The letter was followed by a pattern mask. Three subjects each completed 54,080 trials in a 26-Alternative Forced Choice procedure. We compared the exponential, the gamma and the Weibull psychometric functions......, all of these having a temporal offset included, as well as the ex-Gaussian, and finally a new psychometric function, motivated from single-neuron studies by (Albrecht, Geisler, Frazor & Crane, 2002). The new psychometric function stands out by having a nonmonotonous hazard rate which is initially...

  10. Conducting Simulation Studies in Psychometrics

    Science.gov (United States)

    Feinberg, Richard A.; Rubright, Jonathan D.

    2016-01-01

    Simulation studies are fundamental to psychometric discourse and play a crucial role in operational and academic research. Yet, resources for psychometricians interested in conducting simulations are scarce. This Instructional Topics in Educational Measurement Series (ITEMS) module is meant to address this deficiency by providing a comprehensive…

  11. Modeling typical performance measures

    NARCIS (Netherlands)

    Weekers, Anke Martine

    2009-01-01

    In the educational, employment, and clinical context, attitude and personality inventories are used to measure typical performance traits. Statistical models are applied to obtain latent trait estimates. Often the same statistical models as the models used in maximum performance measurement are appl

  12. A Psychometric Evaluation of the Cultural Receptivity in Fostering Scale

    Science.gov (United States)

    Coakley, Tanya M.; Orme, John G.

    2006-01-01

    Objective: The psychometric properties of a new measure of foster parents' openness toward participating in activities that promote children's cultural development are evaluated. The measure is titled the Cultural Receptivity in Fostering Scale (CRFS). Method: Data from 304 foster mothers who completed the CRFS and a battery of measures on…

  13. The Negative Stereotyping of Single Persons Scale: Initial Psychometric Development

    Science.gov (United States)

    Pignotti, Monica; Abell, Neil

    2009-01-01

    Objectives: The current study presents an initial psychometric analysis of a three-dimensional scale designed to measure stereotyping of people who are single, defined as not currently legally married. Methods: Following expert review, proposed scale items are administered to 178 graduate and undergraduate students. Reliability analysis and…

  14. Psychometric Properties of the Chinese Cultural Beliefs about Adversity Scale

    Science.gov (United States)

    Leung, Janet T. Y.; Shek, Daniel T. L.

    2013-01-01

    Objective: The purpose of the study was to examine the psychometric properties of the Chinese Cultural Beliefs about Adversity scale (CBA). Methods: The CBA was administered in a sample of 275 Chinese parents experiencing economic disadvantage. Results: The CBA was found to be internally consistent. Consistent with the conceptual framework, factor…

  15. Psychometric Evaluation of the Simplified Chinese Version of Flourishing Scale

    Science.gov (United States)

    Tang, Xiaoqing; Duan, Wenjie; Wang, Zhizhang; Liu, Tianyuan

    2016-01-01

    Objectives: The Flourishing Scale (FS) was developed to measure psychological well-being from the eudaimonic perspective, highlighting the flourishing of human functioning. This article evaluated the psychometric characteristics of the simplified Chinese version of FS among a Chinese community population. Method: A total of 433 participants from…

  16. Psychometric Properties of Measures of Team Diversity with Likert Data

    Science.gov (United States)

    Deng, Lifang; Marcoulides, George A.; Yuan, Ke-Hai

    2015-01-01

    Certain diversity among team members is beneficial to the growth of an organization. Multiple measures have been proposed to quantify diversity, although little is known about their psychometric properties. This article proposes several methods to evaluate the unidimensionality and reliability of three measures of diversity. To approximate the…

  17. Psychometric Properties of the HOME Inventory Using Rasch Analysis

    Science.gov (United States)

    Glad, Johan; Kottorp, Anders; Jergeby, Ulla; Gustafsson, Carina; Sonnander, Karin

    2014-01-01

    Objectives: The aim of this pilot study was to explore psychometric properties of two versions of the Home Observation for Measurement of the Environment Inventory in a Swedish social service sample. Method: Social workers employed at 22 Swedish child protections agencies participated in the data collection. Both classic test theory approaches and…

  18. Psychometric Properties of the Chinese Cultural Beliefs about Adversity Scale

    Science.gov (United States)

    Leung, Janet T. Y.; Shek, Daniel T. L.

    2013-01-01

    Objective: The purpose of the study was to examine the psychometric properties of the Chinese Cultural Beliefs about Adversity scale (CBA). Methods: The CBA was administered in a sample of 275 Chinese parents experiencing economic disadvantage. Results: The CBA was found to be internally consistent. Consistent with the conceptual framework, factor…

  19. Disseminated typical bronchial carcinoid tumor

    Directory of Open Access Journals (Sweden)

    Novković Dobrivoje

    2013-01-01

    Full Text Available Introduction. Bronchial carcinoids belong to a rare type of lung tumors. If they do not expose outstanding neuroendocrine activity, they develop without clearly visible symptoms. They are often detected during a routine examination. According to their clinical pathological features, they are divided into typical and atypical tumors. Typical bronchial carcinoids metastasize to distant organs very rarely. Localized forms are effectively treated by surgery. The methods of conservative treatment should be applied in other cases. Case report. We presented a 65-year-old patient with carcinoid lung tumor detected by a routine examination. Additional analysis (chest X-ray, computed tomography of the chest, ultrasound of the abdomen, skeletal scintigraphy, bronhoscopy, histopathological analysis of the bioptate of bronchial tumor, as well as bronchial brushing cytology and immunohistochemical staining performed with markers specific for neuroendocrine tumor proved a morphologically typical lung carcinoid with dissemination to the liver and skeletal system, which is very rarely found in typical carcinoids. Conclusion. The presented case with carcinoid used to be showed morphological and pathohistological characteristics of typical bronchial carcinoid. With its metastasis to the liver and skeletal system it demonstrated unusual clinical course that used to be considered as rare phenomenon. Due to its frequent asymptomatic course and varied manifestation, bronchial carcinoid could be considered as a diagnostic challenge requiring a multidisciplinary approach.

  20. Typicals/Típicos

    Directory of Open Access Journals (Sweden)

    Silvia Vélez

    2004-01-01

    Full Text Available Typicals is a series of 12 colour photographs digitally created from photojournalistic images from Colombia combined with "typical" craft textiles and text from guest writers. Typicals was first exhibited as photographs 50cm x 75cm in size, each with their own magnifying glass, at the Contemporary Art Space at Gorman House in Canberra, Australia, in 2000. It was then exhibited in "Feedback: Art Social Consciousness and Resistance" at Monash University Museum of Art in Melbourne, Australia, from March to May 2003. From May to June 2003 it was exhibited at the Museo de Arte de la Universidad Nacional de Colombia Santa Fé Bogotá, Colombia. In its current manifestation the artwork has been adapted from the catalogue of the museum exhibitions. It is broken up into eight pieces corresponding to the contributions of the writers. The introduction by Sylvia Vélez is the PDF file accessible via a link below this abstract. The other seven PDF files are accessible via the 'Research Support Tool' section to the right of your screen. Please click on 'Supp. Files'. Please note that these files are around 4 megabytes each, so it may be difficult to access them from a dial-up connection.

  1. Necessity for a comprehensive psychometric policy within an organization

    Directory of Open Access Journals (Sweden)

    T. H. Veldsman

    1990-06-01

    Full Text Available Psychometric testing is an important, valuable, widespread and legally protected activity in South Africa. Within the ambit of the organizational context a psychometric policy is required to guide and direct this activity. The purpose of this article is to show how the need for such a policy within an organization can be fulfilled. The article proceeds as follows: firstly, the positioning of a psychometric policy within the overall human resource management of an organization is discussed; secondly, a definition of the term 'psychometric policy' and the aims thereof are given; thirdly, a suggested content for such a policy is outlined; fourthly a method of generating this policy is proposed; and lastly, the role of the psychologist in this regard is indicated.  Opsomming Psigometriese toetsing is 'n belangrike, waardevolle, algemene en wetlik beskermde aktiwiteit in Suid-Afrika. Binne organisatoriese verband word 'n psigometriese beleid benodig om hierdie aktiwiteit te lei en rig. Die doel van hierdie artikel is om aan te toon hoe die behoefte aan sodanige beleid in 'n organisasie vervul kan word. Die artikel verloop soos volg: eerstens, word die plasing van 'n psigometriese beleid binne die algemene menslike hulpbronbestuur van die organisasie bespreek; tweedens, word 'n definisie van die begrip "psigometriese beleid" en die doelwitte daarvan gegee; derdens, word 'n voorgestelde inhoud vir sodanige beleid aan die orde gestel; uierdens, word 'n metode aangedui waarvolgens hierdie beleid daargestel kan word; en laastens, word die rol van die sielkundige in hierdie area aangedui.

  2. Comprehensive Psychometric Analysis of the Eyberg Child Behavior Inventory in Children with Autism Spectrum Disorder

    Science.gov (United States)

    Jeter, Kathryn; Zlomke, Kimberly; Shawler, Paul; Sullivan, Maureen

    2017-01-01

    Many assessment measures have only been validated for one specific diagnostic population, which is costly and reduces the clinical utility of assessments. The Eyberg Child Behavior Inventory (ECBI) is one popular measure designed to assess disruptive behavior problems in youth. The ECBI has sound psychometric properties in typically developing…

  3. Brief Report: An Independent Replication and Extension of Psychometric Evidence Supporting the Theory of Mind Inventory

    Science.gov (United States)

    Greenslade, Kathryn J.; Coggins, Truman E.

    2016-01-01

    This study presents an independent replication and extension of psychometric evidence supporting the "Theory of Mind Inventory" ("ToMI"). Parents of 20 children with ASD (4; 1-6; 7 years; months) and 20 with typical development (3; 1-6; 5), rated their child's theory of mind abilities in everyday situations. Other parent report…

  4. A biologically inspired psychometric function for accuracy of visual identification as a function of exposure duration

    DEFF Research Database (Denmark)

    Petersen, Anders; Andersen, Tobias

    The psychometric function of letter identification is typically described as a function of stimulus intensity. However, the effect of stimulus exposure duration on letter identification remains poorly described. This is surprising because the effect of exposure duration has played a central role ...

  5. A Typical Synergy

    Science.gov (United States)

    van Noort, Thomas; Achten, Peter; Plasmeijer, Rinus

    We present a typical synergy between dynamic types (dynamics) and generalised algebraic datatypes (GADTs). The former provides a clean approach to integrating dynamic typing in a statically typed language. It allows values to be wrapped together with their type in a uniform package, deferring type unification until run time using a pattern match annotated with the desired type. The latter allows for the explicit specification of constructor types, as to enforce their structural validity. In contrast to ADTs, GADTs are heterogeneous structures since each constructor type is implicitly universally quantified. Unfortunately, pattern matching only enforces structural validity and does not provide instantiation information on polymorphic types. Consequently, functions that manipulate such values, such as a type-safe update function, are cumbersome due to boilerplate type representation administration. In this paper we focus on improving such functions by providing a new GADT annotation via a natural synergy with dynamics. We formally define the semantics of the annotation and touch on novel other applications of this technique such as type dispatching and enforcing type equality invariants on GADT values.

  6. How typical are 'typical' tremor characteristics? : Sensitivity and specificity of five tremor phenomena

    NARCIS (Netherlands)

    van der Stouwe, A. M. M.; Elting, J. W.; van der Hoeven, J. H.; van Laar, T.; Leenders, K. L.; Maurits, N. M.; Tijssen, M. Aj.

    2016-01-01

    Introduction: Distinguishing between different tremor disorders can be challenging. Some tremor disorders are thought to have typical tremor characteristics: the current study aims to provide sensitivity and specificity for five 'typical' tremor phenomena. Methods: Retrospectively, we examined 210 t

  7. Psychometric analysis of common mental disorders

    DEFF Research Database (Denmark)

    Søgaard, Hans Jørgen; Bech, Per

    2009-01-01

    AIMS: Mental disorders often go undetected in primary care, for persons awarded disability pension, and in sick-leave certificates. No validity tests of instruments for detection and measurement of mental disorders have been performed in long-term sickness absence (LSA). This is the aim...... of the present study for Common Mental Disorders - Screening Questionnaire (CMD-SQ). METHODS: It is validity tested in a well-defined Danish population comprising all persons on continuous sickness absence just exceeding eight weeks. CMD-SQ is composed of SCL-SOM (somatization), Whiteley-7 (illness worry...... of SC-ANX4, SCL-DEP6, and SCL-8, called SCL-8AD, showed the best and excellent psychometric and screening statistics. CONCLUSIONS: SCL-8AD, a sub-scale of CMD-SQ, is a promising candidate for screening and measurement of mental disorders in long-term sickness absence....

  8. Inclusion of 1-naphthylacetic acid and 2-(1-naphthyl)acetamide into three typical multiresidue methods for LC/MS/MS analysis of tomatoes and zucchini.

    Science.gov (United States)

    Lozano, Ana; Pérez-Parada, Andrés; Heinzen, Horacio; Fernández-Alba, Amadeo R

    2012-01-01

    In spite of high plant growth regulator application rates, little has been reported in the literature on determination of their residues in fruits and vegetables. This would be useful in monitoring good manufacturing practices and overall safety through the enforcement of maximum residue levels (MRLs). The present work describes method validation for the determination of 1-naphthylacetic acid (NAA) and 2(1-naphthyl)acetamide (NAAm) in tomato and zucchini using the mini-Luke, ethyl acetate (EtOAc) and acetate-buffered quick, easy, cheap, effective, rugged, and safe (QuEChERS) methods. Samples were spiked at two different levels: 50 and 100 pg/kg for NAA and 20 and 100 pg/kg for NAAm. These compounds were analyzed within the same chromatographic run with LC coupled to triple quadrupole MS (LC/(QqQ)MS/MS) in positive and negative electrospray ionization [ESI(+) and ESI(-)] modes for NAAm and NAA, respectively. For analyte confirmation, LC/ESI(-)QTOF-MS was also investigated given that NAA has only one multiple reaction monitoring transition (185.1-*140.9 m/z). These three common methods were used to determine linearity, recoveries, precision (RSD), matrix effects, repeatability, and reproducibility (n = 5) for the selected matrixes. In terms of the Directorate-General for Health and Consumers (DG-SANCO) guidelines, only insignificant differences were found for the multiresidue methods tested, regardless of the commodity. Matrix-matched calibration was used, and LODs were below 10.1 pg/kg for NAA and 6.0 pg/kg for NAAm, which were lower than the MRLs established in current European Union legislation for these compounds. Obtained recoveries for NAA ranged from 87 to 107% with RSD values below 10% for mini-Luke, 83 to 107% with RSD 0.996) for all methods used. Good repeatability and reproducibility in terms of RSD were obtained (11.3-17.8%) for these analytical methods. The results were acceptable within the studied ranges for both analytes in all methods. As these

  9. Loosening Psychometric Constraints on Educational Assessments

    Science.gov (United States)

    Kane, Michael T.

    2017-01-01

    In response to an argument by Baird, Andrich, Hopfenbeck and Stobart (2017), Michael Kane states that there needs to be a better fit between educational assessment and learning theory. In line with this goal, Kane will examine how psychometric constraints might be loosened by relaxing some psychometric "rules" in some assessment…

  10. Psychometric Properties of IRT Proficiency Estimates

    Science.gov (United States)

    Kolen, Michael J.; Tong, Ye

    2010-01-01

    Psychometric properties of item response theory proficiency estimates are considered in this paper. Proficiency estimators based on summed scores and pattern scores include non-Bayes maximum likelihood and test characteristic curve estimators and Bayesian estimators. The psychometric properties investigated include reliability, conditional…

  11. Psychometric Properties of the Modified Danish Version of the Caregiver Impact Questionnaire

    DEFF Research Database (Denmark)

    Heidemann, Christian Hamilton; Godballe, Christian; Kjeldsen, Anette Drøhse

    2014-01-01

    OBJECTIVE: Otitis media in children may have a considerable impact on caregiver quality of life. The disease-specific Caregiver Impact Questionnaire is designed to assess caregiver quality of life in relation to child otitis media. Assessment of the psychometric properties of this instrument...... is limited. This study assesses the psychometric properties of this instrument including validity, reproducibility, responsiveness, and interpretability. STUDY DESIGN: Longitudinal validation study. SETTING: Secondary care units. METHODS: Analyses were based on data from 435 families. Validity was assessed...

  12. Psychometric evaluation of the Danish and Swedish Satisfaction with Life Scale in first episode psychosis patients

    DEFF Research Database (Denmark)

    Hochwälder, Jacek; Mattsson, Maria; Holmqvist, Ragnhild

    2012-01-01

    PURPOSE: To psychometrically evaluate the Satisfaction with Life Scale in two cohorts of first-episode psychosis patients in the Danish National Schizophrenia Project and in the Swedish Parachute Project. METHOD: Four properties of the Satisfaction with Life Scale were examined in the Danish cohort....... The dimensions were confirmed in the Swedish sample. CONCLUSION: The Satisfaction with Life Scale shows satisfactory psychometric properties and seems valid and useful among first-episode psychosis patients....

  13. EQ-5D rated by proxy in institutionalized older adults with dementia: Psychometric pros and cons

    OpenAIRE

    Díaz-Redondo, A.; Rodríguez-Blázquez, C.; Ayala, A; Martinez-Martin, P; Forjaz, M.J.; On behalf of Spanish Research Group on Quality of Life and Ageing

    2015-01-01

    Aim: Measurement of health-related quality of life in people with dementia is a challenge, because of their special characteristics and the difficulties that this term entails itself. The present study aimed at assessing the psychometric properties of the EQ-5D rated by a familiar or a professional caregiver of institutionalized older adults with dementia. Methods: We analyzed the EQ-5D psychometric properties from 525 questionnaires rated by proxy, in a sample of institutionalize...

  14. Development and psychometric testing of the Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS).

    OpenAIRE

    Ohlsson Bodil; Bengtsson Mariette; Ulander Kerstin

    2007-01-01

    Abstract Background The aim of this study was to develop and psychometrically test a short, patient-reported questionnaire to be used in clinical practice for patients with Irritable Bowel Syndrome (IBS). The Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS) questionnaire was designed to measure the treatment response of symptoms and well-being in patients suffering from IBS. Methods The VAS-IBS was psychometrically tested for content and criterion validity, scale acceptability, it...

  15. Development and psychometric testing of the Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS)

    OpenAIRE

    Bengtsson, Mariette; Ohlsson, Bodil; Ulander, Kerstin

    2007-01-01

    Background: The aim of this study was to develop and psychometrically test a short, patient-reported questionnaire to be used in clinical practice for patients with Irritable Bowel Syndrome (IBS). The Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS) questionnaire was designed to measure the treatment response of symptoms and well-being in patients suffering from IBS. Methods: The VAS-IBS was psychometrically tested for content and criterion validity, scale acceptability, item-redu...

  16. Test Method of Typical Parameters of ADCs Based on Current Integration Method%一种基于电流积分法的ADC 典型静态参数测试方法研究磁

    Institute of Scientific and Technical Information of China (English)

    陈波; 张虹; 张碚

    2015-01-01

    高位 ADC 的测试中,对输入信号的质量要求较高,一般的混合信号测试系统难以达到要求。论文提出了一种基于电流积分法的高位 ADC 典型静态参数测试方法,充分利用了聚丙烯电容在积分线性度方面的优势,搭建了合理的测试电路,并在 ATE 上完成了对某款14bit ADC 的典型静态参数测试,实验表明,该方法设计简便,通用性强,而且测试效果良好,具有较强的实用性。%A high accuracy signal is necessary in the high‐bits ADCs test .Most of the Mixed‐signal test systems are difficult to meet the requirements .A method on the test of typical parameters of ADCs based on Current integration is pro‐posed in this paper ,which makes full use of the superiority of the Polypropylene film capacitor on linearity of integral .A rea‐sonable test circuit is established and a test of 14‐bits ADC is completed on ATEs with this method .Experimental results show that this method is simple ,useful ,practicable and has a good performance on the test .

  17. Design process and preliminary psychometric study of a video game to detect cognitive impairment in senior adults

    Directory of Open Access Journals (Sweden)

    Sonia Valladares-Rodriguez

    2017-06-01

    Full Text Available Introduction Assessment of episodic memory has been traditionally used to evaluate potential cognitive impairments in senior adults. Typically, episodic memory evaluation is based on personal interviews and pen-and-paper tests. This article presents the design, development and a preliminary validation of a novel digital game to assess episodic memory intended to overcome the limitations of traditional methods, such as the cost of its administration, its intrusive character, the lack of early detection capabilities, the lack of ecological validity, the learning effect and the existence of confounding factors. Materials and Methods Our proposal is based on the gamification of the California Verbal Learning Test (CVLT and it has been designed to comply with the psychometric characteristics of reliability and validity. Two qualitative focus groups and a first pilot experiment were carried out to validate the proposal. Results A more ecological, non-intrusive and better administrable tool to perform cognitive assessment was developed. Initial evidence from the focus groups and pilot experiment confirmed the developed game’s usability and offered promising results insofar its psychometric validity is concerned. Moreover, the potential of this game for the cognitive classification of senior adults was confirmed, and administration time is dramatically reduced with respect to pen-and-paper tests. Limitations Additional research is needed to improve the resolution of the game for the identification of specific cognitive impairments, as well as to achieve a complete validation of the psychometric properties of the digital game. Conclusion Initial evidence show that serious games can be used as an instrument to assess the cognitive status of senior adults, and even to predict the onset of mild cognitive impairments or Alzheimer’s disease.

  18. Typical errors and improvement methods in apparel market research%服装市场调查的若干误区及改进

    Institute of Scientific and Technical Information of China (English)

    张春姣; 杨以雄; 史晓云

    2011-01-01

    基于应用统计学知识及市场调研文献资料,通过对服装市场调研方法、工具以及问卷调研的评价指标梳理,结合服装市场问卷调研的实际案例和常见问题及误区,探析产生原因及改进方法,为从事相关工作的调查者提供借鉴。%Based on applied statistics and literature on market research,information such as apparel market research methods and evaluation indexes was collected,common problems and errors during apparel market research combining with case study were found out,after that the causes and improvement methods were analyzed to provide market investigators with references.

  19. Psychometric validation of the Hopkins Symptom Checklist (SCL-90) subscales for depression, anxiety, and interpersonal sensitivity

    DEFF Research Database (Denmark)

    Bech, P; Bille, J; Møller, S B

    2014-01-01

    BACKGROUND: The psychometric validity of many subscales of the 90-item Hopkins Symptom Checklist (SCL-90) remains largely unknown. Therefore, the aim of the present study was to evaluate the psychometric properties of the "Hamilton-subscales" for depression (SCL-D16), anxiety (SCL-A14), their 6......-item core-measures (SCL-D6 and SCL-A6), the anxiety symptom scale (SCL-ASS8) and the interpersonal sensitivity scale (IPS5). METHODS: The psychometric properties of the SCL-D16, SCL-A14, SCL-D6, SCL-A6, SCL-ASS8, and the IPS5 were evaluated based on SCL-90 ratings from 850 day patients from a Danish...... SCL-90 subscales were identified. Using these scales it is possible to perform a psychometrically valid evaluation of psychiatric patients regarding the severity of depression (HAM-D6), specific anxiety (SCL-ASS8) and interpersonal sensitivity (IPS5)....

  20. 典型内分泌干扰物的检测技术%Analytical methods for typical endocrine disrupting chemicals

    Institute of Scientific and Technical Information of China (English)

    关小红; 张静; 梁丽萍; 仇保华; 杜鹃山

    2012-01-01

    内分泌干扰物的检测对保障环境中人和动物的安全非常必要.概述了环境中痕量内分泌干扰物的检测进展,主要的检测技术包括生物法和质谱法.生物法是判定化合物是否为内分泌干扰物及其雌激素活性大小的非常有前景的方法,该方法主要分为整体器官法、细胞法和非细胞法3类.在内分泌干扰物定量分析方面,质谱法的灵敏度和准确度都很高,但样品预处理过程对整个测试结果的准确性影响很大,为此,又开发出了多种高效、快速的新型萃取技术.最新的检测技术将生物法和质谱法串联结合,达到同时测定雌激素活性和化合物浓度及其结构的目的.内分泌干扰物后期的研究主要可以从以下几方面开展:内分泌干扰物源头的减少、敏感群体最大暴露剂量的确定、污染区域的修复和大区域环境中内分泌干扰物的迁移转化机制等.%This paper described the developments in the methods of EDCs detection.Biologically based assays,which comprise whole organism assays,cellular bioassays and non-cellular assays,seem to be promising methods for the determination of endocrine activities.On the other hand,the mass-based analytical methods show excellent sensitivity and precision for EDCs' quantification.Several extraction techniques for the instrumental analysis have been developed since they are crucial in determining the overall analytical performances.To achieve both quantitatively and qualitatively successful analysis for EDCs,a combined approach incorporating two types of analyses was proposed,known as a bioassay-directed chemical analysis(BDCA) method.Further studies on EDCs need to be conducted,such as source reduction,limiting exposure to vulnerable populations,remediation of contaminated sites,and the detailed understanding of transport mechanisms in the environment.

  1. Fracture Behavior Investigation of a Typical Sandstone Under Mixed-Mode I/II Loading Using the Notched Deep Beam Bending Method

    Science.gov (United States)

    Luo, Y.; Ren, L.; Xie, L. Z.; Ai, T.; He, B.

    2017-08-01

    The brittle fracture behavior of rocks under mixed-mode loading is important in rock engineering. First, a new configuration called the notched deep beam (NDB) specimen was introduced for the fracture testing of rock materials under mixed-mode I/II loading, and a series of finite element analyses were performed to calibrate the dimensionless fracture parameters (i.e., Y I, Y II and T^{*}). The results showed that an NDB specimen subjected to three-point bending is able to generate pure mode I loading, pure mode II loading, and any mixed-mode loading in between. Then, several NDB specimens made of sandstone were used to investigate the brittle fracture behavior of rock under mixed-mode I/II loading. The fracture surfaces were theoretically described using a statistical method, and the results indicated that all the fracture surfaces generated under different mixed-mode loading were statistically identical; to some extent, these results experimentally showed that only tensile fracture occurs under mixed-mode I/II loading. The obtained fracture strengths were then analyzed using several brittle fracture criteria. The empirical criterion, maximum energy release rate criterion, generalized maximum tangential stress (GMTS) criterion, and improved R-criterion accurately predicted the fracture strength envelope of the sandstone. Finally, based on the concepts of point stress and mean stress, the micro-crack zones (MCZs) under different mixed-mode loading were theoretically estimated based on the MTS and GMTS criteria. The critical radius of MCZ in the crack propagation direction was not a constant for all mixed-mode loading conditions regardless of whether the T-stress was considered. This result suggests that the size of the core region used to predict the crack initiation direction and fracture strength based on the GMTS criterion should be chosen more carefully.

  2. Psychometric Testing Methods for Children's Social Skills

    Science.gov (United States)

    Matson, Johnny L.; Wilkins, Jonathan

    2009-01-01

    Social skill excesses and deficits have garnered considerable attention from researchers and clinicians over the last three decades. This trend is undoubtedly due to the central role these problems play in psychopathology and the general adjustment of children of all ages. Not surprisingly, these concerns and attention to such problems have also…

  3. Psychometric methods for automated test design

    NARCIS (Netherlands)

    Geerlings, H.

    2012-01-01

    Flexible forms of testing, such as adaptive testing and testing on demand, usually require large item pools to avoid overexposure of the items. After an initial investment in the development of an item generator, test items can be (semi-)automatically generated in a negligible amount of time. A dist

  4. QuickEval: a web application for psychometric scaling experiments

    Science.gov (United States)

    Van Ngo, Khai; Storvik, Jehans J.; Dokkeberg, Christopher A.; Farup, Ivar; Pedersen, Marius

    2015-01-01

    QuickEval is a web application for carrying out psychometric scaling experiments. It offers the possibility of running controlled experiments in a laboratory, or large scale experiment over the web for people all over the world. It is a unique one of a kind web application, and it is a software needed in the image quality field. It is also, to the best of knowledge, the first software that supports the three most common scaling methods; paired comparison, rank order, and category judgement. It is also the first software to support rank order. Hopefully, a side effect of this newly created software is that it will lower the threshold to perform psychometric experiments, improve the quality of the experiments being carried out, make it easier to reproduce experiments, and increase research on image quality both in academia and industry. The web application is available at www.colourlab.no/quickeval.

  5. A psychometric evaluation of the digital logic concept inventory

    Science.gov (United States)

    Herman, Geoffrey L.; Zilles, Craig; Loui, Michael C.

    2014-10-01

    Concept inventories hold tremendous promise for promoting the rigorous evaluation of teaching methods that might remedy common student misconceptions and promote deep learning. The measurements from concept inventories can be trusted only if the concept inventories are evaluated both by expert feedback and statistical scrutiny (psychometric evaluation). Classical Test Theory and Item Response Theory provide two psychometric frameworks for evaluating the quality of assessment tools. We discuss how these theories can be applied to assessment tools generally and then apply them to the Digital Logic Concept Inventory (DLCI). We demonstrate that the DLCI is sufficiently reliable for research purposes when used in its entirety and as a post-course assessment of students' conceptual understanding of digital logic. The DLCI can also discriminate between students across a wide range of ability levels, providing the most information about weaker students' ability levels.

  6. A systematic review evaluating the psychometric properties of measures of social inclusion

    Science.gov (United States)

    Milbourn, Ben; Martin, Robyn; Buchanan, Angus; Chung, Donna; Speyer, Renée

    2017-01-01

    Introduction Improving social inclusion opportunities for population health has been identified as a priority area for international policy. There is a need to comprehensively examine and evaluate the quality of psychometric properties of measures of social inclusion that are used to guide social policy and outcomes. Objective To conduct a systematic review of the literature on all current measures of social inclusion for any population group, to evaluate the quality of the psychometric properties of identified measures, and to evaluate if they capture the construct of social inclusion. Methods A systematic search was performed using five electronic databases: CINAHL, PsycINFO, Embase, ERIC and Pubmed and grey literature were sourced to identify measures of social inclusion. The psychometric properties of the social inclusion measures were evaluated against the COSMIN taxonomy of measurement properties using pre-set psychometric criteria. Results Of the 109 measures identified, twenty-five measures, involving twenty-five studies and one manual met the inclusion criteria. The overall quality of the reviewed measures was variable, with the Social and Community Opportunities Profile-Short, Social Connectedness Scale and the Social Inclusion Scale demonstrating the strongest evidence for sound psychometric quality. The most common domain included in the measures was connectedness (21), followed by participation (19); the domain of citizenship was covered by the least number of measures (10). No single instrument measured all aspects within the three domains of social inclusion. Of the measures with sound psychometric evidence, the Social and Community Opportunities Profile-Short captured the construct of social inclusion best. Conclusions The overall quality of the psychometric properties demonstrate that the current suite of available instruments for the measurement of social inclusion are promising but need further refinement. There is a need for a universal working

  7. THE MODERN RACISM SCALE: PSYCHOMETRIC

    Directory of Open Access Journals (Sweden)

    MANUEL CÁRDENAS

    2007-08-01

    Full Text Available An adaption of McConahay, Harder and Batts’ (1981 moderm racism scale is presented for Chilean population andits psychometric properties, (reliability and validity are studied, along with its relationship with other relevantpsychosocial variables in studies on prejudice and ethnic discrimination (authoritarianism, religiousness, politicalposition, etc., as well as with other forms of prejudice (gender stereotypes and homophobia. The sample consistedof 120 participants, students of psychology, resident in the city of Antofagasta (a geographical zone with a highnumber of Latin-American inmigrants. Our findings show that the scale seems to be a reliable instrument to measurethe prejudice towards Bolivian immigrants in our social environment. Likewise, important differences among thesubjects are detected with high and low scores in the psychosocial variables used.

  8. Physical capability scale: psychometric testing.

    Science.gov (United States)

    Resnick, Barbara; Boltz, Marie; Galik, Elizabeth; Wells, Chris

    2013-02-01

    The purpose of this study was to describe the psychometric testing of the Basic Physical Capability Scale. The study was a secondary data analysis of combined data sets from three studies. Study participants included 93 older adults, recruited from 2 acute-care settings and 110 older adults living in long-term care facilities. Rasch analysis was used for the testing of the measurement model. There was some support for construct validity based on the fit of the items to the scale across both samples. In addition, there was support for hypothesis testing as physical function was significantly associated with physical capability. There was evidence for internal consistency (Alpha coefficients of .77-.83) and interrater reliability based on an intraclass correlation of .81. This study provided preliminary support for the reliability and validity of the Basic Physical Capability Scale, and guidance for scale revisions and continued use.

  9. Psychometrics behind Computerized Adaptive Testing.

    Science.gov (United States)

    Chang, Hua-Hua

    2015-03-01

    The paper provides a survey of 18 years' progress that my colleagues, students (both former and current) and I made in a prominent research area in Psychometrics-Computerized Adaptive Testing (CAT). We start with a historical review of the establishment of a large sample foundation for CAT. It is worth noting that the asymptotic results were derived under the framework of Martingale Theory, a very theoretical perspective of Probability Theory, which may seem unrelated to educational and psychological testing. In addition, we address a number of issues that emerged from large scale implementation and show that how theoretical works can be helpful to solve the problems. Finally, we propose that CAT technology can be very useful to support individualized instruction on a mass scale. We show that even paper and pencil based tests can be made adaptive to support classroom teaching.

  10. 农村公路典型路段事故风险评价方法%Crash Risk As sessment Method for Typical Sections of Rural Roads Using Bayesian Networks

    Institute of Scientific and Technical Information of China (English)

    胡思涛; 朱艳茹; 项乔君

    2014-01-01

    农村公路急弯、陡坡、路侧险要等典型路段往往是事故易发多发路段。在现阶段农村公路安保工程资金有限的情况下,需对既有典型路段的事故风险进行定量评价和排序,为隐患路段的排查和安保工程分期实施提供依据。在现有研究成果的基础上,构建典型路段事故风险评价指标体系,提出一种基于贝叶斯网络的农村公路典型路段事故风险评价方法。该方法能有效集结专家知识和经验定量评价典型路段(包括单一路段和组合路段)的事故风险,并可以随着数据的更新不断完善模型。在农村公路事故资料相对缺乏的情况下,该方法具有较强的实用性。%Typical sections such as sharp turns, steep slopes and dangerous roadsides of the rural roads tend to be crash prone sections.In the case of limited budget for highway safety enhancement project,in order to identi-fy potential high-risk sections and provide the basis for implement in phases of safety enhancement project, it is necessary to evaluate quantitatively and sort the crash risk of typical sections.On the basis of related resear-ches, a crash risk assessment index system for typical sections has been constructed.And a crash risk assess-ment method for typical sections of rural roads using Bayesian networks was proposed.It is effective to evaluate the crash risk of typical sections ( including single sections and combination sections ) by combining expert knowledge and experience with the proposed method.It was also noted that the proposed model could be con-stantly improved as related data updated.The proposed method showed promise to be used for crash risk assess-ment especially when lack of accident relative information.

  11. Observers can voluntarily shift their psychometric functions without losing sensitivity.

    Science.gov (United States)

    Morgan, Michael; Dillenburger, Barbara; Raphael, Sabine; Solomon, Joshua A

    2012-01-01

    Psychometric sensory discrimination functions are usually modeled by cumulative Gaussian functions with just two parameters, their central tendency (μ) and their slope (1/σ). These correspond to Fechner's "constant" and "variable" errors, respectively. Fechner pointed out that even the constant error could vary over space and time and could masquerade as variable error. We wondered whether observers could deliberately introduce a constant error into their performance without loss of precision. In three-dot vernier and bisection tasks with the method of single stimuli, observers were instructed to favour one of the two responses when unsure of their answer. The slope of the resulting psychometric function was not significantly changed, despite a significant change in central tendency. Similar results were obtained when altered feedback was used to induce bias. We inferred that observers can adopt artificial response criteria without any significant increase in criterion fluctuation. These findings have implications for some studies that have measured perceptual "illusions" by shifts in the psychometric functions of sophisticated observers.

  12. A plea for new psychometric models in educational assessment.

    Science.gov (United States)

    Schuwirth, Lambert W T; van der Vleuten, Cees P M

    2006-04-01

    To describe the weaknesses of the current psychometric approach to assessment as a scientific model. The current psychometric model has played a major role in improving the quality of assessment of medical competence. It is becoming increasingly difficult, however, to apply this model to modern assessment methods. The central assumption in the current model is that medical competence can be subdivided into separate measurable stable and generic traits. This assumption has several far-reaching implications. Perhaps the most important is that it requires a numerical and reductionist approach, and that aspects such as fairness, defensibility and credibility are by necessity mainly translated into reliability and construct validity. These approaches are more and more difficult to align with modern assessment approaches such as mini-CEX, 360-degree feedback and portfolios. This paper describes some of the weaknesses of the psychometric model and aims to open a discussion on a conceptually different statistical approach to quality of assessment. We hope that the discussion opened by this paper will lead to the development of a conceptually different statistical approach to quality of assessment. A probabilistic or Bayesian approach would be worth exploring.

  13. Psychometric Factors Affecting Female Employees Physical Activity Status: Applying Trans-Theoretical Model and Theory of Planned Behavior

    National Research Council Canada - National Science Library

    M. Shafieinia; A.R. Heidarnia; A. Kazemnejad; R. Rajabi

    2015-01-01

    ... .The purpose of this study was to investigate the effective psychometric factors on physical activity of female employees, according to the Trans-theoretical Model and theory of planned behavior. Materials & Methods...

  14. The Psychometric Toolbox: An Excel Package for Use in Measurement and Psychometrics Courses

    Science.gov (United States)

    Ferrando, Pere J.; Masip-Cabrera, Antoni; Navarro-González, David; Lorenzo-Seva, Urbano

    2017-01-01

    The Psychometric Toolbox (PT) is a user-friendly, non-commercial package mainly intended to be used for instructional purposes in introductory courses of educational and psychological measurement, psychometrics and statistics. The PT package is organized in six separate modules or sub-programs: Data preprocessor (descriptive analyses and data…

  15. Psychometric properties of the French translation of the reduced KOOS and HOOS (KOOS-PS and HOOS-PS)

    DEFF Research Database (Denmark)

    Ornetti, P; Perruccio, A V; Roos, E M

    2009-01-01

    OBJECTIVE: To evaluate the psychometric properties of the French KOOS physical function (KOOS-PS) and HOOS physical function (HOOS-PS), specifically its feasibility, reliability, construct validity, and responsiveness. METHODS: Consecutive outpatients consulting for primary knee or hip osteoarthr......OBJECTIVE: To evaluate the psychometric properties of the French KOOS physical function (KOOS-PS) and HOOS physical function (HOOS-PS), specifically its feasibility, reliability, construct validity, and responsiveness. METHODS: Consecutive outpatients consulting for primary knee or hip...

  16. Item-Level Psychometrics and Predictors of Performance for Spanish/English Bilingual Speakers on "An Object and Action Naming Battery"

    Science.gov (United States)

    Edmonds, Lisa A.; Donovan, Neila J.

    2012-01-01

    Purpose: There is a pressing need for psychometrically sound naming materials for Spanish/English bilingual adults. To address this need, in this study the authors examined the psychometric properties of An Object and Action Naming Battery (An O&A Battery; Druks & Masterson, 2000) in bilingual speakers. Method: Ninety-one Spanish/English…

  17. Multilevel psychometric properties of the AHRQ hospital survey on patient safety culture

    Science.gov (United States)

    2010-01-01

    Background The Agency for Healthcare Research and Quality (AHRQ) Hospital Survey on Patient Safety Culture was designed to assess staff views on patient safety culture in hospital settings. The purpose of this study was to examine the multilevel psychometric properties of the survey. Methods Survey data from 331 U.S. hospitals with 2,267 hospital units and 50,513 respondents were analyzed to examine the psychometric properties of the survey's items and composites. Item factor loadings, intraclass correlations (ICCs), design effects, internal consistency reliabilities, and multilevel confirmatory factor analyses (MCFA) were examined as well as intercorrelations among the survey's composites. Results Psychometric analyses confirmed the multilevel nature of the data at the individual, unit and hospital levels of analysis. Results provided overall evidence supporting the 12 dimensions and 42 items included in the AHRQ Hospital Survey on Patient Safety Culture as having acceptable psychometric properties at all levels of analysis, with a few exceptions. The Staffing composite fell slightly below cutoffs in a number of areas, but is conceptually important given its impact on patient safety. In addition, one hospital-level model fit indicator for the Supervisor/Manager Expectations & Actions Promoting Patient Safety composite was low (CFI = .82), but all other psychometrics for this scale were good. Average dimension intercorrelations were moderate at .42 at the individual level, .50 at the unit level, and .56 at the hospital level. Conclusions Psychometric analyses conducted on a very large database of hospitals provided overall support for the patient safety culture dimensions and items included in the AHRQ Hospital Survey on Patient Safety Culture. The survey's items and dimensions overall are psychometrically sound at the individual, unit, and hospital levels of analysis and can be used by researchers and hospitals interested in assessing patient safety culture

  18. The Improvement and Implementation of Global Illumination Rendring Method Based on Point Cloud for Typical Landforms%基于点云的典型地貌全局光渲染方法的改进及实现

    Institute of Scientific and Technical Information of China (English)

    杨静波; 朱剑刚; 姜真杰

    2014-01-01

    针对典型地貌全局光渲染中的重点问题:环境遮挡以及色溢的渲染效率和效果,提出光线追踪、光能传递以外的另一种改进方法——点云计算方式。分析了点云算法的原理、特点和优越性,选取张家界石英砂岩峰林地貌三维模型作为样本,测试和比较了光线追踪和点云计算方法的实际效果,实验表明点云计算方式有更高的效率和更好的表现效果,论文也为其他典型地貌的全局光渲染提供了可行的制作方案和流程。%In the global illumination rendering for typical landforms,there are two key problems, namely , the efficiency and effectiveness of ambient occlusion and color bleeding . The paper presents an improved method other than the raytracing and radiosity method,which is called point cloud .We analyze the principle, characteristics and advantages of point cloud algorithm. By choosing Zhangjiajie quartz sandstone peak forest landforms as a sample,we set up a 3d model to test and compare the actual effects of ray tracing and point cloud method. Experiments show that point cloud method has higher efficiency and better effect. Paper also provides the feasible production solution and process for global illumination rendering of other typical landforms .

  19. Review of the Psychometric Evidence of the Perceived Stress Scale

    Directory of Open Access Journals (Sweden)

    Eun-Hyun Lee, RN, PhD

    2012-12-01

    Conclusion: Overall, the PSS is an easy-to-use questionnaire with established acceptable psychometric properties. However, future studies should evaluate these psychometric properties in greater depth, and validate the scale using diverse populations.

  20. Confessions, scapegoats and flying pigs: Psychometric testing and the law

    OpenAIRE

    Callie Theron

    2007-01-01

    The use of psychometric tests in personnel selection has been regarded with an extraordinary degree of suspicion and scepticism. This is especially true when selection occurs in respect of a diverse applicant group. Concern is expressed about the seemingly uncritical embracing of specific tenets related to the use of psychometric tests in personnel selection in the absence of any systematic coherent psychometric argument to justify these beliefs. The absence of such a supporting psychometric ...

  1. The Mental Vulnerability Questionnaire: a psychometric evaluation

    DEFF Research Database (Denmark)

    Eplov, Lene Falgaard; Petersen, Janne; Jørgensen, Torben

    2010-01-01

    The Mental Vulnerability Questionnaire was originally a 22 item scale, later reduced to a 12 item scale. In population studies the 12 item scale has been a significant predictor of health and illness. The scale has not been psychometrically evaluated for more than 30 years, and the aim of the pre......The Mental Vulnerability Questionnaire was originally a 22 item scale, later reduced to a 12 item scale. In population studies the 12 item scale has been a significant predictor of health and illness. The scale has not been psychometrically evaluated for more than 30 years, and the aim...... of the present study was both to evaluate the psychometric properties of the 22 and 12 item scales and of three new scales. The main study sample was a community sample comprising more than 6,000 men and women. In this sample the coefficients of homogeneity were all over 0.30 for the three new scales, but below...

  2. Testing typicality in multiverse cosmology

    Science.gov (United States)

    Azhar, Feraz

    2015-05-01

    In extracting predictions from theories that describe a multiverse, we face the difficulty that we must assess probability distributions over possible observations prescribed not just by an underlying theory, but by a theory together with a conditionalization scheme that allows for (anthropic) selection effects. This means we usually need to compare distributions that are consistent with a broad range of possible observations with actual experimental data. One controversial means of making this comparison is by invoking the "principle of mediocrity": that is, the principle that we are typical of the reference class implicit in the conjunction of the theory and the conditionalization scheme. In this paper, we quantitatively assess the principle of mediocrity in a range of cosmological settings, employing "xerographic distributions" to impose a variety of assumptions regarding typicality. We find that for a fixed theory, the assumption that we are typical gives rise to higher likelihoods for our observations. If, however, one allows both the underlying theory and the assumption of typicality to vary, then the assumption of typicality does not always provide the highest likelihoods. Interpreted from a Bayesian perspective, these results support the claim that when one has the freedom to consider different combinations of theories and xerographic distributions (or different "frameworks"), one should favor the framework that has the highest posterior probability; and then from this framework one can infer, in particular, how typical we are. In this way, the invocation of the principle of mediocrity is more questionable than has been recently claimed.

  3. Support for Alzheimer's Caregivers: Psychometric Evaluation of Familial and Friend Support Measures

    Science.gov (United States)

    Wilks, Scott E.

    2009-01-01

    Objective: Information on the shortened, 20-item version of the Perceived Social Support Scale (S-PSSS) is scarce. The purpose of this study is to evaluate the psychometric properties of the S-PSSS Family (SSfa) and Friends (SSfr) subscales. Method: Because of their common coping method of social support, a cross-sectional sample of Alzheimer's…

  4. Support for Alzheimer's Caregivers: Psychometric Evaluation of Familial and Friend Support Measures

    Science.gov (United States)

    Wilks, Scott E.

    2009-01-01

    Objective: Information on the shortened, 20-item version of the Perceived Social Support Scale (S-PSSS) is scarce. The purpose of this study is to evaluate the psychometric properties of the S-PSSS Family (SSfa) and Friends (SSfr) subscales. Method: Because of their common coping method of social support, a cross-sectional sample of Alzheimer's…

  5. psychotools - Infrastructure for Psychometric Modeling: Version 0.1-1

    OpenAIRE

    Zeileis, A.; Strobl, Carolin; Wickelmaier, F

    2011-01-01

    Infrastructure for psychometric modeling such as data classes (e.g., for paired comparisons) and basic model fitting functions (e.g., for Rasch and Bradley-Terry models). Intended especially as a common building block for fitting psychometric mixture models in package ‘‘psychomix’’ and psychometric tree models in package ‘‘psychotree’’. License: GPL-2

  6. Psychometric Properties of Questionnaires on Functional Health Status in Oropharyngeal Dysphagia: A Systematic Literature Review

    Science.gov (United States)

    Speyer, Renée; Cordier, Reinie; Kertscher, Berit; Heijnen, Bas J

    2014-01-01

    Introduction. Questionnaires on Functional Health Status (FHS) are part of the assessment of oropharyngeal dysphagia. Objective. To conduct a systematic review of the literature on the psychometric properties of English-language FHS questionnaires in adults with oropharyngeal dysphagia. Methods. A systematic search was performed using the electronic databases Pubmed and Embase. The psychometric properties of the questionnaires were determined based on the COSMIN taxonomy of measurement properties and definitions for health-related patient-reported outcomes and the COSMIN checklist using preset psychometric criteria. Results. Three questionnaires were included: the Eating Assessment Tool (EAT-10), the Swallowing Outcome after Laryngectomy (SOAL), and the Self-report Symptom Inventory. The Sydney Swallow Questionnaire (SSQ) proved to be identical to the Modified Self-report Symptom Inventory. All FHS questionnaires obtained poor overall methodological quality scores for most measurement properties. Conclusions. The retrieved FHS questionnaires need psychometric reevaluation; if the overall methodological quality shows satisfactory improvement on most measurement properties, the use of the questionnaires in daily clinic and research can be justified. However, in case of insufficient validity and/or reliability scores, new FHS questionnaires need to be developed using and reporting on preestablished psychometric criteria as recommended in literature. PMID:24877095

  7. Psychometrical indicators of the Russian-language version of the Satisfaction with Life Scale

    Directory of Open Access Journals (Sweden)

    Serguei Petrovich Yelshansky

    2015-11-01

    Full Text Available Purpose. Satisfaction with life is one of the basic concepts of positive psychology. Unsa-tisfied with the life person is unlikely to feel happy or to experience any positive feeling. The article presents the results of research on psychometric indicators of the Russian version of the scale of satisfaction with life. The number of points of the scale shows the level of life satisfaction. The subjects of the study were psychometric indicators of Russian language version of the scale – reliability, validity, internal consistency.Methodology. We used standard psychometric procedures for checking these parameters. Assessment of the retest reliability of the test and its validity (by analyzing correlations with contrasted and similar parameters, as well as an analysis of several indicators of internal consistency have been done.Results. In the study, the authors developed an original Russian-language version of the test; new data on its psychometric indicators have been received. The results of psychometric studies have found high retest reliability of the Russian version of the Satisfaction with Life Scale, its good internal consistency, confirmed its validity.Practical implications. Presented original translation of the scale can be used in work with Russian-speaking examinees in scientific psychological research, and in the work of psychologists-practitioners and psychotherapists focused on positive psychology and methods of development of personal potential.

  8. The Psychometric Evaluation of Human Life Histories.

    Science.gov (United States)

    Copping, Lee T; Campbell, Anne; Muncer, Steven; Richardson, George B

    2017-01-01

    A recent critique of Copping, Campbell, and Muncer raised several issues concerning the validity of psychometric assessment techniques in the study of life history (LH) strategies. In this reply, some of our key concerns about relying on aggregated psychometric measures are explained, and we raise questions generally regarding the use of higher order factor structures. Responses to some of the statistical issues raised by Figueredo et al. are also detailed. We stand by our original conclusions and call for more careful consideration of instruments used to evaluate hypotheses derived from LH theory.

  9. A preliminary psychometric evaluation of Music in Dementia Assessment Scales (MiDAS)

    DEFF Research Database (Denmark)

    McDermott, Orii; Orgeta, Vasiliki; Ridder, Hanne Mette Ochsner

    2014-01-01

    development to maximize its content validity. This study aimed to evaluate the psychometric properties of MiDAS. Methods: Care home residents with dementia attended weekly group music therapy for up to ten sessions. Music therapists and care home staff were requested to complete weekly MiDAS ratings......-retest reliability, adequate concurrent validity, and good construct validity. High factor loadings between the five MiDAS Visual Analogue Scale (VAS) items, levels of Interest, Response, Initiation, Involvement ,and Enjoyment, were found. Conclusions: This study indicates that MiDAS has good psychometric properties...... despite the small sample size. Future research with a larger sample size could provide a more in-depth psychometric evaluation, including further exploration of the underlying factors. MiDAS provides a measure of engagement with musical experience and offers insight into who is likely to benefit on other...

  10. Psychometric Field Study of Hereditary Angioedema Quality of Life Questionnaire for Adults

    DEFF Research Database (Denmark)

    Prior, Nieves; Remor, Eduardo; Pérez-Fernández, Elia

    2016-01-01

    was to perform a cross-cultural validation and psychometric study of the HAE-QoL in an international setting. METHODS: Cross-cultural adaptation of the Spanish HAE-QoL draft version and an international rating phase with experts were performed. The resultant version of the HAE-QoL, a clinical questionnaire......, and Short Form 36-item Health Survey Version 2.0 (SF-36v2) were pilot tested internationally. Item reduction was based on both descriptive and exploratory factor analysis. Psychometric properties were assessed. RESULTS: Cross-cultural adaptation of the HAE-QoL was performed in 18 countries. The draft...... and social functioning, concern about offspring, perceived control over illness, and mental health). Strong psychometric properties were observed (Cronbach's α 0.92; test-retest reliability 0.87). Convergent validity showed mild to moderate correlations with SF-36v2 physical and mental component summaries (0...

  11. The Functional Idiographic Assessment Template-Questionnaire (FIAT-Q): Initial Psychometric Properties.

    Science.gov (United States)

    Darrow, Sabrina M; Callaghan, Glenn C; Bonow, Jordan T; Follette, William C

    2014-04-01

    The evidence based assessment (EBA) movement stresses the importance of psychological measures with strong psychometric properties and clinical utility. The Functional Idiographic Assessment Template system (FIAT; Callaghan, 2006) is a functional analytic behavioral approach to the assessment of interpersonal functioning for use with therapies like Functional Analytic Psychotherapy (FAP; Kohlenberg & Tsai, 1991). While research has begun to demonstrate the clinical utility of the FIAT, its psychometric properties have not been explored. The present study examines the Functional Idiographic Assessment Template-Questionnaire (FIAT-Q), a self-report measure contained in the FIAT. Two different approaches are used to explore the psychometric properties and structure of the FIAT-Q, and test-retest reliability is examined. These methods are discussed along with the use of the FIAT-Q as an alternative to nosological assessment of client behaviors.

  12. Testing typicality in multiverse cosmology

    CERN Document Server

    Azhar, Feraz

    2015-01-01

    In extracting predictions from theories that describe a multiverse, we face the difficulty that we must assess probability distributions over possible observations, prescribed not just by an underlying theory, but by a theory together with a conditionalization scheme that allows for (anthropic) selection effects. This means we usually need to compare distributions that are consistent with a broad range of possible observations, with actual experimental data. One controversial means of making this comparison is by invoking the 'principle of mediocrity': that is, the principle that we are typical of the reference class implicit in the conjunction of the theory and the conditionalization scheme. In this paper, I quantitatively assess the principle of mediocrity in a range of cosmological settings, employing 'xerographic distributions' to impose a variety of assumptions regarding typicality. I find that for a fixed theory, the assumption that we are typical gives rise to higher likelihoods for our observations. I...

  13. Psychometric properties of the NOMO 1.0 tested among adult powered-mobility users

    DEFF Research Database (Denmark)

    Sund, Terje; Brandt, Åse; Anttila, Heidi

    2017-01-01

    (Participation Repertoire). PURPOSE: This study aimed to investigate a range of psychometric properties of the NOMO 1.0 in a sample of adult powered mobility device (PMD) users. METHOD: Data collected from PMD users ( N = 248) in Denmark, Finland, and Norway as part of a larger study were analyzed using state...... scale and six components of the Frequency scale. IMPLICATIONS: The NOMO 1.0 should be used for research purposes and not for clinical practice. Better reliability should be established for the Need for Assistance and Ease/Difficulty scales prior to further psychometric testing to establish the validity...

  14. Modelling Typical Online Language Learning Activity

    Science.gov (United States)

    Montoro, Carlos; Hampel, Regine; Stickler, Ursula

    2014-01-01

    This article presents the methods and results of a four-year-long research project focusing on the language learning activity of individual learners using online tasks conducted at the University of Guanajuato (Mexico) in 2009-2013. An activity-theoretical model (Blin, 2010; Engeström, 1987) of the typical language learning activity was used to…

  15. Methodologically sound: Evaluating the psychometric approach to the assessment of human life history [reply to Copping, Campbell, and Muncer, 2014].

    Science.gov (United States)

    Figueredo, Aurelio José; Cabeza de Baca, Tomás; Black, Candace Jasmine; García, Rafael Antonio; Fernandes, Heitor Barcellos Ferreira; Wolf, Pedro Sofio Abril; Woodley of Menie, Michael Anthony

    2015-04-06

    Copping, Campbell, and Muncer (2014) have recently published an article critical of the psychometric approach to the assessment of life history (LH) strategy. Their purported goal was testing for the convergent validation and examining the psychometric structure of the High-K Strategy Scale (HKSS). As much of the literature on the psychometrics of human LH during the past decade or so has emanated from our research laboratory and those of close collaborators, we have prepared this detailed response. Our response is organized into four main sections: (1) A review of psychometric methods for the assessment of human LH strategy, expounding upon the essence of our approach; (2) our theoretical/conceptual concerns regarding the critique, addressing the broader issues raised by the critique regarding the latent and hierarchical structure of LH strategy; (3) our statistical/methodological concerns regarding the critique, examining the validity and persuasiveness of the empirical case made specifically against the HKSS; and (4) our recommendations for future research that we think might be helpful in closing the gap between the psychometric and biometric approaches to measurement in this area. Clearly stating our theoretical positions, describing our existing body of work, and acknowledging their limitations should assist future researchers in planning and implementing more informed and prudent empirical research that will synthesize the psychometric approach to the assessment of LH strategy with complementary methods.

  16. Methodologically Sound: Evaluating the Psychometric Approach to the Assessment of Human Life History [Reply to Copping, Campbell, and Muncer, 2014

    Directory of Open Access Journals (Sweden)

    Aurelio José Figueredo

    2015-04-01

    Full Text Available Copping, Campbell, and Muncer (2014 have recently published an article critical of the psychometric approach to the assessment of life history (LH strategy. Their purported goal was testing for the convergent validation and examining the psychometric structure of the High-K Strategy Scale (HKSS. As much of the literature on the psychometrics of human LH during the past decade or so has emanated from our research laboratory and those of close collaborators, we have prepared this detailed response. Our response is organized into four main sections: (1 A review of psychometric methods for the assessment of human LH strategy, expounding upon the essence of our approach; (2 our theoretical/conceptual concerns regarding the critique, addressing the broader issues raised by the critique regarding the latent and hierarchical structure of LH strategy; (3 our statistical/methodological concerns regarding the critique, examining the validity and persuasiveness of the empirical case made specifically against the HKSS; and (4 our recommendations for future research that we think might be helpful in closing the gap between the psychometric and biometric approaches to measurement in this area. Clearly stating our theoretical positions, describing our existing body of work, and acknowledging their limitations should assist future researchers in planning and implementing more informed and prudent empirical research that will synthesize the psychometric approach to the assessment of LH strategy with complementary methods.

  17. Psychometric Consequences of Subpopulation Item Parameter Drift

    Science.gov (United States)

    Huggins-Manley, Anne Corinne

    2017-01-01

    This study defines subpopulation item parameter drift (SIPD) as a change in item parameters over time that is dependent on subpopulations of examinees, and hypothesizes that the presence of SIPD in anchor items is associated with bias and/or lack of invariance in three psychometric outcomes. Results show that SIPD in anchor items is associated…

  18. Psychometric Measurement Models and Artificial Neural Networks

    Science.gov (United States)

    Sese, Albert; Palmer, Alfonso L.; Montano, Juan J.

    2004-01-01

    The study of measurement models in psychometrics by means of dimensionality reduction techniques such as Principal Components Analysis (PCA) is a very common practice. In recent times, an upsurge of interest in the study of artificial neural networks apt to computing a principal component extraction has been observed. Despite this interest, the…

  19. Psychometric Consequences of Subpopulation Item Parameter Drift

    Science.gov (United States)

    Huggins-Manley, Anne Corinne

    2017-01-01

    This study defines subpopulation item parameter drift (SIPD) as a change in item parameters over time that is dependent on subpopulations of examinees, and hypothesizes that the presence of SIPD in anchor items is associated with bias and/or lack of invariance in three psychometric outcomes. Results show that SIPD in anchor items is associated…

  20. Psychometric Characteristics of the Aberrant Behavior Checklist.

    Science.gov (United States)

    Aman, Michael G.; And Others

    1985-01-01

    Information is presented on the psychometric characteristics of the Aberrant Behavior Checklist, a measure of psychotropic drug effects. Internal consistency and test-retest reliability of the checklist appeared very good. Interrater reliability was generally in the moderate range. In general, validity was established for most Aberrant Behavior…

  1. Emotional Considerations in Spasmodic Dysphonia: Psychometric Quantification.

    Science.gov (United States)

    Cannito, Michael P.

    1991-01-01

    This study examined emotional characteristics of 18 female spasmodic dysphonic subjects in comparison to matched normal controls across psychometric measures of depression, anxiety, and somatic complaints. Statistically significant differences were noted between groups for all measures and over half of the dysphonic subjects exhibited clinically…

  2. What Is Embodiment? A Psychometric Approach

    Science.gov (United States)

    Longo, Matthew R.; Schuur, Friederike; Kammers, Marjolein P. M.; Tsakiris, Manos; Haggard, Patrick

    2008-01-01

    What is it like to have a body? The present study takes a psychometric approach to this question. We collected structured introspective reports of the rubber hand illusion, to systematically investigate the structure of bodily self-consciousness. Participants observed a rubber hand that was stroked either synchronously or asynchronously with their…

  3. Typical errors of ESP users

    Science.gov (United States)

    Eremina, Svetlana V.; Korneva, Anna A.

    2004-07-01

    The paper presents analysis of the errors made by ESP (English for specific purposes) users which have been considered as typical. They occur as a result of misuse of resources of English grammar and tend to resist. Their origin and places of occurrence have also been discussed.

  4. 几种常用似大地水准面插值方法精度分析%Several Typical Interpolation Method and its Precision Analysis Based on Quasi-Geoid Model

    Institute of Scientific and Technical Information of China (English)

    徐平; 杜向锋

    2014-01-01

    This article details several typical mathematical models of the interpolation methods of quasi-geoid,and compiles the corresponding model interpolation software on the basis of these models.Meanwhile,by using the interpolation methods provided by the inter-polation software and a certain quasi-geoid model,some GPS/leveling data are calculated by using elevation interpolation.Through the analysis of the interpolation results,some useful conclusions are drawn.%详细介绍了几种常用的似大地水准面插值方法的数学模型,并根据这些模型编写了相应的模型内插软件,利用该内插软件提供的内插方法及某似大地水准面模型,对一些GPS/水准数据进行了高程内插计算,通过对内插结果的分析获得了一些有益的结论。

  5. International study on the psychometric attributes of the non-motor symptoms scale in Parkinson disease.

    NARCIS (Netherlands)

    Martinez-Martin, P.; Rodriguez-Blazquez, C.; Abe, K.; Bhattacharyya, K.B.; Bloem, B.R.; Carod-Artal, F.J.; Prakash, R.; Esselink, R.A.J.; Falup-Pecurariu, C.; Gallardo, M.; Mir, P.; Naidu, Y.; Nicoletti, A.; Sethi, K.; Tsuboi, Y.; Hilten, J.J. van; Visser, M. de; Zappia, M.; Chaudhuri, K.R.

    2009-01-01

    BACKGROUND: Nonmotor symptoms (NMS) have a great impact on patients with Parkinson disease (PD). The Non-Motor Symptoms Scale (NMSS) is an instrument specifically designed for the comprehensive assessment of NMS in patients with PD. NMSS psychometric properties have been tested in this study. METHOD

  6. Psychometric Testing of the Chinese Version of the Decisional Balance Scale (CDBS)

    Science.gov (United States)

    Chen, Huey-Shys; Sheu, Jiunn-Jye; Chen, W. William

    2006-01-01

    The purpose of this study was to conduct psychometric testing on the Chinese version of the decisional balance scale (CDBS) with Taiwanese seventh, eighth, and ninth graders who were recruited from the Taipei metropolitan area. A random cluster sampling method was used with 554 adolescents between the ages of 13 and 17 years. Factor analysis…

  7. Psychometric Comparison of the Motivation Assessment Scale (MAS) and the Questions about Behavioral Function (QABF)

    Science.gov (United States)

    Koritsas, S.; Iacono, T.

    2013-01-01

    Background: The Motivation Assessment Scale (MAS) and the Questions About Behavioral Function (QABF) are frequently used to assess the learned function of challenging behaviour in people with intellectual disability (ID). The aim was to explore and compare the psychometric properties of the MAS and the QABF. Method: Seventy adults with ID and…

  8. Psychometric evaluation of a daily gastro-oesophageal reflux disease symptom measure

    DEFF Research Database (Denmark)

    Bytzer, Peter; Reimer, Christine; Smith, Gary

    2017-01-01

    pump inhibitor (PPI) treatment. MATERIAL AND METHODS: The psychometric properties of HRDQ were evaluated based on data from two clinical trials of patients with GORD with a partial response to PPIs, one from the UK and one from Denmark and Germany. RESULTS: The HRDQ had good internal consistency...

  9. Translation of the Manchester Clinical Supervision Scale (MCSS) into Danish and a preliminary psychometric validation

    DEFF Research Database (Denmark)

    Buus, Niels; Gonge, Henrik

    2013-01-01

    for the translation of the MCSS from English into Danish and to present a preliminary psychometric validation of the Danish version of the scale. Methods included a formal translation/back-translation procedure and statistical analyses. The sample consisted of MCSS scores from 139 Danish mental health nursing staff...

  10. A validation study of the psychometric properties of the Groningen Reflection Ability Scale

    DEFF Research Database (Denmark)

    Andersen, Nina Bjerre; O'Neill, Lotte; Gormsen, Lise Kirstine

    2014-01-01

    . The aim of this study was to adapt GRAS for use in a Danish setting and to investigate the psychometric properties of GRAS-DK. Methods We performed a cross-cultural adaptation of GRAS from Dutch to Danish. Next, we collected primary data online, performed a retest, analysed data descriptively, estimated...

  11. Psychometric analysis of the Patient Health Questionnaire in Danish patients with an implantable cardioverter defibrillator

    DEFF Research Database (Denmark)

    Pedersen, Susanne S.; Mathiasen, Kim; Christensen, Karl Bang

    2016-01-01

    OBJECTIVE: To assess the psychometric properties of the Patient Health Questionnaire (PHQ-9), a measure of depressive symptoms, in a large Danish national cohort of patients with heart disease, implanted with an implantable cardioverter defibrillator (ICD), using item response theory. METHODS...

  12. Psychometric properties of the satisfaction with food-related Life Scale

    DEFF Research Database (Denmark)

    Schnettler, Berta; Miranda, Horacio; Sepúlveda, José

    2013-01-01

    Objective: To evaluate the psychometric properties of the Satisfaction with Food-related Life (SWFL) scale and its relation to the Satisfaction with Life Scale (SWLS) in southern Chile. Methods: A survey was applied to a sample of 316 persons in the principal cities of southern Chile distributed...

  13. Psychometric Properties of an Arabic Version of the Depression Anxiety Stress Scales (DASS)

    Science.gov (United States)

    Moussa, Miriam Taouk; Lovibond, Peter; Laube, Roy; Megahead, Hamido A.

    2017-01-01

    Objective: To translate and evaluate the psychometric properties of an Arabic-language version of the Depression Anxiety Stress Scales (DASS). Method: The items were translated, back translated, refined, and tested in an Australian immigrant sample (N = 220). Results: Confirmatory factor analysis showed that the Arabic DASS discriminates between…

  14. Psychometrics of a Brief Measure of Emotional Self-Efficacy among Adolescents from the United States

    Science.gov (United States)

    Valois, Robert F.; Zullig, Keith J.

    2013-01-01

    Background: Preliminary data were collected to evaluate the psychometric properties of an emotional self-efficacy (ESE) measure in a sample of 3836 public high school adolescents who completed the Centers for Disease Control and Prevention (CDC) Youth Risk Behavior Survey in South Carolina. Methods: Principal axis factor analysis was followed by a…

  15. Psychometric Structure of a Comprehensive Objective Structured Clinical Examination: A Factor Analytic Approach

    Science.gov (United States)

    Volkan, Kevin; Simon, Steven R.; Baker, Harley; Todres, I. David

    2004-01-01

    Problem Statement and Background: While the psychometric properties of Objective Structured Clinical Examinations (OSCEs) have been studied, their latent structures have not been well characterized. This study examines a factor analytic model of a comprehensive OSCE and addresses implications for measurement of clinical performance. Methods: An…

  16. Psychometric properties of the satisfaction with food-related Life Scale

    DEFF Research Database (Denmark)

    Schnettler, Berta; Miranda, Horacio; Sepúlveda, José

    2013-01-01

    Objective: To evaluate the psychometric properties of the Satisfaction with Food-related Life (SWFL) scale and its relation to the Satisfaction with Life Scale (SWLS) in southern Chile. Methods: A survey was applied to a sample of 316 persons in the principal cities of southern Chile distributed ...

  17. Psychometric Properties of the Parenting Stress Index with Parents of Children with Autistic Disorder

    Science.gov (United States)

    Dardas, L. A.; Ahmad, M. M.

    2014-01-01

    Purpose: The purpose of this study was to examine the psychometric properties and the theoretical structure of the Parenting Stress Index-short form (PSI-SF) with Jordanian parents of children with autistic disorder. Methods: Using a cross-sectional design for data collection, the convenience sample of the study was composed of 184 Jordanian…

  18. The Quantitative Ethology of the Zebra Finch: A Study in Comparative Psychometrics.

    Science.gov (United States)

    Figueredo, Aurelio Jose; And Others

    1992-01-01

    A quantitative ethogram was developed for the zebra finch, using one-zero focal animal sampling on an ethologically comprehensive checklist of 52 behavioral items, and it was assessed for interobserver reliability and construct validity. Applying the quantitative methods of psychometrics allows verification of ethological theory and testing of…

  19. Psychometric evaluation of the Dutch version of the Subjective Opiate Withdrawal Scale (SOWS)

    NARCIS (Netherlands)

    Dijkstra, B.A.G.; Krabbe, P.F.M.; Riezebos, T.G.M.; Staak, C.P.F. van der; Jong, C.A.J. de

    2007-01-01

    AIM: To evaluate the psychometric properties of the Dutch version of the 16-item Subjective Opiate Withdrawal Scale (SOWS). The SOWS measures withdrawal symptoms at the time of assessment. METHODS: The Dutch SOWS was repeatedly administered to a sample of 272 opioid-dependent inpatients of four addi

  20. Psychometric Reevaluation of Parental Press for Academic Achievement and Postsecondary Planning Scale

    Science.gov (United States)

    Bates, Samantha; Ball, Annahita; Wilks, Scott

    2016-01-01

    Objective: Psychometric details of the Parental Press for Academic Achievement and Postsecondary Planning Scale (PPS), developed by Chicago Consortium of Chicago School Research, are scarce. The purpose of this study was to reexamine the properties of this 7-item measure. Method: The study utilized cross-sectional, self-reported data from 100…

  1. The Psychometric Properties of the Swedish Version of the EB Process Assessment Scale

    Science.gov (United States)

    Nyström, Siv; Åhsberg, Elizabeth

    2016-01-01

    Objective: This study examines whether the psychometric properties of the short version of the Evidence-Based Practice Process Assessment Scale (EBPPAS) remain satisfactory when translated and transferred to the context of Swedish welfare services. Method: The Swedish version of EBPPAS was tested on a sample of community-based professionals in…

  2. Development and Psychometric Testing of the Dogs and WalkinG Survey (DAWGS)

    Science.gov (United States)

    Richards, Elizabeth A.; McDonough, Meghan H.; Edwards, Nancy E.; Lyle, Roseann M.; Troped, Philip J.

    2013-01-01

    Purpose: Dog owners represent 40% of the population, a promising audience to increase population levels of physical activity. The purpose of this study was to develop and test the psychometric properties of a new instrument to assess social-cognitive theory constructs related to dog walking. Method: Dog owners ("N" = 431) completed the…

  3. Psychometric model for safety culture assessment in nuclear research facilities

    Energy Technology Data Exchange (ETDEWEB)

    Nascimento, C.S. do, E-mail: claudio.souza@ctmsp.mar.mil.br [Centro Tecnológico da Marinha em São Paulo (CTMSP), Av. Professor Lineu Prestes 2468, 05508-000 São Paulo, SP (Brazil); Andrade, D.A., E-mail: delvonei@ipen.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN – SP), Av. Professor Lineu Prestes 2242, 05508-000 São Paulo, SP (Brazil); Mesquita, R.N. de, E-mail: rnavarro@ipen.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN – SP), Av. Professor Lineu Prestes 2242, 05508-000 São Paulo, SP (Brazil)

    2017-04-01

    Highlights: • A psychometric model to evaluate ‘safety climate’ at nuclear research facilities. • The model presented evidences of good psychometric qualities. • The model was applied to nuclear research facilities in Brazil. • Some ‘safety culture’ weaknesses were detected in the assessed organization. • A potential tool to develop safety management programs in nuclear facilities. - Abstract: A safe and reliable operation of nuclear power plants depends not only on technical performance, but also on the people and on the organization. Organizational factors have been recognized as the main causal mechanisms of accidents by research organizations through USA, Europe and Japan. Deficiencies related with these factors reveal weaknesses in the organization’s safety culture. A significant number of instruments to assess the safety culture based on psychometric models that evaluate safety climate through questionnaires, and which are based on reliability and validity evidences, have been published in health and ‘safety at work’ areas. However, there are few safety culture assessment instruments with these characteristics (reliability and validity) available on nuclear literature. Therefore, this work proposes an instrument to evaluate, with valid and reliable measures, the safety climate of nuclear research facilities. The instrument was developed based on methodological principles applied to research modeling and its psychometric properties were evaluated by a reliability analysis and validation of content, face and construct. The instrument was applied to an important nuclear research organization in Brazil. This organization comprises 4 research reactors and many nuclear laboratories. The survey results made possible a demographic characterization and the identification of some possible safety culture weaknesses and pointing out potential areas to be improved in the assessed organization. Good evidence of reliability with Cronbach's alpha

  4. Typicality, graded membership, and vagueness.

    Science.gov (United States)

    Hampton, James A

    2007-05-01

    This paper addresses theoretical problems arising from the vagueness of language terms, and intuitions of the vagueness of the concepts to which they refer. It is argued that the central intuitions of prototype theory are sufficient to account for both typicality phenomena and psychological intuitions about degrees of membership in vaguely defined classes. The first section explains the importance of the relation between degrees of membership and typicality (or goodness of example) in conceptual categorization. The second and third section address arguments advanced by Osherson and Smith (1997), and Kamp and Partee (1995), that the two notions of degree of membership and typicality must relate to fundamentally different aspects of conceptual representations. A version of prototype theory-the Threshold Model-is proposed to counter these arguments and three possible solutions to the problems of logical selfcontradiction and tautology for vague categorizations are outlined. In the final section graded membership is related to the social construction of conceptual boundaries maintained through language use.

  5. Comparison of Two Typical Detection Methods of Anti-Falling Safety Device with Gear Cone Drum%两种典型防坠安全器检测方法的比较研究

    Institute of Scientific and Technical Information of China (English)

    杨义; 丁涛

    2016-01-01

    齿轮锥鼓形渐进式防坠安全器是目前建筑工地上广泛使用的人货两用升降机中最关键的安全部件,其性能和效果的好坏直接决定着施工升降机能否能长期安全使用,因此对安全器进行有效的定期检测尤为重要。通过比较目前广泛应用的两种典型的检测方法—试验架试验法和试验台试验法,分析各自优劣点和适用条件,并阐述试验台试验法的发展趋势。%The anti-falling safety device with gear cone drum is the most important safety component of construction hoist.Its performance and effectiveness produce great impact on construction hoist and decides whether it can be used safely for a long time.Therefore,there is an urgent need to make regu-lar detection for anti-falling safety device.This paper compares the two typical detection methods and analyzes their strengths,weaknesses and applicable conditions.Some proposals are put forward for the development trend of test-bed equipment.

  6. Typical horticultural products between tradition and innovation

    Directory of Open Access Journals (Sweden)

    Innocenza Chessa

    2009-10-01

    Full Text Available Recent EU and National policies for agriculture and rural development are mainly focused to foster the production of high quality products as a result of the increasing demand of food safety, typical foods and traditional processing methods. Another word very often used to describe foods in these days is “typicality” which pools together the concepts of “food connected with a specific place”, “historical memory and tradition” and “culture”. The importance for the EU and the National administrations of the above mentioned kind of food is demonstrated, among other things, by the high number of the PDO, PGI and TSG certificated products in Italy. In this period of global markets and economical crisis farmers are realizing how “typical products” can be an opportunity to maintain their market share and to improve the economy of local areas. At the same time, new tools and strategy are needed to reach these goals. A lack of knowledge has being recognized also on how new technologies and results coming from recent research can help in exploiting traditional product and in maintaining the biodiversity. Taking into account the great variety and richness of typical products, landscapes and biodiversity, this report will describe and analyze the relationships among typicality, innovation and research in horticulture. At the beginning “typicality” and “innovation” will be defined also through some statistical features, which ranks Italy at the first place in terms of number of typical labelled products, then will be highlighted how typical products of high quality and connected with the tradition and culture of specific production areas are in a strict relationship with the value of agro-biodiversity. Several different examples will be used to explain different successful methods and/or strategies used to exploit and foster typical Italian vegetables, fruits and flowers. Finally, as a conclusion, since it is thought that

  7. Comparison among different strengthening methods for a typical RC classroom frame in zones with seismic intensity Ⅶ%7度区典型框架教学楼抗震加强措施效果对比

    Institute of Scientific and Technical Information of China (English)

    陆新征; 马玉虎; 陈浩宇; 周萌; 叶列平

    2011-01-01

    In the Wenchuan Earthquake, many school buildings collapsed, which caused serious casualties. So after the earthquake, Ministry of Housing and Urban-Rural Development, China Academic of Engineering, and China Earthquake Administrator proposed different strengthening methods to upgrade the seismic design of school buildings. However, the actual effects of these proposals have not been quantitatively evaluated. So in this work, fiber-beam element model with validated stirrups confined concrete constitutive law is used to build the nonlinear finite element model of a typical reinforced concrete (RC) classroom frame in zones with seismic intensity Ⅶ during the Wenchuan Earthquake. The effects of different strengthening methods on collapse-resistance are studied with collapse-fragility analysis that is based on the incremental dynamic analysis (IDA). Further design suggestions are then proposed.%由于汶川地震导致大量中小学校建筑倒塌,造成巨大伤亡,住建部、中国工程院和中国地震局分别提出了不同的校舍抗震设计加强要求,但这些加强措施的实际抗倒塌效果尚缺乏定量研究.本文采用纤维梁模型,并选择合适的钢筋约束混凝土本构,对汶川地震7度区典型钢筋混凝土框架结构教学楼进行了基于IDA的倒塌率分析,研究了不同抗震加强措施的防倒塌效果,进而给出了相应的设计建议.

  8. Weight bias internalization scale: psychometric properties and population norms.

    Directory of Open Access Journals (Sweden)

    Anja Hilbert

    Full Text Available OBJECTIVE: Internalizing the pervasive weight bias commonly directed towards individuals with overweight and obesity, co-occurs with increased psychopathology and impaired quality of life. This study sought to establish population norms and psychometric properties of the most widely used self-report questionnaire, the Weight Bias Internalization Scale (WBIS, in a representative community sample. DESIGN AND METHODS: In a survey of the German population, N = 1158 individuals with overweight and obesity were assessed with the WBIS and self-report measures for convergent validation. RESULTS: Item analysis revealed favorable item-total correlation of all but one WBIS item. With this item removed, item homogeneity and internal consistency were excellent. The one-factor structure of the WBIS was confirmed using confirmatory factor analysis. Convergent validity was shown through significant associations with measures of depressive and somatoform symptoms. The WBIS contributed to the explanation of variance in depressive and somatoform symptoms over and above body mass index. Higher WBIS scores were found in women than in men, in individuals with obesity than in individuals with overweight, and in those with lower education or income than those with higher education or income. Sex-specific norms were provided. CONCLUSIONS: The results showed good psychometric properties of the WBIS after removal of one item. Future research is warranted on further indicators of reliability and validity, for example, retest reliability, sensitivity to change, and prognostic validity.

  9. Transfer Learning for Collaborative Filtering Using a Psychometrics Model

    Directory of Open Access Journals (Sweden)

    Haijun Zhang

    2016-01-01

    Full Text Available In a real e-commerce website, usually only a small number of users will give ratings to the items they purchased, and this can lead to the very sparse user-item rating data. The data sparsity issue will greatly limit the recommendation performance of most recommendation algorithms. However, a user may register accounts in many e-commerce websites. If such users’ historical purchasing data on these websites can be integrated, the recommendation performance could be improved. But it is difficult to align the users and items between these websites, and thus how to effectively borrow the users’ rating data of one website (source domain to help improve the recommendation performance of another website (target domain is very challenging. To this end, this paper extended the traditional one-dimensional psychometrics model to multidimension. The extended model can effectively capture users’ multiple interests. Based on this multidimensional psychometrics model, we further propose a novel transfer learning algorithm. It can effectively transfer users’ rating preferences from the source domain to the target domain. Experimental results show that the proposed method can significantly improve the recommendation performance.

  10. A Psychometric Evaluation of the Danish Version of the Theory of Mind Storybook for 8-14 Year-Old Children

    DEFF Research Database (Denmark)

    Clemmensen, Lars; Bartels-Velthuis, Agna A; Jespersen, Rókur Av F

    2016-01-01

    BACKGROUND: Theory-of-Mind (ToM) keeps on developing in late childhood and early adolescence, and the study of ToM development later in childhood had to await the development of sufficiently sensitive tests challenging more mature children. The current study aimed to investigate the psychometric...... properties of the Danish version of the Theory-of-Mind Storybook Frederik (ToM-Frederik). METHODS: We assessed whether ToM-Frederik scores differed between a group of 41 typically developing (TD) children and a group of 33 children with High Functioning Autism Spectrum Disorder (HFASD). A lower mean To......M-Frederik as a valid indicator of deficits at the group level in children with HFASD between 7 and 14 years of age. Furthermore, the convergent validity is supported....

  11. The Relationship Satisfaction scale - psychometric properties

    OpenAIRE

    Espen Røysamb; Joar Vittersø; Kristian Tambs

    2014-01-01

    The aim of this study was to establish the psychometric properties of the new Relationship Satisfaction (RS) scale. Two population based samples were used: The Norwegian Mother and Child Cohort Study (MoBa, N=117,178) and The Quality of Life study (N=347). Convergent and discriminant validity was investigated in relation to the Quality of Marriage Index (QMI), the Satisfaction With Life Scale (SWLS), Relationship Satisfaction of partner, Big Five personality traits (IPIP50) and future relatio...

  12. Four Theorems on the Psychometric Function

    Science.gov (United States)

    May, Keith A.; Solomon, Joshua A.

    2013-01-01

    In a 2-alternative forced-choice (2AFC) discrimination task, observers choose which of two stimuli has the higher value. The psychometric function for this task gives the probability of a correct response for a given stimulus difference, . This paper proves four theorems about the psychometric function. Assuming the observer applies a transducer and adds noise, Theorem 1 derives a convenient general expression for the psychometric function. Discrimination data are often fitted with a Weibull function. Theorem 2 proves that the Weibull “slope” parameter, , can be approximated by , where is the of the Weibull function that fits best to the cumulative noise distribution, and depends on the transducer. We derive general expressions for and , from which we derive expressions for specific cases. One case that follows naturally from our general analysis is Pelli's finding that, when , . We also consider two limiting cases. Theorem 3 proves that, as sensitivity improves, 2AFC performance will usually approach that for a linear transducer, whatever the actual transducer; we show that this does not apply at signal levels where the transducer gradient is zero, which explains why it does not apply to contrast detection. Theorem 4 proves that, when the exponent of a power-function transducer approaches zero, 2AFC performance approaches that of a logarithmic transducer. We show that the power-function exponents of 0.4–0.5 fitted to suprathreshold contrast discrimination data are close enough to zero for the fitted psychometric function to be practically indistinguishable from that of a log transducer. Finally, Weibull reflects the shape of the noise distribution, and we used our results to assess the recent claim that internal noise has higher kurtosis than a Gaussian. Our analysis of for contrast discrimination suggests that, if internal noise is stimulus-independent, it has lower kurtosis than a Gaussian. PMID:24124456

  13. The Alliance Negotiation Scale: A psychometric investigation.

    Science.gov (United States)

    Doran, Jennifer M; Safran, Jeremy D; Muran, J Christopher

    2016-08-01

    This study investigates the utility and psychometric properties of a new measure of psychotherapy process, the Alliance Negotiation Scale (ANS; Doran, Safran, Waizmann, Bolger, & Muran, 2012). The ANS was designed to operationalize the theoretical construct of negotiation (Safran & Muran, 2000), and to extend our current understanding of the working alliance concept (Bordin, 1979). The ANS was also intended to improve upon existing measures such as the Working Alliance Inventory (WAI; Horvath & Greenberg, 1986, 1989) and its short form (WAI-S; Tracey & Kokotovic, 1989) by expanding the emphasis on negative therapy process. The present study investigates the psychometric validity of the ANS test scores and interpretation-including confirming its original factor structure and evaluating its internal consistency and construct validity. Construct validity was examined through the ANS' convergence and divergence with several existing scales that measure theoretically related constructs. The results bolster and extend previous findings about the psychometric integrity of the ANS, and begin to illuminate the relationship between negotiation and other important variables in psychotherapy research. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  14. Psychometric Assessment of Stereoscopic Head-Mounted Displays

    Science.gov (United States)

    2016-06-29

    Journal Article 3. DATES COVERED (From – To) Jan 2015 - Dec 2015 4. TITLE AND SUBTITLE PSYCHOMETRIC ASSESSMENT OF STEREOSCOPIC HEAD- MOUNTED DISPLAYS...disparity. This paper details the psychometric validation of the stereoscopic rendering of a virtual environment using game-based simulation software...mounted display, near eye display, stereo display, stereo HMD, psychometric assessment, stereoscopic performance, eye-limited stereo vision. 16

  15. Development and psychometric validation of the verbal affective memory test

    DEFF Research Database (Denmark)

    Jensen, Christian Gaden; Hjordt, Liv V; Stenbæk, Dea S

    2015-01-01

    -taboo words. Second, we studied the test's psychometric properties in healthy adults. Finally, we investigated whether individuals diagnosed with Seasonal Affective Disorder (SAD) differed from healthy controls on seasonal changes in affective recall. Recall rates were internally consistent and reliable...... psychometric properties. VAMT-24 seems especially sensitive to measuring positive verbal recall bias, perhaps due to the application of common, non-taboo words. Based on the psychometric and clinical results, we recommend VAMT-24 for international translations and studies of affective memory....

  16. Psychometric properties of startle and corrugator response in NPU, affective picture viewing, and resting state tasks.

    Science.gov (United States)

    Kaye, Jesse T; Bradford, Daniel E; Curtin, John J

    2016-08-01

    The current study provides a comprehensive evaluation of critical psychometric properties of commonly used psychophysiology laboratory tasks/measures within the NIMH RDoC. Participants (N = 128) completed the no-shock, predictable shock, unpredictable shock (NPU) task, affective picture viewing task, and resting state task at two study visits separated by 1 week. We examined potentiation/modulation scores in NPU (predictable or unpredictable shock vs. no-shock) and affective picture viewing tasks (pleasant or unpleasant vs. neutral pictures) for startle and corrugator responses with two commonly used quantification methods. We quantified startle potentiation/modulation scores with raw and standardized responses. We quantified corrugator potentiation/modulation in the time and frequency domains. We quantified general startle reactivity in the resting state task as the mean raw startle response during the task. For these three tasks, two measures, and two quantification methods, we evaluated effect size robustness and stability, internal consistency (i.e., split-half reliability), and 1-week temporal stability. The psychometric properties of startle potentiation in the NPU task were good, but concerns were noted for corrugator potentiation in this task. Some concerns also were noted for the psychometric properties of both startle and corrugator modulation in the affective picture viewing task, in particular, for pleasant picture modulation. Psychometric properties of general startle reactivity in the resting state task were good. Some salient differences in the psychometric properties of the NPU and affective picture viewing tasks were observed within and across quantification methods. © 2016 The Authors. Psychophysiology published by Wiley Periodicals, Inc. on behalf of Society for Psychophysiological Research.

  17. Hail damage to typical aircraft surfaces.

    Science.gov (United States)

    Hayduk, R. J.

    1972-01-01

    Severe structural damage can occur when aircraft collide with hailstones. Consequently, methods of predicting hail damage to airplane surfaces are needed by the aircraft designer. This paper describes an analytical method of predicting the dent depth and final deformed shape for simple structural components impacted by hailstones. The solution was accomplished by adapting the DEPROSS computer program to the problem of normal impact of hail on flat metallic sheets and spherical metallic caps. Experimental data and analytical predictions are presented for hail damage to typical aircraft surfaces along with a description of the hail gun and hail simulation technique used in the experimental study.

  18. Measuring patient engagement: Development and psychometric properties of the Patient Health Engagement (PHE Scale

    Directory of Open Access Journals (Sweden)

    Guendalina eGraffigna

    2015-03-01

    Full Text Available Beyond the rhetorical call for increasing patients’ engagement, policy makers recognize the urgency to have an evidence-based measure of patients’ engagement and capture its effect when planning and implementing initiatives aimed at sustaining the engagement of consumers in their health.In this paper, authors describe the Patient Health Engagement Scale (PHE-scale, a measure of patient engagement that is grounded in rigorous conceptualization and appropriate psychometric methods.The scale was developed based on our previous conceptualization of patient engagement (the PHE-model. In particular, the items of the PHE-scale were developed based on the findings from the literature review and from interviews with chronic patients. Initial psychometric analysis was performed to pilot test a preliminary version of the items. The items were then refined and administered to a national sample of chronic patients (N=382 to assess the measure’s psychometric performance. A final phase of test-retest reliability was performed.The analysis showed that the PHE Scale has good psychometric properties with good correlation with concurrent measures and solid reliability.Having a valid and reliable measure to assess patient engagement is the first step in understanding patient engagement and its role in health care quality, outcomes, and cost containment. The PHE Scale shows a promising clinical relevance, indicating that it can be used to tailor intervention and assess changes after patient engagement interventions.

  19. Measuring patient engagement: development and psychometric properties of the Patient Health Engagement (PHE) Scale.

    Science.gov (United States)

    Graffigna, Guendalina; Barello, Serena; Bonanomi, Andrea; Lozza, Edoardo

    2015-01-01

    Beyond the rhetorical call for increasing patients' engagement, policy makers recognize the urgency to have an evidence-based measure of patients' engagement and capture its effect when planning and implementing initiatives aimed at sustaining the engagement of consumers in their health. In this paper, authors describe the Patient Health Engagement Scale (PHE-scale), a measure of patient engagement that is grounded in rigorous conceptualization and appropriate psychometric methods. The scale was developed based on our previous conceptualization of patient engagement (the PHE-model). In particular, the items of the PHE-scale were developed based on the findings from the literature review and from interviews with chronic patients. Initial psychometric analysis was performed to pilot test a preliminary version of the items. The items were then refined and administered to a national sample of chronic patients (N = 382) to assess the measure's psychometric performance. A final phase of test-retest reliability was performed. The analysis showed that the PHE Scale has good psychometric properties with good correlation with concurrent measures and solid reliability. Having a valid and reliable measure to assess patient engagement is the first step in understanding patient engagement and its role in health care quality, outcomes, and cost containment. The PHE Scale shows a promising clinical relevance, indicating that it can be used to tailor intervention and assess changes after patient engagement interventions.

  20. Development and Psychometric Evaluation of Scales: A Survey of Published Articles

    Directory of Open Access Journals (Sweden)

    Foroozan Atashzadeh-Shoorideh

    2015-10-01

    Full Text Available Background and purpose: Using valid and reliable instruments is an important way for collecting data in qualitative researches. This paper is a report of a study conducted to examine the extent of psychometric properties of the scales in research papers published in Journal of Advanced Nursing. Methods: In this study, the Journal of Advanced Nursing was chosen for systematic review. All articles which were published during 2007-2009 in this journal were collected and articles related to instrument development were selected. Each article was completely reviewed to identify the methods of instrument validation and reliability. Results: From 980 articles published in Journal of Advanced Nursing during 2007-2009, 41 (4.18% articles were about research methodology. In these, 12 articles (29.27% were related to developing an instrument. In this study, review of 12 articles that published in Journal of Advanced Nursing, 2007-2009, showed that some of the articles did not measure psychometric properties properly, thus some of the developed scales need to measure other types of necessary validity. In addition, reliability testing needs to be performed on each instrument used in a study before other statistical analysis are performed. From 12 articles, all of the articles measured and reported Cronbach’s alpha, but four of them did not measure test-retest. Conclusions: Although researchers put a great emphasis on methodology and statistical analysis, they pay less attention to the psychometric properties of their new instruments. The authors of this article hope to draw the attention of researcher to the importance of measuring psychometric properties of new instruments. Keywords: PSYCHOMETRIC, SCALES, CRITICAL REVIEW

  1. Association of typical versus atypical antipsychotics with symptoms and quality of life in schizophrenia.

    Directory of Open Access Journals (Sweden)

    Koichiro Fujimaki

    Full Text Available BACKGROUND: Several reports on patients with chronic schizophrenia suggest that atypical versus typical antipsychotics are expected to lead to better quality of life (QOL and cognitive function. Our aim was to examine the association of chronic treatment with typical or atypical antipsychotics with cognitive function, psychiatric symptoms, QOL, and drug-induced extrapyramidal symptoms in long-hospitalized patients with schizophrenia. METHODOLOGY AND PRINCIPAL FINDINGS: The Hasegawa Dementia Scale-Revised (HDS-R, Brief Psychiatric Rating Scale (BPRS, the Schizophrenia Quality of Life Scale, translated into Japanese (JSQLS, and the Drug-Induced Extrapyramidal Symptoms Scale (DIEPSS were used to evaluate cognitive function, psychiatric symptoms, QOL, and drug-induced extrapyramidal symptoms. We examined the correlation between the dose of antipsychotics and each measure derived from these psychometric tests. The student t-test was used to compare scores obtained from psychometric tests between patients receiving typical and atypical antipsychotics. Results showed significant correlations between chlorpromazine (CPZ-equivalent doses of typical antipsychotics and atypical antipsychotics, and the total BPRS score and BPRS subscale scores for positive symptoms. CPZ-equivalent doses of typical antipsychotics were correlated with the JSQLS subscale score for dysfunction of psycho-social activity and DIEPSS score. Furthermore, the total BPRS scores, BPRS subscale score for positive symptoms, the JSQLS subscale score for dysfunction of psycho-social activity, and the DIEPSS score were significantly higher in patients receiving typical antipsychotics than atypical antipsychotics. CONCLUSION AND SIGNIFICANCE: These findings suggest that long-term administration of typical antipsychotics has an unfavorable association with feelings of difficulties mixing in social situations in patients with chronic schizophrenia.

  2. Comparison of psychometric properties between usual-week and past-week self-reported physical activity questionnaires: a systematic review.

    Science.gov (United States)

    Doma, Kenji; Speyer, Renée; Leicht, Anthony S; Cordier, Reinie

    2017-01-31

    The aim was to critically appraise the methodological quality of studies and determine the psychometric qualities of Past-week and Usual-week Physical Activity Questionnaires (PAQs). Data sources were obtained from Pubmed and Embase. The eligibility criteria for selecting studies included: 1) at least one psychometric property of PAQs was examined in adults; 2) the PAQs either had a recall period of usual 7-days (Usual-week PAQs) within the past 12 months or during the past 7-days (Past-week PAQs); and 3) PAQs were self-administered. Study quality was evaluated using the COSMIN taxonomy and the overall psychometric qualities evaluated using pre-established psychometric criteria. Overall, 45 studies were reviewed to assess the psychometric properties of 21 PAQs with the methodological quality of most studies showing good to excellent ratings. When the relationship between PAQs and other instruments (i.e., convergent validity) were compared between recall methods, Past-week PAQs appeared to have stronger correlations than Usual-week PAQs. For the overall psychometric quality, the Incidental and Planned Exercise Questionnaire for the Usual-week (IPEQ-WA) and for the Past-week (IPEQ-W) had the greatest number of positive ratings. For all included PAQs, very few psychometric properties were assessed with poor ratings for the majority of the overall qualities of psychometric properties indicating the limitation of current PAQs. More research that covers a greater spectrum of psychometric properties is required to gain a better understanding of the qualities of current PAQs.

  3. Multilevel psychometric properties of the AHRQ hospital survey on patient safety culture

    Directory of Open Access Journals (Sweden)

    Sorra Joann S

    2010-07-01

    Full Text Available Abstract Background The Agency for Healthcare Research and Quality (AHRQ Hospital Survey on Patient Safety Culture was designed to assess staff views on patient safety culture in hospital settings. The purpose of this study was to examine the multilevel psychometric properties of the survey. Methods Survey data from 331 U.S. hospitals with 2,267 hospital units and 50,513 respondents were analyzed to examine the psychometric properties of the survey's items and composites. Item factor loadings, intraclass correlations (ICCs, design effects, internal consistency reliabilities, and multilevel confirmatory factor analyses (MCFA were examined as well as intercorrelations among the survey's composites. Results Psychometric analyses confirmed the multilevel nature of the data at the individual, unit and hospital levels of analysis. Results provided overall evidence supporting the 12 dimensions and 42 items included in the AHRQ Hospital Survey on Patient Safety Culture as having acceptable psychometric properties at all levels of analysis, with a few exceptions. The Staffing composite fell slightly below cutoffs in a number of areas, but is conceptually important given its impact on patient safety. In addition, one hospital-level model fit indicator for the Supervisor/Manager Expectations & Actions Promoting Patient Safety composite was low (CFI = .82, but all other psychometrics for this scale were good. Average dimension intercorrelations were moderate at .42 at the individual level, .50 at the unit level, and .56 at the hospital level. Conclusions Psychometric analyses conducted on a very large database of hospitals provided overall support for the patient safety culture dimensions and items included in the AHRQ Hospital Survey on Patient Safety Culture. The survey's items and dimensions overall are psychometrically sound at the individual, unit, and hospital levels of analysis and can be used by researchers and hospitals interested in assessing

  4. Risk perception and control, an integration of the psychometric research paradigm and social psychology

    Energy Technology Data Exchange (ETDEWEB)

    Haugen, K. [Norwegian University of Science and Technology, Dragvoll (Norway). Dept. of Psychology

    1998-07-01

    Full text of publication follows: this paper argues that perceptual control is an essential component in human risk evaluation. Control is seen as an integrative concept between the psychometric research paradigm and various psychological theories. The psychometric approach to the study of risk has mainly dealt with the intuitive judgements people do when they are asked to evaluate risky activities and technologies. It shows that people judge risk in relation to the possible consequences and probabilities related to an outcome; the former more typical for the public and the latter more often usedby experts. The psychometric research tradition has concentrated on doing human risk evaluations quantifiable and the reactions predictable. This paper also relates to possible practical implications of this strategy, namely that humans react heterogeneously to different kinds of threats due to perceived control. Theoretical ability to explain and elaborate perceptions of risk, as well as individual reactions, were the main criteria for the literature selection, which includes work on e.g. attribution theory, locus of control, and learned helplessness. Thus, the paper addresses available psychological views for a contribution to a developed theoretical framework for human risk evaluation. It seeks to compare and integrate the psychometric research tradition within social psychological theories. The way in which people find their informational basis for their risk judgements, either from others or from their own perceptions is also discussed. Furthermore, the theories are related to the social and psychological reactions of the Chernobyl accident. The paper concludes that psychological theories can contribute to a more comprehensive framework for the understanding of human risk evaluation, leading to a more coherent and integrative knowledge. (author)

  5. Computational Psychometrics in Communication and Implications in Decision Making

    Science.gov (United States)

    Cipresso, Pietro; Villani, Daniela; Repetto, Claudia; Bosone, Lucia; Balgera, Anna; Mauri, Maurizio; Villamira, Marco; Antonietti, Alessandro; Riva, Giuseppe

    2015-01-01

    Recent investigations emphasized the role of communication features on behavioral trust and reciprocity in economic decision making but no studies have been focused on the effect of communication on affective states in such a context. Thanks to advanced methods of computational psychometrics, in this study, affective states were deeply examined using simultaneous and synchronized recordings of gazes and psychophysiological signals in 28 female students during an investment game. Results showed that participants experienced different affective states according to the type of communication (personal versus impersonal). In particular, participants involved in personal communication felt more relaxed than participants involved in impersonal communication. Moreover, personal communication influenced reciprocity and participants' perceptions about trust and reciprocity. Findings were interpreted in the light of the Arousal/Valence Model and self-disclosure process. PMID:26339285

  6. Computational Psychometrics in Communication and Implications in Decision Making

    Directory of Open Access Journals (Sweden)

    Pietro Cipresso

    2015-01-01

    Full Text Available Recent investigations emphasized the role of communication features on behavioral trust and reciprocity in economic decision making but no studies have been focused on the effect of communication on affective states in such a context. Thanks to advanced methods of computational psychometrics, in this study, affective states were deeply examined using simultaneous and synchronized recordings of gazes and psychophysiological signals in 28 female students during an investment game. Results showed that participants experienced different affective states according to the type of communication (personal versus impersonal. In particular, participants involved in personal communication felt more relaxed than participants involved in impersonal communication. Moreover, personal communication influenced reciprocity and participants’ perceptions about trust and reciprocity. Findings were interpreted in the light of the Arousal/Valence Model and self-disclosure process.

  7. Psychometric properties of a Swedish version of the Consequences of Screening--Breast Cancer questionnaire.

    Science.gov (United States)

    Bolejko, Anetta; Brodersen, John; Zackrisson, Sophia; Wann-Hansson, Christine; Hagell, Peter

    2014-10-01

    To evaluate the psychometric properties of a questionnaire addressing psychosocial consequences of false-positive mammographic screening. The Consequences of Screening--Breast Cancer and Lung Cancer questionnaires target psychosocial consequences of false-positive cancer screening. The Consequences of Screening--Breast Cancer questionnaire and ten items not considered lung cancer specific from the Lung Cancer questionnaire have been adapted for use in mammographic screening in Sweden, but remain psychometrically untested. Instrument development paper with psychometric cross-sectional and test-retest design. Twelve scales of a Swedish questionnaire version were tested by the Rasch model and traditional psychometric methods. Women with false-positive (Group I, n = 640) and negative (Group II, n = 802) screening mammography responded to the study questionnaire and the Nottingham Health Profile during 2009-2011. Iterative analyses resulted in nine scales demonstrating Rasch model fit, but all scales exhibited poor targeting with relatively large floor effects. Corrected item-total correlations exceeded the recommended criterion. Score differences between Groups I and II and correlations with Nottingham Health Profile sections followed an expected pattern. Cronbach's α and test-retest reliability was acceptable for group-level assessments for ten and seven scales, respectively. Five scales (Sense of dejection, Anxiety, Behavioural, Sleep and Existential values) of the Swedish questionnaire version demonstrated the best psychometric properties. Other scales should be used more cautiously. Although filling an important gap, causes of concern were identified across scales. The questionnaire should therefore be considered for group-level assessments rather than for measurement of individual degrees of psychosocial consequences. © 2014 John Wiley & Sons Ltd.

  8. Care Dependency Scale - psychometric testing of the Polish version

    NARCIS (Netherlands)

    Dijkstra, Ate; Muszalik, Marta; Kedziora-Kornatowska, Kornelia; Kornatowski, Tomasz

    2010-01-01

    The importance of this study lies in the availability of psychometrically sound assessment instruments, which are of critical importance for the study of patient's care dependency and the provision of care to these patients. The aim of this study was to identify the psychometric properties of the Ca

  9. Psychometric Characteristics of the Gesell School Readiness Screening Test.

    Science.gov (United States)

    Lichtenstein, Robert

    The Gesell School Readiness Screening Test (GSRST) is widely used to identify "developmentally immature" children for placement in extra-year, transition programs in spite of a problematic absence of psychometric evidence and research support. In this study of psychometric characteristics of the GSRST, teacher ratings of classroom performance and…

  10. Psychometric Evaluation and Discussions of English Language Learners' Listening Comprehension

    Science.gov (United States)

    Seo, Daeryong; Taherbhai, Husein; Frantz, Roger

    2016-01-01

    The importance of listening in the context of English language acquisition is gaining acceptance, but its unique attributes in language performance, while substantively and qualitatively justifiable, are generally not psychometrically defined. This article psychometrically supports listening as a distinct domain among the three other domains of…

  11. Fitting psychometric functions using a fixed-slope parameter: an advanced alternative for estimating odor thresholds with data generated by ASTM E679.

    Science.gov (United States)

    Peng, Mei; Jaeger, Sara R; Hautus, Michael J

    2014-03-01

    Psychometric functions are predominately used for estimating detection thresholds in vision and audition. However, the requirement of large data quantities for fitting psychometric functions (>30 replications) reduces their suitability in olfactory studies because olfactory response data are often limited (psychometric functions to olfactory data obtained using the current standard protocol-American Society for Testing and Materials (ASTM) E679. The slope parameter of the individual-judge psychometric function is fixed to be the same as that of the group function; the same-shaped symmetrical sigmoid function is fitted only using the intercept. This study evaluated the proposed method by comparing it with 2 available methods. Comparison to conventional psychometric functions (fitted slope and intercept) indicated that the assumption of a fixed slope did not compromise precision of the threshold estimates. No systematic difference was obtained between the proposed method and the ASTM method in terms of group threshold estimates or threshold distributions, but there were changes in the rank, by threshold, of judges in the group. Overall, the fixed-slope psychometric function is recommended for obtaining relatively reliable individual threshold estimates when the quantity of data is limited.

  12. Psychometric testing and Human Resource Management

    Directory of Open Access Journals (Sweden)

    R. P. van der Merwe

    2002-09-01

    Full Text Available This is a cumulative report on the findings of various exploratory research that were done with regard to the practice of psychometric testing in the Eastern Cape. Recent and ongoing developments in the South African labour legislation, and especially the implications of the Employment Equity Act, highlight once again the importance of the validation of all instruments to be used for human assessment and selection purposes. Information was gathered to establish which psychometric tests are used, and for what purposes, in industry today. Biographical information on each organisation is supplied, including the number of employees. The role of psychometric testing in the selection procedure is discussed. The different tests used, as well as the test users, are also indicated. The findings of other, related research, as well as comments, recommendations and shortcomings, are discussed. Opsomming Hierdie is ‘n kumulatiewe verslag wat die resultate verstrek van verskeie verkennende ondersoeke wat gedoen is na die aanwending van psigometriese toetsing in die Oos-Kaap. Onlangse en voortdurende ontwikkelinge in die Suid-Afrikaanse arbeidswetgewing, en veral die implikasies van die Wet op Gelyke Indiensneming, beklemtoon weer eens die belangrikheid van die validering van enige instrumente wat gebruik word vir evaluerings- en keuringsdoeleindes van individue. Inligting is ingewin om te bepaal watter psigometriese toetse, sowel as vir watter doel, vandag in die bedryf gebruik word. Biografiese inligting oor die onderskeie organisasies, insluitende hul aantal werknemers, word verstrek. Die rol van psigometriese toetsing in die keuringsproses word bespreek. Die verskillende toetse wat deur die organisasies gebruik word, sowel as die toetsge-bruikers, word ook aangedui. Die bevindinge van ander, relevante navorsing, sowel as opmerkings, aanbevelings en tekortkominge word bespreek.

  13. Four theorems on the psychometric function.

    Directory of Open Access Journals (Sweden)

    Keith A May

    Full Text Available In a 2-alternative forced-choice (2AFC discrimination task, observers choose which of two stimuli has the higher value. The psychometric function for this task gives the probability of a correct response for a given stimulus difference, Δx. This paper proves four theorems about the psychometric function. Assuming the observer applies a transducer and adds noise, Theorem 1 derives a convenient general expression for the psychometric function. Discrimination data are often fitted with a Weibull function. Theorem 2 proves that the Weibull "slope" parameter, β, can be approximated by β(Noise x β(Transducer, where β(Noise is the β of the Weibull function that fits best to the cumulative noise distribution, and β(Transducer depends on the transducer. We derive general expressions for β(Noise and β(Transducer, from which we derive expressions for specific cases. One case that follows naturally from our general analysis is Pelli's finding that, when d' ∝ (Δx(b, β ≈ β(Noise x b. We also consider two limiting cases. Theorem 3 proves that, as sensitivity improves, 2AFC performance will usually approach that for a linear transducer, whatever the actual transducer; we show that this does not apply at signal levels where the transducer gradient is zero, which explains why it does not apply to contrast detection. Theorem 4 proves that, when the exponent of a power-function transducer approaches zero, 2AFC performance approaches that of a logarithmic transducer. We show that the power-function exponents of 0.4-0.5 fitted to suprathreshold contrast discrimination data are close enough to zero for the fitted psychometric function to be practically indistinguishable from that of a log transducer. Finally, Weibull β reflects the shape of the noise distribution, and we used our results to assess the recent claim that internal noise has higher kurtosis than a Gaussian. Our analysis of β for contrast discrimination suggests that, if internal noise is

  14. Confessions, scapegoats and flying pigs: Psychometric testing and the law

    Directory of Open Access Journals (Sweden)

    Callie Theron

    2007-01-01

    Full Text Available The use of psychometric tests in personnel selection has been regarded with an extraordinary degree of suspicion and scepticism. This is especially true when selection occurs in respect of a diverse applicant group. Concern is expressed about the seemingly uncritical embracing of specific tenets related to the use of psychometric tests in personnel selection in the absence of any systematic coherent psychometric argument to justify these beliefs. The absence of such a supporting psychometric rationale seems unfortunate in as far as it probably would inhibit the independent critical evaluation of the psychometric merits of these generally accepted beliefs. Specific beliefs related to selection fairness, measurement bias and adverse impact are critically examined.

  15. Psychometric assessment of the craving to tan questionnaire.

    Science.gov (United States)

    Ashrafioun, Lisham; Bonar, Erin E

    2015-01-01

    Researchers and clinicians suggest that excessive tanning may be a behavioral addiction. Given the significance of craving in substance use, craving may be a useful construct to assess in those who tan. We designed this study to assess the psychometric properties of an alcohol craving measure adapted to measure past-week craving to tan. Undergraduate students (n = 421) who reported past-month tanning completed a battery of questionnaires that assessed demographics, tanning-related characteristics, and psychopathology, in addition to the Craving to Tan Questionnaire (CTQ). Analyses provided support for a single factor CTQ with good internal consistency, construct validity and convergent validity. CTQ scores were significantly higher among problematic versus non-problematic and dependent versus non-dependent tanners. CTQ scores were also associated with several tanning-related characteristics, such money spent on tanning in a typical month, frequency of tanning, and frequency of tanning-related problems. Additional analyses found that past-week craving to tan was significantly associated with greater obsessive compulsive and body dysmorphic symptoms. It may be useful in clinical settings to identify those experiencing problems with tanning and in research to further clarify the conceptualization of addiction-like tanning. However, the CTQ needs further evaluation.

  16. Psychometric Evaluation of Cancer Patients

    Directory of Open Access Journals (Sweden)

    S B Bansal, Sanjay Dixit, Geeta Shivram

    2012-01-01

    Full Text Available Background: Mental health is the balanced development of the individual’s personality and the emotional attitude which will enable him or her to live harmoniously with his or her Fellow citizens. Mental health is not exclusively a matter of relation between persons It is also a matter of relation of individuals towards the community in which they live, towards the society of which the community is a part, and towards the social institutions which for a large part guide their life, determine their way of living, working, leisure, and the way they spends and earns the money, the way they sees happiness, stability and security. Objective: To asses and quantify the prevalence of psychological morbidity in cancer patients of government cancer hospital MGM Medical College Indore, M.P. Material and Methods: 100 cancer patients were chosen randomly all of them were interviewed through a questionnaire survey in ward and OPD of cancer hospital in November and December 2009. Data on demographics, and duration of diagnosis were collected. Results: Gender wise prevalence of psychological morbidity Grade II &III; were 94% in males and 86% in females. Chi square test was not significant. According to age the Grade II & III psychological morbidity were 41(46% in 15-45 years age group and 49 (54% in 46-75 years age group which is significantly higher than previous age group .Chi square test (x2 = 7.54 p value < 0.05 Grade II & III psychological morbidity were 52% in 0-6 months duration while it was 38% in more than 6 months duration Chi square test (x2= 8.04, P value < 0.05 statistically significant Conclusion: the prevalence of psychological morbidity was slightly higher in males and older age group, and also high psychological morbidity was seen in recently diagnosed cancer patients. A good counseling, stress relaxation and life style modification program is required to make such patients live their life in a positive and better way.

  17. The Psychometrics of the Mini-K.

    Science.gov (United States)

    Richardson, George B; Chen, Ching-Chen; Dai, Chia-Liang; Brubaker, Michael D; Nedelec, Joseph L

    2017-01-01

    Many published studies have employed the Mini-K to measure a single fast-slow life history dimension. However, the internal structure of the Mini-K has not been determined and it is not clear that a single higher order K-factor fits the data. It is also not clear that the Mini-K is measurement invariant across groups such as the sexes. To establish the construct validity of K as well as the broader usefulness of applying life history theory to humans, it is crucial that these psychometric issues are addressed as a part of measure validation efforts. Here we report on three studies that used latent variable modeling and data drawn from two college student samples ( ns = 361 and 300) to elucidate the psychometrics of the Mini-K. We found that (a) the Mini-K had a six dimensional first-order structure, (b) the K-factor provided a parsimonious explanation of the associations among the lower order factors at no significant cost to fit, (c) the Mini-K measured the same K-factor across the sexes, (d) K-factor means did not have the same meaning across the sexes and thus the first-order factors should be used in studies of mean sex differences, and finally, (e) the K-factor was only associated with environment and aspects of mating competition in females. Implications and future directions for life history research are discussed.

  18. Psicometria Psicometría Psychometrics

    Directory of Open Access Journals (Sweden)

    Luiz Pasquali

    2009-12-01

    Full Text Available A psicometria fundamenta-se na teoria da medida em ciências para explicar o sentido que têm as respostas dadas pelos sujeitos a uma série de tarefas e propor técnicas de medida dos processos mentais. Neste artigo são apresentados os conceitos e modelos da psicometria moderna e discutidos os parâmetros de validade e precisão dos testes.La Psicometría se fundamenta en la teoría de la medida en las ciencias buscando explicar el sentido en las respuestas de los que fueron sujetos a una serie de tareas, además de proponerse técnicas de medida de sus procesos mentales. En este artículo son presentados los conceptos y modelos de psicometría moderna, así como son discutidos los parámetros de validez y precisión de los testes.Psychometrics has foundations on the theory of measurement in Sciences and is aimed at explaining the meaning of responses provided by subjects submitted to a series of tasks, and proposing techniques for the measurement of mental processes. This article presents concepts and models of modern psychometrics and discusses the validity and reliability parameters of the applied tests.

  19. Recycling of typical supercapacitor materials.

    Science.gov (United States)

    Vermisoglou, Eleni C; Giannouri, Maria; Todorova, Nadia; Giannakopoulou, Tatiana; Lekakou, Constantina; Trapalis, Christos

    2016-04-01

    A simple, facile and low-cost method for recycling of supercapacitor materials is proposed. This process aims to recover some fundamental components of a used supercapacitor, namely the electrolyte salt tetraethyl ammonium tetrafluoroborate (TEABF4) dissolved in an aprotic organic solvent such as acetonitrile (ACN), the carbonaceous material (activated charcoal, carbon nanotubes) purified, the current collector (aluminium foil) and the separator (paper) for further utilization. The method includes mechanical shredding of the supercapacitor in order to reduce its size, and separation of aluminium foil and paper from the carbonaceous resources containing TEABF4 by sieving. The extraction of TEABF4 from the carbonaceous material was based on its solubility in water and subsequent separation through filtering and distillation. A cyclic voltammetry curve of the recycled carbonaceous material revealed supercapacitor behaviour allowing a potential reutilization. Furthermore, as BF4(-) stemming from TEABF4 can be slowly hydrolysed in an aqueous environment, thus releasing F(-) anions, which are hazardous, we went on to their gradual trapping with calcium acetate and conversion to non-hazardous CaF2.

  20. [The methodological assessment and qualitative evaluation of psychometric performance tests based on the example of modern tests that assess reading and spelling skills].

    Science.gov (United States)

    Galuschka, Katharina; Rothe, Josefine; Schulte-Körne, Gerd

    2015-09-01

    This article looks at a means of objectively evaluating the quality of psychometric tests. This approach enables users to evaluate psychometric tests based on their methodological characteristics, in order to decide which instrument should be used. Reading and spelling assessment tools serve as examples. The paper also provides a review of German psychometric tests for the assessment of reading and spelling skills. This method facilitates the identification of psychometric tests.of high methodological quality which can be used for the assessment of reading and spelling skills. Reading performance should ideally be assessed with the following instruments: ELFE 1-6, LGVT 6-12, LESEN 6-7, LESEN 8-9, or WLLP-R. The tests to be used for the evaluation of spelling skills are DERET 1-2+, DERET 3-4+, WRT 1+, WRT 2+, WRT 3+, WRT 4+ or HSP 1-10.

  1. Psychometric properties of the Nurses Work Functioning Questionnaire (NWFQ.

    Directory of Open Access Journals (Sweden)

    Fania R Gärtner

    Full Text Available OBJECTIVES: The Nurses Work Functioning Questionnaire (NWFQ is a 50-item self-report questionnaire specifically developed for nurses and allied health professionals. Its seven subscales measure impairments in the work functioning due to common mental disorders. Aim of this study is to evaluate the psychometric properties of the NWFQ, by assessing reproducibility and construct validity. METHODS: The questionnaire was administered to 314 nurses and allied health professionals with a re-test in 112 subjects. Reproducibility was assessed by the intraclass correlations coefficients (ICC and the standard error of measurement (SEM. For construct validity, correlations were calculated with a general work functioning scale, the Endicott Work Productivity Scale (EWPS (convergent validity and with a physical functioning scale (divergent validity. For discriminative validity, a Mann Whitney U test was performed testing for significant differences between subjects with mental health complaints and without. RESULTS: All subscales showed good reliability (ICC: 0.72-0.86, except for one (ICC = 0.16. Convergent validity was good in six subscales, correlations ranged from 0.38-0.62. However, in one subscale the correlation with the EWPS was too low (0.22. Divergent validity was good in all subscales based on correlations ranged from (-0.06-(-0.23. Discriminative validity was good in all subscales, based on significant differences between subjects with and without mental health complaints (p<0.001-p = 0.003. CONCLUSION: The NWFQ demonstrates good psychometric properties, for six of the seven subscales. Subscale "impaired decision making" needs improvement before further use.

  2. The assessment of safe nursing care: development and psychometric evaluation.

    Science.gov (United States)

    Rashvand, Farnoosh; Ebadi, Abbas; Vaismoradi, Mojtaba; Salsali, Mahvash; Yekaninejad, Mir Saeed; Griffiths, Pauline; Sieloff, Christina

    2017-01-01

    To develop an instrument for the assessment of safe nursing care (ASNC) within the Iranian context and psychometrically evaluate its reliability and validity. There is a need for a valid and reliable instrument to assess how nurses employ the components of safe nursing care in clinical practice in non-Western countries. This methodological study was conducted in two phases: (1) a qualitative phase of instrument development, and (2) a quantitative phase of psychometric evaluation of the assessment of safe nursing care (ASNC). The instrument's content validity was assessed by experts in the field of safe nursing care. The reliability of this instrument was examined using internal consistency reliability and intra-rater reliability analysis. Exploratory factor analysis was then conducted to establish the instrument's initial construct validity. The instrument developed was a questionnaire with 32 items. The Cronbach's alpha of the scale was 0.92, and Intra-class Correlation Coefficient for intra-rater reliability was 0.78. Exploratory factor analysis resulted in a four-factor solution: (1) evaluation of nursing skills, (2) assessing the patient's psychological needs, (3) assessing the patient's physical need, and (4) Assessing nurses' teamwork. The four factors accounted for 63.54% of the observed variance. The ASNC can be applied to a wide variety of settings because of the broad range of methods utilised to generate items and domains, its comprehensive consideration of the principles of safe care, and its initial reliability and validity. The ASNC can help nurse managers assess whether clinical nurses are prepared to apply their safe care skills in clinical practice. It can also be used by clinical nurses to assess their own and peers' practice to detect potential areas for improvement in nursing care and help nurse managers with planning appropriate quality improvement programmes. © 2016 John Wiley & Sons Ltd.

  3. Psychometric Development of the Research and Knowledge Scale

    Science.gov (United States)

    Powell, Lauren R.; Ojukwu, Elizabeth; Person, Sharina D.; Allison, Jeroan; Rosal, Milagros C.

    2017-01-01

    Background: Many research participants are misinformed about research terms, procedures, and goals; however, no validated instruments exist to assess individual’s comprehension of health-related research information. We propose research literacy as a concept that incorporates understanding about the purpose and nature of research. Objectives: We developed the Research and Knowledge Scale (RaKS) to measure research literacy in a culturally, literacy-sensitive manner. We describe its development and psychometric properties. Research Design: Qualitative methods were used to assess perspectives of research participants and researchers. Literature and informed consent reviews were conducted to develop initial items. These data were used to develop initial domains and items of the RaKS, and expert panel reviews and cognitive pretesting were done to refine the scale. We conducted psychometric analyses to evaluate the scale. Subjects: The cross-sectional survey was administered to a purposive community-based sample (n=430) using a Web-based data collection system and paper. Measures: We did classic theory testing on individual items and assessed test-retest reliability and Kuder-Richardson-20 for internal consistency. We conducted exploratory factor analysis and analysis of variance to assess differences in mean research literacy scores in sociodemographic subgroups. Results: The RaKS is comprised of 16 items, with a Kuder-Richardson-20 estimate of 0.81 and test-retest reliability 0.84. There were differences in mean scale scores by race/ethnicity, age, education, income, and health literacy (all P<0.01). Conclusions: This study provides preliminary evidence for the reliability and validity of the RaKS. This scale can be used to measure research participants’ understanding about health-related research processes and identify areas to improve informed decision-making about research participation. PMID:27579914

  4. COMPARISON OF PREDICTION METHOD OF TYPICAL WOODLAND SOIL WATER STORAGE IN LAND CONSOLIDATION DISTRICT%土地整治区典型林地土壤贮水量预测方法比较

    Institute of Scientific and Technical Information of China (English)

    李谦; 廖凯华; 杨桂山; 朱青; 郑锦森

    2014-01-01

    Forest hydrological research plays a critical role in alternative land-use practices (e.g.,restoring farmlands to forests) and management.Mathematical simulation models have often been applied to hydrological processes in forest soils.Based on long-term field experimental data,in this study,numerical simulation (NS) method was adopted to construct soil water movement model in typical woodland in land consolidation district of Jiangnan plain,and to predict soil water storage.A total of 100 days of observed soil moisture data at four depths (400 observations) were adopted to calibrate the Richards equation by using the inverse option in HYDRUS-1D.The calibration was for the assessment of the Richards equation to simulate soil moisture content in the experimental site.The result of NS model showed that the coefficient of determination (R2) between simulated and observed value of soil moisture in 10,20,40 and 60 cm depth was 0.863,0.870,0.865 and 0.665,respectively,indicating that soil moisture dynamics in woodland can be effectively predicted by this model.It is noteworthy that the 60-cm depth was found to have the lower accuracy than the other three depths.This may be attributed to the "free drainage" bottom boundary condition at this depth,which often leads to the overestimation of the simulated drainage during the relatively wet periods.Therefore,the simulated soil moisture contents at the lower depth (i.e.,60 cm) tended to be systematically underestimated.In addition to NS,the artificial neural network (ANN) was also applied in this study.Four independent variables including precipitation,daily maximum temperature,daily minimum temperature,and antecedent soil water storage were used to construct ANN model to predict the soil water storage as well.When predicting the soil water storage of 0-60 cm layer,Root Mean Square Error (RMSE) for training period and validation period in NS model was 11.09 and 8.29 mm,respectively,while that in ANN model was 4.17 and 4.08 mm

  5. Psychometric properties of the Knee injury and Osteoarthritis Outcome Score for Children (KOOS-Child) in children with knee disorders

    DEFF Research Database (Denmark)

    Ortqvist, Maria; Iversen, Maura D; Janarv, Per-Mats

    2014-01-01

    -Child was developed. This study aims to evaluate psychometric properties of the final KOOS-Child when used in children with knee disorders. METHODS: 115 children (boys/girls 51/64, 7-16 years) with knee disorders were recruited. All children (n=115) completed the KOOS-Child, the Child-Health Assessment Questionnaire...... better. CONCLUSIONS: The final KOOS-Child demonstrates good psychometric properties and supports the use of the KOOS-Child when evaluating children with knee disorders....

  6. Psychometric properties of the Exercise Self-efficacy Scale in Dutch Primary care patients with type 2 diabetes mellitus

    DEFF Research Database (Denmark)

    van der Heijden, M M P; Pouwer, F; Pop, V J M

    2014-01-01

    BACKGROUND: Excercise self-efficacy is believed to influence physical activity bahavior. PURPOSE: The purpose of this study is to assess the psychometric aspects of the Exercise Self-efficacy Scale (ESS) in a type 2 diabetes Dutch Primary care sample. METHOD: Type 2 diabetes patients (n = 322; ...-item ESS had sound psychometric properties in a large sample of primary care type 2 diabetes patients. The 13-item ESS could be useful in (intervention) research on physical activity in type 2 diabetes patients....

  7. An in-depth psychometric analysis of the Connor-Davidson Resilience Scale: calibration with Rasch-Andrich model

    OpenAIRE

    Arias González, Víctor B.; Crespo Sierra, María Teresa; Arias Martínez, Benito; Martínez-Molina, Agustín; Ponce, Fernando P.

    2015-01-01

    Background The Connor-Davidson Resilience Scale (CD-RISC) is inarguably one of the best-known instruments in the field of resilience assessment. However, the criteria for the psychometric quality of the instrument were based only on classical test theory. Method The aim of this paper has focused on the calibration of the CD-RISC with a nonclinical sample of 444 adults using the Rasch-Andrich Rating Scale Model, in order to clarify its structure and analyze its psychometric properties at the l...

  8. The Health and Functioning ICF-60: development and psychometric properties.

    Science.gov (United States)

    Tutelyan, V A; Chatterji, S; Baturin, A K; Pogozheva, A V; Kishko, O N; Akolzina, S E

    2014-01-01

    This paper describes the development and psychometric properties of the Health and Functioning ICF-60 (HF-ICF-60) measure, based on the World Health Organization (WHO) 'International Classification of Functioning, Disability and Health: ICF' (2001). The aims of the present study were to test psychometric properties of the HF-ICF-60, developed as a measure that would be responsive to change in functioning through changes in health and nutritional status, as a prospective measure to monitor health and nutritional status of populations and to explore the relationship of the HF-ICF-60 with quality of life measures such as the World Health Organization WHOQOL-BREF quality of life assessment in relation to non-communicable diseases. The HF-ICF-60 measure consists of 60 items selected from the ICF by an expert panel, which included 18 items that cover Body Functions, 21 items that cover Activities and Participation, rated on five-point scales, and 21 items that cover Environmental Factors (seven items cover Individual Environmental Factors and 14 items cover Societal Environmental Factors), rated on nine-point scales. The HF-ICF-60 measure was administered to the Russian nationally representative sample within the Russian National Population Quality of Life, Health and Nutrition Survey, in 2004 (n = 9807) and 2005 (n = 9560), as part of the two waves of the Russian Longitudinal Monitoring Survey (RLMS). The statistical analyses were carried out with the use of both classical and modern psychometric methods, such as factor analysis, and based on Item Response Theory, respectively. The HF-ICF-60 questionnaire is a new measure derived directly from the ICF and covers the ICF components as follows: Body Functions, Activities and Participation, and Environmental Factors (Individual Environmental Factors and Societal Environmental Factors). The results from the factor analyses (both Exploratory Factor Analyses and Confirmatory Factor Analyses) show good support for the

  9. Psychometric Properties of the Iranian Version of the Diabetes Numeracy Test-15

    OpenAIRE

    Yousef Moradi; Hamid Reza Baradaran; Mohammad Ebrahim Khamseh

    2016-01-01

    Background: Low health literacy (HL) of patients has obtained more attention as a risk factor for poor adherence to treatment and adverse outcomes in chronic disease′s management particular in diabetes care. Diabetes Numeracy Test-15 (DNT-15) has been developed specifically for this purpose. The objective of the current study is to evaluate psychometric properties of Iranian (Persian) version of the DNT-15. Methods: The shortened version of the DNT (15-items) was completed by 120 patients...

  10. Psychometric Evaluation of the HIV Stigma Scale in a Swedish Context

    OpenAIRE

    Lindberg, Maria H.; Lena Wettergren; Maria Wiklander; Veronica Svedhem-Johansson; Lars E. Eriksson

    2014-01-01

    Background HIV-related stigma has negative consequences for infected people's lives and is a barrier to HIV prevention. Therefore valid and reliable instruments to measure stigma are needed to enable mapping of HIV stigma. This study aimed to evaluate the psychometric properties of the HIV stigma scale in a Swedish context with regard to construct validity, data quality, and reliability. Methods The HIV stigma scale, developed by Berger, Ferrans, and Lashley (2001), was distributed to a cross...

  11. Psychometric Properties of the Persian Version of the Youth Risk Behavior Survey Questionnaire

    OpenAIRE

    A. Baheiraei; Hamzehgardeshi, Z; M.R. Mohammadi; Nedjat, S; Mohammadi, E.

    2012-01-01

    Background Adolescents may get involved in high-risk behaviors. Surveys are the primary, and sometimes the sole source of data collection for many high-risk health behaviours. We examined the reliability and validity of the psychometric properties of the self-administered Persian version of the 2009 Youth Risk Behavior Surveillance System (YRBSS) questionnaire. Methods In a methodological study in summer 2010, 100 Iranian adolescents aged 15-18 years were recruited through convenience samplin...

  12. A TYPICAL ANTIPSYCHOTIC: A REVIEW

    Directory of Open Access Journals (Sweden)

    Mukesh Ratnaparkhi

    2010-12-01

    Full Text Available Recent advances in understanding the pathophysiology of underlying psychotic disorder and subsequent development of new antipsychotic drugs to treat these diseases have altered clinicians? pharmacological approach. It has also helped researcher to produce a new generation antipsychotic agents (NGA which could show better clinical results. However methodical approach as well as in-depth research in this area has provided several potent atypical antipsychotic agents. Now days all the atypical antipsychotics agents are FDA approved and being frequently used for pharmacotherapy of schizophrenia, acute mania, bipolar mania, psychotic agitation, bipolar maintenance, and other indications. Atypical antipsychotics are associated with the numbers of clinical benefits such as higher rate of responders, efficiency in patients with refractory disease, lower risk of suicides, better functional capacity and an improved quality of life and thus, have showed their efficacy against previous modes of treatment. The present review highlights the advantages, disadvantages as well as risk factors associated with novel antipsychotic agent with a view to outline their future scope.

  13. Psychometric and cognitive validation of a social capital measurement tool in Peru and Vietnam.

    Science.gov (United States)

    De Silva, Mary J; Harpham, Trudy; Tuan, Tran; Bartolini, Rosario; Penny, Mary E; Huttly, Sharon R

    2006-02-01

    Social capital is a relatively new concept which has attracted significant attention in recent years. No consensus has yet been reached on how to measure social capital, resulting in a large number of different tools available. While psychometric validation methods such as factor analysis have been used by a few studies to assess the internal validity of some tools, these techniques rely on data already collected by the tool and are therefore not capable of eliciting what the questions are actually measuring. The Young Lives (YL) study includes quantitative measures of caregiver's social capital in four countries (Vietnam, Peru, Ethiopia, and India) using a short version of the Adapted Social Capital Assessment Tool (SASCAT). A range of different psychometric methods including factor analysis were used to evaluate the construct validity of SASCAT in Peru and Vietnam. In addition, qualitative cognitive interviews with 20 respondents from Peru and 24 respondents from Vietnam were conducted to explore what each question is actually measuring. We argue that psychometric validation techniques alone are not sufficient to adequately validate multi-faceted social capital tools for use in different cultural settings. Psychometric techniques show SASCAT to be a valid tool reflecting known constructs and displaying postulated links with other variables. However, results from the cognitive interviews present a more mixed picture with some questions being appropriately interpreted by respondents, and others displaying significant differences between what the researchers intended them to measure and what they actually do. Using evidence from a range of methods of assessing validity has enabled the modification of an existing instrument into a valid and low cost tool designed to measure social capital within larger surveys in Peru and Vietnam, with the potential for use in other developing countries following local piloting and cultural adaptation of the tool.

  14. DEVELOPMENT AND TESTING PSYCHOMETRIC PROPERTIES OF AN ICF-BASED HEALTH MEASURE : THE NEUROMUSCULAR DISEASE IMPACT PROFILE

    NARCIS (Netherlands)

    Bos, Isaac; Kuks, Jan B. M.; Wynia, Klaske

    2015-01-01

    Objectives: To develop a measure that is based on the International Classification of Functioning, Disability and Health (ICF) and reflects the prevalence and severity of disabilities related to neuromuscular disorders, and to evaluate the psychometric properties of this measure. Methods: A prelimin

  15. Development and psychometric properties of the Basic Amputee Mobility Score for use in patients with a major lower extremity amputation

    DEFF Research Database (Denmark)

    Kristensen, Morten Tange; Nielsen, Anni Østergaard; Topp, Ulla Madsen

    2017-01-01

    AIM: To develop and examine the psychometric properties, including responsiveness and interrater reliability, of a new outcome measure for the evaluation of basic mobility activities after a major lower extremity amputation - The Basic Amputee Mobility Score (BAMS). METHODS: The four following...

  16. Assessment of Fatigue in Rheumatoid Arthritis: A Psychometric Comparison of Single-item, Multiitem, and Multidimensional Measures

    NARCIS (Netherlands)

    Oude Voshaar, M.A.H.; Klooster, P.M. ten; Bode, C.; Vonkeman, H.E.; Glas, C.A.; Jansen, T.L.Th.A.; Albada-Kuipers, I. van; Riel, P.L.C.M. van; Laar, M.A. van der

    2015-01-01

    OBJECTIVE: To compare the psychometric functioning of multidimensional disease-specific, multiitem generic, and single-item measures of fatigue in patients with rheumatoid arthritis (RA). METHODS: Confirmatory factor analysis (CFA) and longitudinal item response theory (IRT) modeling were used to ev

  17. Psychometric Properties of the Child and Youth Resilience Measure (CYRM-28) among Samples of French Canadian Youth

    Science.gov (United States)

    Daigneault, Isabelle; Dion, Jacinthe; Hebert, Martine; McDuff, Pierre; Collin-Vezina, Delphine

    2013-01-01

    Objective: Explore the psychometric properties of the French Canadian version of the Child and Youth Resilience Measure (CYRM-28, Resilience Research Center, 2009; Ungar et al., 2008) in youth samples. Method: Two investigations were conducted. Participants in Study 1 were 589 youth (60% female) in grades 10-12 from 2 urban public high schools.…

  18. Construction and psychometric testing of the EMPATHIC questionnaire measuring parent satisfaction in the pediatric intensive care unit

    NARCIS (Netherlands)

    J.M. Latour (Jos); J.B. van Goudoever (Hans); H.J. Duivenvoorden (Hugo); M.J.I.J. Albers (Marcel); N.A.M. van Dam (Nicolette); E. Dullaart (Eugenie); M. van Heerde (Marc); M. de Neef (Marjorie); C.W.M. Verlaat (Carin); E.M. van Vught (Elise); J.A. Hazelzet (Jan)

    2011-01-01

    textabstractAbstract PURPOSE: To construct and test the reliability and validity of the EMpowerment of PArents in THe Intensive Care (EMPATHIC) questionnaire measuring parent satisfaction in the pediatric intensive care unit (PICU). METHODS: Structured development and psychometric testing of a paren

  19. Current psychometric and methodological issues in the measurement of overgeneral autobiographical memory.

    Science.gov (United States)

    Griffith, James W; Sumner, Jennifer A; Raes, Filip; Barnhofer, Thorsten; Debeer, Elise; Hermans, Dirk

    2012-12-01

    Autobiographical memory is a multifaceted construct that is related to psychopathology and other difficulties in functioning. Across many studies, a variety of methods have been used to study autobiographical memory. The relationship between overgeneral autobiographical memory (OGM) and psychopathology has been of particular interest, and many studies of this cognitive phenomenon rely on the Autobiographical Memory Test (AMT) to assess it. In this paper, we examine several methodological approaches to studying autobiographical memory, and focus primarily on methodological and psychometric considerations in OGM research. We pay particular attention to what is known about the reliability, validity, and methodological variations of the AMT. The AMT has adequate psychometric properties, but there is great variability in methodology across studies that use it. Methodological recommendations and suggestions for future studies are presented.

  20. Children's separation anxiety scale (CSAS): psychometric properties.

    Science.gov (United States)

    Méndez, Xavier; Espada, José P; Orgilés, Mireia; Llavona, Luis M; García-Fernández, José M

    2014-01-01

    This study describes the psychometric properties of the Children's Separation Anxiety Scale (CSAS), which assesses separation anxiety symptoms in childhood. Participants in Study 1 were 1,908 schoolchildren aged between 8 and 11. Exploratory factor analysis identified four factors: worry about separation, distress from separation, opposition to separation, and calm at separation, which explained 46.91% of the variance. In Study 2, 6,016 children aged 8-11 participated. The factor model in Study 1 was validated by confirmatory factor analysis. The internal consistency (α = 0.82) and temporal stability (r = 0.83) of the instrument were good. The convergent and discriminant validity were evaluated by means of correlations with other measures of separation anxiety, childhood anxiety, depression and anger. Sensitivity of the scale was 85% and its specificity, 95%. The results support the reliability and validity of the CSAS.

  1. [Psychometric instruments for the diagnosis of tinnitus].

    Science.gov (United States)

    Seydel, C; Zirke, N; Haupt, H; Szczepek, A; Olze, H; Mazurek, B

    2012-08-01

    Tinnitus is a very complex phenomenon with various mechanisms of origin. Multimodal and interdisciplinary treatment is the most effective form of treatment for patients with chronic tinnitus. In order to assess existing comorbidity in tinnitus patients as well as to treat the patients individually, a comprehensive and differentiated diagnosis is needed. Since standardized guidelines for the use of relevant instruments in the diagnosis of tinnitus have been lacking hitherto, we present here psychometric questionnaires which have already been used effectively in the research, diagnosis and therapy of tinnitus in the present article. The questionnaires measure the severity of tinnitus, depression and anxiety, the perceived stress, personal resources as well as the quality of life of patients.

  2. Children's separation anxiety scale (CSAS: psychometric properties.

    Directory of Open Access Journals (Sweden)

    Xavier Méndez

    Full Text Available This study describes the psychometric properties of the Children's Separation Anxiety Scale (CSAS, which assesses separation anxiety symptoms in childhood. Participants in Study 1 were 1,908 schoolchildren aged between 8 and 11. Exploratory factor analysis identified four factors: worry about separation, distress from separation, opposition to separation, and calm at separation, which explained 46.91% of the variance. In Study 2, 6,016 children aged 8-11 participated. The factor model in Study 1 was validated by confirmatory factor analysis. The internal consistency (α = 0.82 and temporal stability (r = 0.83 of the instrument were good. The convergent and discriminant validity were evaluated by means of correlations with other measures of separation anxiety, childhood anxiety, depression and anger. Sensitivity of the scale was 85% and its specificity, 95%. The results support the reliability and validity of the CSAS.

  3. The claustrophobia scale: a psychometric evaluation.

    Science.gov (United States)

    Ost, Lars-Göran

    2007-05-01

    This article presents a psychometric evaluation of the Claustrophobia Scale (CS), consisting of one subscale for measuring anxiety (20 items, 0-4) and one for avoidance (18 items, 0-2). Participants were 87 claustrophobic patients and 200 normal controls randomly selected from the community. The results show that CS has excellent internal consistency, high test-retest reliability, concurrent and discriminant validity. The patients and controls differ significantly on the total scores of anxiety and avoidance, as well as on each individual item scores. The CS was also found to be sensitive to change after cognitive behavioral treatment. Preliminary factor analyses yielded two factors for each subscale; "Being in small enclosed spaces" and "Other people present", accounting for large proportions of the variance. The CS is useful both as a state, and as an outcome self-report measure of claustrophobia.

  4. Tomographic maps of typical radio signals and their superpositions

    NARCIS (Netherlands)

    Man'ko, [No Value; Usoltsev, AS

    2002-01-01

    Following the procedure of noncommutative tomography of analytic signals, some typical radio signals are analyzed. Tomograms of rectangular pulses, delta-pulses, and Gaussian signals are presented. Properties of the noncommutative tomography method are discussed.

  5. The Psychometrics of the European Portuguese Version of the Temperament and Character Inventory-Revised.

    Science.gov (United States)

    Moreira, Paulo A S; Cloninger, Claude Robert; Rocha, Maria José; Oliveira, João Tiago; Ferreira, Noémia; Gonçalves, Daniel Maffasioli; Rózsa, Sándor

    2017-01-01

    Cloninger's psychobiological model of personality integrates contributions from behavioral genetics, neurobiology, and psychology in the description of the human personality. The temperament and character inventory (TCI) is its assessment instrument. The Brazilian Portuguese version of the TCI has shown good psychometric properties. However, Portuguese spoken in Brazil presents marked and substantial differences to that spoken in Portugal, and no study has yet described the psychometrics of the European Portuguese version. The objective of this study was thus to describe the psychometric properties of the European Portuguese adult version of the TCI (the temperament and character inventory-revised (TCI-R)). This study involved 1400 Portuguese adult participants. The factorial structure of the European Portuguese version was tested using four methods: exploratory factor analysis, orthogonal procrustes rotation analysis, confirmatory factor analysis, and exploratory structural equation modeling. The integration of data coming from these methods suggested that the Portuguese version of the TCI-R presented good structural validity (as revealed by the emergence of the temperament and character structures predicted by theory) and high levels of congruence between the American and the Portuguese versions. An improvement in the goodness of fit of the models for the Portuguese population was achieved by using exploratory structural equation modeling over confirmatory factor analysis. Although some facets registered questionable consistency, all dimensions had acceptable to good consistency (all ≥ .79). These results confirm the validity of the Portuguese TCI-R and its adequacy for use in European Portuguese samples.

  6. Typicity in Potato: Characterization of Geographic Origin

    Directory of Open Access Journals (Sweden)

    Marco Manzelli

    2010-03-01

    Full Text Available A two-year study was carried out in three regions of Italy and the crop performance and the chemical composition of tubers of three typical potato varieties evaluated. Carbon and nitrogen tuber content was determined by means of an elemental analyzer and the other mineral elements by means of a spectrometer. The same determinations were performed on soil samples taken from experimental areas. The Principal Component Analysis, applied to the results of mineral element tuber analysis, permitted the classification of all potato tuber samples according to their geographic origin. Only a partial discrimination was obtained in function of potato varieties. Some correlations between mineral content in the tubers and in the soil were also detected. Analytical and statistical methods proved to be useful in verifying the authenticity of guaranteed geographical food denominations.

  7. Iron absorption from typical Latin American diets.

    Science.gov (United States)

    Acosta, A; Amar, M; Cornbluth-Szarfarc, S C; Dillman, E; Fosil, M; Biachi, R G; Grebe, G; Hertrampf, E; Kremenchuzky, S; Layrisse, M

    1984-06-01

    The availability and daily absorption of iron was determined by the extrinsic label method in typical lower middle to lower class diets consumed in regions of Argentina, Brazil, Chile, Mexico, Peru, and Venezuela. Differences in iron absorption from meals up to 7-fold, could be attributed to the varying contents of absorption enhancers, eg, in meat, and of inhibitors in tea, vegetables, and wheat or maize bread. The total iron available in the diets from four countries did not meet the physiological requirements for normal subjects but deficient subjects fulfilled their requirements absorbing from 1.0 to 2.1 mg/day. In five diets heme iron (6 to 24% of the total) provided 34 to 73% of the iron absorbed. These data suggest that such absorption and utilization studies may be used to correlate the prevalence of iron deficiency in a population with certain diets and to guide fortification programs.

  8. Enhancing rigour in the validation of patient reported outcome measures (PROMs: bridging linguistic and psychometric testing

    Directory of Open Access Journals (Sweden)

    Roberts Gwerfyl

    2012-06-01

    Full Text Available Abstract Background A strong consensus exists for a systematic approach to linguistic validation of patient reported outcome measures (PROMs and discrete methods for assessing their psychometric properties. Despite the need for robust evidence of the appropriateness of measures, transition from linguistic to psychometric validation is poorly documented or evidenced. This paper demonstrates the importance of linking linguistic and psychometric testing through a purposeful stage which bridges the gap between translation and large-scale validation. Findings Evidence is drawn from a study to develop a Welsh language version of the Beck Depression Inventory-II (BDI-II and investigate its psychometric properties. The BDI-II was translated into Welsh then administered to Welsh-speaking university students (n = 115 and patients with depression (n = 37 concurrent with the English BDI-II, and alongside other established depression and quality of life measures. A Welsh version of the BDI-II was produced that, on administration, showed conceptual equivalence with the original measure; high internal consistency reliability (Cronbach’s alpha = 0.90; 0.96; item homogeneity; adequate correlation with the English BDI-II (r = 0.96; 0.94 and additional measures; and a two-factor structure with one overriding dimension. Nevertheless, in the student sample, the Welsh version showed a significantly lower overall mean than the English (p = 0.002; and significant differences in six mean item scores. This prompted a review and refinement of the translated measure. Conclusions Exploring potential sources of bias in translated measures represents a critical step in the translation-validation process, which until now has been largely underutilised. This paper offers important findings that inform advanced methods of cross-cultural validation of PROMs.

  9. A psychometric validation of the Short Alcohol Withdrawal Scale (SAWS)

    DEFF Research Database (Denmark)

    Elholm, Bjarne; Larsen, Klaus; Hornnes, Nete

    2011-01-01

    The study aimed to evaluate psychometrically a Danish translation of the Short Alcohol Withdrawal Scale (SAWS) in an outpatient setting in patients with Alcohol Dependence (AD) and Alcohol Withdrawal Symptoms/Syndrome (AWS).......The study aimed to evaluate psychometrically a Danish translation of the Short Alcohol Withdrawal Scale (SAWS) in an outpatient setting in patients with Alcohol Dependence (AD) and Alcohol Withdrawal Symptoms/Syndrome (AWS)....

  10. Psychometric Properties of the Brief Autism Mealtime Behaviors Inventory

    OpenAIRE

    2015-01-01

    The purpose of this study was to explore the psychometric properties of the Brief Autism Mealtime Behaviors Inventory (BAMBI). In a sample of 273 well-characterized children with ASD, we explored the factor structure of the BAMBI, determined the internal consistency of a newly derived factor structure and provide an empirically derived cut-off for the BAMBI total score. The new psychometrically identified structure consists of 4 factors: 1) Food Selectivity, 2) Disruptive Mealtime Behaviors, ...

  11. Measuring cannabis consumption: Psychometric properties of the Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU).

    Science.gov (United States)

    Cuttler, Carrie; Spradlin, Alexander

    2017-01-01

    We created the Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU) because the current lack of psychometrically sound inventories for measuring these dimensions of cannabis use has impeded research on the effects of cannabis in humans. A sample of 2,062 cannabis users completed the DFAQ-CU and was used to assess the DFAQ-CU's factor structure and reliability. To assess validity, a subsample of 645 participants completed additional measures of cannabis dependence and problems (Marijuana Smoking History Questionnaire [MSHQ], Timeline Followback [TLFB], Cannabis Abuse Screening Test [CAST], Cannabis Use Disorders Identification Test Revised [CUDIT-R], Cannabis Use Problems Identification Test [CUPIT], and Alcohol Use Disorder Identification Test [AUDIT]). A six-factor structure was revealed, with factors measuring: daily sessions, frequency, age of onset, marijuana quantity, cannabis concentrate quantity, and edibles quantity. The factors were reliable, with Cronbach's alpha coefficients ranging from .69 (daily sessions) to .95 (frequency). Results further provided evidence for the factors' convergent (MSHQ, TLFB), predictive (CAST, CUDIT-R, CUPIT), and discriminant validity (AUDIT). The DFAQ-CU is the first psychometrically sound inventory for measuring frequency, age of onset, and quantity of cannabis use. It contains pictures of marijuana to facilitate the measurement of quantity of marijuana used, as well as questions to assess the use of different forms of cannabis (e.g., concentrates, edibles), methods of administering cannabis (e.g., joints, hand pipes, vaporizers), and typical THC levels. As such, the DFAQ-CU should help facilitate research on frequency, quantity, and age of onset of cannabis use.

  12. Numerical stability of finite difference algorithms for electrochemical kinetic simulations: Matrix stability analysis of the classic explicit, fully implicit and Crank-Nicolson methods and typical problems involving mixed boundary conditions

    DEFF Research Database (Denmark)

    Bieniasz, Leslaw K.; Østerby, Ole; Britz, Dieter

    1995-01-01

    The stepwise numerical stability of the classic explicit, fully implicit and Crank-Nicolson finite difference discretizations of example diffusional initial boundary value problems from electrochemical kinetics has been investigated using the matrix method of stability analysis. Special attention...

  13. Psychometric functions for detection and discrimination with and without flankers

    Science.gov (United States)

    García-Pérez, Miguel A.; Alcalá-Quintana, Rocío; Woods, Russell L.; Peli, Eli

    2010-01-01

    Recent studies reported that flanking stimuli broaden the psychometric function and lower detection thresholds. We measured psychometric functions for detection and discrimination with and without flankers to investigate whether these effects occur throughout the contrast continuum. Our results confirm that lower detection thresholds with flankers are accompanied by broader psychometric functions. Psychometric functions for discrimination reveal that discrimination thresholds with and without flankers are similar across standard levels, and that the broadening of psychometric functions with flankers disappears as standard contrast increases, to the point that psychometric functions at high standard levels are virtually identical with or without flankers. Threshold-versus-contrast (TvC) curves with flankers only differ from TvC curves without flankers in occasional shallower dippers and lower branches on the left of the dipper, but they run virtually superimposed at high standard levels. We discuss differences between our results and other results in the literature, and how they are likely attributed to the differential vulnerability of alternative psychophysical procedures to the effects of presentation order. We show that different models of flanker facilitation can fit the data equally well, which stresses that succeeding at fitting a model does not validate it in any sense. PMID:21264745

  14. Development and psychometric testing of an instrument to measure safety climate perceptions in community pharmacy.

    Science.gov (United States)

    Newham, Rosemary; Bennie, Marion; Maxwell, David; Watson, Anne; de Wet, Carl; Bowie, Paul

    2014-12-01

    A positive and strong safety culture underpins effective learning from patient safety incidents in health care, including the community pharmacy (CP) setting. To build this culture, perceptions of safety climate must be measured with context-specific and reliable instruments. No pre-existing instruments were specifically designed or suitable for CP within Scotland. We therefore aimed to develop a psychometrically sound instrument to measure perceptions of safety climate within Scottish CPs. The first stage, development of a preliminary instrument, comprised three steps: (i) a literature review; (ii) focus group feedback; and (iii) content validation. The second stage, psychometric testing, consisted of three further steps: (iv) a pilot survey; (v) a survey of all CP staff within a single health board in NHS Scotland; and (vi) application of statistical methods, including principal components analysis and calculation of Cronbach's reliability coefficients, to derive the final instrument. The preliminary questionnaire was developed through a process of literature review and feedback. This questionnaire was completed by staff in 50 CPs from the 131 (38%) sampled. 250 completed questionnaires were suitable for analysis. Psychometric evaluation resulted in a 30-item instrument with five positively correlated safety climate factors: leadership, teamwork, safety systems, communication and working conditions. Reliability coefficients were satisfactory for the safety climate factors (α > 0.7) and overall (α = 0.93). The robust nature of the technical design and testing process has resulted in the development of an instrument with sufficient psychometric properties, which can be implemented in the community pharmacy setting in NHS Scotland. © 2014 John Wiley & Sons, Ltd.

  15. Psychometric Properties of Language Assessments for Children Aged 4–12 Years: A Systematic Review

    Science.gov (United States)

    Denman, Deborah; Speyer, Renée; Munro, Natalie; Pearce, Wendy M.; Chen, Yu-Wei; Cordier, Reinie

    2017-01-01

    Introduction: Standardized assessments are widely used by speech pathologists in clinical and research settings to evaluate the language abilities of school-aged children and inform decisions about diagnosis, eligibility for services and intervention. Given the significance of these decisions, it is important that assessments have sound psychometric properties. Objective: The aim of this systematic review was to examine the psychometric quality of currently available comprehensive language assessments for school-aged children and identify assessments with the best evidence for use. Methods: Using the PRISMA framework as a guideline, a search of five databases and a review of websites and textbooks was undertaken to identify language assessments and published material on the reliability and validity of these assessments. The methodological quality of selected studies was evaluated using the COSMIN taxonomy and checklist. Results: Fifteen assessments were evaluated. For most assessments evidence of hypothesis testing (convergent and discriminant validity) was identified; with a smaller number of assessments having some evidence of reliability and content validity. No assessments presented with evidence of structural validity, internal consistency or error measurement. Overall, all assessments were identified as having limitations with regards to evidence of psychometric quality. Conclusions: Further research is required to provide good evidence of psychometric quality for currently available language assessments. Of the assessments evaluated, the Assessment of Literacy and Language, the Clinical Evaluation of Language Fundamentals-5th Edition, the Clinical Evaluation of Language Fundamentals-Preschool: 2nd Edition and the Preschool Language Scales-5th Edition presented with most evidence and are thus recommended for use. PMID:28936189

  16. Psychometric Properties of Language Assessments for Children Aged 4–12 Years: A Systematic Review

    Directory of Open Access Journals (Sweden)

    Deborah Denman

    2017-09-01

    Full Text Available Introduction: Standardized assessments are widely used by speech pathologists in clinical and research settings to evaluate the language abilities of school-aged children and inform decisions about diagnosis, eligibility for services and intervention. Given the significance of these decisions, it is important that assessments have sound psychometric properties.Objective: The aim of this systematic review was to examine the psychometric quality of currently available comprehensive language assessments for school-aged children and identify assessments with the best evidence for use.Methods: Using the PRISMA framework as a guideline, a search of five databases and a review of websites and textbooks was undertaken to identify language assessments and published material on the reliability and validity of these assessments. The methodological quality of selected studies was evaluated using the COSMIN taxonomy and checklist.Results: Fifteen assessments were evaluated. For most assessments evidence of hypothesis testing (convergent and discriminant validity was identified; with a smaller number of assessments having some evidence of reliability and content validity. No assessments presented with evidence of structural validity, internal consistency or error measurement. Overall, all assessments were identified as having limitations with regards to evidence of psychometric quality.Conclusions: Further research is required to provide good evidence of psychometric quality for currently available language assessments. Of the assessments evaluated, the Assessment of Literacy and Language, the Clinical Evaluation of Language Fundamentals-5th Edition, the Clinical Evaluation of Language Fundamentals-Preschool: 2nd Edition and the Preschool Language Scales-5th Edition presented with most evidence and are thus recommended for use.

  17. Psychometric properties of the PTSD Checklist for DSM-5: a pilot study

    Directory of Open Access Journals (Sweden)

    Josefin Sveen

    2016-04-01

    Full Text Available Background: To date there is a lack of studies assessing the psychometric properties of the recently revised PTSD Checklist (PCL, the PTSD Checklist for DSM-5 (PCL-5. The aim of this pilot study was to examine the psychometric properties of the PCL-5 in parents of children with burns. Methods: The participating parents (N=62, mean age=38 completed self-report questionnaires, 0.8–5.6 years after their child's burn. Measures were the PCL-5, the Impact of Event Scale-Revised (IES-R, the Montgomery–Åsberg Depression Rating Scale (MADRS, and the Perceived Stress Scale (PSS. Burn severity of the child and sociodemographic variables was obtained. Results: The parents’ average PCL-5 scores were low to moderate. The internal consistency of the PCL-5 was satisfactory, with Cronbach's alpha ranging from 0.56 to 0.77 and mean inter-item correlations ranging from 0.22 to 0.73 for the four PCL-5 subscales and the PCL-5 total. The PCL-5 subscales were moderately to highly correlated with the corresponding IES-R subscales as well as MADRS and PSS (p<0.05, whereas associations with sociodemographics and burn severity were low to moderate. Conclusions: This study provides preliminary support for the use of PCL-5. The results indicate satisfactory psychometric properties of the PCL-5 as measured with internal consistency, test–retest reliability, and aspects of convergent validity.

  18. Measuring trust in nurses - Psychometric properties of the Trust in Nurses Scale in four countries.

    Science.gov (United States)

    Stolt, Minna; Charalambous, Andreas; Radwin, Laurel; Adam, Christina; Katajisto, Jouko; Lemonidou, Chryssoula; Patiraki, Elisabeth; Sjövall, Katarina; Suhonen, Riitta

    2016-12-01

    The purpose of this study was to examine psychometric properties of three translated versions of the Trust in Nurses Scale (TNS) and cancer patients' perceptions of trust in nurses in a sample of cancer patients from four European countries. A cross-sectional, cross-cultural, multi-site survey design was used. The data were collected with the Trust in Nurses Scale from patients with different types of malignancies in 17 units within five clinical sites (n = 599) between 09/2012 and 06/2014. Data were analyzed using descriptive and inferential statistics, multivariate methods and psychometrics using exploratory factor analysis, Cronbach's alpha coefficients, item analysis and Rasch analysis. The psychometric properties of the data were consistent in all countries. Within the exploratory factor analysis the principal component analysis supported the one component structure (unidimensionality) of the TNS. The internal consistency reliability was acceptable. The Rasch analysis supported the unidimensionality of the TNS cross-culturally. All items of the TNS demonstrated acceptable goodness-of-fit to the Rasch model. Cancer patients trusted nurses to a great extent although between-country differences were found. The Trust in Nurses Scale proved to be a valid and reliable tool for measuring patients' trust in nurses in oncological settings in international contexts. Copyright © 2016 Elsevier Ltd. All rights reserved.

  19. A psychometric systematic review of self-report instruments to identify anxiety in pregnancy.

    Science.gov (United States)

    Evans, Kerry; Spiby, Helen; Morrell, C Jane

    2015-09-01

    To report a systematic review of the psychometric properties of self-report instruments to identify the symptoms of anxiety in pregnancy to help clinicians and researchers select the most suitable instrument. Excessive anxiety in pregnancy is associated with adverse birth outcomes, developmental and behavioural problems in infants and postnatal depression. Despite recommendations for routine psychological assessment in pregnancy, the optimal methods to identify anxiety in pregnancy have not been confirmed. Psychometric systematic review. A systematic literature search of the multiple databases (1990-September 2014). Identification of self-report instruments to measure anxiety in pregnancy using COSMIN guidelines to assess studies reporting a psychometric evaluation of validity and reliability. Thirty-two studies were included. Studies took place in the UK, Australia, Belgium, Canada, Germany, Italy, Scandinavia, Spain and the Netherlands. Seventeen different instruments were identified. Measures of validity were reported in 19 papers and reliability in 16. The overall quality of the papers was rated as fair to excellent using the COSMIN checklist. Only one paper scored excellent in more than one category. Many instruments have been adapted for use in different populations to those for which they were designed. The State Trait Anxiety Inventory, Edinburgh Postnatal Depression Scale and the Hospital Anxiety and Depression Scale have been tested more frequently than other instruments, yet require further assessment to confirm their value for use in pregnancy. © 2015 John Wiley & Sons Ltd.

  20. Psychometric Properties of the Greek Version of the Patient Dignity Inventory in Advanced Cancer Patients.

    Science.gov (United States)

    Parpa, Efi; Kostopoulou, Sotiria; Tsilika, Eleni; Galanos, Antonis; Katsaragakis, Stylianos; Mystakidou, Kyriaki

    2017-09-01

    The patient dignity inventory (PDI) is an instrument to measure dignity distressing aspects at the end of life. The aims of the present study were the translation of the PDI in Greek language as well as to measure its psychometric aspects in a palliative care unit. A back-translation method was obtained at the Greek version. One hundred twenty advanced cancer patients completed the Greek version of the PDI, the Greek hospital anxiety and depression scale, the Greek schedule of attitudes toward hastened death (SAHD-Gr), and the Greek 12-item short form health survey. Confirmatory factor analysis failed to fit to the original instrument's structure and exploratory factor analysis was conducted revealing five factors ("Psychological Distress," "Body Image and Role Identity," "Self-Esteem," "Physical Distress and Dependency," and "Social Support"). The psychometric analysis of the PDI-Gr demonstrated a good concurrent validity, and the instrument discriminated well between subgroups of patients regarding age differences. Cronbach α were between 0.71 and 0.9 showing a good internal consistency. The Greek version of the PDI showed good psychometric properties in advanced cancer patients, supported the usefulness of the instrument assessing the sense of dignity distressing aspects of the terminally ill cancer patients. Copyright © 2017 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.

  1. Psychometrics of the scale of attitudes toward physician-pharmacist collaboration: a study with medical students.

    Science.gov (United States)

    Hojat, Mohammadreza; Spandorfer, John; Isenberg, Gerald A; Vergare, Michael J; Fassihi, Reza; Gonnella, Joseph S

    2012-01-01

    Despite the emphasis placed on interdisciplinary education and interprofessional collaboration between physicians and pharmacologists, no psychometrically sound instrument is available to measure attitudes toward collaborative relationships. This study was designed to examine psychometrics of an instrument for measuring attitudes toward physician-pharmacist collaborative relationships for administration to students in medical and pharmacy schools and to physicians and pharmacists. The Scale of Attitudes Toward Physician-Pharmacist Collaboration was completed by 210 students at Jefferson Medical College. Factor analysis and correlational methods were used to examine psychometrics of the instrument. Consistent with the conceptual framework of interprofessional collaboration, three underlying constructs, namely "responsibility and accountability;" "shared authority;" and "interdisciplinary education" emerged from the factor analysis of the instrument providing support for its construct validity. The reliability coefficient alpha for the instrument was 0.90. The instrument's criterion-related validity coefficient with scores of a validated instrument (Jefferson Scale of Attitudes Toward Physician-Nurse Collaboration) was 0.70. Findings provide support for the validity and reliability of the instrument for medical students. The instrument has the potential to be used for the evaluation of interdisciplinary education in medical and pharmacy schools, and for the evaluation of patient outcomes resulting from collaborative physician-pharmacist relationships.

  2. Psychometric properties of the Hospital Survey on Patient Safety Culture for hospital management (HSOPS_M

    Directory of Open Access Journals (Sweden)

    Pfeiffer Yvonne

    2011-07-01

    Full Text Available Abstract Background From a management perspective, it is necessary to examine how a hospital's top management assess the patient safety culture in their organisation. This study examines whether the Hospital Survey on Patient Safety Culture for hospital management (HSOPS_M has the same psychometric properties as the HSOPS for hospital employees does. Methods In 2008, a questionnaire survey including the HSOPS_M was conducted with 1,224 medical directors from German hospitals. When assessing the psychometric properties, we performed a confirmatory factor analysis (CFA. Additionally, we proved construct validity and internal consistency. Results A total of 551 medical directors returned the questionnaire. The results of the CFA suggested a satisfactory global data fit. The indices of local fit indicated a good, but not satisfactory convergent validity. Analyses of construct validity indicated that not all safety culture dimensions were readily distinguishable. However, Cronbach's alpha indicated that the dimensions had an acceptable level of reliability. Conclusion The analyses of the psychometric properties of the HSOPS_M resulted in reasonably good levels of property values. Although the set of dimensions within the HSOPS_M needs further scale refinement, the questionnaire covers a broad range of sub-dimensions and supplies important information on safety culture. The HSOPS_M, therefore, is eligible to measure safety culture from the hospital management's points of view and could be used in nationwide hospital surveys to make inter-organisational comparisons.

  3. Psychometric Properties of the Iranian Version of Modified RHAQWRA Questionnaire

    Directory of Open Access Journals (Sweden)

    Roghaieh Rahmani Bilandi

    2016-04-01

    Full Text Available Objective: This study aimed to examin the psychometric characteristics of the Persian version of Reproductive Health Assessment Questionnaire for Women of Reproductive Age (RHAQWRA.Materials and methods: This study was a cross sectional study. We selected 150 women aged 18- 45 years based on convenience sampling method who lived in the Quake-hit areas  in eastern part of Iran in 2013. Some previously recognized and established instructions were undertaken in translating and adapting the RHAQWRA questionnaire culturally. We sought help and feedback from teenagers and experts in the fields of midwifery, sociology, and epidemiology to establish the face and content validity of the questionnaire. To examine the test-retest reliability indices of all the items, we used Kappa and McNemar tests.Results: The Content Validity Index (CVI and Content Validity Ratio (CVR scores for RHAQWRA were above 0.70. Results from Kappa and McNemar tests indicated a high degree of test-retest reliability. In order to evaluate the construct validity, known- group comparison (women with and without unwanted pregnancy was used. The internal consistency reliability indexes for the subscales obtained through Cronbach’s alpha were between 0.68 and 0.87.Conclusion: The findings suggest that the Iranian version of RHAQWRA is a valid and reliable questionnaire which can be used for measuring reproductive health needs during disasters.

  4. ONE TYPICAL EXTREMUM IN ELECTRICAL PROBLEMS

    Directory of Open Access Journals (Sweden)

    V. I. Goroshko

    2014-01-01

    Full Text Available The aim of this work is to attract attention of teachers, scientific personnel, engineers and students to one peculiarity of extremum seeking in different electrical problems. This feature lies in the fact that in many parts of electrical engineering extremum seeking comes to analysis one and the same mathematical structure (T-structure, but differences lie only in many symbols (designation.In one problems this structure appear in finale, the most simple form, but in others – T-structure is “veiled”, and as a rule  we need  elementary algebraic transformation to detect it.Taking into account high frequency of this structure appearing in electrical problems, in the first part of article the authors  carried out the investigation of extremum characteristics of T-structure and show the results in easy algorithms. To determine the typical T-structure there were taken five problems-examples for extremum seeking  from different parts of electrical engineering. The first and the second examples belong to the theory of electrical circuits.In the first example the problem of maximum active load power obtaining was considered, in the second we see the solution of problem for inductive coupled circuit adjustment in order to obtain the hump current. In the third example the band active filter, built on operating amplifier, is analyzed. According to these methods, taken in the first part of article, the frequency is determined, on which amplifier provides maximum  amplification factor. The forth example deals with analysis of efficiency of transformer. According to algorithm, the optimal efficiency of transformer’s load and also equation for its maximum was determined in this article. In the fifth example the mechanical characteristics of induction motor is analyzed. It is indicated how, on the basis of algorithms article, to obtain equations for critical slip and motor moment, and also the simple development of formula Klossa.The methods of

  5. Psychometric properties of Spanish-language adult dental fear measures

    Directory of Open Access Journals (Sweden)

    Heaton Lisa J

    2008-05-01

    Full Text Available Abstract Background It would be useful to have psychometrically-sound measures of dental fear for Hispanics, who comprise the largest ethnic minority in the United States. We report on the psychometric properties of Spanish-language versions of two common adult measures of dental fear (Modified Dental Anxiety Scale, MDAS; Dental Fear Survey, DFS, as well as a measure of fear of dental injections (Needle Survey, NS. Methods Spanish versions of the measures were administered to 213 adults attending Hispanic cultural festivals, 31 students (who took the questionnaire twice, for test-retest reliability, and 100 patients at a dental clinic. We also administered the questionnaire to 136 English-speaking adults at the Hispanic festivals and 58 English-speaking students at the same college where we recruited the Spanish-speaking students, to compare the performance of the English and Spanish measures in the same populations. Results The internal reliabilities of the Spanish MDAS ranged from 0.80 to 0.85. Values for the DFS ranged from 0.92 to 0.96, and values for the NS ranged from 0.92 to 0.94. The test-retest reliabilities (intra-class correlations for the three measures were 0.69, 0.86, and 0.94 for the MDAS, DFS, and NS, respectively. The three measures showed moderate correlations with one another in all three samples, providing evidence for construct validity. Patients with higher scores on the measures were rated as being more anxious during dental procedures. Similar internal reliabilities and correlations were found in the English-version analyses. The test-retest values were also similar in the English students for the DFS and NS; however, the English test-retest value for the MDAS was better than that found in the Spanish students. Conclusion We found evidence for the internal reliability, construct validity, and criterion validity for the Spanish versions of the three measures, and evidence for the test-retest reliability of the Spanish

  6. Typicality, physiological activity and concept identification.

    NARCIS (Netherlands)

    Das-Smaal, E.A.; Swart, de J.H.

    1981-01-01

    The extent to which instances are good or poor examples of their categories (typicality) was varied in a concept identification (CI) task. Typicality was first established for the kind of artificial material traditionally used in CI tasks (experiment 1). This material was employed in a CI task

  7. CAXA制造工程师对典型零件的几种造型方法探讨%Several Modeling Methods of Typical Parts by CAXA Manufacturing Engineer

    Institute of Scientific and Technical Information of China (English)

    王武宾

    2013-01-01

    CAXA manufacturing engineer is a set of CAD / CAM in one of the domestic software, this software has powerful 3D wireframe, surface, solid modeling, efficient and easy to learn, with excellent technology of NC machining programming software, widely used in automobile, machinery and electronics industries. This thesis is about the ashtray of solid modeling and surface modeling method to illustrate the three. This paper is mainly on the parts quick modeling method by CAXA Manufacturing Engineer.%  CAXA制造工程师是集CAD/CAM于一体的国产软件,该软件具有功能强大的三维线架、曲面、实体造型,高效易学,具有卓越工艺性的数控加工编程软件,广泛应用于汽车、机械电子等行业。本论文将就烟灰缸的实体造型及上曲面的三种造型方法加以说明。本文主要讲解用CAXA制造工程师实现零件的快速造型方法。

  8. Theory of Mind and psychometric schizotypy.

    Science.gov (United States)

    Gooding, Diane Carol; Pflum, Madeline Johnson

    2011-07-30

    The extent to which Theory of Mind impairments are a trait associated with schizotypy is unclear. To date, findings have been mixed. We compared two groups of psychometrically identified schizotypes, namely, those characterized by positive schizotypy (perceptual aberrations and magical ideation; n=36) and those characterized by negative schizotypy (social anhedonia; n=30) to a low schizotypy comparison group (n=68) in terms of their Theory of Mind performance. Theory of Mind was assessed in two ways: a composite Hinting Task and the Reading the Mind in the Eyes Test. The groups were also compared in terms of their self-reported levels of referential thinking. Our results indicate that individuals characterized by positive schizotypy show Theory of Mind deficits, as measured by the Hinting Task. The three groups did not differ in terms of the Eyes Test. Referential thinking was significantly associated with the Eyes Test but not the Hinting Task. Overall these findings suggest that different aspects of schizotypy are associated differentially with Theory of Mind deficits. The results also provide further rationale for the inclusion of multiple tasks when attempting to study multifaceted constructs such as Theory of Mind. Copyright © 2011 Elsevier Ltd. All rights reserved.

  9. Psychometric properties of the Cognitive Failures Questionnaire.

    Science.gov (United States)

    Bridger, Robert S; Johnsen, Svein Åge Kjøs; Brasher, Kate

    2013-01-01

    The Cognitive Failures Questionnaire (CFQ) is used in ergonomics research to measure behavioural problems associated with attentiveness and memory in everyday life. CFQ scores have been related to constructs such as accident proneness and outcomes such as human error and psychological strain. The two-year test-retest reliability of the CFQ is reported together with the findings of factor analyses of CFQ data from 535 respondents. Evidence for the predictive and criterion validity and internal reliability of the CFQ is provided. Psychological strain was measured concurrently with CFQ on both testing occasions, two years apart. The test-retest reliability of the summated CFQ score was found to be 0.71, while for the General Health Questionnaire (GHQ-12) strain measure it was 0.32.The relative variance stability was five times greater for the CFQ than the GHQ, indicating that scores on these questionnaires are not covariates. The use of the CFQ as a measure of cognitive control capacity is also discussed. Ergonomists have long been interested in human error and the role of high work demands due to poor equipment design and excessive workload. The CFQ measures attentiveness in daily life and is shown to have excellent psychometric properties that make it suitable for use in both laboratory and field studies as a trait measure of attentiveness in daily life.

  10. The pornography craving questionnaire: psychometric properties.

    Science.gov (United States)

    Kraus, Shane; Rosenberg, Harold

    2014-04-01

    Despite the prevalence of pornography use, and recent conceptualization of problematic use as an addiction, we could find no published scale to measure craving for pornography. Therefore, we conducted three studies employing young male pornography users to develop and evaluate such a questionnaire. In Study 1, we had participants rate their agreement with 20 potential craving items after reading a control script or a script designed to induce craving to watch pornography. We dropped eight items because of low endorsement. In Study 2, we revised both the questionnaire and cue exposure stimuli and then evaluated several psychometric properties of the modified questionnaire. Item loadings from a principal components analysis, a high internal consistency reliability coefficient, and a moderate mean inter-item correlation supported interpreting the 12 revised items as a single scale. Correlations of craving scores with preoccupation with pornography, sexual history, compulsive internet use, and sensation seeking provided support for convergent validity, criterion validity, and discriminant validity, respectively. The enhanced imagery script did not impact reported craving; however, more frequent users of pornography reported higher craving than less frequent users regardless of script condition. In Study 3, craving scores demonstrated good one-week test-retest reliability and predicted the number of times participants used pornography during the following week. This questionnaire could be applied in clinical settings to plan and evaluate therapy for problematic users of pornography and as a research tool to assess the prevalence and contextual triggers of craving among different types of pornography users.

  11. Clinical and psychometric validation of the quality of life assessment system for advanced gastric cancer based on traditional Chinese medicine.

    Science.gov (United States)

    Quan, Peng; Zheng, Pei-Yong; You, Sheng-Fu; Hua, Yong-Qiang; Song, Yi; Liu, Tao; Wan, Chong-Hua; Lu, Jin-Gen

    2016-08-01

    To establish questionnaire scaling and reliability and examine the clinical and psychometric validity of the quality of life assessment based on Traditional Chinese Medicine for advanced gastric cancer (QLASTCM-Ga). The QLASTCM-Ga was developed based on programmed decision procedures with multiple nominal and focus group discussions, in-depth interview, pretesting and quantitative statistical procedures. The questionnaire was administered to 240 patients diagnosed with advanced gastric cancer before and after treatment. Structured group methods were employed to establish a general and a specifific module respectively. The psychometric properties of the scale were evaluated with respect to validity, reliability and responsiveness. The three identified scales of the QLASTCM-Ga and the total score demonstrated good psychometric properties. Test-retest reliability of the total scale and all domains ranged from 0.90 to 0.94, and internal consistency ranged from 0.86 to 0.93. Correlation and factor analysis demonstrated good construct validity. Signifificant difference in the subscales and the total score were found among groups differing in traditional Chinese medicine syndrome, supporting the clinical sensitivity of the QLASTCM-Ga. Statistically signifificant changes were found for each scale and the total score. Responsiveness was also good. The QLASTCM-Ga demonstrates good psychometric and clinical validity to assess quality of life in patients with advanced gastric cancer undergoing traditional Chinese medicine therapy. This study is an important fifirst step for future research in this area.

  12. Three Aspects of Typicality in Multiverse Cosmology

    CERN Document Server

    Azhar, Feraz

    2016-01-01

    Extracting predictions from cosmological theories that describe a multiverse, for what we are likely to observe in our domain, is crucial to establishing the validity of these theories. One way to extract such predictions is from theory-generated probability distributions that allow for selection effects---generally expressed in terms of assumptions about anthropic conditionalization and how typical we are. In this paper, I urge three lessons about typicality in multiverse settings. (i) Because it is difficult to characterize our observational situation in the multiverse, we cannot assume that we are typical (as in the 'principle of mediocrity'): nor can we ignore the issue of typicality, for it has a measurable impact on predictions for our observations. (ii) There are spectra of assumptions about both conditionalization and typicality, which lead to coincident predictions for our observations, leading to problems of confirmation in multiverse cosmology. And moreover, (iii) when one has the freedom to consid...

  13. Vista: A Software for Teaching Statistics and Psychometrics

    Directory of Open Access Journals (Sweden)

    Valero-Mora, Pedro

    2010-07-01

    Full Text Available Nowadays, teaching statistics is almost undisputedly always done using some sort of software for carrying out the computations. Indeed, the range of choices available for that purpose is wide and with a lot of variety. The present work describes the capabilities of one of the systems currently available for teaching of statistics: ViSta, the Visual Statistics System. As ViSta’s developers, we wish to point out the following features as specially appealing for using it at the classroom: a price and availability, it is free and can be downloaded on-line; b flexibility, it is an open system, extensible and adaptable for different users and needs; c simplicity, it has a simple and intuitive user interface that facilitates the management, transformation and data analysis; and d its graphical power, as it implements visualization methods that allow carrying out demonstrations of concepts and data analysis techniques. These capabilities are illustrated using a specific application to the teaching of psychometrics. The limitations and perspectives of development of the system are finally discussed.

  14. The Psychometric Properties of the Arabic Preschool Activity Card Sort

    Directory of Open Access Journals (Sweden)

    Somaya H. Malkawi

    2017-01-01

    Full Text Available Background. The Preschool Activity Card Sort (PACS is an interview-based assessment tool to measure participation of preschool children with age range from 3 to 6 years. Objective of Study. The purpose of this study was to establish the psychometric properties of the recently translated Arabic PACS (A-PACS. Methods. One hundred fifty-one Jordanian parents participated in the study representing different geographical areas. Children were almost equally distributed between males and females and into three age groups. Construct and concurrent validity were examined as well as the internal consistency of the scale and the test-retest reliability. Findings. The A-PACS was able to differentiate between the participation level of young and old children in the domains of education, community mobility, and low demand leisure of the A-PACS giving evidence to its construct validity and it significantly correlated with some aspects of the Vineland Adaptive Behavior Scale (VABS giving evidence to its concurrent validity. The A-PACS showed excellent overall internal consistency (α=.859 for all domains and good test-retest reliability (r=.976, p<.001. Conclusion. The A-PACS can be considered as a valid and reliable tool to measure participation of preschool children with normal development from Arabic cultures. Future studies should focus on the validity of the A-PACS for use with children with disabilities.

  15. The Psychometric Properties of the Arabic Preschool Activity Card Sort

    Science.gov (United States)

    Abu-Dahab, Sana M. N.; Amro, Ahmad F.; Almasri, Nihad A.

    2017-01-01

    Background The Preschool Activity Card Sort (PACS) is an interview-based assessment tool to measure participation of preschool children with age range from 3 to 6 years. Objective of Study The purpose of this study was to establish the psychometric properties of the recently translated Arabic PACS (A-PACS). Methods One hundred fifty-one Jordanian parents participated in the study representing different geographical areas. Children were almost equally distributed between males and females and into three age groups. Construct and concurrent validity were examined as well as the internal consistency of the scale and the test-retest reliability. Findings The A-PACS was able to differentiate between the participation level of young and old children in the domains of education, community mobility, and low demand leisure of the A-PACS giving evidence to its construct validity and it significantly correlated with some aspects of the Vineland Adaptive Behavior Scale (VABS) giving evidence to its concurrent validity. The A-PACS showed excellent overall internal consistency (α = .859) for all domains and good test-retest reliability (r = .976, p < .001). Conclusion The A-PACS can be considered as a valid and reliable tool to measure participation of preschool children with normal development from Arabic cultures. Future studies should focus on the validity of the A-PACS for use with children with disabilities.

  16. Psychometric development of the hypersexual behavior consequences scale.

    Science.gov (United States)

    Reid, Rory C; Garos, Sheila; Fong, Timothy

    2012-09-01

    Background and aims The past decade has seen an increased interest in understanding hypersexual behavior and its associated features. Beyond the obvious risks for sexually transmitted infections, there is a paucity of literature examining specific challenges encountered by hypersexual individuals. This study investigated and developed a new scale, the Hypersexual Behavior Consequences Scale (HBCS), to assess the various consequences reported among hypersexual patients. Methods Participants were drawn from a sample of patients recruited in a DSM-5 Field Trial for Hypersexual Disorder (HD). Participants completed the Hypersexual Behavior Inventory, a structured diagnostic interview to assess for psychopathology and HD, and self-report measures of personality, life satisfaction, and the initial item pool for the HBCS. Results Factor analysis reduced the HBCS items to a single factor solution which showed high internal consistency and stability over time. Higher HBCS scores were positively correlated with higher levels of emotional dysregulation, impulsivity, and stress proneness and lower levels of satisfaction with life and happiness. HBCS scores among the hypersexual patients were significantly higher than non-hypersexual patients. Conclusions The HBCS possesses good psychometric properties and appears to capture various consequences associated with the DSM-5 proposed criteria for HD. The HBCS can be used to aid clinicians and researchers in identifying consequences associated with hypersexual behavior. The HBCS may also prove a useful tool to guide treatment interventions aimed at reducing the negative impact of hypersexuality in patient populations.

  17. The Rorschach Comprehensive System (CS) Psychometric Validity of Individual Variables.

    Science.gov (United States)

    Tibon Czopp, Shira; Zeligman, Ruth

    2016-01-01

    Since the publication of the Rorschach Inkblot Method (Rorschach, 1921/1942 ), theorists, researchers, and practitioners have been debating the nature of the task, its conceptual foundation, and most important its psychometric properties. The validity of the Rorschach Comprehensive System (CS; Exner, 1974 , 2003; Exner & Weiner, 1995 ) has been supported by several meta-analyses that used different types of nontest external criterion for validating individual variables. In a recent meta-analysis, Mihura, Meyer, Dumitrascu, and Bombel ( 2013 ) found coefficients ranging from modest to excellent for most of the selected CS variables, with 13 of them reported as showing "little to no support." This article focuses on these variables. Although endorsing Mihura et al.'s mainly validating findings, we also suggest that the evidence presented for the little or no validity of these 13 variables is not quite compelling enough to warrant changing their definition or coding, or removing them from the system. We point to some issues concerning the description and interpretation of these variables and the appropriateness of the external criteria used for exploring their validity, and suggest considering these issues in further CS research. Implications of Mihura et al.'s meta-analysis for clinical and forensic practice are discussed.

  18. No apparent influence of psychometrically-defined schizotypy on orientation-dependent contextual modulation of visual contrast detection

    Directory of Open Access Journals (Sweden)

    Damien J. Mannion

    2017-01-01

    Full Text Available We investigated the relationship between psychometrically-defined schizotypy and the ability to detect a visual target pattern. Target detection is typically impaired by a surrounding pattern (context with an orientation that is parallel to the target, relative to a surrounding pattern with an orientation that is orthogonal to the target (orientation-dependent contextual modulation. Based on reports that this effect is reduced in those with schizophrenia, we hypothesised that there would be a negative relationship between the relative score on psychometrically-defined schizotypy and the relative effect of orientation-dependent contextual modulation. We measured visual contrast detection thresholds and scores on the Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE from a non-clinical sample (N = 100. Contrary to our hypothesis, we find an absence of a monotonic relationship between the relative magnitude of orientation-dependent contextual modulation of visual contrast detection and the relative score on any of the subscales of the O-LIFE. The apparent difference of this result with previous reports on those with schizophrenia suggests that orientation-dependent contextual modulation may be an informative condition in which schizophrenia and psychometrically-defined schizotypy are dissociated. However, further research is also required to clarify the strength of orientation-dependent contextual modulation in those with schizophrenia.

  19. Psychometric Properties and Normative Data for the Preschool Strengths and Difficulties Questionnaire in Two-Year-Old Children.

    Science.gov (United States)

    D'Souza, Stephanie; Waldie, Karen E; Peterson, Elizabeth R; Underwood, Lisa; Morton, Susan M B

    2017-02-01

    The Strengths and Difficulties Questionnaire (SDQ) is a popular standardised instrument typically used for screening psychopathology in children and adolescents. However, peer reviewed studies evaluating the psychometric properties of the parent-rated preschool SDQ are lacking. The current study involved mothers of 5481 2 year olds (52 % male) from the Growing Up in New Zealand cohort, and investigated the psychometric properties of the preschool SDQ within this cohort. Confirmatory factor analysis was used to evaluate the SDQ's factor structure and test for measurement invariance of the factor model. Cronbach's alpha was used to measure the internal consistency of the subscales and total difficulties scale. We found support for a modified five-factor model, in which the prosocial factor was extended into a positive construal factor by allowing cross-loadings of reverse-scored items. Full measurement invariance was found across gender and socioeconomic status, and partial invariance was found across mother's ethnicity. Cronbach's alpha was satisfactory for all subscales (α range = 0.71-0.84), except peer problems (α = 0.54). Normative scores and bandings for normal, borderline and abnormal ranges are described for each subscale. Analyses revealed group differences in scores for child's gender, mother's ethnicity and socioeconomic status. Overall, satisfactory psychometric properties were found for the preschool SDQ in 2 year olds, indicating that that the questionnaire can be used in very young children.

  20. Psychometric evaluation of ADAS-Cog and NTB for measuring drug response.

    Science.gov (United States)

    Karin, A; Hannesdottir, K; Jaeger, J; Annas, P; Segerdahl, M; Karlsson, P; Sjögren, N; von Rosen, T; Miller, F

    2014-02-01

    To conduct a psychometric analysis to determine the adequacy of instruments that measure cognition in Alzheimer's disease trials. Both the Alzheimer's Disease Assessment Scale - Cognition (ADAS-Cog) and the Neuropsychological Test Battery (NTB) are validated outcome measures for clinical trials in Alzheimer's disease and are approved also for regulatory purposes. However, it is not clear how comparable they are in measuring cognitive function. In fact, many recent trials in Alzheimer's disease patients have failed and it has been questioned if ADAS-Cog still is a sensitive measure. The present paper examines the psychometric properties of ADAS-Cog and NTB, based on a post hoc analysis of data from a clinical trial (NCT01024660), which was conducted by AstraZeneca, in mild-to-moderate Alzheimer's disease (AD) patients, with a Mini Mental State Examination (MMSE) Total score 16-24. Acceptability, reliability, different types of validity and ability to detect change were assessed using relevant statistical methods. Total scores of both tests, as well as separate domains of both tests, including the Wechsler Memory Scale (WMS), Rey Auditory Verbal Learning Test (RAVLT) and Delis-Kaplan Executive Function System (D-KEFS) Verbal Fluency Condition, were analyzed. Overall, NTB performed well, with acceptable reliability and ability to detect change, while ADAS-Cog had insufficient psychometric properties, including ceiling effects in 8 out of a total of 11 ADAS-Cog items in mild AD patients, as well as low test-retest reliability in some of the items. Based on a direct comparison on the same patient sample, we see advantages of the NTB compared with the ADAS-Cog for the evaluation of cognitive function in the population of mild-to-moderate AD patients. The results suggest that not all of ADAS-Cog items are relevant for both mild and moderate AD population. This validation study demonstrates satisfactory psychometric properties of the NTB, while ADAS-Cog was found to be

  1. EL MÉTODO DE JERARQUÍA DE ATRIBUTOS: UNA OPCIÓN PARA VINCULAR TEORÍAS COGNITIVAS Y DEL APRENDIZAJE CON PRÁCTICAS PSICOMÉTRICAS Y DE ENSEÑANZA (ATTRIBUTE HIERARCHY METHOD: AN ALTERNATIVE TO LINK COGNITIVE AND LEARNING THEORIES WITH PSYCHOMETRIC AND TEACHING PRACTICES

    Directory of Open Access Journals (Sweden)

    Artavia Medrano Álvaro

    2011-04-01

    Full Text Available Resumen:Dado que en la mayoría de las pruebas en el ámbito educativo las personas se involucran en algún tipo de resolución cognitiva de problemas, los enfoques psicométricos tradicionales tienen el inconveniente de no aportar información acerca de las estructuras de conocimiento ni de las habilidades subyacentes a la resolución de los ítems de una prueba. Por ello, se necesita de enfoques de evaluación que se orienten a aspectos cognitivos y que permitan diseñar pruebas e interpretar resultados en términos de los procesos y las habilidades propias de la resolución de problemas. En este artículo se presenta una de las opciones más recientes de la evaluación cognitiva diagnóstica: el Método de Jerarquía de Atributos (MJA, que puede ser visto como un modelo cognitivo de desempeño que resume un conjunto de conocimientos y habilidades interconectadas que las personas utilizan para responder correctamente los ítems de una prueba en un dominio específico. Este enfoque posibilita contar con métodos de evaluación orientados al mejoramiento del aprendizaje y proponer diversas técnicas de enseñanza basadas en la psicología del desempeño en la resolución de tareas.Abstract: Since most of educational tests require examinees to engage in some form of cognitive problem solving, traditional psychometric approaches have the disadvantage of not provide information about knowledge structures nor underlying skills to solve test items. Therefore, cognitive assessment approaches are required, which lead to design tests and to interpret results in terms of process and skills related to problem solving. This article presents one of the most recent options of cognitive diagnostic assessment: the Attribute Hierarchy Method (AHM, which can be viewed as a cognitive model of task performance; it summarizes the set of interconnected knowledge and skills that students use to respond correctly to test items within a specific domain. This approach

  2. Some typical solid propellant rocket motors

    NARCIS (Netherlands)

    Zandbergen, B.T.C.

    2013-01-01

    Typical Solid Propellant Rocket Motors (shortly referred to as Solid Rocket Motors; SRM's) are described with the purpose to form a database, which allows for comparative analysis and applications in practical SRM engineering.

  3. Some typical solid propellant rocket motors

    NARCIS (Netherlands)

    Zandbergen, B.T.C.

    2013-01-01

    Typical Solid Propellant Rocket Motors (shortly referred to as Solid Rocket Motors; SRM's) are described with the purpose to form a database, which allows for comparative analysis and applications in practical SRM engineering.

  4. Psychometric properties of the Oswestry Disability Index.

    Science.gov (United States)

    Saltychev, Mikhail; Mattie, Ryan; McCormick, Zachary; Bärlund, Esa; Laimi, Katri

    2017-09-01

    The aim of this study was to investigate the psychometric properties of the Oswestry Disability Index (ODI) in a large cross-sectional cohort of individuals with chronic low back pain by defining its internal consistency, construct structure and validity, and its ability to differentiate between different degrees of functional limitation. A total of 837 consecutive outpatient patients with low back pain were studied. The internal consistency of ODI was assessed by Cronbach's α, construct structure by exploratory factor analysis, construct validity by confirmatory factor analysis, and discrimination was determined by item response theory analysis. The ODI showed good internal consistency (α=0.85). Explanatory factor analysis showed that ODI is a unidimensional test measuring functional level and nothing else. The confirmatory factor analysis showed that the standardized regression weights of all ODI items were relatively high, varying from 0.5 to 0.7. The item response theory analysis suggested that eight out of 10 ODI items have a close to perfect ability to measure functional limitations in accordance with the actual severity of disability experienced by the respondents. Discrimination of all the items was high to perfect (1.08-2.01). The test characteristic and test information curves showed that the discriminative ability of the ODI is superior at higher levels of disability. The present data showed that the ODI is an internally consistent, unidimensional scale with overall excellent construct validity and ability to discriminate the severity of functional disability. The analysis suggests that the ODI may better distinguish between the relative degrees of function at above-average disability levels.

  5. Prediction and typicality in multiverse cosmology

    Science.gov (United States)

    Azhar, Feraz

    2014-02-01

    In the absence of a fundamental theory that precisely predicts values for observable parameters, anthropic reasoning attempts to constrain probability distributions over those parameters in order to facilitate the extraction of testable predictions. The utility of this approach has been vigorously debated of late, particularly in light of theories that claim we live in a multiverse, where parameters may take differing values in regions lying outside our observable horizon. Within this cosmological framework, we investigate the efficacy of top-down anthropic reasoning based on the weak anthropic principle. We argue contrary to recent claims that it is not clear one can either dispense with notions of typicality altogether or presume typicality, in comparing resulting probability distributions with observations. We show in a concrete, top-down setting related to dark matter, that assumptions about typicality can dramatically affect predictions, thereby providing a guide to how errors in reasoning regarding typicality translate to errors in the assessment of predictive power. We conjecture that this dependence on typicality is an integral feature of anthropic reasoning in broader cosmological contexts, and argue in favour of the explicit inclusion of measures of typicality in schemes invoking anthropic reasoning, with a view to extracting predictions from multiverse scenarios.

  6. Does composition medium affect the psychometric properties of scores on an exercise designed to assess written medical communication skills?

    Science.gov (United States)

    Boulet, John R; McKinley, Danette W; Rebbecchi, Thomas; Whelan, Gerald P

    2007-05-01

    The ECFMG Clinical Skills Assessment (CSA) was developed to evaluate whether graduates of international medical schools are ready to enter graduate training programs in the United States. The performance-based patient note exercise is specifically used to assess an examinee's ability to summarize, synthesize and interpret the data collected in a patient interview. The purpose of this study was to investigate whether choice of composition method (typing or writing) affected the psychometric properties of the scores. Using data for a 1-year period, the validity and reliability of typed and written notes was contrasted. Although the characteristics of individuals who chose whether or not to type were different, the statistical analyses indicated that, controlling for examinee ability, physician examiner ratings of the written summaries were not influenced by composition method. The results of this study suggest that the psychometric properties of the patient note scores are invariant with respect to composition method.

  7. The Body Appreciation Scale-2: item refinement and psychometric evaluation.

    Science.gov (United States)

    Tylka, Tracy L; Wood-Barcalow, Nichole L

    2015-01-01

    Considered a positive body image measure, the 13-item Body Appreciation Scale (BAS; Avalos, Tylka, & Wood-Barcalow, 2005) assesses individuals' acceptance of, favorable opinions toward, and respect for their bodies. While the BAS has accrued psychometric support, we improved it by rewording certain BAS items (to eliminate sex-specific versions and body dissatisfaction-based language) and developing additional items based on positive body image research. In three studies, we examined the reworded, newly developed, and retained items to determine their psychometric properties among college and online community (Amazon Mechanical Turk) samples of 820 women and 767 men. After exploratory factor analysis, we retained 10 items (five original BAS items). Confirmatory factor analysis upheld the BAS-2's unidimensionality and invariance across sex and sample type. Its internal consistency, test-retest reliability, and construct (convergent, incremental, and discriminant) validity were supported. The BAS-2 is a psychometrically sound positive body image measure applicable for research and clinical settings.

  8. Brief Report: The Preliminary Psychometric Properties of the Social Communication Checklist.

    Science.gov (United States)

    Wainer, Allison L; Berger, Natalie I; Ingersoll, Brooke R

    2017-04-01

    Despite the expansion of early intervention approaches for young children with ASD, investigators have struggled to identify measures capable of assessing social communication change in response to these interventions. Addressing recent calls for efficient, sensitive, and reliable social communication measures, the current paper outlines the refinement and validation of the Social Communication Checklist (SCC). We discuss two small studies exploring the psychometric properties of the SCC and the SCC-R (revised Social Communication Checklist), including sensitivity to change, inter-rater reliability, and test-retest reliability, in two samples of children with ASD and one sample of typically-developing children. Results indicate this measure is reliable, sensitive to change after a brief social communication intervention, and strongly related to well-established measures of social communicative functioning.

  9. Measuring theory of mind in children. Psychometric properties of the ToM Storybooks.

    Science.gov (United States)

    Blijd-Hoogewys, E M A; van Geert, P L C; Serra, M; Minderaa, R B

    2008-11-01

    Although research on Theory-of-Mind (ToM) is often based on single task measurements, more comprehensive instruments result in a better understanding of ToM development. The ToM Storybooks is a new instrument measuring basic ToM-functioning and associated aspects. There are 34 tasks, tapping various emotions, beliefs, desires and mental-physical distinctions. Four studies on the validity and reliability of the test are presented, in typically developing children (n = 324, 3-12 years) and children with PDD-NOS (n = 30). The ToM Storybooks have good psychometric qualities. A component analysis reveals five components corresponding with the underlying theoretical constructs. The internal consistency, test-retest reliability, inter-rater reliability, construct validity and convergent validity are good. The ToM Storybooks can be used in research as well as in clinical settings.

  10. Development and Psychometric Evaluation of the Military Suicide Attitudes Questionnaire (MSAQ)

    Science.gov (United States)

    2015-05-12

    Development and Psychometric Evaluation of the Military Suicide Attitudes Questionnaire (MSAQ) by Marcus VanSickle...MEDICAL AND CLINICAL PSYCHOLOGY GRADUATE PROGRAM Title of Dissertation: "Development and Psychometric Evaluation of the Military Suicide Attitudes...hereby certifies that the use of any copyrighted material in the thesis manuscript entitled: "Development and Psychometric Evaluation of the Military

  11. What is typical is good: the influence of face typicality on perceived trustworthiness.

    Science.gov (United States)

    Sofer, Carmel; Dotsch, Ron; Wigboldus, Daniel H J; Todorov, Alexander

    2015-01-01

    The role of face typicality in face recognition is well established, but it is unclear whether face typicality is important for face evaluation. Prior studies have focused mainly on typicality's influence on attractiveness, although recent studies have cast doubt on its importance for attractiveness judgments. Here, we argue that face typicality is an important factor for social perception because it affects trustworthiness judgments, which approximate the basic evaluation of faces. This effect has been overlooked because trustworthiness and attractiveness judgments have a high level of shared variance for most face samples. We show that for a continuum of faces that vary on a typicality-attractiveness dimension, trustworthiness judgments peak around the typical face. In contrast, perceived attractiveness increases monotonically past the typical face, as faces become more like the most attractive face. These findings suggest that face typicality is an important determinant of face evaluation.

  12. Psychometric properties of the Spanish Burnout Inventory among staff nurses.

    Science.gov (United States)

    Gil-Monte, P R; Manzano-García, G

    2015-12-01

    The burnout syndrome contributes to the deterioration in the quality of personal life as well as lower quality practice in healthcare personnel. Researchers have been concerned about the psychometric limitations of some previous questionnaires designed to evaluate burnout. The Spanish Burnout Inventory was developed to address the problems associated with other instruments, but it has not yet been validated in staff nurses. This study provides evidence that the Spanish Burnout Inventory has adequate psychometric properties to estimate burnout in staff nurses. The Spanish Burnout Inventory offers a theoretical proposal to explain the different components of burnout. The Spanish Burnout Inventory provides researchers and practitioners with an expanded conceptualization of the burnout syndrome, which can facilitate the diagnosis and treatment of nursing professionals. Researchers have been concerned about the psychometric limitations of the some previous questionnaires designed to evaluate burnout. To address these problems associated with previous instruments, the Spanish Burnout Inventory (SBI) was developed. The instrument has not yet been validated in staff nurses. The purpose of this paper was to evaluate the psychometric properties of the SBI. The sample consisted of 720 staff nurses from two Spanish general hospitals. The instrument is composed of 20 items distributed in four dimensions: Enthusiasm towards the job (five items), Psychological exhaustion (four items), Indolence (six items) and Guilt (five items). Data were subjected to confirmatory factor analysis. To assess the factorial validity of the SBI, four alternative models were tested. Results show that the four-factor model of the SBI has adequate psychometric properties for the study of burnout in staff nurses. This model fitted the data better than the alternative models. The study provides evidence of the adequate psychometric properties of a measure to evaluate burnout in nursing professionals. The

  13. What is typical is good: The influence of face typicality on perceived trustworthiness

    NARCIS (Netherlands)

    Sofer, C.; Dotsch, R.; Wigboldus, D.H.J.; Todorov, A.T.

    2015-01-01

    The role of face typicality in face recognition is well established, but it is unclear whether face typicality is important for face evaluation. Prior studies have focused mainly on typicality's influence on attractiveness, although recent studies have cast doubt on its importance for attractiveness

  14. A nurses' alarm fatigue questionnaire: development and psychometric properties.

    Science.gov (United States)

    Torabizadeh, Camellia; Yousefinya, Amirhossein; Zand, Farid; Rakhshan, Mahnaz; Fararooei, Mohammad

    2016-11-15

    Alarm fatigue can adversely affect nurses' efficiency and concentration on their tasks, which is a threat to patients' safety. The purpose of the present study was to develop and test the psychometric accuracy of an alarm fatigue questionnaire for nurses. This study was conducted in two stages: in stage one, in order to establish the different aspects of the concept of alarm fatigue, the researchers reviewed the available literature-articles and books-on alarm fatigue, and then consulted several experts in a meeting to define alarm fatigue and develop statements for the questionnaire. In stage two, after the final draft had been approved, the validity of the instrument was measured using the two methods of face validity (the quantitative and qualitative approaches) and content validity (the qualitative and quantitative approaches). Test-retest, Cronbach's alpha, and Principal Component Analysis were used for item reduction and reliability analysis. Based on the results of stage one, the researchers extracted 30 statements based on a 5-point Likert scale. In stage two, after the face and content validity of the questionnaire had been established, 19 statements were left in the instrument. Based on factor loadings of the items and "alpha if item deleted" and after the second round of consultation with the expert panel, six items were removed from the scale. The test of the reliability of nurses' alarm fatigue questionnaire based on the internal homogeneity and retest methods yielded the following results: test-retest correlation coefficient = 0.99; Guttman split-half correlation coefficient = 0.79; Cronbach's alpha = 0.91. Regarding the importance of recognizing alarm fatigue in nurses, there is need for an instrument to measure the phenomenon. The results of the study show that the developed questionnaire is valid and reliable enough for measuring alarm fatigue in nurses.

  15. Psychometric properties of the Greek Diabetes Treatment Satisfaction Questionnaire

    Directory of Open Access Journals (Sweden)

    Kontodimopoulos Nick

    2012-02-01

    Full Text Available Abstract Objectives Measurement of treatment satisfaction in diabetes is important as it has been shown to be associated with positive outcomes, reduced disease cost and better health. The aim of this study was to assess the construct validity and internal consistency reliability of the Greek version of the Diabetes Treatment Satisfaction Questionnaire (DTSQ. Methods A sample of type II diabetes patients (N = 172 completed the DTSQ status version, the SF-36 health survey and also provided data regarding treatment method, clinical and socio-demographic status. Instrument structure, reliability (Cronbach's a and construct validity (convergent, discriminative, concurrent and known-groups were assessed. Results The DTSQ measurement properties were confirmed in the Greek version with confirmatory factor analysis (CFA. Scale reliability was high (Cronbach's a = 0.92. Item-scale internal consistency and discriminant validity were also good, exceeding the designated success criteria. Significant correlations were observed between DTSQ items/overall score and SF-36 scales/component scores, which were hypothesized to measure similar dimensions. Known groups' comparisons yielded consistent support of the construct validity of the instrument. Conclusions The instrument was well-accepted by the patients and its psychometric properties were similar to those reported in validation studies of other language versions. Further research, incorporating a longitudinal study design, is required for examining test-retest reliability and responsiveness of the instrument, which were not addressed in this study. Overall, the present results confirm that the DTSQ status version is a reasonable choice for measuring diabetes treatment satisfaction in Greece.

  16. Prediction and typicality in multiverse cosmology

    CERN Document Server

    Azhar, Feraz

    2015-01-01

    In the absence of a fundamental theory that precisely predicts values for observable parameters, anthropic reasoning attempts to constrain probability distributions over those parameters in order to facilitate the extraction of testable predictions. The utility of this approach has been vigorously debated of late, particularly in light of theories that claim we live in a multiverse, where parameters may take differing values in regions lying outside our observable horizon. Within this cosmological framework, we investigate the efficacy of top-down anthropic reasoning based on the weak anthropic principle. We argue contrary to recent claims that it is not clear one can either dispense with notions of typicality altogether or presume typicality, in comparing resulting probability distributions with observations. We show in a concrete, top-down setting related to dark matter, that assumptions about typicality can dramatically affect predictions, thereby providing a guide to how errors in reasoning regarding typi...

  17. Development and psychometric evaluation of the FACE-Q satisfaction with appearance scale: a new patient-reported outcome instrument for facial aesthetics patients.

    Science.gov (United States)

    Pusic, Andrea L; Klassen, Anne F; Scott, Amie M; Cano, Stefan J

    2013-04-01

    Satisfaction with appearance and improved quality of life are key outcomes for patients undergoing facial aesthetic procedures. The FACE-Q is a new patient-reported outcome (PRO) instrument encompassing a suite of independently functioning scales designed to measure a range of important outcomes for facial aesthetics patients. FACE-Q scales were developed with strict adherence to international guidelines for PRO instrument development. This article describes the development and psychometric evaluation of the core FACE-Q scale, the Satisfaction with Facial Appearance scale. Both modern and traditional psychometric methods were used to confirm that this new 10-item scale is a reliable, valid, and responsive measure.

  18. Realizing the Typical Gas Burning System' s Control by PLC

    Institute of Scientific and Technical Information of China (English)

    Zhang,Hengcheng; Wang,Yanbin

    2003-01-01

    This Paper introduced the typical gas burning sys-tem's cemposing, analysesed and discussed its operation theoryand two different leak control methods in detail, investigatedconcretely the software and hardware design project of realizingcontrol and performed communication with upper computer bySiemens' s S7-300 Programmable Logical Controller.

  19. Temperament Dimensions in Stuttering and Typically Developing Children

    Science.gov (United States)

    Eggers, Kurt; De Nil, Luc F.; Van den Bergh, Bea R. H.

    2010-01-01

    Purpose: The purpose of this study was to determine whether children who stutter (CWS) and typically developing children (TDC) differ from each other on composite temperament factors or on individual temperament scales. Methods: Participants consisted of 116 age and gender-matched CWS and TDC (3.04-8.11). Temperament was assessed with a Dutch…

  20. Psychometric evaluation of the Swedish version of the Person-Centered Care Assessment Tool (P-CAT)

    OpenAIRE

    Sjögren, Karin; Lindkvist, Marie; Sandman, Per-Olof; Zingmark, Karin; Edvardsson, David

    2012-01-01

    Background: Person-centered care is a multidimensional concept describing good care, especially within aged care and care for people with dementia. Research studies evaluating person-centered care interventions seldom use direct measurement of levels of person-centeredness. Existing scales that measure person-centeredness need further testing. This study evaluated the psychometric properties of the Swedish version of the Person-Centered Care Assessment Tool (P-CAT). Methods: A cross-sectional...

  1. Psychometrics of the chronic liver disease questionnaire for Southern Chinese patients with chronic hepatitis B virus infection

    OpenAIRE

    Lam, Elegance Ting Pui; Lam, Cindy Lo Kuen; Lai, Ching Lung; Yuen, Man Fung; Fong, Daniel Yee Tak

    2009-01-01

    Aim: To test the psychometric properties of a Chinese [(Hong Kong) HK] translation of the chronic liver disease questionnaire (CLDQ). Methods: A Chinese (HK) translation of the CLDQ was developed by iterative translation and cognitive debriefing. It was then administered to 72 uncomplicated and 78 complicated chronic hepatitis B (CHB) patients in Hong Kong together with a structured questionnaire on service utilization, and the Chinese (HK) SF-36 Health Survey Version 2 (SF-36v2). Results: Sc...

  2. Psychometric Functions for Shortened Administrations of a Speech Recognition Approach Using Tri-Word Presentations and Phonemic Scoring

    Science.gov (United States)

    Gelfand, Stanley A.; Gelfand, Jessica T.

    2012-01-01

    Method: Complete psychometric functions for phoneme and word recognition scores at 8 signal-to-noise ratios from -15 dB to 20 dB were generated for the first 10, 20, and 25, as well as all 50, three-word presentations of the Tri-Word or Computer Assisted Speech Recognition Assessment (CASRA) Test (Gelfand, 1998) based on the results of 12…

  3. Psychometric Properties of a Translated Korean Adult Attachment Measure

    Science.gov (United States)

    Kim, Seong-Hyeon; Sherry, Alissa R.; Lee, Young-Sun; Kim, Chang-Dai

    2011-01-01

    In this study, psychometric properties of a Korean-adapted version of the Experiences in Close Relationships--Revised scale were investigated using confirmatory factor analysis (CFA) in conjunction with item response theory. In CFA, neither the supposed two-factor model of Anxiety and Avoidance nor two single-factor models for each factor showed a…

  4. Development and Psychometric Properties of the Homophobic Bullying Scale

    Science.gov (United States)

    Prati, Gabriele

    2012-01-01

    The study aimed to develop the Homophobic Bullying Scale and to investigate its psychometric properties. The items of the Homophobic Bullying Scale were created to measure high school students' bullying behaviors motivated by homophobia, including verbal bullying, relational bullying, physical bullying, property bullying, sexual harassment, and…

  5. Counselor Competence, Performance Assessment, and Program Evaluation: Using Psychometric Instruments

    Science.gov (United States)

    Tate, Kevin A.; Bloom, Margaret L.; Tassara, Marcel H.; Caperton, William

    2014-01-01

    Psychometric instruments have been underutilized by counselor educators in performance assessment and program evaluation efforts. As such, we conducted a review of the literature that revealed 41 instruments fit for such efforts. We described and critiqued these instruments along four dimensions--"Target Domain," "Format,"…

  6. An international psychometric testing of the Care Dependency Scale

    NARCIS (Netherlands)

    Dijkstra, A.; Brown, L.; Havens, B.; Romeren, T.I.; Zanotti, R.; Dassen, T.; van den Heuvel, W.

    2000-01-01

    In an international study, psychometric properties of the Care Dependency Scale (CDS) were examined by analysing data gathered in Dutch, Canadian, Italian and Norwegian nursing homes. For that purpose, from these countries a convenience sample was developed consisting of 525 patients with dementia.

  7. Psychometric Testing of the Gordon Facial Muscle Weakness Assessment Tool

    Science.gov (United States)

    Gordon, Shirley C.; Blum, Cynthia Ann; Parcells, Dax Andrew

    2010-01-01

    School nurses may be the first health professionals to assess the onset of facial paralysis/muscle weakness in school-age children. The purpose of this study was to test the psychometric properties of the Gordon Facial Muscle Weakness Assessment Tool (GFMWT) developed by Gordon. Data were collected in two phases. In Phase 1, 4 content experts…

  8. Psychometric Properties of the Revised Teachers' Attitude toward Inclusion Scale

    Science.gov (United States)

    Monsen, Jeremy J.; Ewing, Donna L.; Boyle, James

    2015-01-01

    This paper presents the psychometric properties of a questionnaire measure that updates and extends Larrivee and Cook's (1979) Opinions Relative to Mainstreaming Scale in terms of structure, terminology, and language. The revised scale was tested using a sample of 106 teachers based in inclusive mainstream schools. Using Principal Component…

  9. The Dysfunctional Attitudes Scale: Psychometric Properties in Depressed Adolescents

    Science.gov (United States)

    Rogers, Gregory M.; Park, Jong-Hyo; Essex, Marilyn J.; Klein, Marjorie H.; Silva, Susan G.; Hoyle, Rick H.; Curry, John F.; Feeny, Norah C.; Kennard, Betsy; Kratochvil, Christopher J.; Pathak, Sanjeev; Reinecke, Mark A.; Rosenberg, David R.; Weller, Elizabeth B.; March, John S.

    2009-01-01

    The psychometric properties and factor structure of the Dysfunctional Attitudes Scale were examined in a sample of 422 male and female adolescents (ages 12-17) with current major depressive disorder. The scale demonstrated high internal consistency ([alpha] = 0.93) and correlated significantly with self-report and interview-based measures of…

  10. PSYCHOMETRIC PROPERTIES OF BRADBURN AFFECT BALANCE SCALE AMONG ELDERLY PERSONS

    NARCIS (Netherlands)

    KEMPEN, GIJM

    Some psychometric properties of the Affect Balance Scale have been tested on a random sample of 354 elderly people in the Netherlands. Internal reliability estimates were comparable with prior ones, and the 8-wk. test-retest reliability is reasonable for these 5-item measures.

  11. Counselor Competence, Performance Assessment, and Program Evaluation: Using Psychometric Instruments

    Science.gov (United States)

    Tate, Kevin A.; Bloom, Margaret L.; Tassara, Marcel H.; Caperton, William

    2014-01-01

    Psychometric instruments have been underutilized by counselor educators in performance assessment and program evaluation efforts. As such, we conducted a review of the literature that revealed 41 instruments fit for such efforts. We described and critiqued these instruments along four dimensions--"Target Domain," "Format,"…

  12. Psychometric properties of the Danish Strength and Difficulties Questionnaire

    DEFF Research Database (Denmark)

    Niclasen, Janni; Teasdale, Thomas William; Andersen, Anne-Marie Nybo

    2012-01-01

    The Strength and Difficulties Questionnaire (SDQ) is a brief behavioural five factor instrument developed to assess emotional and behavioural problems in children and adolescents. The aim of the current study was to evaluate the psychometric properties for parent and teacher ratings in the Danish...

  13. On the Psychometric Study of Human Life History Strategies.

    Science.gov (United States)

    Richardson, George B; Sanning, Blair K; Lai, Mark H C; Copping, Lee T; Hardesty, Patrick H; Kruger, Daniel J

    2017-01-01

    This article attends to recent discussions of validity in psychometric research on human life history strategy (LHS), provides a constructive critique of the extant literature, and describes strategies for improving construct validity. To place the psychometric study of human LHS on more solid ground, our review indicates that researchers should (a) use approaches to psychometric modeling that are consistent with their philosophies of measurement, (b) confirm the dimensionality of life history indicators, and (c) establish measurement invariance for at least a subset of indicators. Because we see confirming the dimensionality of life history indicators as the next step toward placing the psychometrics of human LHS on more solid ground, we use nationally representative data and structural equation modeling to test the structure of middle adult life history indicators. We found statistically independent mating competition and Super-K dimensions and the effects of parental harshness and childhood unpredictability on Super-K were consistent with past research. However, childhood socioeconomic status had a moderate positive effect on mating competition and no effect on Super-K, while unpredictability did not predict mating competition. We conclude that human LHS is more complex than previously suggested-there does not seem to be a single dimension of human LHS among Western adults and the effects of environmental components seem to vary between mating competition and Super-K.

  14. Development and Initial Psychometrics of Counseling Supervisor's Behavior Questionnaire

    Science.gov (United States)

    Lee, Ahram; Park, Eun Hye; Byeon, Eunji; Lee, Sang Min

    2016-01-01

    This study describes the development and psychometric properties of the Counseling Supervisor's Behavior Questionnaire, designed to assess the specific behaviors of supervisors, which can be observed by supervisees during supervision sessions. Factor structure, construct and concurrent validity, and internal consistency reliability of the…

  15. Psychometric Properties of the Brief Autism Mealtime Behaviors Inventory

    Science.gov (United States)

    DeMand, Alexandra; Johnson, Cynthia; Foldes, Emily

    2015-01-01

    The purpose of this study was to explore the psychometric properties of the Brief Autism Mealtime Behaviors Inventory (BAMBI). In a sample of 273 well-characterized children with ASD, we explored the factor structure of the BAMBI, determined the internal consistency of a newly derived factor structure and provide an empirically derived cut-off for…

  16. Rasch Analysis for Psychometric Improvement of Science Attitude Rating Scales

    Science.gov (United States)

    Oon, Pey-Tee; Fan, Xitao

    2017-01-01

    Students' attitude towards science (SAS) is often a subject of investigation in science education research. Survey of rating scale is commonly used in the study of SAS. The present study illustrates how Rasch analysis can be used to provide psychometric information of SAS rating scales. The analyses were conducted on a 20-item SAS scale used in an…

  17. The Compulsive Internet Use Scale (CIUS): Some Psychometric Properties

    NARCIS (Netherlands)

    Meerkerk, G.J.; Eijnden, R.J.J.M. van den; Vermulst, A.A.; Garretsen, H.F.L.

    2009-01-01

    The present study aimed to develop a short, easily administered, psychometrically sound, and valid instrument to assess the severity of compulsive Internet use. A set of criteria was determined based on the addiction literature. Next, the internal consistency and convergent validity were determined,

  18. The Schizotypic Syndrome Questionnaire (SSQ): Psychometrics, validation and norms.

    NARCIS (Netherlands)

    Kampen, van D.

    2006-01-01

    Abstract This paper examines the psychometric properties (reliability and factor structure) and validity (relationship with various self-report measures and SPEM dysfunction) of the SSQ or Schizotypic Syndrome Questionnaire, a 108-item inventory for the measurement of 12 prodromal or schizotypic

  19. Psychometric Analysis of Role Conflict and Ambiguity Scales in Academia

    Science.gov (United States)

    Khan, Anwar; Yusoff, Rosman Bin Md.; Khan, Muhammad Muddassar; Yasir, Muhammad; Khan, Faisal

    2014-01-01

    A comprehensive Psychometric Analysis of Rizzo et al.'s (1970) Role Conflict & Ambiguity (RCA) scales were performed after its distribution among 600 academic staff working in six universities of Pakistan. The reliability analysis includes calculation of Cronbach Alpha Coefficients and Inter-Items statistics, whereas validity was determined by…

  20. Psychometrics and Assessment of an Empathy Distance Gradient

    Science.gov (United States)

    Hollar, David W.

    2017-01-01

    Research has indicated declining empathy within specific professions and social structures. Few psychometric instruments have addressed empathy within the context of psychological distance/relatedness to other individuals and even to other species, relationships that can be important contributors to psychological well-being and health. We…

  1. Prognostic Validity of Clinical and Psychometric Variables in Psychogeriatric Inpatients.

    Science.gov (United States)

    Appell, Julian; Kazarian, Shahe S.

    1990-01-01

    Evaluated prognostic validity of clinical and psychometric variables in psychogeriatric inpatients. Divided elderly patients into three outcome groups: nondischarged (n=29), discharged-readmitted (n=38), and discharged-nonreadmitted (n=67). Discriminant analysis of data yielded two predictive functions, which appeared to represent physical status…

  2. Psychometric properties of Chronic Pain Acceptance Questionnaires : A systematic review

    NARCIS (Netherlands)

    Reneman, Michiel F.; Dijkstra, Arie; Geertzen, Jan H. B.; Dijkstra, Pieter

    Background: Theoretically, acceptance of chronic pain (CP) is an important determinant in the functional status and well-being of patients with CP. Several questionnaires that aim to measure acceptance of CP have been developed. An overview of the psychometric properties of these questionnaires is

  3. The Compulsive Internet Use Scale (CIUS): Some Psychometric Properties

    NARCIS (Netherlands)

    Meerkerk, G.J.; Eijnden, R.J.J.M. van den; Vermulst, A.A.; Garretsen, H.F.L.

    2009-01-01

    The present study aimed to develop a short, easily administered, psychometrically sound, and valid instrument to assess the severity of compulsive Internet use. A set of criteria was determined based on the addiction literature. Next, the internal consistency and convergent validity were determined,

  4. Psychometric Properties of the Fatigue Severity Scale in Polio Survivors

    Science.gov (United States)

    Burger, Helena; Franchignoni, Franco; Puzic, Natasa; Giordano, Andrea

    2010-01-01

    The objective of this study was to evaluate by means of classical test theory and Rasch analysis the scaling characteristics and psychometric properties of the Fatigue Severity Scale (FSS) in polio survivors. A questionnaire, consisting of five general questions (sex, age, age at time of acute polio, sequelae of polio, and new symptoms), the FSS,…

  5. Development and Psychometric Evaluation of a Measure of Intuitive Eating

    Science.gov (United States)

    Tylka, Tracy L.

    2006-01-01

    Intuitive eating is characterized by eating based on physiological hunger and satiety cues rather than situational and emotional cues and is associated with psychological well-being. This study reports on the development and initial psychometric evaluation of the Intuitive Eating Scale (IES) with data collected in 4 studies from 1,260 college…

  6. Clinical Teaching Effectiveness Instrument: Development and Psychometric Testing.

    Science.gov (United States)

    Copeland, H. Liesel; Hewson, Mariana

    This report describes the development and psychometric qualities of a new instrument to assess clinical teaching effectiveness in medical education. The strength of the instrument is seen to lie in the qualitative development process involving iterative checking with key stakeholders; its high reliability, validity, and feasibility; and its ease…

  7. Parent Behavior Importance and Parent Behavior Frequency Questionnaires: Psychometric Characteristics

    Science.gov (United States)

    Mowder, Barbara A.; Sanders, Michelle

    2008-01-01

    This study examined the psychometric characteristics of two parenting measures: the Parent Behavior Importance Questionnaire (PBIQ) and Parent Behavior Frequency Questionnaire (PBFQ). Both research questionnaires are based on the parent development theory (PDT) and offer parent as well as non-parent respondents the opportunity to rate 38 parenting…

  8. Psychometric Characteristics of the Professor-Student Rapport Scale

    Science.gov (United States)

    Ryan, Rebecca G.; Wilson, Janie H.; Pugh, James L.

    2011-01-01

    In this study, the authors assessed the psychometric properties of the Professor-Student Rapport Scale, the first scale to measure professor-student rapport. The scale was found to have adequate test-retest and internal-consistency reliability. In addition to these findings, measures used to determine convergent validity included the Working…

  9. The drug effects questionnaire: psychometric support across three drug types.

    Science.gov (United States)

    Morean, Meghan E; de Wit, Harriet; King, Andrea C; Sofuoglu, Mehmet; Rueger, Sandra Y; O'Malley, Stephanie S

    2013-05-01

    The Drug Effects Questionnaire (DEQ) is widely used in studies of acute subjective response (SR) to a variety of substances, but the format of the DEQ varies widely across studies, and details of its psychometric properties are lacking. Thus, the field would benefit from demonstrating the reliability and validity of the DEQ for use across multiple substances. The current study evaluated the psychometric properties of several variations of DEQ items, which assessed the extent to which participants (1) feel any substance effect(s), (2) feel high, (3) like the effects, (4) dislike the effects, and (5) want more of the substance using 100-mm visual analog scales. DEQ data from three placebo-controlled studies were analyzed to examine SR to amphetamine, nicotine, and alcohol. We evaluated the internal structure of the DEQ for use with each substance as well as relationships between scale items, measures of similar constructs, and substance-related behaviors. Results provided preliminary psychometric support for items assessing each DEQ construct (feel, high, dislike, like, and more). Based on the study results, we identify several common limitations of extant variants of the DEQ and recommend an improved version of the measure. The simplicity and brevity of the DEQ combined with its promising psychometric properties support its use in future SR research across a variety of substances.

  10. The Schizotypic Syndrome Questionnaire (SSQ): Psychometrics, validation and norms.

    NARCIS (Netherlands)

    Kampen, van D.

    2006-01-01

    Abstract This paper examines the psychometric properties (reliability and factor structure) and validity (relationship with various self-report measures and SPEM dysfunction) of the SSQ or Schizotypic Syndrome Questionnaire, a 108-item inventory for the measurement of 12 prodromal or schizotypic sym

  11. Psychometric Evaluation of the Malay Satisfaction with Life Scale

    Science.gov (United States)

    Swami, Viren; Chamorro-Premuzic, Tomas

    2009-01-01

    The Satisfaction With Life Scale (SWLS) is one of the most widely used scales for the measurement of subjective well-being across the globe, but no satisfactory version exists for use among Malay-speaking populations. The present study reports on the translation of a new Malay SWLS and examines its psychometric properties in a community sample of…

  12. Psychometric Analysis of the Diagnostic Evaluation of Language Variation Assessment

    Science.gov (United States)

    Petscher, Yaacov; Connor, Carol McDonald; Al Otaiba, Stephanie

    2012-01-01

    This study investigated the psychometrics of the "Diagnostic Evaluation of Language Variation-Screening Test" (DELV-S) test using confirmatory factor analysis, item response theory, and differential item functioning (DIF). Responses from 1,764 students in kindergarten through second grade were used in the study, with results indicating…

  13. A Psychometric Evaluation of Super's Work Values Inventory--Revised

    Science.gov (United States)

    Robinson, Carrie H.; Betz, Nancy E.

    2008-01-01

    This study describes the psychometric evaluation of Super's Work Values Inventory--Revised (SWVI-R), an instrument comprised of 12 scales measuring the relative importance placed on the following work-related value dimensions: Achievement, Coworkers, Creativity, Income, Independence, Lifestyle, Mental Challenge, Prestige, Security, Supervision,…

  14. Psychometric Properties of the "Drug and Alcohol Survey".

    Science.gov (United States)

    Moskowitz, Joel M.; And Others

    Results obtained from scaling the "Drug and Alcohol Survey" (DAS), a questionnaire that assesses the drug involvement of secondary school students are documented. The scales are evaluated in terms of their psychometric properties, their compatability with a change model, and their utility as outcome measures of substance abuse prevention…

  15. Evaluation of Psychometric Properties of the Malay Version ...

    African Journals Online (AJOL)

    The 10-item version of Perceived Stress Scale (PSS-10) is ... [1-6]. There is a need to investigate the psychometric properties of the Malay version of ... 2015, IP: 41.135.175.131] || Click here to download free Android application for this journal ...

  16. The Juvenile Addiction Risk Rating: Development and Initial Psychometrics

    Science.gov (United States)

    Powell, Michael; Newgent, Rebecca A.

    2016-01-01

    This article describes the development and psychometrics of the Juvenile Addiction Risk Rating. The Juvenile Addiction Risk Rating is a brief screening of addiction potential based on 10 risk factors predictive of youth alcohol and drug-related problems that assists examiners in more accurate treatment planning when self-report information is…

  17. Psychometric properties of the Questionnaire for Secondary Traumatization

    Directory of Open Access Journals (Sweden)

    Katharina Weitkamp

    2014-01-01

    Full Text Available Background: During the past several years, there has been a growing interest in the negative effects that providing therapy may have on therapists. Of special interest is a phenomenon called secondary traumatization, which can arise while working with traumatized clients. To develop a simple screening tool for secondary traumatization, a quantitative assessment instrument was constructed using a data-driven approach based on qualitative interviews with affected trauma therapists as well as experienced supervisors in trauma therapy. Objective: The aim of the current study was to analyze the psychometric properties of the newly developed Questionnaire for Secondary Traumatization (FST acute and lifetime version and to determine the most appropriate scoring procedure. Method: To this end, three independent samples of psychotherapists (n=371, trauma therapists in training (n=80, and refugee counselors (n=197 filled out an online questionnaire battery. Data structure was analyzed using factor analyses, cluster analyses, and reliability analyses. Results: Factor analyses yielded a six-factor structure for both the acute and the lifetime version with only a small number of items loading on differing factors. Cluster analyses suggested a single scale structure of the questionnaire. The FST total score showed good internal consistencies across all three samples, while internal consistency of the six extracted factors was mixed. Conclusion: With the FST, a reliable screening instrument for acute and lifetime secondary traumatization is now available which is free of charge and yields a sum score for quick evaluation. The six-factor structure needs to be verified with confirmatory factor analyses.

  18. How to measure prenatal stress? A systematic review of psychometric instruments to assess psychosocial stress during pregnancy.

    Science.gov (United States)

    Nast, Irina; Bolten, Margarete; Meinlschmidt, Gunther; Hellhammer, Dirk H

    2013-07-01

    A growing body of literature documents associations of maternal psychosocial stress during pregnancy with fetal, infant and child behaviour and development. However, findings across studies are often inconsistent, which may in part be due to differences in stress definitions and assessments. We systematically reviewed methods applied to assess maternal psychosocial stress during pregnancy in studies looking at associations with biobehavioural outcomes in the offspring. A systematic literature search was performed on Web of Science and PubMed for the time period between January 1999 and October 2009. Psychometric instruments assessing maternal psychosocial stress during pregnancy were identified and described if data on psychometric properties were available. We identified 115 publications that assessed psychosocial stress during pregnancy with validated methods. These publications applied overall 43 different instruments assessing constructs falling under seven categories, ordered according to their frequency of use: anxiety, depression, daily hassles, aspects of psychological symptomatology (not reduced to anxiety or depression), life events, specific socio-environmental stressors and stress related to pregnancy and parenting. If available, we provide information on validity and reliability of the instruments for samples of pregnant women. Within the 'prenatal stress' research, a broad range of instruments is applied to assess psychosocial stress during pregnancy. Prenatal stress research should take into consideration that the variety of methods in use might hamper the comparability of stress research results. In each category of stress constructs, one instrument with good psychometric properties in pregnant women is highlighted as the best currently available measure. © 2013 John Wiley & Sons Ltd.

  19. Prolonged grief disorder: Psychometric validation of criteria proposed for DSM-V and ICD-11.

    Directory of Open Access Journals (Sweden)

    Holly G Prigerson

    2009-08-01

    Full Text Available BACKGROUND: Bereavement is a universal experience, and its association with excess morbidity and mortality is well established. Nevertheless, grief becomes a serious health concern for a relative few. For such individuals, intense grief persists, is distressing and disabling, and may meet criteria as a distinct mental disorder. At present, grief is not recognized as a mental disorder in the DSM-IV or ICD-10. The goal of this study was to determine the psychometric validity of criteria for prolonged grief disorder (PGD to enhance the detection and potential treatment of bereaved individuals at heightened risk of persistent distress and dysfunction. METHODS AND FINDINGS: A total of 291 bereaved respondents were interviewed three times, grouped as 0-6, 6-12, and 12-24 mo post-loss. Item response theory (IRT analyses derived the most informative, unbiased PGD symptoms. Combinatoric analyses identified the most sensitive and specific PGD algorithm that was then tested to evaluate its psychometric validity. Criteria require reactions to a significant loss that involve the experience of yearning (e.g., physical or emotional suffering as a result of the desired, but unfulfilled, reunion with the deceased and at least five of the following nine symptoms experienced at least daily or to a disabling degree: feeling emotionally numb, stunned, or that life is meaningless; experiencing mistrust; bitterness over the loss; difficulty accepting the loss; identity confusion; avoidance of the reality of the loss; or difficulty moving on with life. Symptoms must be present at sufficiently high levels at least six mo from the death and be associated with functional impairment. CONCLUSIONS: The criteria set for PGD appear able to identify bereaved persons at heightened risk for enduring distress and dysfunction. The results support the psychometric validity of the criteria for PGD that we propose for inclusion in DSM-V and ICD-11. Please see later in the article for

  20. Psychometric evaluation of the altered states of consciousness rating scale (OAV.

    Directory of Open Access Journals (Sweden)

    Erich Studerus

    Full Text Available BACKGROUND: The OAV questionnaire has been developed to integrate research on altered states of consciousness (ASC. It measures three primary and one secondary dimensions of ASC that are hypothesized to be invariant across ASC induction methods. The OAV rating scale has been in use for more than 20 years and applied internationally in a broad range of research fields, yet its factorial structure has never been tested by structural equation modeling techniques and its psychometric properties have never been examined in large samples of experimentally induced ASC. METHODOLOGY/PRINCIPAL FINDINGS: The present study conducted a psychometric evaluation of the OAV in a sample of psilocybin (n = 327, ketamine (n = 162, and MDMA (n = 102 induced ASC that was obtained by pooling data from 43 experimental studies. The factorial structure was examined by confirmatory factor analysis, exploratory structural equation modeling, hierarchical item clustering (ICLUST, and multiple indicators multiple causes (MIMIC modeling. The originally proposed model did not fit the data well even if zero-constraints on non-target factor loadings and residual correlations were relaxed. Furthermore, ICLUST suggested that the "oceanic boundlessness" and "visionary restructuralization" factors could be combined on a high level of the construct hierarchy. However, because these factors were multidimensional, we extracted and examined 11 new lower order factors. MIMIC modeling indicated that these factors were highly measurement invariant across drugs, settings, questionnaire versions, and sexes. The new factors were also demonstrated to have improved homogeneities, satisfactory reliabilities, discriminant and convergent validities, and to differentiate well among the three drug groups. CONCLUSIONS/SIGNIFICANCE: The original scales of the OAV were shown to be multidimensional constructs. Eleven new lower order scales were constructed and demonstrated to have desirable psychometric

  1. Psychometric performance of a generic walking scale (Walk-12G) in multiple sclerosis and Parkinson's disease.

    Science.gov (United States)

    Bladh, Stina; Nilsson, Maria H; Hariz, Gun-Marie; Westergren, Albert; Hobart, Jeremy; Hagell, Peter

    2012-04-01

    Walking difficulties are common in neurological and other disorders, as well as among the elderly. There is a need for reliable and valid instruments for measuring walking difficulties in everyday life since existing gait tests are clinician rated and focus on situation specific capacity. The Walk-12G was adapted from the 12-item multiple sclerosis walking scale as a generic patient-reported rating scale for walking difficulties in everyday life. The aim of this study is to examine the psychometric properties of the Walk-12G in people with multiple sclerosis (MS) and Parkinson's disease (PD). The Walk-12G was translated into Swedish and evaluated qualitatively among 25 people with and without various neurological and other conditions. Postal survey (MS, n = 199; PD, n = 189) and clinical (PD, n = 36) data were used to test its psychometric properties. Respondents considered the Walk-12G relevant and easy to use. Mean completion time was 3.5 min. Data completeness was good (0.6). Coefficient alpha and test-retest reliabilities were >0.9, and standard errors of measurement were 2.3-2.8. Construct validity was supported by correlations in accordance with a priori expectations. Results are similar to those with previous Walk-12G versions, indicating that scale adaptation was successful. Data suggest that the Walk-12G meets rating scale criteria for clinical trials, making it a valuable complement to available gait tests. Further studies involving other samples and application of modern psychometric methods are warranted to examine the scale in more detail.

  2. Development and psychometric testing of the Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS

    Directory of Open Access Journals (Sweden)

    Ohlsson Bodil

    2007-05-01

    Full Text Available Abstract Background The aim of this study was to develop and psychometrically test a short, patient-reported questionnaire to be used in clinical practice for patients with Irritable Bowel Syndrome (IBS. The Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS questionnaire was designed to measure the treatment response of symptoms and well-being in patients suffering from IBS. Methods The VAS-IBS was psychometrically tested for content and criterion validity, scale acceptability, item-reduction, internal reliability consistency, simplicity, and speed. Two samples were used. One expert panel (five physicians and four registered nurses, who gave their opinion on the content validity, and one of 71 patients with IBS (mean age 38 years SD +13, range 19–65, who completed the VAS-IBS, as well as the Gastrointestinal Symptom Rating Scale and the Psychological General Well-Being Index for criterion validity. Results The items in the VAS-IBS capture the main physical concerns women with IBS might present and the psychometric testing confirmed that the VAS-IBS is an acceptable homogeneous patient-reported questionnaire indicated by Cronbach's alpha internal consistency reliability coefficient, with a value of 0.85. All correlations to test the criterion validity performed by using Pearson's correlation test, were statistically significant (p Conclusion The VAS-IBS appears to be reliable and user-friendly, for patients as well as for health professionals. The final version of the VAS-IBS including nine items needs to be further tested in clinical practice cross-culturally in women as well as in men.

  3. Neurorehabilitation using the virtual reality based Rehabilitation Gaming System: methodology, design, psychometrics, usability and validation

    Directory of Open Access Journals (Sweden)

    Verschure Paul FMJ

    2010-09-01

    Full Text Available Abstract Background Stroke is a frequent cause of adult disability that can lead to enduring impairments. However, given the life-long plasticity of the brain one could assume that recovery could be facilitated by the harnessing of mechanisms underlying neuronal reorganization. Currently it is not clear how this reorganization can be mobilized. Novel technology based neurorehabilitation techniques hold promise to address this issue. Here we describe a Virtual Reality (VR based system, the Rehabilitation Gaming System (RGS that is based on a number of hypotheses on the neuronal mechanisms underlying recovery, the structure of training and the role of individualization. We investigate the psychometrics of the RGS in stroke patients and healthy controls. Methods We describe the key components of the RGS and the psychometrics of one rehabilitation scenario called Spheroids. We performed trials with 21 acute/subacute stroke patients and 20 healthy controls to study the effect of the training parameters on task performance. This allowed us to develop a Personalized Training Module (PTM for online adjustment of task difficulty. In addition, we studied task transfer between physical and virtual environments. Finally, we assessed the usability and acceptance of the RGS as a rehabilitation tool. Results We show that the PTM implemented in RGS allows us to effectively adjust the difficulty and the parameters of the task to the user by capturing specific features of the movements of the arms. The results reported here also show a consistent transfer of movement kinematics between physical and virtual tasks. Moreover, our usability assessment shows that the RGS is highly accepted by stroke patients as a rehabilitation tool. Conclusions We introduce a novel VR based paradigm for neurorehabilitation, RGS, which combines specific rehabilitative principles with a psychometric evaluation to provide a personalized and automated training. Our results show that the

  4. Psychometric assessment of the IBS-D Daily Symptom Diary and Symptom Event Log.

    Science.gov (United States)

    Rosa, Kathleen; Delgado-Herrera, Leticia; Zeiher, Bernie; Banderas, Benjamin; Arbuckle, Rob; Spears, Glen; Hudgens, Stacie

    2016-12-01

    Diarrhea-predominant irritable bowel syndrome (IBS-D) can considerably impact patients' lives. Patient-reported symptoms are crucial in understanding the diagnosis and progression of IBS-D. This study psychometrically evaluates the newly developed IBS-D Daily Symptom Diary and Symptom Event Log (hereafter, "Event Log") according to US regulatory recommendations. A US-based observational field study was conducted to understand cross-sectional psychometric properties of the IBS-D Daily Symptom Diary and Event Log. Analyses included item descriptive statistics, item-to-item correlations, reliability, and construct validity. The IBS-D Daily Symptom Diary and Event Log had no items with excessive missing data. With the exception of two items ("frequency of gas" and "accidents"), moderate to high inter-item correlations were observed among all items of the IBS-D Daily Symptom Diary and Event Log (day 1 range 0.67-0.90). Item scores demonstrated reliability, with the exception of the "frequency of gas" and "accidents" items of the Diary and "incomplete evacuation" item of the Event Log. The pattern of correlations of the IBS-D Daily Symptom Diary and Event Log item scores with generic and disease-specific measures was as expected, moderate for similar constructs and low for dissimilar constructs, supporting construct validity. Known-groups methods showed statistically significant differences and monotonic trends in each of the IBS-D Daily Symptom Diary item scores among groups defined by patients' IBS-D severity ratings ("none"/"mild," "moderate," or "severe"/"very severe"), supporting construct validity. Initial psychometric results support the reliability and validity of the items of the IBS-D Daily Symptom Diary and Event Log.

  5. Joint entropy for space and spatial frequency domains estimated from psychometric functions of achromatic discrimination.

    Science.gov (United States)

    Silveira, Vladímir de Aquino; Souza, Givago da Silva; Gomes, Bruno Duarte; Rodrigues, Anderson Raiol; Silveira, Luiz Carlos de Lima

    2014-01-01

    We used psychometric functions to estimate the joint entropy for space discrimination and spatial frequency discrimination. Space discrimination was taken as discrimination of spatial extent. Seven subjects were tested. Gábor functions comprising unidimensionalsinusoidal gratings (0.4, 2, and 10 cpd) and bidimensionalGaussian envelopes (1°) were used as reference stimuli. The experiment comprised the comparison between reference and test stimulithat differed in grating's spatial frequency or envelope's standard deviation. We tested 21 different envelope's standard deviations around the reference standard deviation to study spatial extent discrimination and 19 different grating's spatial frequencies around the reference spatial frequency to study spatial frequency discrimination. Two series of psychometric functions were obtained for 2%, 5%, 10%, and 100% stimulus contrast. The psychometric function data points for spatial extent discrimination or spatial frequency discrimination were fitted with Gaussian functions using the least square method, and the spatial extent and spatial frequency entropies were estimated from the standard deviation of these Gaussian functions. Then, joint entropy was obtained by multiplying the square root of space extent entropy times the spatial frequency entropy. We compared our results to the theoretical minimum for unidimensional Gábor functions, 1/4π or 0.0796. At low and intermediate spatial frequencies and high contrasts, joint entropy reached levels below the theoretical minimum, suggesting non-linear interactions between two or more visual mechanisms. We concluded that non-linear interactions of visual pathways, such as the M and P pathways, could explain joint entropy values below the theoretical minimum at low and intermediate spatial frequencies and high contrasts. These non-linear interactions might be at work at intermediate and high contrasts at all spatial frequencies once there was a substantial decrease in joint

  6. Work-nonwork interference: Preliminary results on the psychometric properties of a new instrument

    Directory of Open Access Journals (Sweden)

    Eileen Koekemoer

    2010-03-01

    Full Text Available Orientation: Recently, a new work-nonwork interference instrument was developed to measure the interference between work and nonwork roles in the South African context (Koekemoer, Mostert & Rothmann, 2010. However, no information is available on the psychometric properties of this instrument.Research purpose: The objectives of this study were to investigate the internal validity (construct, discriminant and convergent validity, reliability and external validity (relationship with theoretically relevant variables, including job characteristics, home characteristics, burnout, ill health and life satisfaction of the instrument.Motivation for the study: Work-family interaction is a key topic receiving significant research attention. In order to facilitate comparison across work-family studies, the use of psychometrically sound instruments is of great importance.Research design, approach and method: A cross-sectional survey design was used for the target population of married employees with children working at a tertiary institution in the North West province (n = 366. In addition to the new instrument, job characteristics, home characteristics, burnout, ill health and life satisfaction were measured.Main findings: The results provided evidence for construct, discriminant and convergent validity, reliability and significant relations with external variables.Practical/managerial implications: The new instrument can be used by researchers and managers as a test under development to investigate the interference between work and different nonwork roles (i.e. parental role, spousal role, work role, domestic role and specific relations with antecedents (e.g. job/home characteristics and well-being (e.g. burnout, ill health and life satisfaction.Contribution/value-add: This study provides preliminary information on the psychometric properties of a new instrument that measures the interference between work and nonwork.

  7. 面向风电接纳能力评价的风资源/负荷典型场景集生成方法与应用%The Generation Method and Application of Wind Resources/Load Typical Scenario Set for Evaluation of Wind Power Grid Integration

    Institute of Scientific and Technical Information of China (English)

    丁明; 解蛟龙; 刘新宇; 石文辉

    2016-01-01

    The increasing capacity of wind farm proposes severe challenges to its integration capability and higher requirements for the power system’s planning and operation. The middle/long-term planning and dispatching of power system pertains to the analysis and evaluation for the vast variety of scenarios and solutions. Therefore, the approach to capture typical scenarios at a desirable efficiency and precision is impending. This paper proposed a typical scenario set generating method which consist of cluster analysis and subtraction & merge to the wind farm output as well as power load within computing periods, and produce a set of typical scenarios which features the characteristic of the history data within the computing period. A provincial power grid was chosen as an example to compare the wind power grid integration and economic indices of the typical scenario set method with the traditional time sequence simulation method as well as typical day method. The correlation between the number of scenario and achievable computation precision was also discussed. The results show that the typical scenario set generating method proposed has high accuracy and efficiency in computation, and thus presents substantial engineering value.%随着风电装机容量的增加,对电网的风电接纳能力提出严峻挑战,对含风电场的电力系统规划和运行提出了更高的要求。电力系统的中长期规划和运行调度涉及对大量场景和方案的分析评价,如何形成具有代表性的典型场景以兼顾计算效率和精度是亟需解决的问题。该文提出一种典型场景集生成方法,对计算周期内风电及负荷数据进行聚类分析、消减融合,形成能够反映计算周期内历史数据特征的典型场景集。以某省级电网为例,对比分析典型场景集法和传统时序仿真法、典型日法的风电接纳能力和经济性指标,研究典型场景个数与计算精度的关

  8. The Cervical Dystonia Impact Profile (CDIP-58: Can a Rasch developed patient reported outcome measure satisfy traditional psychometric criteria?

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    Bhatia Kailash P

    2008-08-01

    Full Text Available Abstract Background The United States Food and Drug Administration (FDA are currently producing guidelines for the scientific adequacy of patient reported outcome measures (PROMs in clinical trials, which will have implications for the selection of scales used in future clinical trials. In this study, we examine how the Cervical Dystonia Impact Profile (CDIP-58, a rigorous Rasch measurement developed neurologic PROM, stands up to traditional psychometric criteria for three reasons: 1 provide traditional psychometric evidence for the CDIP-58 in line with proposed FDA guidelines; 2 enable researchers and clinicians to compare it with existing dystonia PROMs; and 3 help researchers and clinicians bridge the knowledge gap between old and new methods of reliability and validity testing. Methods We evaluated traditional psychometric properties of data quality, scaling assumptions, targeting, reliability and validity in a group of 391 people with CD. The main outcome measures used were the CDIP-58, Medical Outcome Study Short Form-36, the 28-item General Health Questionnaire, and Hospital and Anxiety and Depression Scale. Results A total of 391 people returned completed questionnaires (corrected response rate 87%. Analyses showed: 1 data quality was high (low missing data ≤ 4%, subscale scores could be computed for > 96% of the sample; 2 item groupings passed tests for scaling assumptions; 3 good targeting (except for the Sleep subscale, ceiling effect = 27%; 4 good reliability (Cronbach's alpha ≥ 0.92, test-retest intraclass correlations ≥ 0.83; and 5 validity was supported. Conclusion This study has shown that new psychometric methods can produce a PROM that stands up to traditional criteria and supports the clinical advantages of Rasch analysis.

  9. Attachment in Adults with Intellectual Disabilities: Preliminary Investigation of the Psychometric Properties of the Manchester Attachment Scale-Third Party Observational Measure

    Science.gov (United States)

    Penketh, Victoria; Hare, Dougal Julian; Flood, Andrea; Walker, Samantha

    2014-01-01

    Background: The Manchester Attachment Scale-Third party observational measure (MAST) was developed to assess secure attachment style for adults with intellectual disabilities. The psychometric properties of the MAST were examined. Materials and Methods: Professional carers (N = 40) completed the MAST and measures related to the construct of…

  10. Adaptation of the Diabetes Health Profile (DHP-1) for use with patients with Type 2 diabetes mellitus: psychometric evaluation and cross-cultural comparison

    DEFF Research Database (Denmark)

    Meadows, K A; Abrams, C; Sandbaek, A

    2000-01-01

    AIMS: To adapt the Diabetes Health Profile (DHP-1) for use with English speaking patients with Type 2 diabetes mellitus and to evaluate the psychometric properties of the adapted measure in a UK and Danish sample of insulin, tablet and diet-treated patients with Type 2 diabetes. METHODS: Following...

  11. Psychometric Properties of the German Version of the Pain Vigilance and Awareness Questionnaire (PVAQ) in Pain-Free Samples and Samples with Acute and Chronic Pain

    NARCIS (Netherlands)

    Kunz, M; Capito, E S; Horn-Hofmann, C; Baum, C; Scheel, J; Karmann, A J; Priebe, J A; Lautenbacher, S

    2016-01-01

    PURPOSE: The way individuals attend to pain is known to have a considerable impact on the experience and chronification of pain. One method to assess the habitual "attention to pain" is the Pain Vigilance and Awareness Questionnaire (PVAQ). With the present study, we aimed to test the psychometric p

  12. Psychometric Properties of the Lower Extremity Subscale of the Fugl-Myer Assessment for Community-dwelling Hemiplegic Stroke Patients.

    Science.gov (United States)

    Park, Eun Young; Choi, Yoo Im

    2014-11-01

    [Purpose] The purpose of this study was to investigate the psychometric properties of the lower extremity subscale of the Fugl-Meyer Assessment lower extremity (FMA-LE) for community-dwelling hemiplegic stroke patients. [Subjects] The participants were 140 community-dwelling hemiplegic stroke patients. [Methods] To determine the psychometric properties of the FMA-LE, we examined construct validity, response characteristics, item discrimination, and internal consistency. [Results] Factor analysis of the FMA-LE revealed that the first factor explained 61.73% of the variance and provided evidence of unidimensionality. The FMA-LE did not show ceiling or floor effects; Cronbach's α was 0.935 (95% CI: 0.919-0.950). [Conclusion] Because the FMA-LE seems to be both valid and reliable, we conclude that it is appropriate for the measurement of the lower extremity motor impairment of community-dwelling hemiplegic stroke patients.

  13. Psychosocial Characteristics of Female Students in the Allied Health and Medical Colleges: Psychometrics of the Measures and Personality Profiles.

    Science.gov (United States)

    Hojat, Mohammadreza; Lyons, Kevin

    1998-01-01

    For the purpose of developing a comprehensive assessment method of predicting academic and professional success among health professions' students, a set of 12 psychosocial measures were administered and their psychometric properties were examined. Participants were 141 female allied health and 71 female medical students. Alpha and test-retest reliabilities and construct and concurrent validities of the measures were studied, and most of the measures were found to have satisfactory psychometric properties. Comparisons were also made between medical and allied health sciences students using the 12 psychosocial measures. Allied health students scored higher on loneliness, anxiety, depression, and scored lower on perception of general health and perception of their fathers as compared to medical students. Implications of the findings for development of prediction models of academic and professional performance are discussed.

  14. Herpes zoster - typical and atypical presentations.

    Science.gov (United States)

    Dayan, Roy Rafael; Peleg, Roni

    2017-08-01

    Varicella- zoster virus infection is an intriguing medical entity that involves many medical specialties including infectious diseases, immunology, dermatology, and neurology. It can affect patients from early childhood to old age. Its treatment requires expertise in pain management and psychological support. While varicella is caused by acute viremia, herpes zoster occurs after the dormant viral infection, involving the cranial nerve or sensory root ganglia, is re-activated and spreads orthodromically from the ganglion, via the sensory nerve root, to the innervated target tissue (skin, cornea, auditory canal, etc.). Typically, a single dermatome is involved, although two or three adjacent dermatomes may be affected. The lesions usually do not cross the midline. Herpes zoster can also present with unique or atypical clinical manifestations, such as glioma, zoster sine herpete and bilateral herpes zoster, which can be a challenging diagnosis even for experienced physicians. We discuss the epidemiology, pathophysiology, diagnosis and management of Herpes Zoster, typical and atypical presentations.

  15. Linguistic recycling in typical and atypical interaction.

    Science.gov (United States)

    Perkins, Michael R

    2014-01-01

    I present evidence that linguistic "recycling" - i.e., the redeployment of linguistic material from prior utterances during conversation - is a striking and prevalent feature not only of interaction between typical speakers, but also, and notably, of interaction involving the communication impaired. In the latter case, recycling may sometimes be used as a compensatory communicative resource when linguistic ability is compromised. Despite its prevalence, however, recycling has largely been ignored by clinical linguists. In addition to providing illustrations of linguistic recycling across a range of communication disorders, I also examine how it is subserved by phenomena such as priming, short-term memory and alignment. I subsequently argue for a shift in perspective that puts recycling at the heart of our perception of how typical and atypical interaction works, and suggest a number of potential benefits for clinical linguistics, ranging from the way we understand and analyse communication disorders to how we assess and treat them.

  16. Psychometric properties of the Persian version of the Liebowitz Social Anxiety Scale (LSAS

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    Mahdieh Sadat Khoshouei

    2007-06-01

    Full Text Available   Abstract: Liebowitz Social Anxiety Scale (LSAS is an instrument used to evaluate the severity of social phobia. It has been widely used in different contexts and cultures, presenting variable psychometric properties. The aim of this study is to investigate the psychometric properties of LSAS. Method: The sample consisted of 342 students (184 females, 158 males aged 19 - 34(Mean age=21.93, SD=3.44 years; Subjects were selected from eight faculties of Isfahan University, using a random clustering procedure. In order to measure test-retest reliability, LSAS was re-administered to fifty-eight students three weeks after the first session. Results: The method of Principal components analysis (Varimax Normalized Rotation was applied to evaluate structural validity of LSAS. The factor analysis defined 5 factors which covered 84.68% of the total variability of the data. The five factors extracted were: 1 speaking in a group; 2 social interaction in leisure activity; 3 activity in public; 4 attitude of disagreement or disapproval;and 5 social interaction with unknown person. The reliability coefficients (Cronbach alpha, split-half and test- retest were found to be satisfactory for the total scale and its subscales. Conclusions: The scale is valid and reliable for studies that require a standard

  17. Measuring hospital nurses' well-being at work - psychometric testing of the scale.

    Science.gov (United States)

    Päätalo, Kati; Kyngäs, Helvi

    2016-12-01

    Valid and reliable methods to measure nurses' well-being at work are needed. Well-being at work refers to a positive viewpoint and experience in a work context. The aim of this study is to test the psychometric properties of nurses' well-being at work-scale (NWB-scale). The NWB-scale was tested in a Finnish hospital (N = 233) using statistical methods. The NWB-scale consists of 67 items and 12 factors: patients' experience of high-quality care, assistance and support among nurses, nurses' togetherness and collaboration, satisfying practical organization of work, challenging and meaningful work, freedom to express diverse feelings in a work community, well-conducted everyday nursing, status related to the work itself, fair and supportive leadership, opportunities for professional development, fluent communication with other professionals, and being together with other nurses in an informal way. Content validity was good based on expert evaluations. Construct validity of the scale was also very good based on exploratory factor analysis. Reliability (internal consistency) was assessed by Cronbach's alpha coefficient, which ranged from 0.66 to 0.91. Based on psychometric properties, NWB is a valid and reliable scale to measure hospital nurses' well-being at work. Extrapolation to other professionals and settings needs required modification and careful testing.

  18. The psychometric properties of the Persian version of Interpersonal Sensitivity Measure

    Science.gov (United States)

    Mohammadian, Youkhabeh; Mahaki, Behzad; Lavasani, Fahimeh Fathali; Dehghani, Mahmoud; Vahid, Mohammadkazem Atef

    2017-01-01

    Background: Investigating the psychometric properties of existing psychometric scales in societies with differing dynamics can help with their external validity. This research specifically aimed at standardization and validation of Interpersonal Sensitivity Measure (IPSM) scale in Iran. Materials and Methods: Persian version of the IPSM was produced through forward translation, reconciliation, and back translation. A total of 357, nonclinical students were selected through multistage sampling method and completed a set of questionnaires including IPSM. Internal consistency, convergent validity, divergent validity, and test-retest reliability of the Persian version of the IPSM were analyzed. To assess the construct validity, confirmatory factor analysis (CFA) was performed. Results: Total IPSM, as well as all subscales showed satisfactory internal consistency (Cronbach's α =0.86 and 0.51–0.71, respectively). Test-retest reliability at a 2-week interval was significant, with intraclass correlation coefficient ranging between 0.73 and 0.92. In terms of convergent validity, IPSM showed the significant positive correlation with self-report measures of depression, social anxiety, and anxious attachment style. IPSM showed negative correlation with Social Desirability Scale and secure (C subscale of avoidant attachment style [AAS]) and dependent (D subscale of AAS), thus demonstrated divergent validity with these constructs. According to the CFA, the responses of the sample in this study were fitted to the original five-factor structure. Conclusion: The IPSM showed good validity and reliability and could be useful in assessing interpersonal sensitivity in Iranian population.

  19. The psychometric properties of the persian version of interpersonal sensitivity measure

    Directory of Open Access Journals (Sweden)

    Youkhabeh Mohammadian

    2017-01-01

    Full Text Available Background: Investigating the psychometric properties of existing psychometric scales in societies with differing dynamics can help with their external validity. This research specifically aimed at standardization and validation of Interpersonal Sensitivity Measure (IPSM scale in Iran. Materials and Methods: Persian version of the IPSM was produced through forward translation, reconciliation, and back translation. A total of 357, nonclinical students were selected through multistage sampling method and completed a set of questionnaires including IPSM. Internal consistency, convergent validity, divergent validity, and test-retest reliability of the Persian version of the IPSM were analyzed. To assess the construct validity, confirmatory factor analysis (CFA was performed. Results: Total IPSM, as well as all subscales showed satisfactory internal consistency (Cronbach's α =0.86 and 0.51–0.71, respectively. Test-retest reliability at a 2-week interval was significant, with intraclass correlation coefficient ranging between 0.73 and 0.92. In terms of convergent validity, IPSM showed the significant positive correlation with self-report measures of depression, social anxiety, and anxious attachment style. IPSM showed negative correlation with Social Desirability Scale and secure (C subscale of avoidant attachment style [AAS] and dependent (D subscale of AAS, thus demonstrated divergent validity with these constructs. According to the CFA, the responses of the sample in this study were fitted to the original five-factor structure. Conclusion: The IPSM showed good validity and reliability and could be useful in assessing interpersonal sensitivity in Iranian population.

  20. Group typicality, group loyalty and cognitive development.

    Science.gov (United States)

    Patterson, Meagan M

    2014-09-01

    Over the course of childhood, children's thinking about social groups changes in a variety of ways. Developmental Subjective Group Dynamics (DSGD) theory emphasizes children's understanding of the importance of conforming to group norms. Abrams et al.'s study, which uses DSGD theory as a framework, demonstrates the social cognitive skills underlying young elementary school children's thinking about group norms. Future research on children's thinking about groups and group norms should explore additional elements of this topic, including aspects of typicality beyond loyalty.

  1. Assessment of the Psychometric Properties of the New Version of Tehran- Stanford- Binet Intelligence Scale in Children with Dyslexia

    Directory of Open Access Journals (Sweden)

    Abas Mahvashe-Wernosfaderani

    2014-09-01

    Full Text Available Background: Cognitive abilities assessment, is considered to be one of the most complicated and controversial issues in psychological tests. In spite of great usage of new version of Tehran- Stanford- Binet intelligence scale in screening and diagnosis, they have not made so many endeavors to use this valid test in our country and little researches have been conducted to survey psychometric characteristics of mentioned scale. Given the above considerations, the aim of this study is to investigate Tehran-Stanford-Binet intelligence scale psychometric characteristics in dyslectic children. Materials and Methods: In this psychometric study with classical approach, the statistical society was all the students with dyslexia in the elementary schools of Tehran provinces in 1390. The sample size was equal with 120 students with dyslexia who were selected based on purposive sampling. The new version of Tehran-Stanford-Binet intelligence Scale which includes 10 subtests in verbal and nonverbal domains (fluid reasoning, knowledge, quantitative reasoning, visual spatial processing and working memory and eight IQ was used for them. Findings highlight characteristics of this tool is its ability to calculate the combined scores connected to the reading skills. ROC curve methods, kronbach alpha and pearson correlation was used to analyze the data. Results: Result show that SB5 Test has a good reliability and diagnostic validity. It has 98% sensitivity and a desirable potential to identify student with dyslexia (72%. Conclusion: SB5 could be used as an identificationtoal test for dyslexia.

  2. What Is Typical Is Good : The Influence of Face Typicality on Perceived Trustworthiness

    NARCIS (Netherlands)

    Sofer, Carmel; Dotsch, Ron; Wigboldus, Daniel H J; Todorov, Alexander

    2015-01-01

    The role of face typicality in face recognition is well established, but it is unclear whether face typicality is important for face evaluation. Prior studies have focused mainly on typicality’s influence on attractiveness, although recent studies have cast doubt on its importance for attractiveness

  3. What Is Typical Is Good : The Influence of Face Typicality on Perceived Trustworthiness

    NARCIS (Netherlands)

    Sofer, Carmel; Dotsch, Ron|info:eu-repo/dai/nl/328554197; Wigboldus, Daniel H J; Todorov, Alexander

    2015-01-01

    The role of face typicality in face recognition is well established, but it is unclear whether face typicality is important for face evaluation. Prior studies have focused mainly on typicality’s influence on attractiveness, although recent studies have cast doubt on its importance for attractiveness

  4. [Standardization of the Test Your Memory and evaluation of their concordance with the outcome of the psychometric examination].

    Science.gov (United States)

    Ferrero-Arias, J; Turrión-Rojo, M A

    2016-05-01

    To explore the relationship between scores on the Test Your Memory (TYM) battery and findings from a more exhaustive neurocognitive assessment. The TYM and fourteen psychometric tests were administered to 84 subjects aged 50 or older who attended an outpatient neurology clinic due to cognitive symptoms. Each patient's cognitive state was determined independently from his/her score on the TYM (CDR 0, n=25; CDR 0.5, n=45; CDR 1, n=14). We analysed concurrent validity of TYM scores and results from the psychometric tests, as well as the degree of concordance between the two types of measurement, by contrasting normalised data from each instrument. Although the intraclass correlation coefficient was 0.67 (confidence interval 95%, 0.53-0.77), analysis of the Bland-Altman plot and the curve on the survival-agreement plot (Luiz et al. method) demonstrates that the individual distances between the two methods exhibit excessive dispersion from a clinical viewpoint. TYM-based predictions of the mean z-score on psychometric tests differed substantially from real results in 30% of the subjects. Concordance of 95% can only be achieved by accepting absolute inter-instrument differences of up to 0.87 as identical values. Furthermore, the TYM underestimates cognitive performance for low values and overestimates it for high values. The TYM is a cognitive screening test which should not be used to predict results on psychometric tests or to detect cognitive changes in clinical trials. Copyright © 2014 Sociedad Española de Neurología. Published by Elsevier España, S.L.U. All rights reserved.

  5. Typical Women Figures in Hemingway's Fictional World

    Institute of Scientific and Technical Information of China (English)

    杨春会; 范璐

    2008-01-01

    Ernest Hemingway is widely regarded as a giant figure in American literature, but meantime he is often criticized for his prejudice against women. However, whether Ernest Hemingway is a misogynist writer or not, I believe is largely depended on readers' comprehension of his works. This paper launched an interesting study on typical women characters in Hemingway's fictional world. The study also reveals that fact that far from being a misogynist writer, Hemingway shows great concern to women as a group. Not only did he own strong insight on women but also expressed his sympathy towards women.

  6. Youth spare time: Typical patterns of behavior

    Directory of Open Access Journals (Sweden)

    Stepanović Ivana

    2009-01-01

    Full Text Available In this research we have tried to identify typical patterns of young people's behavior in their spare time and to use these patterns in order to group our subjects regarding their interests and preferences. Main-component analysis showed that it was possible to find different patterns of secondary school students' behavior in spare time as well as that the identified models could be the criteria for grouping them. Five patterns have been identified describing youth orientations towards their free time: academic orientation, orientation towards sports, orientation towards entertainment, orientation towards spending time going out and orientation towards music and computers.

  7. A Psychoanalytic Approach to Typical American

    Institute of Scientific and Technical Information of China (English)

    赵磊

    2015-01-01

    Typical American is the representative work of Gish Jen, a famous Chinese American woman writer. This novel is based on the three youth, Ralph, Theresa, and Helen who came to America to study and then became American citizens. This thesis tries to analyze the special psychological state of them from the perspective of psychoanalysis according to Freud 's psychoanalytic theo-ry. Through the writing of this thesis, the author regards that their specific psychoanalytic state is a group features. To learn these special features can help us have a good understanding of people coming from different cultural backgrounds.

  8. Establishing the psychometric properties of constructs in a community-based participatory research conceptual model.

    Science.gov (United States)

    Oetzel, John G; Zhou, Chuan; Duran, Bonnie; Pearson, Cynthia; Magarati, Maya; Lucero, Julie; Wallerstein, Nina; Villegas, Malia

    2015-01-01

    The purpose of this study is to establish the psychometric properties of 22 measures from a community-based participatory research (CBPR) conceptual model. The design of this study was an online, cross-sectional survey of academic and community partners involved in a CPBR project. CPBR projects (294) in the United States with federal funding in 2009. Of the 404 academic and community partners invited, 312 (77.2%) participated. Of the 200 principal investigators/project directors invited, 138 (69.0%) participated. Twenty-two measures of CBPR context, group dynamics, methods, and health-related outcomes were examined. Confirmatory factor analysis to establish factorial validity and Pearson correlations to establish convergent and divergent validity were used. Confirmatory factor analysis demonstrated strong factorial validity for the 22 constructs. Pearson correlations (p < .001) supported the convergent and divergent validity of the measures. Internal consistency was strong, with 18 of 22 measures achieving at least a .78 Cronbach α. CBPR is a key approach for health promotion in underserved communities and/or communities of color, yet the basic psychometric properties of CBPR constructs have not been well established. This study provides evidence of the factorial, convergent, and discriminant validity and the internal consistency of 22 measures related to the CBPR conceptual model. Thus, these measures can be used with confidence by both CBPR practitioners and researchers to evaluate their own CBPR partnerships and to advance the science of CBPR.

  9. Identifying vulnerability in grief: psychometric properties of the Adult Attitude to Grief Scale.

    Science.gov (United States)

    Sim, Julius; Machin, Linda; Bartlam, Bernadette

    2014-05-01

    Grief is a reaction to a significant loss that can profoundly affect all aspects of life and capacity to function well. The consequences can vary from severe psychological distress through to physical disturbances and significant social problems. This study sought to identify a measure of vulnerability in grief, by examining the psychometric properties of the Adult Attitude to Grief (AAG) scale in a sample of 168 people seeking help in their bereavement. The factor structure of the scale, its internal consistency, its construct validity and optimum classification cutoffs were tested. Confirmatory factor analysis broadly supported the factor structure of the AAG, but identified one item that could profitably be reworded. Internal consistency of the three subscales was acceptable. Construct validity and discriminative validity were supported by correlations with allied constructs (depression and anxiety) and a significant difference between scores for clients with Prolonged Grief Disorder and those without. A correlation with counsellors' own clinical ratings of vulnerability demonstrated criterion-related validity of the AAG. Using receiver operating characteristic methods, optimum cutoff scores on the scale were identified for the classification of different levels of vulnerability. The AAG was found to be a psychometrically promising tool for identifying vulnerability in grief.

  10. Psychometric Characteristics of Croatian Version of the Daily Spiritual Experience Scale

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    Željko Rakošec

    2015-06-01

    Full Text Available Background: The Daily Spiritual Experience Scale (DSES has been developed through extensive and qualitative research. Numerous studies have confirmed the reliability and validity of the DSES among different populations. Most of the studies have shown association of the DSES with physical and psychological well-being. Purpose: The current study aimed to evaluate the psychometric properties of the DSES in the Croatian population. Method: The 16-item scale was translated through standard translation/back-translation procedures. The scale was afterwards applied to a sample of 535 test subjects (49% men and 51% women, mean age 42.6 years. Results: The coefficient of reliability (Cronbach alpha = 0.945 is very high. The coefficients of discriminant validity were satisfactory for 15 items, whereas only one item (14 has a coefficient of less than 0.30. The factor analysis after oblique rotation resulted in two related factors: the relationship with God and relationship with others. Using these two factors explained the 66.1% of the variance. Conclusion: Based on the data, it can be concluded that DSES has satisfactory psychometric characteristics and can be applied to the Croatian population, but its correlation with other religious and non-religious constructs should be verified in further research.

  11. Relation between Visual Acuity and Slope of Psychometric Function in Young Adults

    Directory of Open Access Journals (Sweden)

    Tomoki Tokutake

    2011-05-01

    Full Text Available Mita et al. (2010 devised a technique of comparing a visual acuity (VA change in an individual with more accurate VA than conventional VA tests by significant difference examined logarithmic (Log VA ± standard deviation (SD. Using this technique, in this study, we examined a relation between VA and the slope of the psychometric function in normal young subjects. Six occlusion foil conditions were employed (1.0, 0.8, 0.6, 0.4, 0.1 and without the foil under a full refractive correction. Ten normal young adults (22.8 years old on average who have no ophthalmologic disease except ametropia participated in the measurement. The experiment was carried out with the constant method, a series of ten Landolt rings were used and each ring was presented 20 times randomly in a measurement. A 5.6-inch type of liquid crystal display driven by a computer, which has 1,280×800 pixels spatial resolution, was used to present the stimulus. In the normal young adults, the slope of the psychometric function did not change as the VA change systematically, and there was almost no correlation between them (r = −0.103.

  12. The Safety Attitudes Questionnaire: psychometric properties, benchmarking data, and emerging research

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    Boyden James

    2006-04-01

    Full Text Available Abstract Background There is widespread interest in measuring healthcare provider attitudes about issues relevant to patient safety (often called safety climate or safety culture. Here we report the psychometric properties, establish benchmarking data, and discuss emerging areas of research with the University of Texas Safety Attitudes Questionnaire. Methods Six cross-sectional surveys of health care providers (n = 10,843 in 203 clinical areas (including critical care units, operating rooms, inpatient settings, and ambulatory clinics in three countries (USA, UK, New Zealand. Multilevel factor analyses yielded results at the clinical area level and the respondent nested within clinical area level. We report scale reliability, floor/ceiling effects, item factor loadings, inter-factor correlations, and percentage of respondents who agree with each item and scale. Results A six factor model of provider attitudes fit to the data at both the clinical area and respondent nested within clinical area levels. The factors were: Teamwork Climate, Safety Climate, Perceptions of Management, Job Satisfaction, Working Conditions, and Stress Recognition. Scale reliability was 0.9. Provider attitudes varied greatly both within and among organizations. Results are presented to allow benchmarking among organizations and emerging research is discussed. Conclusion The Safety Attitudes Questionnaire demonstrated good psychometric properties. Healthcare organizations can use the survey to measure caregiver attitudes about six patient safety-related domains, to compare themselves with other organizations, to prompt interventions to improve safety attitudes and to measure the effectiveness of these interventions.

  13. Psychometric Evaluation of the Chinese Version of the Patient Perceptions of Empowerment Scale (PPES)

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    Lin, Sieh-Hwa

    2014-01-01

    Objectives. To evaluate the psychometric properties of the Chinese version of the Patient Perceptions of Empowerment Scale (PPES) and to perform a cross-cultural validity assessment. Methods. In this cross-sectional survey, 554 inpatients in three general hospitals in northern Taiwan were recruited. Principal component analysis was used to examine the factor structure of the scale. Confirmatory factor analyses were conducted on the measurement model of the Chinese version of the PPES. Results. Confirmatory factor analyses supported the presence of a second-order four-factor model (information, decision, individual, and self-management) of the Chinese version of the PPES when used with a Taiwanese inpatient population. The results indicate that the 11-item, second-order, four-factor Chinese version of the PPES provided best goodness-of-fit for the data in this study. Conclusion. The 11-item four-factor Chinese version of the PPES is a self-completion scale. This study demonstrated that the Chinese version of the PPES is a reliable and valid self-report instrument for the assessment of patient perceptions of empowerment in clinical practice. Further adaptation and evaluation of the scale will hopefully stimulate further studies on PPES in the fields of psychometrics in Taiwan. PMID:24971354

  14. Psychometric evaluation of dietary habits questionnaire for type 2 diabetes mellitus

    Science.gov (United States)

    Sami, W.; Ansari, T.; Butt, N. S.; Hamid, M. R. Ab

    2017-09-01

    This research evaluated the psychometric properties of English version of dietary habits questionnaires developed for type 2 diabetic patients. There is scarcity of literature about availability of standardized questionnaires for assessing dietary habits of type 2 diabetics in Saudi Arabia. As dietary habits vary from country to country, therefore, this was an attempt to develop questionnaires that can serve as a baseline. Through intensive literature review, four questionnaires were developed / modified and subsequently tested for psychometric properties. Prior to pilot study, a pre-test was conducted to evaluate the face validity and content validity. The pilot study was conducted from 23 October – 22 November, 2016 to evaluate the questionnaires’ reliability and validity. Systematic random sampling technique was used to collect the data from 132 patients by direct investigation method. Questionnaires assessing diabetes mellitus knowledge (0.891), dietary knowledge (0.869), dietary attitude (0.841) and dietary practices (0.874) had good internal consistency reliability. Factor analysis conducted on dietary attitude questionnaire showed a valid 5 factor solution. Directions of loadings were positive and free from factorial complexity. Relying on the data obtained from type 2 diabetics, these questionnaires can be considered as reliable and valid for the assessment of dietary habits in Saudi Arabia and neighbouring Gulf countries population.

  15. Translation and validation of Convergence Insufficiency Symptom Survey (CISS to Portuguese - psychometric results

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    Catarina Tavares

    2014-01-01

    Full Text Available Purpose: Translate and adapt the Convergence Insuficiency Symptom Survey (CISS questionnaire to the Portuguese language and culture and assess the psychometric properties of the translated questionnaire (CISSvp. Methods: The CISS questionnaire was adapted according to the methodology recommended by some authors. The process involved two translations and back-translations performed by independent evaluators, evaluation of these versions, preparation of a synthesis version and its pre-test. The final version (CISSvp was applied in 70 patients (21.79 ± 2.42 years students in higher education, and at two different times, by two observers, to assess its reliability. Results: The results showed good internal consistency of the CISSvp (Cronbach's alpha - α=0.893. The test re-test revealed an average of the differences between the first and second evaluation of 0.75 points (SD ± 3.53, which indicates a minimum bias between the two administrations. The interrater reliability assessed by intraclass correlation coefficient ranged from 0.880 to 0.952, revealing that the CISSvp represents an appropriate tool for measuring the visual discomfort associated with near vision tasks with a high level of reproducibility. Conclusions: The CISS Portuguese version, showed good psychometric properties and has been sown to be applicable to the Portuguese population, to quantify the visual discomfort associated with near vision, in higher education students.

  16. Psychometric properties of the Chinese craving beliefs questionnaire for heroin abusers in methadone treatment

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    Liu Yi-Lien

    2011-03-01

    Full Text Available Abstract Background This paper reports the psychometric properties of the Chinese version of Craving Beliefs Questionnaire (CCBQ, an easy-to-administer assessment instrument of measurement of craving beliefs for heroin abusers. Methods Participants were 445 heroin abusers from four methadone clinics in Northern Taiwan. Fifty-one of the participants were tested twice within a two-week period at a different hospital to examine test-retest reliability. Results Three-factor solution using principal component analysis was identified in the CCBQ: will power, compulsive behavior, and negative coping, accounting for 54.6% of the variance. Internal consistency analysis indicated that the three factors have strong reliability, with Cronbach alphas ranging from .81 to .92. The test-retest ICC coefficient is .80. The test-retest coefficients for the subscales will power, compulsive behavior, and negative coping are .76, .51, and .64, respectively. Overall, the data show that the CCBQ has acceptable reliability and validity, demonstrating that it can be a research instrument for assessing heroin craving beliefs. Conclusions The psychometric properties of the CCBQ seem promising for both research and clinical purposes, and the scale thus deserves further refinement and validation with heroin abusers.

  17. Psychometric Evaluation of the Chinese Version of the Patient Perceptions of Empowerment Scale (PPES

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    Mei-Yu Yeh

    2014-01-01

    Full Text Available Objectives. To evaluate the psychometric properties of the Chinese version of the Patient Perceptions of Empowerment Scale (PPES and to perform a cross-cultural validity assessment. Methods. In this cross-sectional survey, 554 inpatients in three general hospitals in northern Taiwan were recruited. Principal component analysis was used to examine the factor structure of the scale. Confirmatory factor analyses were conducted on the measurement model of the Chinese version of the PPES. Results. Confirmatory factor analyses supported the presence of a second-order four-factor model (information, decision, individual, and self-management of the Chinese version of the PPES when used with a Taiwanese inpatient population. The results indicate that the 11-item, second-order, four-factor Chinese version of the PPES provided best goodness-of-fit for the data in this study. Conclusion. The 11-item four-factor Chinese version of the PPES is a self-completion scale. This study demonstrated that the Chinese version of the PPES is a reliable and valid self-report instrument for the assessment of patient perceptions of empowerment in clinical practice. Further adaptation and evaluation of the scale will hopefully stimulate further studies on PPES in the fields of psychometrics in Taiwan.

  18. Psychometric validation of the Portuguese version of the Neuropathic Pain Symptoms Inventory

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    de Andrade Daniel

    2011-11-01

    Full Text Available Abstract Backgroud It has been shown that different symptoms or symptom combinations of neuropathic pain (NeP may correspond to different mechanistic backgrounds and respond differently to treatment. The Neuropathic Pain Symptom Inventory (NPSI is able to detect distinct clusters of symptoms (i.e. dimensions with a putative common mechanistic background. The present study described the psychometric validation of the Portuguese version (PV of the NPSI. Methods Patients were seen in two consecutive visits, three to four weeks apart. They were asked to: (i rate their mean pain intensity in the last 24 hours on an 11-point (0-10 numerical scale; (ii complete the PV-NPSI; (iii provide the list of pain medications and doses currently in use. VAS and Global Impression of Change (GIC were filled out in the second visit. Results PV-NPSI underwent test-retest reliability, factor analysis, analysis of sensitivity to changes between both visits. The PV-NPSI was reliable in this setting, with a good intra-class correlation for all items. The factorial analysis showed that the PV-NPSI inventory assessed different components of neuropathic pain. Five different factors were found. The PV-NPSI was adequate to evaluate patients with neuropathic pain and to detect clusters of NeP symptoms. Conclusions The psychometric properties of the PV-NPSI rendered it adequate to evaluate patients with both central and peripheral neuropathic pain syndromes and to detect clusters of NeP symptoms.

  19. The AMC Linear Disability Score project in a population requiring residential care: psychometric properties

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    Vermeulen Marinus

    2004-08-01

    Full Text Available Abstract Background Currently there is a lot of interest in the flexible framework offered by item banks for measuring patient relevant outcomes, including functional status. However, there are few item banks, which have been developed to quantify functional status, as expressed by the ability to perform activities of daily life. Method This paper examines the psychometric properties of the AMC Linear Disability Score (ALDS project item bank using an item response theory model and full information factor analysis. Data were collected from 555 respondents on a total of 160 items. Results Following the analysis, 79 items remained in the item bank. The remaining 81 items were excluded because of: difficulties in presentation (1 item; low levels of variation in response pattern (28 items; significant differences in measurement characteristics for males and females or for respondents under or over 85 years old (26 items; or lack of model fit to the data at item level (26 items. Conclusions It is conceivable that the item bank will have different measurement characteristics for other patient or demographic populations. However, these results indicate that the ALDS item bank has sound psychometric properties for respondents in residential care settings and could form a stable base for measuring functional status in a range of situations, including the implementation of computerised adaptive testing of functional status.

  20. The AMC Linear Disability Score project in a population requiring residential care: psychometric properties

    Science.gov (United States)

    Holman, Rebecca; Lindeboom, Robert; Vermeulen, Marinus; de Haan, Rob J

    2004-01-01

    Background Currently there is a lot of interest in the flexible framework offered by item banks for measuring patient relevant outcomes, including functional status. However, there are few item banks, which have been developed to quantify functional status, as expressed by the ability to perform activities of daily life. Method This paper examines the psychometric properties of the AMC Linear Disability Score (ALDS) project item bank using an item response theory model and full information factor analysis. Data were collected from 555 respondents on a total of 160 items. Results Following the analysis, 79 items remained in the item bank. The remaining 81 items were excluded because of: difficulties in presentation (1 item); low levels of variation in response pattern (28 items); significant differences in measurement characteristics for males and females or for respondents under or over 85 years old (26 items); or lack of model fit to the data at item level (26 items). Conclusions It is conceivable that the item bank will have different measurement characteristics for other patient or demographic populations. However, these results indicate that the ALDS item bank has sound psychometric properties for respondents in residential care settings and could form a stable base for measuring functional status in a range of situations, including the implementation of computerised adaptive testing of functional status. PMID:15291958

  1. The standardized psychometric assessment of altered states of consciousness (ASCs) in humans.

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    Dittrich, A

    1998-07-01

    The APZ questionnaire was developed in order to explore hypotheses on ASCs. First -- in a series of 11 experiments using different induction methods on N = 393 healthy subjects -- the hypothesis was tested that ASCs have major dimensions in common irrespective of the mode of their induction. In the International Study on Altered States of Consciousness (ISASC) the external validity of the experimental results was assessed. The ISASC was carried out on a total of N = 1133 subjects in six countries. The main results of the experimental studies were corroborated in the field studies. The results can be summarized as follows: the common denominator of ASCs is described by three oblique dimensions, designated as "Oceanic Boundlessness (OSE)", "Dread of Ego Dissolution (AIA)" and "Visionary Restructuralization (VUS)". The reliability and validity of the scales are satisfactory. Tested versions of the APZ scales are available in English (UK, USA), German, Italian and Portuguese. Psychometrically as yet untested versions exist in Dutch, Finnish, French, Greek, Spanish and Russian. The APZ questionnaire has become the international standard for the assessment of ASCs, thus helping to integrate research. A psychometrically improved version exists in German (OAV questionnaire). The BETA questionnaire, which measures the dimensions "Vigilance Reduction (VIR)" and "Auditive Alteration (AVE)" is also available in German. These dimensions are most likely etiology-dependent.

  2. Deep Acting and Surface Acting Scale (DASAS – Adaptation of the metod and preliminary psychometric properties

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    Maria Finogenow

    2015-07-01

    Full Text Available Background: This article presents the results of the study on the Polish version of the revised Emotional Labor Scale (ELS, developed by Lee and Brotheridge. The ELS measures deep acting and 2 aspects of surface acting (hiding feelings and faking emotions. Material and Methods: Psychometric characteristics of the Polish version of the ELS, named Deep Acting and Surface Acting Scale (DASAS, were analyzed in the preliminary study on 332 people working in various service professions. We verified factor structure of the scale, its reliability, and construct validity (that is, the relationships between its subscales and other measures of workplace functioning. Results: The results indicated that the DASAS has good psychometric properties which are comparable with the characteristics of the original scale. We replicated a 3-factor structure of the scale and confirmed its satisfying internal consistency and construct validity. Conclusions: The preliminary findings suggest that the DASAS is an adequate measure of deep and surface acting. Med Pr 2015;66(3:359–371

  3. Patient-Reported Outcome questionnaires for hip arthroscopy: a systematic review of the psychometric evidence

    Science.gov (United States)

    2011-01-01

    Background Hip arthroscopies are often used in the treatment of intra-articular hip injuries. Patient-reported outcomes (PRO) are an important parameter in evaluating treatment. It is unclear which PRO questionnaires are specifically available for hip arthroscopy patients. The aim of this systematic review was to investigate which PRO questionnaires are valid and reliable in the evaluation of patients undergoing hip arthroscopy. Methods A search was conducted in Pubmed, Medline, CINAHL, the Cochrane Library, Pedro, EMBASE and Web of Science from 1931 to October 2010. Studies assessing the quality of PRO questionnaires in the evaluation of patients undergoing hip arthroscopy were included. The quality of the questionnaires was evaluated by the psychometric properties of the outcome measures. The quality of the articles investigating the questionnaires was assessed by the COSMIN list. Results Five articles identified three questionnaires; the Modified Harris Hip Score (MHHS), the Nonarthritic Hip Score (NAHS) and the Hip Outcome Score (HOS). The NAHS scored best on the content validity, whereas the HOS scored best on agreement, internal consistency, reliability and responsiveness. The quality of the articles describing the HOS scored highest. The NAHS is the best quality questionnaire. The articles describing the HOS are the best quality articles. Conclusions This systematic review shows that there is no conclusive evidence for the use of a single patient-reported outcome questionnaire in the evaluation of patients undergoing hip arthroscopy. Based on available psychometric evidence we recommend using a combination of the NAHS and the HOS for patients undergoing hip arthroscopy. PMID:21619610

  4. Psychometric evaluation of a visual analog scale for the assessment of anxiety

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    Morlock Robert J

    2010-06-01

    Full Text Available Abstract Background Fast-acting medications for the management of anxiety are important to patients and society. Measuring early onset, however, requires a sensitive and clinically responsive tool. This study evaluates the psychometric properties of a patient-reported Global Anxiety - Visual Analog Scale (GA-VAS. Methods Data from a double-blind, randomized, placebo-controlled study of lorazepam and paroxetine in patients with Generalized Anxiety Disorder were analyzed to assess the reliability, validity, responsiveness, and utility of the GA-VAS. The GA-VAS was completed at clinic visits and at home during the first week of treatment. Targeted psychometric analyses—test-retest reliabilities, validity correlations, responsiveness statistics, and minimum important differences—were conducted. Results The GA-VAS correlates well with other anxiety measures, at Week 4, r = 0.60 (p r = 0.74 (p p p p Conclusions The GA-VAS is capable of validly and effectively capturing a reduction in anxiety as quickly as 24 hours post-dose.

  5. The psychometric properties of pain self-efficacy questionnaire in multiple sclerosis patients

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    Seyed Kazem Rasoolzadeh Tabatabaei

    2014-02-01

    Full Text Available Background: Given the importance of pain self-efficacy in adapting to chronic pain, the aim of the present study was to determine the psychometric properties of Pain Self-Efficacy Questionnaire (PSEQ in patients with Multiple Sclerosis (MS. Methods: The sample consisted of 237 patients with MS that were selected through convenience sampling in Isfahan MS Society. The participants completed the Persian version of Pain Self Efficacy Questionnaire (PSEQ and West-Haven Multidimensional Pain Inventory (WHMPI. The factor structure of Pain Self Efficacy Scale was evaluated by exploratory factor analysis. The internal consistency of the questionnaire was measured by Cronbach’s alpha. Spearman-BrownSplit-Half reliability and concurrent validity of this scale were also examined. Results: The findings indicated that the internal consistency of the scale was (a=0.896. Spearman-Brown Split-Half reliability coefficient was equivalent to 0.85. Results of factor analysis indicated a factor called "Pain Self- Efficacy" that accounted for 52.511% of the total variance with minimal factor loading of 0.6. Moreover, the significant correlation between PSEQ and 4 subscales of WHMPI indicated an acceptable concurrent validity for this questionnaire. Conclusion: Findings suggested that Pain Self-Efficacy Questionnaire (PSEQ has appropriate psychometric properties that might be applicable in research and practice with multiple sclerosis patients.

  6. Jefferson Scale of Patient’s Perceptions of Physician Empathy: Preliminary Psychometric Data

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    Kane, Gregory C.; Gotto, Joanne L.; Mangione, Salvatore; West, Susan; Hojat, Mohammadreza

    2007-01-01

    Aim To develop a brief scale for measuring patient’s perceptions of their physician’s empathic engagement and to provide preliminary evidence in support of aspects of the scale’s psychometrics. Method Study comprised 225 patients, out of 436 patients (52% response rate) seen by 166 residents in the internal medicine residency program at the Jefferson Hospital Ambulatory Clinic as part of their ambulatory training at Thomas Jefferson University Hospital. A 5-item questionnaire entitled the Jefferson Scale of Patient’s Perceptions of Physician Empathy was developed and administered to the study participants. Its factor structure, item-total score correlations, and correlations with several relevant criterion measures were examined. Results Factor analysis indicated that the scale was measuring a single factor of emphatic engagement. Item scores and total scores of the Jefferson Scale of Patient’s Perceptions of Physician Empathy yielded significant correlations with the American Board of Internal Medicine patient ratings form and with selected items from other relevant instruments measuring physicians’ humanistic behavior and the appraisal of physicians’ performance. Conclusions A brief scale for assessing physician empathy from the patients’ perspective showed good psychometric characteristics and can be used for the assessment of patient outcomes. PMID:17309143

  7. Psychometric assessment of HIV/STI sexual risk scale among MSM: A Rasch model approach

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    Liu Hui

    2011-10-01

    Full Text Available Abstract Background Little research has assessed the degree of severity and ordering of different types of sexual behaviors for HIV/STI infection in a measurement scale. The purpose of this study was to apply the Rasch model on psychometric assessment of an HIV/STI sexual risk scale among men who have sex with men (MSM. Methods A cross-sectional study using respondent driven sampling was conducted among 351 MSM in Shenzhen, China. The Rasch model was used to examine the psychometric properties of an HIV/STI sexual risk scale including nine types of sexual behaviors. Results The Rasch analysis of the nine items met the unidimensionality and local independence assumption. Although the person reliability was low at 0.35, the item reliability was high at 0.99. The fit statistics provided acceptable infit and outfit values. Item difficulty invariance analysis showed that the item estimates of the risk behavior items were invariant (within error. Conclusions The findings suggest that the Rasch model can be utilized for measuring the level of sexual risk for HIV/STI infection as a single latent construct and for establishing the relative degree of severity of each type of sexual behavior in HIV/STI transmission and acquisition among MSM. The measurement scale provides a useful measurement tool to inform, design and evaluate behavioral interventions for HIV/STI infection among MSM.

  8. Evaluation of the psychometric properties of the Gambling Motives Questionnaire in Argentinian young people and adults.

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    Pilatti, Angelina; Tuzinkievich, Francisco Benjamín

    2015-03-01

    The purpose of the present study was to evaluate, in a sample of young people and adults from the general community, the psychometric properties of two models developed for assessing gambling motives (Gambling Motives Questionnaire and Gambling Motives Questionnaire-Financial; GMQ and GMQ-F). Specifically, a confirmatory factor analysis was carried out to assess the fit of the two models to the data. Internal consistency of the scales was then analyzed. A multiple regression analysis was conducted to analyze the utility of gambling motives for predicting levels of gambling problem severity. The final sample was made up of 341 young people and adults, aged 18 to 60, who reported any gambling activity during the last six months. The maximum likelihood (ML) method with robust Satorra-Bentler correction was used to evaluate the fit of the models to the data. The results indicated that both the GMQ and the GMQ-F models show a reasonable fit to the data. All scales have adequate internal consistency values. Enhancement, coping and financial gambling motives were associated with greater severity of gambling problems. Overall, the results indicate that both models have adequate psychometric properties, though the GMQ-F appears to provide a more comprehensive alternative for assessing gambling motives in the general community.

  9. On Typicality in Nonequilibrium Steady States

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    Evans, Denis J.; Williams, Stephen R.; Searles, Debra J.; Rondoni, Lamberto

    2016-08-01

    From the statistical mechanical viewpoint, relaxation of macroscopic systems and response theory rest on a notion of typicality, according to which the behavior of single macroscopic objects is given by appropriate ensembles: ensemble averages of observable quantities represent the measurements performed on single objects, because " almost all" objects share the same fate. In the case of non-dissipative dynamics and relaxation toward equilibrium states, " almost all" is referred to invariant probability distributions that are absolutely continuous with respect to the Lebesgue measure. In other words, the collection of initial micro-states (single systems) that do not follow the ensemble is supposed to constitute a set of vanishing, phase space volume. This approach is problematic in the case of dissipative dynamics and relaxation to nonequilibrium steady states, because the relevant invariant distributions attribute probability 1 to sets of zero volume, while evolution commonly begins in equilibrium states, i.e., in sets of full phase space volume. We consider the relaxation of classical, thermostatted particle systems to nonequilibrium steady states. We show that the dynamical condition known as Ω T-mixing is necessary and sufficient for relaxation of ensemble averages to steady state values. Moreover, we find that the condition known as weak T-mixing applied to smooth observables is sufficient for ensemble relaxation to be independent of the initial ensemble. Lastly, we show that weak T-mixing provides a notion of typicality for dissipative dynamics that is based on the (non-invariant) Lebesgue measure, and that we call physical ergodicity.

  10. Psychometric properties of the positive and negative affect schedule (PANAS) in a heterogeneous sample of substance users

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    Serafini, Kelly; Malin-Mayor, Bo; Nich, Charla; Hunkele, Karen; Carroll, Kathleen M.

    2016-01-01

    Background The Positive and Negative Affect Schedule (PANAS) is a widely used measure of affect, and a comprehensive psychometric evaluation has never been conducted among substance users. Objective To examine the psychometric properties of the PANAS in a sample of outpatient treatment substance users. Methods We used pooled data from four randomized clinical trials (N = 416; 34% female, 48% African American). Results A confirmatory factor analysis indicated adequate support for a two-factor correlated model comprised of Positive Affect and Negative Affect with correlated item errors (Comparative Fit Index = .93, Root Mean Square Error of Approximation = .07, χ2 = 478.93, df = 156). Cronbach’s α indicated excellent internal consistency for both factors (.90 and .91, respectively). The PANAS factors had good convergence and discriminability (Composite Reliability >.7; Maximum Shared Variance < Average Variance Extracted). A comparison from baseline to Week 1 indicated acceptable test-retest reliability (Positive Affect = .80, Negative Affect = .76). Concurrent and discriminant validity were demonstrated with correlations with the Brief Symptom Inventory and Addiction Severity Index. The PANAS scores were also significantly correlated with treatment outcomes (e.g., Positive Affect was associated with the maximum days of consecutive abstinence from primary substance of abuse, r = .16, p = .001). Conclusion Our data suggest that the psychometric properties of the PANAS are retained in substance using populations. Although several studies have focused on the role of Negative Affect, our findings suggest that Positive Affect may also be an important factor in substance use treatment outcomes. PMID:26905228

  11. Psychometric Properties of the Diabetes Management Self-Efficacy Scale in Korean Patients with Type 2 Diabetes

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    Eun-Hyun Lee

    2015-01-01

    Full Text Available Objectives. The aims of this study were to perform a cultural translation of the DMSES and evaluate the psychometric properties of the translated scale in a Korean population with type 2 diabetics. Methods. This study was conducted in patients with diabetes recruited from university hospitals. The first stage of this study involved translating the DMSES into Korean using a forward- and backward-translation technique. The content validity was assessed by an expert group. In the second stage, the psychometric properties of the Korean version of the DMSES (K-DMSES were evaluated. Results. The content validity of the K-DMSES was satisfactory. Sixteen-items clustered into four-subscales were extracted by exploratory factor analysis, and supported by confirmatory factor analysis. The construct validity of the K-DMSES with the Summary of Diabetes Self-Care Activities scale was satisfactory (r=0.50, P<0.001. The Cronbach’s alpha and intraclass correlation coefficient were 0.92 and 0.85 (P<0.001; 95% CI=0.75–0.91, respectively, which indicate excellent internal consistency reliability and test-retest reliability. Conclusions. The K-DMSES is a brief instrument that has demonstrated good psychometric properties. It is therefore feasible to use in practice, and is ready for use in clinical research involving Korean patients with type 2 diabetes.

  12. Measuring workplace trauma response in Australian paramedics: an investigation into the psychometric properties of the Impact of Event Scale

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    Hogan N

    2015-12-01

    Full Text Available Nicola Hogan,1 Shane Costello,1 Malcolm Boyle,2 Brett Williams2 1Faculty of Education, Monash University, Clayton, VIC, Australia; 2Department of Community Emergency Health and Paramedic Practice, Monash University, Frankston, VIC, Australia Introduction: Investigation into the psychological effects of violence toward health care workers and its associated trauma is increasing. The Impact of Event Scale (IES provides a measure of current, subjective, emotional distress symptomatic of a specific traumatic event. However, its validity among paramedics is largely unknown. Problem: The purpose of this study was to investigate the psychometric properties and factor structure of the IES with a sample of Australian paramedics. Methods: The study aimed to investigate the psychometric properties and factor structure of the 15-item IES with a sample of Australian paramedics using Exploratory Factor Analysis with model fit statistics as found in confirmatory analysis. Results: Maximum Likelihood Factor Analysis with Varimax rotation supported the hypothesis that a two-factor solution would provide the best fit of the data. Procrustes rotation provided further support for this hypothesis indicating that the factors, labeled “Intrusion” and “Avoidance”, as well as the individual items of the 12-item final model, were a good fit to an ideal solution. Conclusion: The revision of the scale has improved its validity for use in the general population of paramedics, improving the potential for its use in trauma-related research. Keywords: impact of event scale, psychometrics, paramedics, occupational violence, PTSD

  13. A pilot evaluation of a computer-based psychometric test battery designed to detect impairment in patients with cirrhosis

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    Cook, Nicola A; Kim, Jin Un; Pasha, Yasmin; Crossey, Mary ME; Schembri, Adrian J; Harel, Brian T; Kimhofer, Torben; Taylor-Robinson, Simon D

    2017-01-01

    Background Psychometric testing is used to identify patients with cirrhosis who have developed hepatic encephalopathy (HE). Most batteries consist of a series of paper-and-pencil tests, which are cumbersome for most clinicians. A modern, easy-to-use, computer-based battery would be a helpful clinical tool, given that in its minimal form, HE has an impact on both patients’ quality of life and the ability to drive and operate machinery (with societal consequences). Aim We compared the Cogstate™ computer battery testing with the Psychometric Hepatic Encephalopathy Score (PHES) tests, with a view to simplify the diagnosis. Methods This was a prospective study of 27 patients with histologically proven cirrhosis. An analysis of psychometric testing was performed using accuracy of task performance and speed of completion as primary variables to create a correlation matrix. A stepwise linear regression analysis was performed with backward elimination, using analysis of variance. Results Strong correlations were found between the international shopping list, international shopping list delayed recall of Cogstate and the PHES digit symbol test. The Shopping List Tasks were the only tasks that consistently had P values of battery correlated very strongly with the digit symbol component of PHES in discriminating severity of HE. These findings would indicate that components of the current PHES battery with the international shopping list tasks of Cogstate would be discriminant and have the potential to be used easily in clinical practice. PMID:28919805

  14. Psychometric evaluation of the Writing-To-Learn Attitude Survey.

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    Schmidt, Lee A

    2004-10-01

    The Writing-To-Learn Attitude Survey (WTLAS) was developed to measure the effects of using writing-to-learn activities in the classroom, but adequate psychometric data have not been reported for the measure. Using the pretest scores from 149 basic and RN-to-BSN nursing students enrolled in a Nursing Management and Leadership course, the reliability and validity of the WTLAS were evaluated. The initial 30-item measure demonstrated acceptable reliability, but the item intercorrelations suggested revision of the subscales was appropriate. After exploratory factor analyses, the WTLAS was revised to 21 items and consists of two factors: Apprehensions about Writing Abilities and Perceived Benefits of Writing-To-Learn Activities. Both subscales possess acceptable internal consistency reliability and conceptually sound, significant correlations with a separate measure of writing apprehension. The revised WTLAS appears to have adequate psychometric properties for further use in the evaluation of students' perceptions of writing-to-learn activities.

  15. Testing psychometric properties of the 30-item general health questionnaire.

    Science.gov (United States)

    Klainin-Yobas, Piyanee; He, Hong-Gu

    2014-01-01

    This study aimed to evaluate the psychometric properties of the General Health Questionnaire (GHQ-30) given conflicting findings in the literature. A cross-sectional, nonexperimental research was used with a convenience sample of 271 American female health care professionals. Data were collected by using self-reported questionnaires. A series of exploratory factor analyses (EFAs), confirmatory factor analyses (CFAs), and structural equation modeling (SEM) were performed to examine underlying dimensions of the GHQ-30. Results from EFAs and CFAs revealed the three-factor composition (positive affect, anxiety, and depressed mood). All factor loadings were statistically significant, and one pair of error variance was allowed to be correlated. All factors contained questionnaire items with acceptable face validity and demonstrated good internal consistency reliability. Results from SEM further confirmed underlying constructs of the scale. To our knowledge, this is the first study that extensively tested the psychometric properties of the GHQ-30, taking both statistical and substantive issues into consideration.

  16. Psychometric Evaluation of the Service-Learning in Nursing Inventory.

    Science.gov (United States)

    Nickitas, Donna M; Fealy, Gerard M; De Natale, Mary L

    The aim was to develop an instrument to assess undergraduate nursing students' experience of service-learning to reveal benefits and identify service-learning as a professional value that leads to civic and social responsibility. Service-learning is a teaching and learning approach that integrates academic learning with experiential community-centered foci. It provides structured opportunities for reflection on broader social and cultural dimensions of health. There is no valid and reliable instrument to measure service-learning experience of nursing students. A psychometric evaluation was conducted through item analysis, validity, and reliability. Face validity agreement was 80 percent; the content validity index was adjusted until 1 was achieved for each item. Two factors explained 58.64 percent of the total variance. Cronbach's α was .940 for the skills subscale and .932 for the personal insight subscale. The inventory demonstrated strong psychometric properties. Future research should focus on replication on diverse populations.

  17. Psychometric Properties of the Nurses' Environmental Awareness Tool.

    Science.gov (United States)

    Schenk, Elizabeth; Corbett, Cynthia F; Barbosa-Leiker, Celestina; Postma, Julie; Butterfield, Patricia

    2016-01-01

    Nurses are committed to practice in an environmentally safe and healthy manner. However, nursing practice contributes significant negative impacts to the natural environment. We analyzed the psychometric properties of the Nurses Environmental Awareness Tool (NEAT), composed of 6 subscales, measuring awareness of environmental impacts and their health risks and ecological behaviors at work and home. The NEAT was given to 689 nurses via online survey software. Exploratory factor analyses and Cronbach's alpha were examined for each of the 6 subscales. The 6 subscales resulted in one-factor models with items demonstrating adequate reliability (α > .67). The NEAT is a psychometrically sound scale to measure nurses' awareness and behavior related to environmental impacts of nursing practice.

  18. Psychometric Properties and Structures of Passionate and Companionate Love

    Directory of Open Access Journals (Sweden)

    Victor Karandashev

    2016-06-01

    Full Text Available After many decades of romantic relationship research, there is a new focus on a multidimensional model of love. This empirical study examines the multidimensionality and psychometrics of Passionate and Companionate love, based on an extensive study of 413 participants using Multidimensional Love Scale (MLS. A new statistical approach employed in this study explores the typology and structure of love. The statistical approach included the combination of Two-Step Cluster Analysis of cases and Principle Component Analysis of dimensions while using centered variable scores. The results reveal a typology of love based on its multidimensional structure. Further analysis revealed two main types of love: Passionate and Companionate, both containing several factors allowing for interpretation of their multidimensional structures. The MLS subscales and detailed psychometric analysis measuring specific love dimensions are incorporated to allow further research in other studies.

  19. The psychometric testing of the Nursing Teamwork Survey in Iceland.

    Science.gov (United States)

    Bragadóttir, Helga; Kalisch, Beatrice J; Smáradóttir, Sigríður Bríet; Jónsdóttir, Heiður Hrund

    2016-06-01

    The purpose of this study was to test the psychometric properties of the Nursing Teamwork Survey-Icelandic (NTS-Icelandic), which was translated from US English to Icelandic. The Nursing Teamwork Survey, with 33 items, measures overall teamwork and five factors of teamwork: trust, team orientation, backup, shared mental models, and team leadership. The psychometric testing of the NTS-Icelandic was carried out on data from a pilot study and a national study. The sample for a pilot study included 123 nursing staff from five units, and the sample for a national study included 925 nursing staff from 27 inpatient units. The overall test-retest intraclass correlation coefficient in the pilot study was 0.693 (lower bound = 0.498, upper bound = 0.821) (p teamwork. The NTS-Icelandic tested valid and reliable in this study. Study findings support further use of the Nursing Teamwork Survey internationally.

  20. Development and psychometric testing of the nursing culture assessment tool.

    Science.gov (United States)

    Kennerly, Susan M; Yap, Tracey L; Hemmings, Annette; Beckett, Gulbahar; Schafer, John C; Borchers, Andrea

    2012-11-01

    A valid and reliable nursing culture assessment tool aimed at capturing general aspects of nursing culture is needed for use in health care settings to assess and then reshape indicated troubled areas of the nursing culture. This article summarizes the Nursing Culture Assessment Tool's (NCAT) development and reports on a cross-sectional, exploratory investigation of its psychometric properties. The research aims were to test the tool's psychometric properties; discover its dimensionality; and refine the item structure to best represent the construct of nursing culture, an occupational subset of organizational culture. Empirical construct validity was tested using a sample of licensed nurses and nursing assistants (n = 340). Exploratory and confirmatory factor analysis (CFA) and logistical regression yielded a 6-factor, 19-item solution. Evidence supports the tool's validity for assessing nursing culture as a basis for shaping the culture into one that supports change, thereby accelerating, improving, and advancing nursing best practices and care outcomes.

  1. Family Self-Efficacy for Diabetes Management: Psychometric Testing.

    Science.gov (United States)

    Mcewen, Marylyn M; Pasvogel, Alice; Murdaugh, Carolyn L

    2016-01-01

    Type 2 diabetes mellitus (T2DM) self-management among Hispanic adults occurs in a family context. Self-efficacy (SE) affects T2DM self-management behaviors; however, no instruments are available to measure family diabetes self-efficacy. The study's purpose was to test the psychometric properties of the Family Self-Efficacy for Diabetes Scale (FSE). Family members (n = 113) of adults with T2DM participated. Psychometric analysis included internal consistency reliability and concurrent and construct validity. Internal consistency reliability was .86. Items loaded on 2 factors, Family SE for Supporting Healthy Behaviors and Family SE for Supporting General Health, accounting for 71% of the variance. FSE correlated significantly with 3 diabetes-related instruments. The FSE is a reliable and valid instrument. Further testing is needed in diverse populations and geographic areas.

  2. Psychometric properties of the STAT for early autism screening.

    Science.gov (United States)

    Stone, Wendy L; Coonrod, Elaine E; Turner, Lauren M; Pozdol, Stacie L

    2004-12-01

    The STAT is an interactive screening measure for autism that assesses behaviors in the areas of play, communication, and imitation skills. In Study 1, signal detection procedures were employed to identify a cutoff score for the STAT using developmentally matched groups of 2-year-old children with autism and with nonspectrum disorders. The resulting cutoff yielded high sensitivity, specificity, and predictive values for the development sample as well as for an independent validation sample. Study 2 examined psychometric properties of the STAT and revealed acceptable levels of interrater agreement, test-retest reliability, and agreement between STAT risk category and ADOS-G classification. The STAT demonstrates strong psychometric properties and shows promising utility as a Level 2 screening measure for autism.

  3. The Dutch Claustrophobia Questionnaire: psychometric properties and predictive validity.

    Science.gov (United States)

    Van Diest, Ilse; Smits, Dirk; Decremer, Davina; Maes, Lori; Claes, Laurence

    2010-10-01

    Fear of suffocation and fear of restriction are thought to underlie claustrophobia and can be assessed with the Claustrophobia Questionnaire (CLQ; Radomsky et al., 2001). A first study tested the psychometric properties of a Dutch version of the CLQ. Students (N=363) completed a Dutch translation of the CLQ and a set of other questionnaires assessing other specific fears, anxiety or depression. Results confirmed the two-factor structure and showed that the Dutch version of the CLQ has good psychometric properties. A second study tested the predictive validity of the Dutch CLQ. Participants (N=23) were exposed each to nine claustrophobic situations with elements of suffocation, restriction or both. The Dutch CLQ was found to be a significant predictor of fear and respiratory reactivity during claustrophobic exposure. It can be concluded that the Dutch version of the CLQ is a reliable and valid instrument to assess claustrophobic fear. Copyright 2010 Elsevier Ltd. All rights reserved.

  4. Analysis of the Psychometric Properties of a Parental Alienation Scale

    Directory of Open Access Journals (Sweden)

    Paula Inez Cunha Gomide

    Full Text Available Abstract The development of forensic evaluation scales is fundamental. This study's purpose was to explore the psychometric properties of a parental alienation scale. Forensic technicians completed 193 scales concerning parents involved in a lawsuit: 48 families with at least one parent indicated as the alienator (group A and 48 families with no parental alienation claim (group B. The scale consisted of five categories and 69 items: denying access to the child; derogatory comparisons; emotional manipulation; behavior of parent and child during assessment. The results show Cronbach's alpha = .965 and split-half = .745; KMO = .884 and Bartlett's sphericity test ( p < .001. Concurrent criterion validity applied to data showed that the scale is able to distinguish between the alienator and target parent. The results showed significant and consistent standards in the instrument's psychometric characteristics.

  5. Measuring Orthorexia Nervosa: Psychometric Limitations of the ORTO-15.

    Science.gov (United States)

    Roncero, María; Barrada, Juan Ramón; Perpiñá, Conxa

    2017-09-20

    Orthorexia nervosa has recently been defined as excessive preoccupation with healthy eating, causing significant nutritional deficiencies and social and personal impairments. The ORTO-15 is the most widely used instrument to evaluate orthorexia nervosa, although previous studies obtained inconsistent results about its psychometric properties, and there are no data on the Spanish version. Thus, the main objective of the present study was to analyze the psychometric properties of the Spanish adaptation of the ORTO-15. In order to cross-validate the results, two independent samples were used (Sample 1: n = 807, 74.1% women; Sample 2: n = 242, 63.2% women). The results did not support the original recoding and reversal of the items; thus, the original scores were maintained. The analysis of the internal structure showed that the best interpretable solution was unidimensional, and due to low loadings, four items were removed. The internal consistency (α = .74) and temporal stability (r = .92; p orthorexia nervosa.

  6. Psychometric Evaluation of the Brief Acculturation Scale for Hispanics

    OpenAIRE

    Mills, Sarah D; Malcarne, Vanessa L.; Fox, Rina S.; Sadler, Georgia Robins

    2014-01-01

    This study examined the psychometric properties of the Brief Acculturation Scale for Hispanics (BASH), a four-item, language-based measure of acculturation. Participants in the study were 435 Hispanic Americans from a large metropolitan area with English or Spanish language preference. Internal consistency reliability was strong in both language-preference groups. Multiple-group confirmatory factor analysis was used to evaluate the structural validity of the measure. A unidimensional factor s...

  7. Risk perception of festival audience: an application of psychometric paradigm

    OpenAIRE

    Ahi, Julide Ceren

    2013-01-01

    The purpose of this study was to investigate the perceived risk level indicated by audiences for six contemporary hazards in an open door music festival, seeing as it is an overlooked issue in the literature. In order to measure the risk perceptions of participants The Psychometric Paradigm Model was utilized together with the perceived controllability arguments of Optimism Bias Theory. The data was collected from 230 participants of Landstreff 2013 Stavanger through online survey in coope...

  8. Risk Perception and Terrorism: Applying the Psychometric Paradigm

    OpenAIRE

    Jenkin, Clinton M.

    2006-01-01

    This article appeared in Homeland Security Affairs (July 2006), v.2 no.2 While expert risk analyses are based on calculations of probability and damage, public estimates of risk are more often based on qualitative factors. It is important to understand how the public, not just homeland security experts, perceive and react to the threat of terrorism. Risk perception research in general, and the psychometric paradigm in particular, offer a basis for empirically examining attitudes toward pot...

  9. Psychometric properties of 2-minute walk test: a systematic review.

    Science.gov (United States)

    Pin, Tamis W

    2014-09-01

    To systematically review the psychometric evidence on the 2-minute walk test (2MWT). Electronic searches of databases including MEDLINE, CINAHL, Academic Search Premier, SPORTDiscus, PsycINFO, EMBASE, the Cochrane Library, and DARE were done until February 2014 using a combination of subject headings and free texts. Studies were included if psychometric properties of the 2MWT were (1) evaluated; (2) written as full reports; and (3) published in English language peer-reviewed journals. A modified consensus-based standard for the selection of health measurement instruments checklist was used to rate the methodological quality of the included studies. A quality assessment for statistical outcomes was used to assess the measurement properties of the 2MWT. Best-evidence synthesis was collated from 25 studies of 14 patient groups. Only 1 study was found that examined the 2MWT in the pediatric population. The testing procedures of the 2MWT varied across the included studies. Reliability, validity (construct and criterion), and responsiveness of the 2MWT also varied across different patient groups. Moderate to strong evidence was found for reliability, convergent validity, discriminative validity, and responsiveness of the 2MWT in frail elderly patients. Moderate to strong evidence for reliability, convergent validity, and responsiveness was found in adults with lower limb amputations. Moderate to strong evidence for validity (convergent and discriminative) was found in adults who received rehabilitation after hip fractures or cardiac surgery. Limited evidence for the psychometric properties of the 2MWT was found in other population groups because of methodological flaws. There is inadequate breadth and depth of psychometric evidence of the 2MWT for clinical and research purposes-specifically, minimal clinically important changes and responsiveness. More good-quality studies are needed, especially in the pediatric population. Consensus on standardized testing procedures of

  10. Modern psychometrics for assessing achievement goal orientation: a Rasch analysis.

    Science.gov (United States)

    Muis, Krista R; Winne, Philip H; Edwards, Ordene V

    2009-09-01

    A program of research is needed that assesses the psychometric properties of instruments designed to quantify students' achievement goal orientations to clarify inconsistencies across previous studies and to provide a stronger basis for future research. We conducted traditional psychometric and modern Rasch-model analyses of the Achievement Goals Questionnaire (AGQ, Elliot & McGregor, 2001) and the Patterns of Adaptive Learning Scale (PALS, Midgley et al., 2000) to provide an in-depth analysis of the two most popular instruments in educational psychology. For Study 1, 217 undergraduate students enrolled in educational psychology courses participated. Thirty-four were male and 181 were female (two did not respond). Participants completed the AGQ in the context of their educational psychology class. For Study 2, 126 undergraduate students enrolled in educational psychology courses participated. Thirty were male and 95 were female (one did not respond). Participants completed the PALS in the context of their educational psychology class. Traditional psychometric assessments of the AGQ and PALS replicated previous studies. For both, reliability estimates ranged from good to very good for raw subscale scores and fit for the models of goal orientations were good. Based on traditional psychometrics, the AGQ and PALS are valid and reliable indicators of achievement goals. Rasch analyses revealed that estimates of reliability for items were very good but respondent ability estimates varied from poor to good for both the AGQ and PALS. These findings indicate that items validly and reliably reflect a group's aggregate goal orientation, but using either instrument to characterize an individual's goal orientation is hazardous.

  11. A Psychometric Review of Measures Assessing Discrimination Against Sexual Minorities.

    Science.gov (United States)

    Morrison, Todd G; Bishop, C J; Morrison, Melanie A; Parker-Taneo, Kandice

    2016-08-01

    Discrimination against sexual minorities is widespread and has deleterious consequences on victims' psychological and physical wellbeing. However, a review of the psychometric properties of instruments measuring lesbian, gay, and bisexual (LGB) discrimination has not been conducted. The results of this review, which involved evaluating 162 articles, reveal that most have suboptimal psychometric properties. Specifically, myriad scales possess questionable content validity as (1) items are not created in collaboration with sexual minorities; (2) measures possess a small number of items and, thus, may not sufficiently represent the domain of interest; and (3) scales are "adapted" from measures designed to examine race- and gender-based discrimination. Additional limitations include (1) summed scores are computed, often in the absence of scale score reliability metrics; (2) summed scores operate from the questionable assumption that diverse forms of discrimination are necessarily interrelated; (3) the dimensionality of instruments presumed to consist of subscales is seldom tested; (4) tests of criterion-related validity are routinely omitted; and (5) formal tests of measures' construct validity are seldom provided, necessitating that one infer validity based on the results obtained. The absence of "gold standard" measures, the attendant difficulty in formulating a coherent picture of this body of research, and suggestions for psychometric improvements are noted.

  12. Do item-writing flaws reduce examinations psychometric quality?

    Science.gov (United States)

    Pais, João; Silva, Artur; Guimarães, Bruno; Povo, Ana; Coelho, Elisabete; Silva-Pereira, Fernanda; Lourinho, Isabel; Ferreira, Maria Amélia; Severo, Milton

    2016-08-11

    The psychometric characteristics of multiple-choice questions (MCQ) changed when taking into account their anatomical sites and the presence of item-writing flaws (IWF). The aim is to understand the impact of the anatomical sites and the presence of IWF in the psychometric qualities of the MCQ. 800 Clinical Anatomy MCQ from eight examinations were classified as standard or flawed items and according to one of the eight anatomical sites. An item was classified as flawed if it violated at least one of the principles of item writing. The difficulty and discrimination indices of each item were obtained. 55.8 % of the MCQ were flawed items. The anatomical site of the items explained 6.2 and 3.2 % of the difficulty and discrimination parameters and the IWF explained 2.8 and 0.8 %, respectively. The impact of the IWF was heterogeneous, the Writing the Stem and Writing the Choices categories had a negative impact (higher difficulty and lower discrimination) while the other categories did not have any impact. The anatomical site effect was higher than IWF effect in the psychometric characteristics of the examination. When constructing MCQ, the focus should be in the topic/area of the items and only after in the presence of IWF.

  13. Psychometric properties of the Arab Heritage Activity Card Sort.

    Science.gov (United States)

    Hamed, Razan; Holm, Margo B

    2013-03-01

    The Activity Card Sort is a valid and reliable assessment tool that was created to assess Participation. It has been translated to several languages and adapted to different international cultures. The most recent version of this tool is the Arabic Heritage Activity Card Sort (A-ACS). The purpose of this study was to establish the psychometric properties of the new Arabic version in Jordanian adults. Forty three Jordanian patients with multiple sclerosis (MS) and 62 healthy adults were recruited to test the psychometric properties of the tool. The A-ACS correlated moderately with the participation index of the Mayo-Portland Adaptability Inventory (r = -0.458, p Heritage of the Activity Card Sort is a valid and reliable tool for Arabic-speaking occupational therapists to use when assessing participation in Jordanian patients with MS or healthy adults. Limitations of this study include using only one diagnostic group from Jordan and examining only the Recovery and Community Versions of the tool. Future studies are needed to examine further psychometric properties for patients with different diagnoses and from different countries in the Arabic region for all three versions of the A-ACS.

  14. Adaptation and psychometric analysis of the Gilliam Asperger’ Disorder Scale

    Directory of Open Access Journals (Sweden)

    Carmen Gloria Fernández Baeza

    2013-12-01

    Full Text Available The Gilliam Asperger’s Disorder Scale (GADS is a norm-referenced assessment designed to help professionals in Asperger Syndrome (AS diagnosis. This scale is used to evaluate subjects between 3 and 22 years old and it can be completed by anyone who has regular contact with a subject with AS. The only known psychometric studies with positive results are those of the normative sample. Thus this research attempts to explain whether GADS retains the psychometric properties of the normative sample when applied to the Chilean population with AS. To this purpose it was selected a probabilistic intentional sample compose of 36 subjects in the pilot phase and 111 subjects in the final phase. The subscales obtained a Cronbach’s alpha between 0,73 and 0,87, while the global scored 0,92. It was carried out an exploratory factor analysis, thought which it was obtained a factor solution of 8 in the final phase. The results obtained allow to conclude that GADS has adequate psychometric properties, which means GADS is a valid and reliable instrument to be applied to Chilean population.

  15. Automated Neuropsychological Assessment Metrics, Version 4 (ANAM4): Examination of Select Psychometric Properties and Administration Procedures

    Science.gov (United States)

    2016-12-01

    1 Award Number: W81XWH-08-1-0021 TITLE: Automated Neuropsychological Assessment Metrics, Version 4 (ANAM4): Examination of Select Psychometric ...NUMBER W81XWH-08-1-0021 Automated Neuropsychological Assessment Metrics, Version 4 (ANAM4): Examination of Select Psychometric Properties and...testing scenarios. The primary objective of this project is to examine select psychometric and administration properties of the ANAM4. Four studies were

  16. [Typical forms of schizophrenia in old age].

    Science.gov (United States)

    Sternberg, E; Konzewoi, V

    1978-01-01

    Aside from typical forms of late schizophrenia which generally conform to the definition given by M. Bleuler, there also are psychoses appearing in old age which differ significantly from the atypical symptoms and consequently present certain diagnostic difficulties. This report contains descriptions of late manifestations in schizophrenic psychoses, which develop with a continuous or assault-like course with a prevalence of parnoial disorders. Paranoid delusions, in such cases, are characterized by aging traits (concrete and short-term delusions, exaggeration of the degree of superficial persecution and prejudice, and a limited number of people involved in the delusions). The development of such forms of late schizophrenia takes a slowly progressing course. The results of these studies, especially the psychopathological symptomatology, the genetic-constitutional background and the development and outcome of these psychoses are analyzed in detail. The data permit to consider such forms of psychose as atypical variants of late schizophrenia.

  17. Typical object velocity influences motion extrapolation.

    Science.gov (United States)

    Makin, Alexis D J; Stewart, Andrew J; Poliakoff, Ellen

    2009-02-01

    Previous work indicates that extrapolation of object motion during occlusion is affected by the velocity of the immediately preceding trial. Here we ask whether longer-term velocity representations can also influence motion extrapolation. Red, blue or green targets disappeared behind an occluder. Participants pressed a button when they thought the target had reached the other side. Red targets were slower (10-20 deg/s), blue targets moved at medium velocities (14-26 deg/s) and green targets were faster (20-30 deg/s). We compared responses on a subset of red and green trials which always travelled at 20 deg/s. Although trial velocities were identical, participants responded as if the green targets moved faster (M = 22.64 deg/s) then the red targets (M = 19.72 deg/s). This indicates that motion extrapolation is affected by longer-term information about the typical velocity of different categories of stimuli.

  18. Typical and Atypical Manifestations of Intrathoracic Sarcoidosis

    Energy Technology Data Exchange (ETDEWEB)

    Park, Hyun Jin; Jung, Jung Im; Chung, Myung Hee; Song, Sun Wha; Kim, Hyo Lim; Baik, Jun Hyun; Han, Dae Hee [St. Vincent' s Hospital, The Catholic University of Korea, Suwon (Korea, Republic of); Kim, Ki Jun [Incheon St. Mary' s Hospital, The Catholic University of Korea, Incheon (Korea, Republic of); Lee, Kyo Young [Seoul St. Mary' s Hospital, The Catholic University of Korea, Seoul (Korea, Republic of)

    2009-12-15

    Sarcoidosis is a systemic disorder of unknown cause that is characterized by the presence of noncaseating granulomas. The radiological findings associated with sarcoidosis have been well described. The findings include symmetric, bilateral hilar and paratracheal lymphadenopathy, with or without concomitant parenchymal abnormalities (multiple small nodules in a peribronchovascular distribution along with irregular thickening of the interstitium). However, in 25% to 30% of cases, the radiological findings are atypical and unfamiliar to most radiologists, which cause difficulty for making a correct diagnosis. Many atypical forms of intrathoracic sarcoidosis have been described sporadically. We have collected cases with unusual radiological findings associated with pulmonary sarcoidosis (unilateral or asymmetric lymphadenopathy, necrosis or cavitation, large opacity, ground glass opacity, an airway abnormality and pleural involvement) and describe the typical forms of the disorder as well. The understanding of a wide range of the radiological manifestations of sarcoidosis will be very helpful for making a proper diagnosis.

  19. Manipulating decision making of typical agents

    CERN Document Server

    Yukalov, V I

    2014-01-01

    We investigate how the choice of decision makers can be varied under the presence of risk and uncertainty. Our analysis is based on the approach we have previously applied to individual decision makers, which we now generalize to the case of decision makers that are members of a society. The approach employs the mathematical techniques that are common in quantum theory, justifying our naming as Quantum Decision Theory. However, we do not assume that decision makers are quantum objects. The techniques of quantum theory are needed only for defining the prospect probabilities taking into account such hidden variables as behavioral biases and other subconscious feelings. The approach describes an agent's choice as a probabilistic event occurring with a probability that is the sum of a utility factor and of an attraction factor. The attraction factor embodies subjective and unconscious dimensions in the mind of the decision maker. We show that the typical aggregate amplitude of the attraction factor is $1/4$, and ...

  20. Psychometric properties of the Vertigo symptom scale – Short form

    Directory of Open Access Journals (Sweden)

    Nordahl Stein

    2008-03-01

    Full Text Available Abstract Background The aim of the study was to examine the psychometric properties of the Vertigo symptom scale – short form (VSS-SF, a condition-specific measure of dizziness, following translation of the scale into Norwegian. Methods A cross-sectional survey design was used to examine the factor structure, internal consistency and discriminative ability (sample I, n = 503. A cross-sectional pre-intervention design was used to examine the construct validity (sample II, n = 36 of the measure and a test-retest design was used to examine reliability (sub-sample of sample II, n = 28. Results The scree plot indicated a two factor structure accounting respectively for 41% and 12% of the variance prior to rotation. The factors were related to vertigo-balance (VSS-V and autonomic-anxiety (VSS-A. Twelve of the items loaded clearly on either of the two dimensions, while three items cross-loaded. Internal consistency of the VSS-SF was high (alpha = 0.90. Construct validity was indicated by correlation between path length registered by platform posturography and the VSS-V (r = 0.52, but not with the VSS-A. The ability to discriminate between dizzy and not dizzy patients was excellent for the VSS-SF and sub-dimension VSS-V (area under the curve 0.87 and 0.91, respectively, and acceptable for the sub-dimension VSS-A (area under the curve 0.77. High test-retest reliability was demonstrated (ICC VSS-SF: 0.88, VSS-V: 0.90, VSS-A: 0.90 and no systematic change was observed in the scores from test to retest after 2 days. Conclusion Using a Norwegian translated version of the VSS-SF, this is the first study to provide evidence of the construct validity of this instrument demonstrating a stable two factor structure of the scale, and the identified sub-dimensions of dizziness were related to vertigo-balance and autonomic-anxiety, respectively. Evidence regarding a physical construct underlying the vertigo-balance sub-scale was provided. Satisfactory internal

  1. Effects of common chronic medical conditions on psychometric tests used to diagnose minimal hepatic encephalopathy

    DEFF Research Database (Denmark)

    Lauridsen, M M; Poulsen, L; Rasmussen, C K

    2016-01-01

    Many chronic medical conditions are accompanied by cognitive disturbances but these have only to a very limited extent been psychometrically quantified. An exception is liver cirrhosis where hepatic encephalopathy is an inherent risk and mild forms are diagnosed by psychometric tests. The preferred....../15, p psychometrically measurable cognitive deficits, whereas those with ESRF or DMII had not. This adds to the understanding of the clinical consequences of chronic heart- and lung disease, and implies...... that the psychometric tests should be interpreted with great caution in cirrhosis patients with heart- or lung comorbidity....

  2. Development and validation of the Brazilian version of the Attitudes to Aging Questionnaire (AAQ: An example of merging classical psychometric theory and the Rasch measurement model

    Directory of Open Access Journals (Sweden)

    Trentini Clarissa M

    2008-01-01

    Full Text Available Abstract Background Aging has determined a demographic shift in the world, which is considered a major societal achievement, and a challenge. Aging is primarily a subjective experience, shaped by factors such as gender and culture. There is a lack of instruments to assess attitudes to aging adequately. In addition, there is no instrument developed or validated in developing region contexts, so that the particularities of ageing in these areas are not included in the measures available. This paper aims to develop and validate a reliable attitude to aging instrument by combining classical psychometric approach and Rasch analysis. Methods Pilot study and field trial are described in details. Statistical analysis included classic psychometric theory (EFA and CFA and Rasch measurement model. The latter was applied to examine unidimensionality, response scale and item fit. Results Sample was composed of 424 Brazilian old adults, which was compared to an international sample (n = 5238. The final instrument shows excellent psychometric performance (discriminant validity, confirmatory factor analysis and Rasch fit statistics. Rasch analysis indicated that modifications in the response scale and item deletions improved the initial solution derived from the classic approach. Conclusion The combination of classic and modern psychometric theories in a complementary way is fruitful for development and validation of instruments. The construction of a reliable Brazilian Attitudes to Aging Questionnaire is important for assessing cultural specificities of aging in a transcultural perspective and can be applied in international cross-cultural investigations running less risk of cultural bias.

  3. [Cross-cultural adaptation and psychometric tests of a self-efficacy scale and an adherence scale for French adolescents with Type 1 diabetes

    Science.gov (United States)

    Colson, Sébastien; Coté, José; Collombier, Madeleine; Debout, Christophe; Bonnel, Galadriel; Reynaud, Rachel; Lagouanelle-Simeoni, Marie-Claude

    2016-12-01

    Introduction : many structured educational programs, using the concept of self-efficacy, have been studied in English-speaking countries. Background : tools were developed in English to assess this concept along with treatment adherence. However, there seems to be no French version of these tools in scientific literature. Aim : to adapt the tools to the French language and to test the psychometric properties of the Self-Efficacy for Diabetes Self-Management (SEDM) and the Diabetes Self-Management Profile (DSMP). Methods : a cross-cultural adaptation of the SEDM and DSMP in French was performed. The psychometric properties were tested in a pilot study that took place between January 1st and December 31st, 2015. Results : Cronbach’s alpha coefficient of SEDM in French was 0.84, test-retest reliability 0.80 and sensitivity to change was moderate. The Cronbach’s alpha and sensitivity to change of the French DSMP were low, and the test-retest was 0.71. Discussion and conclusions : the first results of the psychometric properties of French SEDM were rather encouraging. The use of the French version of DSMP seems compromised in terms of psychometric properties and the opinion of the participants.

  4. Psychometric Properties of the Medication Non-Adherence Questionnaire in Patients With Psychiatric Disorders

    Directory of Open Access Journals (Sweden)

    Bahreini

    2015-07-01

    Full Text Available Background Non-adherence to medication in psychiatric patients and identification of related risk factors has provided serious challenges for care service providers. Objectives The current study aims to determine the psychometrics of a questionnaire used to indicate risk factors related to non-adherence to medication in psychiatric patients. Patients and Methods Four-hundred patients with psychiatric disorders in Bushehr and Shiraz were enrolled in this cross-sectional study using convenient sampling methods. An initial questionnaire was designed with 23 items. Following the confirmation of content and face validity of the questionnaire, the questionnaire was completed by the participants and 11 experts contributing to the administration. The item impact score, content validity index (CVI, and content validity ratio (CVR were examined using exploratory factor analysis. In order to calculate the internal and external reliability, the Kuder-Richardson and re-test methods were used. Results Factor analysis revealed five factors in the questionnaire. Five of 23 items had low content validity and were eliminated. The CVI and CVR of the questionnaire were 0.89 and 0.85, respectively. One statement was eliminated owing to a reduced factor load. Internal reliability was r = 0.86, estimated using the Kuder-Richardson method, and external reliability was r = 0.93, estimated via a Pearson correlation coefficient. Five factors resulting from the questionnaire had optimal reliability according to the Cronbach’s alpha coefficient (0.79. Five factors were extracted, including factors related to disease, patient and environment, attitudes toward treatment and therapist, drug side effects, and previous experience to treatment. Conclusions The questionnaire on risk factors related to medication non-adherence in patients with psychiatric disorders had acceptable psychometric characteristics, and is a useful tool to be implemented in medical centers and

  5. Designing and Psychometric Evaluation of Adjustment to Illness Measurement Inventory for Iranian Women With Breast Cancer

    Science.gov (United States)

    Hajian, Sepideh; Mehrabi, Esmat; Simbar, Masoumeh; Houshyari, Mohammad; Zayeri, Farid; Hajian, Parastoo

    2016-01-01

    Background Cancer diagnosis for everybody may be perceived as crisis and breast cancer, as the most common malignancy in women, can influence their well-being and multiple aspects of their health. So understanding that how women in various contexts and communities adjust to the illness is necessary to facilitate this adjustment and improve their quality of life. Objectives The aim of this study was to: 1) identify the core components of coping strategies to adjust to the illness in Iranian women with breast cancer perspective, 2) to develop and determine psychometric properties of a native self-report instrument to assess coping behaviors and measure the degree of adjustment with the breast cancer. Methods The present exploratory mixed method study was conducted in two consecutive stages: 1) the hermeneutic phenomenological study was done to explore the life experiences of coping styles to adjust with the breast cancer using in-depth interviews with patients that lead to item generation; 2) psychometric properties (validity and reliability) of the instrument were evaluated recruiting 340 eligible women. The item pool was reduced systematically and resulted in a 49-item instrument. Results From the qualitative stage, item pool containing 78 items related to coping strategies to adjust with the breast cancer. After eliminating unwanted statements from the results, qualitative and quantitative face and content validity, the 10 factors extracted employing construct validity were: feeling of guilt, abstention-diversion, role preservation and seeking support, efforts for threat control, confronting, fear and anxiety, role wasting, maturation and growth, isolation, and fatalism. These factors accounted for the 59.1% of variance observed. The Cronbach reliability test was carried out and alpha value of 10 factors was calculated from 0.78 to 0.87 confirming all factors were internally consistent. The scale’s stability was tested using the test-retest method. Conclusions

  6. Artificial bias typically neglected in comparisons of uncertain atmospheric data

    Science.gov (United States)

    Pitkänen, Mikko R. A.; Mikkonen, Santtu; Lehtinen, Kari E. J.; Lipponen, Antti; Arola, Antti

    2016-09-01

    Publications in atmospheric sciences typically neglect biases caused by regression dilution (bias of the ordinary least squares line fitting) and regression to the mean (RTM) in comparisons of uncertain data. We use synthetic observations mimicking real atmospheric data to demonstrate how the biases arise from random data uncertainties of measurements, model output, or satellite retrieval products. Further, we provide examples of typical methods of data comparisons that have a tendency to pronounce the biases. The results show, that data uncertainties can significantly bias data comparisons due to regression dilution and RTM, a fact that is known in statistics but disregarded in atmospheric sciences. Thus, we argue that often these biases are widely regarded as measurement or modeling errors, for instance, while they in fact are artificial. It is essential that atmospheric and geoscience communities become aware of and consider these features in research.

  7. Psychometric properties of the Children’s Revised Impact of Events Scale (CRIES with Bangladeshi children and adolescents

    Directory of Open Access Journals (Sweden)

    Farah Deeba

    2014-08-01

    Full Text Available Identification of possible cases suffering post-traumatic stress disorder (PTSD is important, especially in developing countries where traumatic events are typically prevalent. The Children’s Revised Impact of Events Scale is a reliable and valid measure that has two brief versions (13 items and 8 items to assess reactions to traumatic events among young people. The current study evaluated the psychometric properties of both versions of the CRIES in a sample of 1,342 children and adolescents aged 9–17 years (M = 12.3 years, SD = 2.12 recruited from six districts of Bangladesh. A sub-group of 120 children from four schools was re-tested on the measures within 3.5 weeks. Confirmatory factor analysis supported factor structures similar to those found in other studies for both versions of the CRIES. Multiple group confirmatory factor analysis showed gender and age-group differences within the sample, supporting established age and gender differences in prevalence of PTSD symptoms. Analyses also indicated moderate to excellent internal consistency and test-retest reliability and clear discriminant and convergent validity. These data support use of both the CRIES-13 and CRIES-8 to provide quick and psychometrically sound assessment of symptoms of PTSD among children and adolescents from Bangla-speaking communities.

  8. Theory of Mind experience sampling in typical adults.

    Science.gov (United States)

    Bryant, Lauren; Coffey, Anna; Povinelli, Daniel J; Pruett, John R

    2013-09-01

    We explored the frequency with which typical adults make Theory of Mind (ToM) attributions, and under what circumstances these attributions occur. We used an experience sampling method to query 30 typical adults about their everyday thoughts. Participants carried a Personal Data Assistant (PDA) that prompted them to categorize their thoughts as Action, Mental State, or Miscellaneous at approximately 30 pseudo-random times during a continuous 10-h period. Additionally, participants noted the direction of their thought (self versus other) and degree of socializing (with people versus alone) at the time of inquiry. We were interested in the relative frequency of ToM (mental state attributions) and how prominent they were in immediate social exchanges. Analyses of multiple choice answers suggest that typical adults: (1) spend more time thinking about actions than mental states and miscellaneous things, (2) exhibit a higher degree of own- versus other-directed thought when alone, and (3) make mental state attributions more frequently when not interacting (offline) than while interacting with others (online). A significant 3-way interaction between thought type, direction of thought, and socializing emerged because action but not mental state thoughts about others occurred more frequently when participants were interacting with people versus when alone; whereas there was an increase in the frequency of both action and mental state attributions about the self when participants were alone as opposed to socializing. A secondary analysis of coded free text responses supports findings 1-3. The results of this study help to create a more naturalistic picture of ToM use in everyday life and the method shows promise for future study of typical and atypical thought processes. Copyright © 2013 Elsevier Inc. All rights reserved.

  9. [Typical problems in pediatric emergencies: Possible solutions].

    Science.gov (United States)

    Heimberg, E; Heinzel, O; Hoffmann, F

    2015-06-01

    Pediatric emergencies are rare and challenging for health care providers, parents, and patients. The purpose of this article is to highlight typical difficulties in the treatment of pediatric patients and to discuss potential solutions. This article is based on a selective literature search using PubMed and the experience of the authors in the field of simulation and pediatric emergencies. Inexperience with pediatric emergencies, uncertainty in technical skills, in the usage of pediatric equipment and in medication dosage as well as parental presence foster the perception of stress and potentially compromise the success of patient care. Beside implementation of simplified technical skill devices (e.g., intraosseous vascular access system, supraglottic airway devices, and alternative approaches for drug administration), there have been many efforts in recent years to improve patient safety. Tools for estimating body weight and precalculated drug-dosing charts have been implemented as well as standardized courses for guidelines, technical skills, and team-related skills have been established. To improve patient safety, regular training and implementation of a sustainable safety culture are mandatory.

  10. A Look at Psychometrics in the Netherlands.

    Science.gov (United States)

    Hambleton, Ronald K.; Swaminathan, H.

    Comments are made on the review papers presented by six Dutch psychometricians: Ivo Molenaar, Wim van der Linden, Ed Roskam, Arnold Van den Wollenberg, Gideon Mellenbergh, and Dato de Gruijter. Molenaar has embraced a pragmatic viewpoint on Bayesian methods, using both empirical and pure approaches to solve educational research problems. Molenaar…

  11. Infiuence of Bicycle Traffic on Capacity of Typical Signalized Intersection

    Institute of Scientific and Technical Information of China (English)

    CHEN Xiaoming; SHAO Chunfu; YUE Hao

    2007-01-01

    Bicycle traffic has a significant effect on the capacity of signalized intersections. This paper divides the influence of bicyclists on vehicular flow into four types with the time durations estimated based on probability, shock wave, and gap acceptance theory. Vehicular saturation flow rate is predicted for various conditions on the basis of the speed-flow curve for the capacity of typical intersections influenced by bicycle traffic.The model overcomes the limitations of the Highway Capacity Manual (HCM, 2000) method for left-turns due to data collection, and takes into account the effect of trapped bicycles on the through vehicular traffic.The numerical results show that the left-turn and through capacities predicted by the model are lower than those of the HCM method. The right-turn capacity is close to that of the HCM method at Iow bicycle volumes and higher than that of the HCM method at high bicycle volumes.

  12. Psychometric properties of the Polish version of the Oldenburg Burnout Inventory (OLBI

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    Łukasz Baka

    2016-04-01

    Full Text Available Background: The objective of this study was to test the psychometric properties of the Polish version of the Oldenburg Burnout Inventory (OLBI – its factor structure, reliability, validity and standard norms. Material and Methods: The study was conducted on 3 independent samples of 1804, 366 and 48 workers employed in social service and general service professions. To test the OLBI structure the exploratory factor analysis was conducted. The reliability was assessed by means of Cronbach’s α coefficient (the internal consistent and test–retest (the stability over time method, with a 6-week follow-up. The construct validity of the OLBI was tested by means of correlation analysis, using perceived stress and work engagement as the criterion variables. Results: The result of the factor analysis confirmed a 2-factor structure of the Inventory but the construction of each factor differed from that in the OLBI original version. Therefore, 2 separate factor analyses – each for the single component of job burnout (exhaustion and disengagement from work – were conducted. The analyses revealed that each of the components consisted of 2 subscales. The reliability of the OLBI was supported by 2 methods. It was also proved that job burnout and its 2 components, exhaustion and disengagement from work, were positively correlated with perceived stress and negatively correlated with work engagement and its 3 components – vigor, absorption and dedication. Conclusions: Despite certain limitations the Polish version of the OLBI shows satisfactory psychometric properties and it can be used to measure job burnout in Polish conditions. Med Pr 2016;67(1:29–41

  13. Major Article Social Facilitation Expectancies for Smoking: Psychometric Properties of a New Measure

    Science.gov (United States)

    Schweizer, C. Amanda; Doran, Neal; Myers, Mark G.

    2014-01-01

    Objective Expectancies about social outcomes for smoking are relevant to college student smokers, who frequently report “social smoking.” A new measure, the Social Facilitation Expectancies (SFE) scale, was developed to assess these beliefs. Participants The SFE was administered to undergraduate college student smokers (N=1096; study completed in May 2011). Methods Items were scored on a five-point scale with a summed total score. The sample was randomly split and principle axis factoring and confirmatory factor analysis applied to determine scale structure. The structure was tested across sex and smoking groups and validation analyses were conducted. Results A nine-item, one-factor scale was replicated within each group. Higher SFE scores were observed among those with greater smoking experience and higher scores were associated with greater endorsement of other smoking related beliefs. Conclusions These preliminary findings provide support for the sound psychometric properties of this measure for use with young adult college students. PMID:24456515

  14. College Students’ Perceptions of Professor/Instructor Bullying: Questionnaire Development and Psychometric Properties

    Science.gov (United States)

    Marraccini, Marisa E.; Weyandt, Lisa L.; Rossi, Joseph S.

    2016-01-01

    Objective This study developed and examined the psychometric properties of a newly formed measure designed to assess professor/instructor bullying, as well as teacher bullying occurring prior to college. Additionally, prevalence of instructor bullying and characteristics related to victims of instructor bullying were examined. Participants Participants were 337 college students recruited in 2012 from a northeastern university. Methods An online questionnaire was administered to college students. A split-half, cross-validation approach was employed for measurement development. Results The measure demonstrated strong criterion validity and internal consistency. Approximately half of students reported witnessing professor/instructor bullying and 18% reported being bullied by a professor/instructor. Report of teacher bullying occurring prior to college was related to professor/instructor bullying in college, and sex was a moderating variable. Conclusion College students perceive instructor bullying as occurring but may not know how to properly address it. Prevention efforts should be made by university administrators, faculty and staff. PMID:26151235

  15. SUBCLINICAL HEPATIC ENCEPHALOPATHY DETECTED THROUGH PSYCHOMETRIC TESTS IN PATIENTS WITH HEPATIC CELLULAR CARCINOMA AND CIRRHOSIS

    Institute of Scientific and Technical Information of China (English)

    李薇; 吴积坰; 李惠芳; 顾海蔚; 范晓方

    2002-01-01

    Objective To study subclinical hepatic encephalopathy (SHE) in patients with hepatic cellular carcinoma by using psychometric tests.Methods 112 cases of hepatic cellular carcinoma complicated with cirrhosis and 65 controls were detected with number connection test (NCT), digital span test (DSP) and digital symbol test (DSY).Results The abnormal rate of NCT, DSY and DSP in patients was 23.2% (26/112), 14.3% (16/112) and 11.6%(13/112) respectively. Patients in the Child-Pugh B group had a significantly higher abnormal rate than that in the Child-Pugh A group.Conclusion SHE has an incidence of 25.0% (28/112) in patients with hepatic cellular carcinoma and cirrhosis in this study population; its occurrence is associated with the severity of liver impairment.

  16. Penn State Worry Questionnaire: structure and psychometric properties of the Chinese version

    Institute of Scientific and Technical Information of China (English)

    Jie ZHONG; Chun WANG; Jie LI; Jun LIU

    2009-01-01

    The Penn State Worry Questionnaire (PSWQ) is a measure of worry phenomena and has been demonstrated valid in cross-cultural populations. The present study examined the factor structure and psychometric properties of the Chinese version of PSWQ (Ch-PSWQ) in a Chinese college sample (n=1243). Exploratory factor analysis of the Ch-PSWQ revealed a two-factor solution (engagement of worry and absence of worry). Confirmatory factor analysis and model comparison supported that the model of one factor with method effect provided the best fit to the data. The Ch-PSWQ and its factors evidenced good internal consistency and both convergent and discriminate validity. The present study supports the opinion that the second factor of PSWQ not only contains the component of evaluating pathological worry, but also might represent other traits.

  17. Development and examination of the psychometric properties of the Learning Experience Scale in nursing.

    Science.gov (United States)

    Takase, Miyuki; Imai, Takiko; Uemura, Chizuru

    2016-06-01

    This paper examines the psychometric properties of the Learning Experience Scale. A survey method was used to collect data from a total of 502 nurses. Data were analyzed by factor analysis and the known-groups technique to examine the construct validity of the scale. In addition, internal consistency was evaluated by Cronbach's alpha, and stability was examined by test-retest correlation. Factor analysis showed that the Learning Experience Scale consisted of five factors: learning from practice, others, training, feedback, and reflection. The scale also had the power to discriminate between nurses with high and low levels of nursing competence. The internal consistency and the stability of the scale were also acceptable. The Learning Experience Scale is a valid and reliable instrument, and helps organizations to effectively design learning interventions for nurses.

  18. Development and psychometric properties of the scale for self-consciousness assessment.

    Science.gov (United States)

    Mylonas, Kostas; Veligekas, Panayiotis; Gari, Aikaterini; Kontaxopoulou, Dionysia

    2012-08-01

    This scale development employed Duval and Wicklund's (1972), Carver's (1979), and Zaborowski's (1987) theories on self-consciousness. The aim of the study was to create a new method to assess the self-consciousness construct, in an effort to operationally express self-consciousness, while circumventing existing metric and other impediments. Initially, 38 pilot interviews were conducted with undergraduate psychology students, and two studies followed, one on 494 participants and one on 248 participants. Exploratory factor analysis models, equivalence testing, followed by a third confirmatory factor analysis study on a separate sample of 216 participants, resulted in a final 24-item scale. A four-factor structure of two public and two private self-consciousness dimensions emerged. The Scale for Self-Consciousness Assessment (SSCA) can be of use in various areas of psychological research, possibly in concurrent use with other constructs of interest, due to its theoretical and research importance and its adequate psychometric properties.

  19. TYPICAL ABSENCES: RESULTS OF OWN INVESTIGATIONS

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    K. Yu. Mukhin

    2015-01-01

    Full Text Available Typical absences (TA are brief primary generalized epileptic seizures characterized by sudden onset and termination. According to their definition, absences consist of impairment of consciousness that is synchronously accompanied by electroencephalographic (EEG changes as generalized spike–slow wave discharges of 3 or more Hz. The authors conducted an investigation of 1261 patients with different forms of epilepsy with onset of seizures from the first days of life to the age of 18 years. The patients were followed up from 1990 to 2010. Absence seizures were detected in 231 patients, which accounts for 18.3 % of all the epileptic patients. TA were found in 102 patients, which constitutes 8.1 % of all cases of epilepsy with onset of seizures beyond the age of 18 years. The paper provides a detailed analysis of a group of patients with TA in terms of anamnestic, clinical, electroencephalographic, and neuroimaging features and the results of therapy with antiepileptic drugs (AEDs. The age of onset of TA-associated epilepsy was from 9 months to 17 years (mean 9.4 ± 4.06 years. The disease occurred most frequently in young school-age children (41.2 %. Isolated TA as the only type of seizures were observed in the clinical picture of 28 (27.5 % patients. TA were concurrent with other types of seizures in other cases. The investigators have identified 4 types of seizures which TA (generalized convulsions, myoclonic seizures, febrile seizures, and eyelid myoclonia may be concurrent with. Neuroimaging stated there were no brain changes in 85.3 % of TA-associated epilepsy cases. Moderate diffuse subatrophic changes were detected in other cases (14.7 %. Local cerebral structural abnormalities were absent. The use of antiepileptic therapy as both monotherapy and polytherapy using different combinations showed the high efficacy of AEDs. Complete remission was achieved in 84.3 % of TA-associated epilepsy cases. An AED-induced reduction in the frequency of

  20. Psychometric Properties of the MMPI-2-RF Somatic Complaints (RC1) Scale

    Science.gov (United States)

    Thomas, Michael L.; Locke, Dona E. C.

    2010-01-01

    The MMPI-2 Restructured Form (MMPI-2-RF; Tellegen & Ben-Porath, 2008) was designed to be psychometrically superior to its MMPI-2 counterpart. However, the test has yet to be extensively evaluated in diverse clinical settings. The purpose of this study was to examine the psychometric properties of the MMPI-2-RF Somatic Complaints (RC1) scale in…

  1. Psychometric properties of two questionnaires in the context of total wrist arthroplasty

    DEFF Research Database (Denmark)

    Boeckstyns, Michel E H; Merser, Søren

    2014-01-01

    INTRODUCTION: Patient-rated outcome measures are frequently used to assess the results of total wrist arthroplasty, but their psychometric properties have not yet been evaluated in this group of patients. The purpose of our study was to assess the psychometric properties of the Danish Quick...

  2. Psychometric Properties of Raw and Scale Scores on Mixed-Format Tests

    Science.gov (United States)

    Kolen, Michael J.; Lee, Won-Chan

    2011-01-01

    This paper illustrates that the psychometric properties of scores and scales that are used with mixed-format educational tests can impact the use and interpretation of the scores that are reported to examinees. Psychometric properties that include reliability and conditional standard errors of measurement are considered in this paper. The focus is…

  3. Development and Psychometric Validation of the Family Outcomes Survey-Revised

    Science.gov (United States)

    Bailey, Donald B., Jr.; Raspa, Melissa; Olmsted, Murrey G.; Novak, Scott P.; Sam, Ann M.; Humphreys, Betsy P.; Nelson, Robin; Robinson, Nyle; Guillen, Chelsea

    2011-01-01

    Few psychometrically valid scales exist to assess family outcomes and the helpfulness of early intervention. This article describes the development and psychometric properties of the Family Outcomes Survey-Revised. The revision was prompted by the need to (a) create a new format that would be easier for parents to understand, (b) revise and expand…

  4. A Creation Narrative for the Psychometric Society and Psychometrika: In the Beginning There Was Paul Horst.

    Science.gov (United States)

    Heiser, Willem; Hubert, Lawrence

    2016-12-01

    A review is provided for the creation of the Psychometric Society in 1935, and the establishment of its journal, Psychometrika, in 1936. This document is part of the 80th anniversary celebration for Psychometrika's founding, held during the annual meeting of the Psychometric Society in July of 2016 in Asheville, NC.

  5. Psychometrics and Its Discontents: An Historical Perspective on the Discourse of the Measurement Tradition

    Science.gov (United States)

    Schoenherr, Jordan Richard; Hamstra, Stanley J.

    2016-01-01

    Psychometrics has recently undergone extensive criticism within the medical education literature. The use of quantitative measurement using psychometric instruments such as response scales is thought to emphasize a narrow range of relevant learner skills and competencies. Recent reviews and commentaries suggest that a paradigm shift might be…

  6. The quality improvement attitude survey: Development and preliminary psychometric characteristics.

    Science.gov (United States)

    Dunagan, Pamela B

    2017-08-22

    To report the development of a tool to measure nurse's attitudes about quality improvement in their practice setting and to examine preliminary psychometric characteristics of the Quality Improvement Nursing Attitude Scale. Human factors such as nursing attitudes of complacency have been identified as root causes of sentinel events. Attitudes of nurses concerning use of Quality and Safety Education for nurse's competencies can be most challenging to teach and to change. No tool has been developed measuring attitudes of nurses concerning their role in quality improvement. A descriptive study design with preliminary psychometric evaluation was used to examine the preliminary psychometric characteristics of the Quality Improvement Nursing Attitude Scale. Registered bedside clinical nurses comprised the sample for the study (n = 57). Quantitative data were analysed using descriptive statistics and Cronbach's alpha reliability. Total score and individual item statistics were evaluated. Two open-ended items were used to collect statements about nurses' feelings regarding their experience in quality improvement efforts. Strong support for the internal consistency reliability and face validity of the Quality Improvement Nursing Attitude Scale was found. Total scale scores were high indicating nurse participants valued Quality and Safety Education for Nurse competencies in practice. However, item-level statistics indicated nurses felt powerless when other nurses deviate from care standards. Additionally, the sample indicated they did not consistently report patient safety issues and did not have a feeling of value in efforts to improve care. Findings suggested organisational culture fosters nurses' reporting safety issues and feeling valued in efforts to improve care. Participants' narrative comments and item analysis revealed the need to generate new items for the Quality Improvement Nursing Attitude Scale focused on nurses' perception of their importance in quality and

  7. Anatomical and psychometric relationships of behavioral neglect in daily living.

    Science.gov (United States)

    Rousseaux, Marc; Allart, Etienne; Bernati, Thérèse; Saj, Arnaud

    2015-04-01

    Spatial neglect has been related to both cortical (predominantly at the temporal-parietal junction) and subcortical (predominantly of the superior longitudinal fasciculus) lesions. The objectives of this observational study were to specify the anatomical relationships of behavioral neglect in activities of daily living (N-ADLs), and the anatomical and psychometric relationships of N-ADLs on one hand and components of neglect (peripersonal neglect and personal neglect) and anosognosia on the other. Forty five patients were analyzed for behavioral difficulties in daily living (on the Catherine Bergego scale) and the main components of neglect (using conventional clinical assessments) during the first months post right hemisphere stroke. Voxel-based lesion-symptom mapping was used to identify brain areas within which lesions explained the severity of bias in each assessment (non-parametric permutation test; p<0.01, one tailed). N-ADLs was associated with lesions centered on the posterior part of the superior temporal gyrus and extending to the temporo-parietal junction, temporo-occipital junction and subcortical white matter (including the superior longitudinal fasciculus). Peripersonal neglect resulted from extended cortical lesions centered on the superior temporal gyrus and the inferior parietal gyrus, with subcortical extension. Personal neglect resulted predominantly from lesions centered on the somatosensory cortex and at a lesser degree on the superior temporal sulcus. Anosognosia resulted from lesions of the posterior inferior temporal gyrus and superior temporal gyrus. In anatomic terms, N-ADLs was strongly related to peripersonal neglect, and those relationships were also shown by the psychometric analysis. In conclusions, superior temporal gyrus and superior longitudinal fasciculus lesions have a pivotal role in N-ADLs. N-ADLs is principally related (anatomically and psychometrically) to peripersonal neglect, and at a lesser degree to anosognosia and

  8. The psychometric properties of the Emotional Quotient Inventory 2.0 in South Africa

    Directory of Open Access Journals (Sweden)

    Casper J.J. van Zyl

    2014-02-01

    Full Text Available Orientation: Psychological assessments require continued refinement, updating and evaluation.Research purpose: The purpose of this study is to examine the psychometric properties of the Emotional Quotient Inventory (EQ-i 2.0 in South Africa. Item response and classical test theory methods are employed to investigate its item functioning and factor structure.Motivation for the study: Although there has been some scientific research published on the EQ-i in South Africa, there has been no research on the revised version, the EQ-i 2.0. In addition, criticism has been levied against the estimation of internal consistency reliability in the field of emotional intelligence. This study aims to fill these gaps in the literature.Research design, approach and method: This study followed a quantitative, non-experimental,cross-sectional design using secondary data. The sample comprised 1144 working adults(570 men and 574 women. The data were collected through an online platform as part of the standardisation process in South Africa.Main findings: Results from Rasch analysis showed that almost all the items fit the model.Cronbach’s alpha and McDonald’s omega estimates revealed satisfactory reliabilities.Confirmatory factor analysis at the composite level revealed acceptable fit with the exception of the total EQ model.Practical/managerial implications: This study supports the claim of reliability and validity ofthe EQ-i 2.0 in the South African context.Contribution/value-add: The study contributes significantly to the international body of evidence regarding the psychometric properties of the EQ-i 2.0 and provides supporting evidence for the appropriate use of this assessment in South Africa.

  9. Designing and Psychometric Properties of Elderly Cognitive Empowerment Questionnaire of Individual Changes

    Directory of Open Access Journals (Sweden)

    Marjan Tarighat

    2017-05-01

    Full Text Available Background: Considering the growing elderly population and reducing their physical and mental abilities, and higher frequency of chronic diseases, attention to their empowerment is considered a necessity. So, the aim of this study was to designing and psychometric properties of elderly cognitive empowerment questionnaire of individual changes. Material and Methods: In this methodologic study, 294 elderly aged 60-70 years were studied by using a convenience sampling method in Bushehr city. Waltz 2010 was used to design the questionnaire. According to targeted literature review and available documents about the empowerment of the elderly, the initial version of the questionnaire was designed with 42 items. After confirming the content validity of questionnaire by 10 medical specialists, exploratory factor analysis was performed using the construct validity. Its reliability was determined by calculating Cronbach's alpha coefficient and test re-test. To analyze the data, SPSS version 18 was used. Results: The first version of the questionnaire cognitive empowerment of individual changes were designed with 42 items. In the process of psychometric evaluation no item were removed during the validity of the content. Content validity index and content validity ratio was calculated 0.82 and 0.95 respectively. Based on the exploratory factor analysis, the number of the questionnaire items was reduced to 32 and dimensions of empowerment were classified in the eight factors as physical abilities, self-respect, spirituality, commitment, performance role, positional identification, self-management and self-assessment which can predict with 75.787 %. Internal reliability of the questionnaire dimensions were ranged from 0.62-0.84 and external reliability was 0.96. Conclusion: Due to the appropriate reliability and validity of the questionnaire cognitive empowerment, applying it in training centers, treatment and rehabilitation centers is recommended to evaluate

  10. SSI response of a typical shear wall structure. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, J.J.; Schewe, E.C.; Maslenikov, O.R.

    1984-04-01

    The Simplified Methods project of the US NRC-funded Seismic Safety Margins Research Program (SSMRP) has as its goal the development of a methodology to perform routine seismic probabilistic risk assessments of commercial nuclear power plants. The study reported here develops calibration factors to relate best estimate response to design values accounting for approximations and simplifications in SSI analysis procedures. Nineteen cases were analyzed and in-structure response compared. The structure of interest was a typical shear wall structure. 6 references, 44 figures, 22 tables.

  11. Psychometrics of an internalized homophobia instrument for men.

    Science.gov (United States)

    Theodore, John L; Shidlo, Ariel; Zemon, Vance; Foley, Frederick W; Dorfman, David; Dahlman, Karen L; Hamid, Sahira

    2013-01-01

    The Multi-Axial Gay Men's Inventory-Men's Short Version (MAGI-MSV) assesses internalized homophobia via 20 items and 3 dimensions. This study extended the psychometric examination of the MAGI-MSV. The instrument was administered to 228 ethnically diverse HIV-negative gay men seeking counseling in New York City (mean age = 35, age range = 16-70). Following principal axis factoring and parallel analyses, 4 factors emerged and 14 items were retained. The descriptive labels for factors included gay self-assurance and worth, public appearance of homosexuality, and impact of HIV/AIDS on homosexuality. The new, fourth factor was named maladaptive measures to eliminate homosexuality.

  12. Psychometric Properties of the Dutch Rosenberg Self-Esteem Scale

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    Erik Franck

    2008-01-01

    Full Text Available Interest in self-esteem has been fuelled by the suggestion that level of self-esteem is associated with psychological well-being. In the present study, we translated the Rosenberg Self-Esteem Scale (RSES into the Dutch language and evaluated its psychometric properties in a sample of 442 adults. The results of both exploratory and confirmatory factor analyses confirmed that a single-factor solution provides the best fit. In addition, the Dutch RSES showed high internal consistency as well as high congruent validity. Overall, these findings support the usefulness of the Dutch RSES as a measure for global self-esteem.

  13. The development and psychometric testing of the horizontal violence scale.

    Science.gov (United States)

    Longo, Joy; Newman, David

    2014-12-01

    Inappropriate behaviors of healthcare workers can threaten the delivery of safe, quality care. The purpose of this research was to develop a research instrument specific to the construct of horizontal violence and conduct foundational psychometric testing of the newly developed instrument. The overall findings on the fit indices suggest that this model does adequately measure the underlying construct of horizontal violence. The instrument can be used as a way to determine the existence and extent of horizontal violence in practice settings and used to augment the study of the work environment, particularly in relation to healthy work environments.

  14. Psychometric evaluation of a hindi version of positive-negative affect schedule

    Directory of Open Access Journals (Sweden)

    R Pandey

    2008-01-01

    Full Text Available Background - The present paper reports the development and psychometric evaluation of a Hindi version of the Positive-Negative Affect Schedule (PANAS originally developed in English by Watson, Clark, and Tellegen (1988. The PANAS is widely used tool for assessment of positive and negative affect in clinical as well as non-clinical setting and has also been used as a differential diagnostic tool for distinguishing the clinical depression from anxiety. Material & Method - A Hindi version of the PANAS (PANAS-H was developed using the contemporary psychometric standards for developing transliteral equivalents and cross-cultural adaptation of psychological tests/scales. In order to evaluate the psychometric properties, the PANAS-H was administered on a relatively heterogeneous sample of 179 participants. The obtained data was subjected to an exploratory factor analysis (principal component analysis which identified two theoretically significant orthogonal factors. The mood adjectives reflecting the positive affect loaded significantly on factor-1 whereas the affective lexicons representing the negative emotional engagement loaded significantly on factor-2. On the basis of this pattern of factor loading the first factor was labeled as ′Positive Affect′ (PA and the second factor as ′Negative Affect′ (NA. Results : A significant but low negative correlation was observed between PA and NA which suggests that PA and NA are not independent of each other. Item analysis done for each subscales revealed that the Hindi affective lexicon used for tapping the dimensions of PA and NA are reliable and valid and form a homogeneous item-pool. Conclusion : The reliability of the PA and NA subscales as well as that of the whole scale was found to be highly satisfactory (0.804 for PA, 0.776 for NA, and 0.658 for full scale. Overall, the findings suggest that 1 the PANAS-H can reliably and validly measure the PA and NA of Hindi speaking individuals, and 2 the

  15. Psychometric validation of patient-reported outcome measures assessing chronic constipation

    Directory of Open Access Journals (Sweden)

    Nelson LM

    2014-09-01

    Full Text Available Lauren M Nelson,1 Valerie SL Williams,1 Sheri E Fehnel,1 Robyn T Carson,2 James MacDougall,3 Mollie J Baird,3 Stavros Tourkodimitris,2 Caroline B Kurtz,3 Jeffrey M Johnston31RTI Health Solutions, Durham, NC, USA; 2Forest Research Institute, Jersey City, NJ, USA; 3Ironwood Pharmaceuticals, Cambridge, MA, USABackground: Measures assessing treatment outcomes in previous CC clinical trials have not met the requirements described in the US Food and Drug Administration's guidance on patient-reported outcomes.Aim: Psychometric analyses using data from one Phase IIb study and two Phase III trials of linaclotide for the treatment of chronic constipation (CC were conducted to document the measurement properties of patient-reported CC Symptom Severity Measures.Study methods: Each study had a multicenter, randomized, double-blind, placebo-controlled, parallel-group design, comparing placebo to four doses of oral linaclotide taken once daily for 4 weeks in the Phase IIb dose-ranging study (n=307 and to two doses of linaclotide taken once daily for 12 weeks in the Phase III trials (n=1,272. The CC Symptom Severity Measures addressing bowel function (Bowel Movement Frequency, Stool Consistency, Straining and abdominal symptoms (Bloating, Abdominal Discomfort, Abdominal Pain were administered daily using interactive voice-response system technology. Intraclass correlations, Pearson correlations, factor analyses, F-tests, and effect sizes were computed.Results: The CC Symptom Severity Measures demonstrated satisfactory test–retest reliability and construct validity. Factor analyses indicated one factor for abdominal symptoms and another for bowel symptoms. Known-groups F-tests substantiated the discriminating ability of the CC Symptom Severity Measures. Responsiveness statistics were moderate to strong, indicating that these measures are capable of detecting change.Conclusion: In large studies of CC patients, linaclotide significantly improved abdominal and

  16. Scoring and psychometric validation of the Perception of Anticoagulant Treatment Questionnaire (PACT-Q©

    Directory of Open Access Journals (Sweden)

    Essers B

    2009-04-01

    Full Text Available Abstract Background The 'Perception of Anti-Coagulant Treatment Questionnaire' (PACT-Q was developed to assess patients' expectations of, and satisfaction with their anticoagulant treatment. This questionnaire needs to be finalised and psychometrically validated. Methods The PACT-Q was included in the United States, the Netherlands and France into three phase III multinational clinical trials conducted to evaluate efficacy and safety of a new long-acting anticoagulant drug (idraparinux compared to vitamin K antagonist (VKA. PACT-Q was administered to patients with deep venous thrombosis (DVT, atrial fibrillation (AF or pulmonary embolism (PE at Day 1, to assess patients' expectations, and at 3 and 6 months to assess patients' satisfaction and treatment convenience and burden. The final structure of the PACT-Q (Principal Component Analysis – PCA – with Varimax Rotation was first determined and its psychometric properties were then measured with validity of the structure (Multitrait analysis, internal consistency reliability (Cronbach's alpha coefficients and known-group validity. Results PCA and multitrait analyses showed the multidimensionality of the "Treatment Expectations" dimension, comprising 7 items that had to be scored independently. The "Convenience" and "Burden of Disease and Treatment" dimensions of the hypothesised original structure of the questionnaire were combined, thus resulting in 13 items grouped into the single dimension "Convenience". The "Anticoagulant Treatment Satisfaction" dimension remained unchanged and included 7 items. All items of the "Convenience" and "Anticoagulant Treatment Satisfaction" dimensions displayed good convergent and discriminant validity. The internal consistency reliability was good, with a Cronbach's alpha of 0.84 for the "Convenience" dimension, and 0.76 for the "Anticoagulant Treatment Satisfaction" dimension. Known-group validity was good, especially with regard to occurrence of

  17. Beliefs about research and social work practice: a systematic psychometric review of scales.

    Science.gov (United States)

    Gregory, Virgil L

    2015-01-01

    The purpose of the author in this systematic psychometric review includes: providing social work researchers, educators, and administrators with a summary of descriptive psychometric information pertaining to scales which measure social workers' beliefs about research and social work practice, evaluating chronological changes in psychometric/statistical methodology, and summarizing the role current and future scale development efforts have in improving the use of evidence-based social work practice. Using predetermined inclusion and exclusion criteria, electronic databases and reference lists of included studies were reviewed and coded for methodological and psychometric properties. Seventeen studies satisfied inclusion and exclusion criteria. Eleven unique scales measuring social worker beliefs regarding research and social work practice were identified. The majority of scales and subscales had Cronbach's alphas that exceeded .70. Most of the scales had evidence of content, factorial, construct, and/or criterion validity. Strategies for improving psychometric research and implications for evidence-based social work practice are discussed.

  18. Psychometrics and its discontents: an historical perspective on the discourse of the measurement tradition.

    Science.gov (United States)

    Schoenherr, Jordan Richard; Hamstra, Stanley J

    2016-08-01

    Psychometrics has recently undergone extensive criticism within the medical education literature. The use of quantitative measurement using psychometric instruments such as response scales is thought to emphasize a narrow range of relevant learner skills and competencies. Recent reviews and commentaries suggest that a paradigm shift might be presently underway. We argue for caution, in that the psychometrics approach and the quantitative account of competencies that it reflects is based on a rich discussion regarding measurement and scaling that led to the establishment of this paradigm. Rather than reflecting a homogeneous discipline focused on core competencies devoid of consideration of context, the psychometric community has a history of discourse and debate within the field, with an acknowledgement that the techniques and instruments developed within psychometrics are heuristics that must be used pragmatically.

  19. The Stigma of Suicide Scale. Psychometric properties and correlates of the stigma of suicide.

    Science.gov (United States)

    Batterham, Philip J; Calear, Alison L; Christensen, Helen

    2013-01-01

    There are presently no validated scales to adequately measure the stigma of suicide in the community. The Stigma of Suicide Scale (SOSS) is a new scale containing 58 descriptors of a "typical" person who completes suicide. To validate the SOSS as a tool for assessing stigma toward suicide, to examine the scale's factor structure, and to assess correlates of stigmatizing attitudes. In March 2010, 676 staff and students at the Australian National University completed the scale in an online survey. The construct validity of the SOSS was assessed by comparing its factors with factors extracted from the Suicide Opinion Questionnaire (SOQ). Three factors were identified: stigma, isolation/depression, and glorification/normalization. Each factor had high internal consistency and strong concurrent validity with the Suicide Opinion Questionnaire. More than 25% of respondents agreed that people who suicided were "weak," "reckless," or "selfish." Respondents who were female, who had a psychology degree, or who spoke only English at home were less stigmatizing. A 16-item version of the scale also demonstrated robust psychometric properties. The SOSS is the first attitudes scale designed to directly measure the stigma of suicide in the community. Results suggest that psychoeducation may successfully reduce stigma.

  20. Psychometric analysis of the Systematic Observation of Red Flags for autism spectrum disorder in toddlers.

    Science.gov (United States)

    Dow, Deanna; Guthrie, Whitney; Stronach, Sheri T; Wetherby, Amy M

    2017-04-01

    The purpose of this study was to examine the utility of the Systematic Observation of Red Flags as an observational level-two screening measure to detect risk for autism spectrum disorder in toddlers when used with a video-recorded administration of the Communication and Symbolic Behavior Scales. Psychometric properties of the Systematic Observation of Red Flags were examined in a sample of 247 toddlers of 16- to 24 months old: 130 with autism spectrum disorder, 61 with developmental delays, and 56 typically developing. Individual items were examined for performance to create an algorithm with improved sensitivity and specificity, yielding a total Composite score and Domain scores for Social Communication and Restricted Repetitive Behaviors. Codes indicating clear symptom presence were collapsed to yield a count of the number of Red Flags for the overall scale and each symptom domain. Results indicated significant group differences with large effects for the Composite, both Domain scores, and Red Flags score, and good discrimination (area under the curve = 0.84-0.87) between autism spectrum disorder and nonspectrum groups for the Composite, Social Communication Domain, and Social Communication Red Flags score. The Systematic Observation of Red Flags provides an observational screening measure for 16- to 24-month-olds with good discrimination, sensitivity, and specificity. A cutoff of 20 on the Composite is recommended to optimally detect autism spectrum disorder risk.

  1. Psychometric evaluation of the five-factor Modified Drinking Motives Questionnaire--Revised in undergraduates.

    Science.gov (United States)

    Grant, Valerie V; Stewart, Sherry H; O'Connor, Roisin M; Blackwell, Ekin; Conrod, Patricia J

    2007-11-01

    The psychometric properties of the Modified Drinking Motives Questionnaire--Revised (Modified DMQ-R) [Blackwell, E., & Conrod, P. J. (2003). A five-dimensional measure of drinking motives. Unpublished manuscript, Department of Psychology, University of British Columbia], based on a five-factor model of drinking motives with separate coping-anxiety and coping-depression factors, were evaluated in undergraduates. In Study 1, confirmatory factor analyses supported the correlated five-factor model in two samples of undergraduate drinkers (N=726 and N=603). Furthermore, the five-factor model fit the data better than a four-factor model conceptually equivalent to that of Cooper [Cooper, M. L. (1994). Motivations for alcohol use among adolescents: Development and validation of a four-factor model. Psychological Assessment, 6, 117-128] (i.e., with coping-anxiety and coping-depression items constrained to a single factor). In Study 1, drinking motives were predictive of concurrent drinking frequency and typical number of alcoholic beverages per occasion, over and above demographics. In Study 2, the Modified DMQ-R scores showed good to excellent test-retest reliability in a sample of undergraduates who were relatively frequent drinkers (N=169). Also, drinking motives prospectively predicted number of drinks consumed per week and alcohol-related problems, over and above demographics and initial alcohol use. Notably, coping-anxiety and coping-depression motives were distinctly related to alcohol consumption and alcohol problems.

  2. The typical mass ratio and typical final spin in supermassive black hole mergers

    CERN Document Server

    Gergely, László Á

    2012-01-01

    We prove that merging supermassive black holes (SMBHs) typically have neither equal masses, nor is their mass ratio too extreme. The majority of such mergers fall into the mass ratio range of 1:30 to 1:3, implying a spin flip during the inspiral. We also present a simple expression for the final spin $\\chi_{f}$ of the emerging SMBH, as function of the mass ratio, initial spin magnitudes, and orientation of the spins with respect to the orbital plane and each other. This formula approximates well more cumbersome expressions obtained from the fit with numerical simulations. By integrating over all equally likely orientations for precessing mergers we determine a lower approximant to the final spin distribution as function of the mass ratio alone. By folding this with the derived mass ratio dependent merger rate we derive a lower bound to the typical final spin value after mergers. We repeat the procedure deriving an upper bound for the typical spin in the case when the spins are aligned to the orbital angular m...

  3. Volatile S-nitrosothiols and the typical smell of cancer.

    Science.gov (United States)

    Schroeder, Wolfgang

    2015-03-09

    An unconventional approach to investigations into the identification of typical volatile emissions during illnesses gives rise to the proposal of a new class of cancer markers. Until now, cancer markers seem not to have been conclusively identified, though the obvious behavior of dogs points to their existence. The focus has been directed towards molecules containing sulfurous functionalities. Among such compounds, S-nitrosothiols (SNOs) are known to be involved in important physiological processes in living organisms and they are described as being typically elevated in cancer. Volatile SNOs (vSNOs) are proposed to be the source of the significant smell of cancer. Synthetic vSNOs are known to have lifetimes of between some minutes and several hours, which may be the main reason as to why they have been ignored until now, and also for the inability of analytics to detect them in vivo. Based on typical structures occurring in the volatile sulfur organics being emitted from human breath, four vSNOs have been synthesized and characterized by tandem mass spectrometry and gas chromatography/mass spectrometry. Simulating the relatively fatty consistency of cancer tissue by diluting the samples in n-decane, surprisingly reduces their tendency to decompose to lifetimes of weeks even at room temperature. A sniffer dog was trained with the synthetic vSNOs, and the results of the tests indicate that synthetic and cancer smells are very similar or even the same. The findings can be a clue for further target-oriented systematic optimization of existing sensitive measurement methods to prove vSNOs as cancer emissions and finally establish future methods for cancer diagnosis based on screening for this new class of volatile illness markers.

  4. Diversity of amino acids in a typical chernozem of Moldova

    Science.gov (United States)

    Frunze, N. I.

    2014-12-01

    The content and composition of the amino acids in typical chernozems were studied. The objects of the study included a reference soil under an old fallow and three variants under fodder crop rotations: not fertilized, with mineral fertilizers, and with organic fertilizers. The contents of 18 amino acids were determined in these soils. The amino acids were extracted by the method of acid hydrolysis and identified by the method of ion-exchange chromatography. The total content of most of the amino acids was maximal in the reference soil; it was much lower in the cultivated soils and decreased in the following sequence: organic background > mineral background > no fertilization. The diversity of amino acids was evaluated quantitatively using different parameters applied in ecology for estimating various aspects of the species composition of communities (Simpson, Margalef, Menhinick, and Shannon's indices). The diversity and contribution of different amino acids to the total pool of amino acids also varied significantly in the studied variants. The maximum diversity of amino acids and maximum evenness of their relative abundance indices were typical of the reference chernozem; these parameters were lower in the cultivated soils. It was concluded that the changes in the structure of the amino acids under the impact of agricultural loads are similar to those that are usually observed under stress conditions.

  5. Recommended Concentration Limits of Typical Indoor Air Contaminants

    Institute of Scientific and Technical Information of China (English)

    LV Chao; JIANG Yun-tao; ZHAO Jia-ning

    2009-01-01

    From the view of both objective and subjective factors.the indoor air quality(IAQ)evaluation was considered.Carbon dioxide (CO2) and formaldehyde (HCHO) were selected as the typical contaminants of indoor air,and the evaluation method of logarithmic index was adopted as the evaluation means of IAQ.Then the recommended limits (RL) of typical contaminants CO2 and HCHO were given through analysis and calcula-tion.The limits of CO2 and HCHO in Indoor Air Quahty Standard of China or other existing standards probably correspond to the level of PD=25(%).The result shows that the existing standards fail to meet the require-ment of the definition of"acceptable indoor air quality",that is to say,less than 20% of the people express dis-satisfaction.When PD=20%,RL of CO2 and HCHO are 728×10-6 and 0.068×10-6 respectively,which are stricter than the limits in the existing standards.The method proposed in this paper is applicable to 13.1%≤PD≤86.7%.

  6. Nurse Competence Scale--psychometric testing in a Norwegian context.

    Science.gov (United States)

    Wangensteen, Sigrid; Johansson, Inger S; Nordström, Gun

    2015-01-01

    The aim was to test the construct validity of the Nurse Competence Scale. The Nurse Competence Scale has been used in hospital settings for various purposes in several countries. Despite this, confirmatory factor analyses are scarcely reported. The present study is based on re-analyses of data from 2007 (i.e. psychometric testing) and 593 newly graduated nurses working in various contexts were included. Confirmatory as well as exploratory factor analyses (Principal Component Analysis) were carried out. The original 7-factor model of the Nurse Competence Scale (73 items) was not confirmed. The exploratory factor analyses resulted in a Norwegian Nurse Competence Scale consisting of 46 items in the following competence categories: Planning and delivery of care, Teaching functions, Professional leadership, Research utilization and nursing values and Professional awareness. The results underline the needs for psychometric testing of an instrument after translation processes. The instrument is suitable for describing and comparing nurse competence for various reasons. It may also be helpful in creating competence development programs at an individual as well as at an organizational level. Further studies with a broader sample are recommended.

  7. Exploring the "psychometric paradigm": comparisons between aggregate and individual analyses.

    Science.gov (United States)

    Marris, C; Langford, I; Saunderson, T; O'Riordan, T

    1997-06-01

    The "psychometric paradigm" developed by Slovic, Fischhoff, and Lichtenstein was a landmark in research about public attitudes toward risks. One problem with work, however, was that (at least initially) it did not attempt to distinguish between individuals or groups of people, except "experts" vs. "lay people." This paradigm produced a "cognitive map" of hazards, and the assumption seemed to be that the characteristics identified were inherent attributes of risk. This paper examines the validity of this assumption. A questionnaire survey similar to those designed by Slovic et al. was conducted, but the data were analyzed at both the aggregate level, using mean scores, and at the level of individuals (N = 131 Norwich residents). The results reported here demonstrate that (1) individuals vary in their perception of the same risk issue; (2) individuals vary in their rating of the same risks characteristics on the same risk issue; and (3) some of the strong intercorrelations observed between risk characteristics at the aggregate level are not supported when the same data are analysed at the level of individuals. Despite these findings, the relationship between risk characteristics and risk perceptions inferred by the psychometric paradigm did hold true at the level of individuals, for most--but not all--of the characteristics. In particular, the relationship between "lack of knowledge to those exposed" and risk perceptions appears to be a complex one, a finding which has important implications for risk communication strategies.

  8. The Metacognitions about Online Gaming Scale: Development and psychometric properties.

    Science.gov (United States)

    Spada, Marcantonio M; Caselli, Gabriele

    2017-01-01

    Recent research has suggested that metacognitions may play a role across the spectrum of addictive behaviours. The goal of our studies was to develop the first self-report scale of metacognitions about online gaming. We conducted two studies with samples of online gamers (n=225, n=348) to test the structure and psychometric properties of the Metacognitions about Online Gaming Scale and examined its capacity to predict weekly online gaming hours and Internet addiction. Exploratory and confirmatory factor analyses supported a three-factor solution: positive metacognitions about online gaming, negative metacognitions about the uncontrollability of online gaming, and negative metacognitions about the dangers of online gaming. Internal consistency, predictive and divergent validity were acceptable. All the factors of the Metacognitions about Online Gaming Scale correlated positively with weekly online gaming hours and Internet addiction. Regression analyses showed that negative metacognitions about the uncontrollability of online gaming and levels of Internet addiction were the only significant predictors of weekly online gaming hours, and that positive metacognitions about online gaming and negative metacognitions about the uncontrollability of online gaming were the only significant predictors of Internet addiction. The Metacognitions about Online Gaming Scale was shown to possess good psychometric properties, as well as predictive and divergent validity within the populations that were tested. Copyright © 2015 Elsevier Ltd. All rights reserved.

  9. Questionnaire-based assessment of executive functioning: Psychometrics.

    Science.gov (United States)

    Castellanos, Irina; Kronenberger, William G; Pisoni, David B

    2016-11-14

    The psychometric properties of the Learning, Executive, and Attention Functioning (LEAF) scale were investigated in an outpatient clinical pediatric sample. As a part of clinical testing, the LEAF scale, which broadly measures neuropsychological abilities related to executive functioning and learning, was administered to parents of 118 children and adolescents referred for psychological testing at a pediatric psychology clinic; 85 teachers also completed LEAF scales to assess reliability across different raters and settings. Scores on neuropsychological tests of executive functioning and academic achievement were abstracted from charts. Psychometric analyses of the LEAF scale demonstrated satisfactory internal consistency, parent-teacher inter-rater reliability in the small to large effect size range, and test-retest reliability in the large effect size range, similar to values for other executive functioning checklists. Correlations between corresponding subscales on the LEAF and other behavior checklists were large, while most correlations with neuropsychological tests of executive functioning and achievement were significant but in the small to medium range. Results support the utility of the LEAF as a reliable and valid questionnaire-based assessment of delays and disturbances in executive functioning and learning. Applications and advantages of the LEAF and other questionnaire measures of executive functioning in clinical neuropsychology settings are discussed.

  10. The psychometric refinement of the Materials Concept Inventory (MCI)

    Science.gov (United States)

    Corkins, James

    The purpose of this study was to evaluate the psychometric properties of the Materials Concept Inventory (MCI) and then recommend revisions. The MCI was administered to a sample of 303 undergraduate engineering students enrolled in a materials engineering course taught by an instructor unrelated to this study. The MCI demonstrated adequate reliability (Cronbach's alpha was .73) and strong discriminatory power (Ferguson's delta was 0.96). A pretest MCI was given only two days into the course and was able to predict the final course grade (r = .30, p fit by the empirical data [chi-squared (194) = 196.03, p = .426; and root mean square error approximation (RMSEA) was .007; and comparative fit index (CFI) was .996]. The Cronbach's alpha of the refined-MCI was 0.75, suggesting 'good' reliability. The six factors could only be interpreted by an integration of cognitive processes with content. Those six factors were labeled: (1) compare and contrast ductile and brittle material, (2) analyze structure and how it changes due to defects arising from stretching, (3) understand and analyze the structure and properties of glass, (4) analyze structure and how it changes due to defects arising from bending, (5) understand and analyze the structure and properties of metals, and (6) synthesize and apply graphs and proportions with relation to various materials engineering concepts. Results related to the psychometrics of the refined version of the Materials Concept Inventory are promising, but based on this study's results, further revision may be required.

  11. The Greek Nurses' job satisfaction scale: development and psychometric assessment.

    Science.gov (United States)

    Moumtzoglou, Anastasius

    2010-01-01

    The growing literature relating to job satisfaction among nurses concludes that more research is required to understand the organizational, professional, and personal variables that improve nurse satisfaction and retention. This study developed and psychometrically tested a nurse satisfaction questionnaire, suitable for the nurses' working conditions in Greece. A cross-sectional survey, in Greek, was conducted in three public hospitals. Two-hundred and twenty-five Greek nurses evaluated the psychometric properties of the Greek Nurses' Job Satisfaction Scale (GNJSS). The 18-item questionnaire showed a high degree of internal consistency (Cronbach's alpha = 0.907) and revealed four factors that are consistent with the predetermined subscales and the conceptual base of the GNJSS. The factors, which explain 62.420% of variance, are associated with interaction and recognition, leadership style and organizational policies, self-growth and responsibility, and remuneration and work itself. Although it would be useful to carry out further analyses to assess time-based properties of reliability, the GNJSS questionnaire is a reliable and valid instrument to assess nurses' job satisfaction.

  12. Further psychometric analysis of the Florida Obsessive-Compulsive Inventory.

    Science.gov (United States)

    Aldea, Mirela A; Geffken, Gary R; Jacob, Marni L; Goodman, Wayne K; Storch, Eric A

    2009-01-01

    This study examined the psychometric properties of the Florida Obsessive-Compulsive Inventory (FOCI [Storch, E. A., Stigge-Kaufman, D., Bagner, D., Merlo, L. J., Shapira, N. A., Geffken, G. R., et al. (2007). Florida Obsessive-Compulsive Scale: development, reliability, and validity. Journal of Clinical Psychology, 63, 851-859]). Participants were 89 adults with OCD presenting for treatment at a specialty clinic. A trained clinician administered the Yale-Brown Obsessive Compulsive Scale and patients completed the FOCI, Obsessive-Compulsive Inventory-Revised, Beck Depression Inventory-Second Edition, and State Trait Anxiety Inventory at baseline and following 14 weekly or daily cognitive behavioral therapy sessions. The internal consistency of FOCI Symptom Checklist and Severity Scale were good, and the concurrent and divergent validity of the FOCI Symptom Checklist and Severity Scale was supported through its associations with clinician-rated OCD symptom severity, and self-reported OCD, depressive, and anxiety measures. In addition, sensitivity to cognitive-behavioral treatment effects was shown as the Severity Scale scores were significantly lower following treatment compared to baseline. These findings not only replicate Storch et al. [Storch, E. A., Stigge-Kaufman, D., Bagner, D., Merlo, L. J., Shapira, N. A., Geffken, G. R., et al. (2007). Florida Obsessive-Compulsive Scale: development, reliability, and validity. Journal of Clinical Psychology, 63, 851-859] but also add unique construct validity data in support of the psychometrics of the FOCI.

  13. Schizotypal Personality Questionnaire-Brief Revised: psychometric replication and extension.

    Science.gov (United States)

    Callaway, Dallas A; Cohen, Alex S; Matthews, Russell A; Dinzeo, Thomas

    2014-01-01

    The psychometric screening and detection of schizotypy through the use of concise self-report assessment instruments such as the Schizotypal Personality Questionnaire-Brief Revised (SPQ-BR; Cohen, Matthews, Najolia, & Brown, 2010) enables an expeditious identification of individuals at putatively elevated risk to develop schizophrenia-spectrum disorders. Using 2 large, culturally diverse, independent samples, this study expanded the psychometric evaluation of this instrument by presenting a series of confirmatory factor analyses; reviewing internal consistency reliabilities; and evaluating the construct validity of the scale by way of examining group differences in SPQ-BR scores between individuals with and without self-reported family histories of schizophrenia. The results indicate a 2-tier factor solution of the measure and indicate strong internal reliability for the scale. Findings regarding construct validity of the SPQ-BR are more variable with the Cognitive-Perceptual Deficits superordinate factor receiving the strongest evidentiary support. Limitations of this study and directions for future research are discussed.

  14. Factors influencing success in quality-improvement collaboratives: development and psychometric testing of an instrument

    Directory of Open Access Journals (Sweden)

    Grol Richard PTM

    2010-10-01

    Full Text Available Abstract Background To increase the effectiveness of quality-improvement collaboratives (QICs, it is important to explore factors that potentially influence their outcomes. For this purpose, we have developed and tested the psychometric properties of an instrument that aims to identify the features that may enhance the quality and impact of collaborative quality-improvement approaches. The instrument can be used as a measurement instrument to retrospectively collect information about perceived determinants of success. In addition, it can be prospectively applied as a checklist to guide initiators, facilitators, and participants of QICs, with information about how to perform or participate in a collaborative with theoretically optimal chances of success. Such information can be used to improve collaboratives. Methods We developed an instrument with content validity based on literature and the opinions of QIC experts. We collected data from 144 healthcare professionals in 44 multidisciplinary improvement teams participating in two QICs and used exploratory factor analysis to assess the construct validity. We used Cronbach's alpha to ascertain the internal consistency. Results The 50-item instrument we developed reflected expert-opinion-based determinants of success in a QIC. We deleted nine items after item reduction. On the basis of the factor analysis results, one item was dropped, which resulted in a 40-item questionnaire. Exploratory factor analysis showed that a three-factor model provided the best fit. The components were labeled 'sufficient expert team support', 'effective multidisciplinary teamwork', and 'helpful collaborative processes'. Internal consistency reliability was excellent (alphas between .85 and .89. Conclusions This newly developed instrument seems a promising tool for providing healthcare workers and policy makers with useful information about determinants of success in QICs. The psychometric properties of the instrument are

  15. The psychometric properties of the 'Hospital Survey on Patient Safety Culture' in Dutch hospitals

    Directory of Open Access Journals (Sweden)

    Wagner Cordula

    2008-11-01

    Full Text Available Abstract Background In many different countries the Hospital Survey on Patient Safety Culture (HSOPS is used to assess the safety culture in hospitals. Accordingly, the questionnaire has been translated into Dutch for application in the Netherlands. The aim of this study was to examine the underlying dimensions and psychometric properties of the questionnaire in Dutch hospital settings, and to compare these results with the original questionnaire used in USA hospital settings. Methods The HSOPS was completed by 583 staff members of four general hospitals, three teaching hospitals, and one university hospital in the Netherlands. Confirmatory factor analyses were performed to examine the applicability of the factor structure of the American questionnaire to the Dutch data. Explorative factor analyses were performed to examine whether another composition of items and factors would fit the data better. Supplementary psychometric analyses were performed, including internal consistency and construct validity. Results The confirmatory factor analyses were based on the 12-factor model of the original questionnaire and resulted in a few low reliability scores. 11 Factors were drawn with explorative factor analyses, with acceptable reliability scores and a good construct validity. Two items were removed from the questionnaire. The composition of the factors was very similar to that of the original questionnaire. A few items moved to another factor and two factors turned out to combine into a six-item dimension. All other dimensions consisted of two to five items. Conclusion The Dutch translation of the HSOPS consists of 11 factors with acceptable reliability and good construct validity. and is similar to the original HSOPS factor structure.

  16. Preliminary evidence for good psychometric properties of the Norwegian version of the Brief Problems Monitor (BPM).

    Science.gov (United States)

    Richter, Jörg

    2015-04-01

    Methods to assess intervention progress and outcome for frequent use are needed. To provide preliminary information about psychometric properties for the Norwegian version of the Brief Problems Monitor. Cronbach's alpha scores and intra-class correlation coefficients as indicators for internal consistency (reliability) and Pearson correlation coefficients between corresponding subscales of the long and short ASEBA form versions as well as multiple regression coefficients to explore the predictive power of the reduced item-set related to the corresponding scale-scores of the long version were calculated in large, representative data sets of Norwegian children and adolescents. Cronbach's alpha scores of the Norwegian version of the BPM subscales varied between 0.67 (attention BPM-youth) and 0.88 (attention BPM-teacher) and between 0.90 (BPM-youth) and 0.96 (BPM-teacher) for its total problem score. Corresponding subscales from the long versions and the BPM as well as the total problems scores were closely correlated with coefficients of high effect size (all r > 0.80). The variance of the items of the BPM explained about three-quarters or more of the variance in the corresponding subscales of the long version. The Norwegian BPM has good psychometric properties in terms of 1) being acceptable to good internal consistency and in terms of 2) regression coefficients of high effect size from the BPM items to the problem-scale scores of the long versions as validity indicators. Its use in clinical practice and research can be recommended.

  17. Psychometric assessment of the Brazilian version of the Male Body Dissatisfaction Scale

    Directory of Open Access Journals (Sweden)

    Pedro Henrique Berbert de Carvalho

    2015-08-01

    Full Text Available Background The study of male body image has increased substantially, but there are few assessment tools available for this population. The Male Body Dissatisfaction Scale (MBDS has been widely used among students to research body image disturbances and eating disorders. However, the psychometric properties of this instrument have not been tested in the Brazilian context.Objectives To explore the psychometric properties (convergent validity, internal consistency, test-retest reliability and factor structure of the Brazilian version of the MBDS.Methods Two-hundred sixty-four undergraduate students were evaluated. Pearson’s correlation was used to test the convergent validity of the MBDS and the Drive for Muscularity Scale, the Swansea Muscularity Attitudes Questionnaire, the Rosenberg Self-Esteem Scale, the Beck Depression Inventory, the Eating Attitudes Test-26, and the Commitment to Exercise Scale. Test-retest reliability was evaluated using t-tests for repeated measures and by calculating the coefficient of intraclass correlation. Exploratory factor analysis was conducted, and Cronbach’s α coefficients were determined. A significance level of 5% was adopted.Results The MBDS had an adequate factor structure, with two factors explaining 52.67% of the total variance. It showed excellent internal consistency (Cronbach’s α between 0.90 and 0.92, a high intraclass correlation coefficient (0.81, and convergent validity with the drive for muscularity, the psychological commitment to exercise, low self-esteem, and eating disorder risk behaviour measures.Discussion The MBDS appears to be a valid and reliable tool for evaluating Brazilian male body image dissatisfaction.

  18. PSYCHOMETRIC PROPERTY OF FATIGUE SEVERITY SCALE AND CORRELATION WITH DEPRESSION AND QUALITY OF LIFE IN CIRRHOTICS

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    Danusa ROSSI

    2017-10-01

    Full Text Available ABSTRACT BACKGROUND: Fatigue is a common complaint in cirrhotic patients and may be considered a debilitating symptom with negative impact on quality of life. Research on its etiology and treatment has been hampered by the lack of relevant and reproducible measures of fatigue. OBJECTIVE: To evaluate the psychometric properties of the Fatigue Severity Scale (FSS in cirrhotic patients and to correlate with depressive symptomatology and quality of life. METHODS: Cross-sectional study with a convenience sample of 106 cirrhotic patients, aged between 18 and 70 years, both genders, literate, pre and post liver transplantation in outpatient follow-up. Internal consistency, reproducibility, discriminant validity, criterion validity, construct validity, responsiveness criterion, depressive symptomatology and quality of life were evaluated through questionnaires between January and October 2015. RESULTS: The mean age was 54.75±9.9 years, 65.1% male and 32.1% of the sample had cirrhosis due to hepatitis C virus. The mean FSS score was 4.74±1.64. Cronbach’s alpha was 0.93, and the Intraclass Correlation Coefficient was 0.905 (95% CI: 0.813-0.952. For discriminant validity, FSS differentiated scores from different groups (P=0.009 and presented a correlation with the Modified Fatigue Impact Scale (r=0.606, P=0.002. FSS correlated significantly and positively with depressive symptomatology and correlated negatively with the SF-36 domains for construct validity. For responsiveness, no significant changes were observed in the fatigue scores in the pre and post-liver transplantation periods (P=0.327. CONCLUSION: FSS showed good psychometric performance in the evaluation of fatigue in patients with cirrhosis. Fatigue presented a strong correlation with depressive symptomatology and quality of life.

  19. Psychometric properties of assessment instruments for autism spectrum disorder: a systematic review of Brazilian studies

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    Bárbara Backes

    2014-07-01

    Full Text Available Objective To systematically review the scientific literature on the psychometric properties of international instruments for the assessment of autism spectrum disorder (ASD in the Brazilian population. Methods A search of bibliographic references was conducted in six electronic databases: PsycINFO, PubMed, IndexPsi, Lilacs, Capes (theses and dissertations and SciELO. The studies were selected by two independent researchers. Results The procedure identified 11 studies of the Brazilian population that encompassed six ASD assessment tools. Given the information provided, the adaptation of the M-CHAT, a screening instrument, was the best conducted. All steps of the adaptation process were described and the changes made to the final version of the instrument were presented, which was not addressed in other studies. In terms of reliability, all of the instruments that assessed internal consistency showed adequate values. In addition, the ADI-R and the CARS adaptations also satisfactorily contemplated inter-rater reliability and test-retest indices, respectively. Finally, all studies aiming to validate instruments showed evidence of validity and sensitivity, and specificity values above 0.90 were observed in the ASQ, ADI-R and ABC. Conclusion Considering both the psychometric aspects and the copyright information, the screening instrument that currently appears to be best indicated for clinical and research use is the M-CHAT. It was also noticed that there are still no specific ASD diagnostic tools available for use in Brazil. This lack of diagnostic instruments consists in a critical situation for the improvement of clinical practice and the development of research in this area.

  20. The negative affect repair questionnaire: factor analysis and psychometric evaluation in three samples

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    Scherer Anne

    2013-01-01

    Full Text Available Abstract Background Negative affect and difficulties in its regulation have been connected to several adverse psychological consequences. While several questionnaires exist, it would be important to have a theory-based measure that includes clinically relevant items and shows good psychometric properties in healthy and patient samples. This study aims at developing such a questionnaire, combining the two Gross [1] scales Reappraisal and Suppression with an additional response-focused scale called Externalizing Behavioral Strategies covering clinically relevant items. Methods The samples consisted of 684 students (mean age = 23.3, SD = 3.5; 53.6% female and 369 persons with mixed mental disorders (mean age = 36.0 SD = 14.6; 71.2% female. Items for the questionnaire were derived from existing questionnaires and additional items were formulated based on suggestions by clinical experts. All items start with “When I don’t feel well, in order to feel better…”. Participants rated how frequently they used each strategy on a 5-point Likert scale. Confirmatory Factor Analyses were conducted to verify the factor structure in two separate student samples and a clinical sample. Group comparisons and correlations with other questionnaires were calculated to ensure validity. Results After modification, the CFA showed good model fit in all three samples. Reliability scores (Cronbach’s α for the three NARQ scales ranged between .71 and .80. Comparisons between students and persons with mental disorders showed the postulated relationships, as did comparisons between male and female students and persons with or without Borderline Personality Disorder. Correlations with other questionnaires suggest the NARQ’s construct validity. Conclusions The results indicate that the NARQ is a psychometrically sound and reliable measure with practical use for therapy planning and tracking of treatment outcome across time. We advocate the integration

  1. Psychometric properties assessment of the Meister questionnaire (Polish version used in evaluating mental load among nurses

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    Grażyna Dębska

    2013-06-01

    Full Text Available Background: The objective of this study was to assess psychometric properties of the Polish version of the Meister questionnaire for subjective assessment of work-related mental load among nurses. Material and Methods: A group of 211 nurses (mean age, 43.1±7.26 participated in our study. In the process of adaptation stability (test-retest reliability and factorial validity were assessed. The Maslach Burnout Inventory (MBI was used as a tool for assessing construct validity. Results: Factor analysis of the questionnaire confirmed a very good fit between input data and factor model (Kaiser-Mayer-Olkin measure of 0.83. Selected variables, including overload, monotony, and non-specific load, explained 57%, 41%, and 66% of the variance, respectively. The analysis proved high validity of the tool, Cronbach alpha was 0.83 for the total score. The correlation factor for questions and scores in subscales was high. Repeated measurements resulted in similar outcomes, which proved the stability of this measure. The analysis of construct validity showed that overload, monotony, and non-specific load presented positive correlation with emotional exhaustion and depersonalisation. Correlation between variables was moderate (rHO = 0.39–0.58; p < 0.001. The total score indicated the following correlations: strong positive with emotional exhaustion (rHO = 0.6, p < 0.001, negative with personal achievements, and positive and moderate with depersonalisation (rHO = –0.14; p < 0.05, rHO = 0.48; p < 0.001. Conclusion: The Polish version of the Meister questionnaire meets all psychometric criteria and may be used for evaluating mental load among nurses. Med Pr 2013;64(3:349–358

  2. A psychometric appraisal of the Jefferson Scale of Empathy using law students

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    Williams B

    2016-07-01

    Full Text Available Brett Williams,1 Adiva Sifris,2 Marty Lynch1 1Department of Community Emergency Health and Paramedic Practice, Faculty of Medicine, Nursing and Health Sciences, 2Faculty of Law, Monash University, Frankston, VIC, Australia Background: A growing body of literature indicates that empathic behaviors are positively linked, in several ways, with the professional performance and mental well-being of lawyers and law students. It is therefore important to assess empathy levels among law students using psychometrically sound tools that are suitable for this cohort.Participants and methods: The 20-item Jefferson Scale of Empathy – Health Profession Students Version was adapted for a law context (eg, the word “health care” became “legal”, and the new Jefferson Scale of Empathy – Law Students (JSE-L-S version was completed by 275 students at Monash University, Melbourne, Australia. Data were subjected to principal component analysis.Results: Four factors emerged from the principal component analysis (“understanding the client’s perspective”, “responding to clients’ experiences and emotions”, “responding to clients’ cues and behaviors”, and “standing in clients’ shoes”, which accounted for 46.7% of the total variance. The reliability of the factors varied, but the overall 18-item JSE-L-S yielded a Cronbach’s alpha coefficient of 0.80. Several patterns among the item loadings were similar to those reported in studies using other versions of the Jefferson Scale of Empathy.Conclusion: The JSE-L-S appears to be a reliable measure of empathy among undergraduate law students, which could help provide insights into law student welfare and future performance as legal practitioners. Additional evaluation of the JSE-L-S is required to disambiguate some of the minor findings explored. Adjustments may improve the psychometric properties. Keywords: empathy, law, student, Jefferson, sympathy

  3. Multimodal neurophysiological and psychometric evaluation among patients with systemic lupus erythematosus

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    Shehata GA

    2011-04-01

    Full Text Available Ghaydaa A Shehata1, Yasser MB Elserogy2, Hossam Eddin K Ahmad2, Mohamed I Abdel-Kareem3, Ashraf M Al-kabeer4, Mohamed M Rayan2, Mohamed ES Abd El-Baky 1Department of Neurology; 2Department of Psychiatry, Assiut University, Egypt; 3Department of Rheumatology, Physical Medicine and Rehabilitation; 4Department of Internal Medicine, Faculty of Medicine, Al-Azhar University, Assiut, EgyptObjective: To determine some of the neuropsychiatric manifestations of systemic lupus erythematosus (SLE by applying multimodal neurophysiological and psychometric studies.Patients and methods: Twenty-six SLE patients were evaluated for neurological and psychiatric disorders and compared with 26 healthy controls matched for age, sex, education, and social class. The severity of SLE disease was assessed. Each subject was subjected to the following examinations: laboratory, neurophysiology, magnetic resonance imaging of the brain, transcranial duplex, Modified Mini-mental State Examination, Cognitive Assessment Scale Inventory, Hamilton Depression Scale, and Hamilton Anxiety Scale.Results: The mean age of subjects was 25.9 ± 8.9 years. The most prevalent neurological manifestations were (in order of frequency anxiety in 17 cases (65.4%, depression in 15 cases (57.7%, headache in 10 cases (38.5%, peripheral neuropathy in 7 cases (26.9%, seizures in 6 cases (23.1%, psychosis in 5 cases (19.2%, dementia in 4 cases (15.4%, radiculopathy in 4 cases (15.4%, myositis in 3 cases (11.5%, and stroke in 2 cases (7.7%. There was a significant affection in amplitude of the ulnar nerve, cognitive function impairment, and electroencephalography changes. There was a significant increased mean velocity and decreased Pulsatility Index of the most studied intracranial vessels in the patients.Conclusion: The use of multimodal neurophysiological, transcranial duplex, and psychometric scales increases the sensitivity for detecting nervous system involvement.Keywords: SLE, SLEDAI

  4. A questionnaire measuring staff perceptions of Lean adoption in healthcare: development and psychometric testing.

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    Kaltenbrunner, Monica; Bengtsson, Lars; Mathiassen, Svend Erik; Engström, Maria

    2017-03-24

    During the past decade, the concept of Lean has spread rapidly within the healthcare sector, but there is a lack of instruments that can measure staff's perceptions of Lean adoption. Thus, the aim of the present study was to develop a questionnaire measuring Lean in healthcare, based on Liker's description of Lean, by adapting an existing instrument developed for the service sector. A mixed-method design was used. Initially, items from the service sector instrument were categorized according to Liker's 14 principles describing Lean within four domains: philosophy, processes, people and partners and problem-solving. Items were lacking for three of Liker's principles and were therefore developed de novo. Think-aloud interviews were conducted with 12 healthcare staff from different professions to contextualize and examine the face validity of the questionnaire prototype. Thereafter, the adjusted questionnaire's psychometric properties were assessed on the basis of a cross-sectional survey among 386 staff working in primary care. The think-aloud interviews led to adjustments in the questionnaire to better suit a healthcare context, and the number of items was reduced. Confirmatory factor analysis of the adjusted questionnaire showed a generally acceptable correspondence with Liker's description of Lean. Internal consistency, measured using Cronbach's alpha, for the factors in Liker's description of Lean was 0.60 for the factor people and partners, and over 0.70 for the three other factors. Test-retest reliability measured by the intra-class correlation coefficient ranged from 0.77 to 0.88 for the four factors. We designed a questionnaire capturing staff's perceptions of Lean adoption in healthcare on the basis of Liker's description. This Lean in Healthcare Questionnaire (LiHcQ) showed generally acceptable psychometric properties, which supports its usability for measuring Lean adoption in healthcare. We suggest that further research focus on verifying the usability of

  5. On the psychometric properties of the aggressiveness-IAT for children and adolescents.

    Science.gov (United States)

    Lemmer, Gunnar; Gollwitzer, Mario; Banse, Rainer

    2015-01-01

    In research on aggression, implicit association tests (IATs) have been constructed to elucidate automatic processes involved in aggressiveness. Despite an increasing number of applications of the "Aggressiveness-IAT" in basic and applied research, the psychometric properties of this method for measuring an automatic aggressive self-concept have not been comprehensively investigated. Although the Aggressiveness-IAT has been used both as a cross-situationally consistent trait measure and as a measure to indicate situational changes, prior studies have not tested to what extent it reliably captures a stable trait vs. an occasion-specific aggressive self-concept. The present research scrutinizes the psychometric properties of the Aggressiveness-IAT by addressing two issues. First, we tested the reliability, consistency, and occasion specificity of the Aggressiveness-IAT in a longitudinal panel study with four waves and 574 Austrian school children/adolescents by applying latent-state trait (LST) theory. Second, we validated latent trait scores of the IAT vis-à-vis other measures either clearly related to aggression or not. Results demonstrate that 20-30% of the variance in children's and adolescents' IAT scores is situation-unspecific (i.e., "stable"), whereas 36-50% are situation-specific. Regarding its construct validity, the Aggressiveness-IAT is correlated with explicit measures of aggression and related constructs, but it is not associated with discriminant variables (e.g., school achievement). Implications for using the Aggressiveness-IAT are discussed in the light of these findings. Aggr. Behav. 41:84-95 2015. © 2014 Wiley Periodicals, Inc.

  6. The psychometric evaluation of Korean translation of the Personal Resource Questionnaire 85-Part 2.

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    Han, Hae-Ra; Kim, Miyong T; Weinert, Clarann

    2002-01-01

    Although the Personal Resource Questionnaire (PRQ 85-Part 2) has been widely used to measure perceived level of social support, results of psychometric evaluation of the measure with a Korean population are not currently available in the literature. To assess the psychometric properties of the Korean language version of the PRQ 85. An empirical validation of the theoretical relationships among the construct, social support, as measured by the PRQ 85, and other related constructs was conducted. In addition, factor structure comparison with a cross-validation technique was utilized on a combined sample of 555 Korean adults from three independent studies. Construct validity for the Korean PRQ 85 was evidenced by statistically significant correlations of perceived social support with the theoretically relevant variables such as depression and psychosocial adjustment. Using principal axis factoring with an oblique rotation, the two-factor solution was found to be most satisfactory in the first random sample and was cross-validated in the second sample, accounting for 52% and 54.1% of the total variance, respectively. Inspecting the distribution of variables within the factors, however, only the first factor appeared to be a construct-related factor; the second factor, which was exclusively represented by negatively keyed items, was method-related. The findings suggest that a one-factor solution can be used to accurately describe a substantive (or construct-related) factor pattern of the Korean version of the PRQ 85. Although researchers generally agree that negatively worded questions are important in order to minimize the "response bias," this approach appeared to be problematic for Koreans who used the translated PRQ 85. Further research is warranted to explicate this important methodological issue in cross-cultural instrumentation.

  7. Aeroelastic Calculations Using CFD for a Typical Business Jet Model

    Science.gov (United States)

    Gibbons, Michael D.

    1996-01-01

    Two time-accurate Computational Fluid Dynamics (CFD) codes were used to compute several flutter points for a typical business jet model. The model consisted of a rigid fuselage with a flexible semispan wing and was tested in the Transonic Dynamics Tunnel at NASA Langley Research Center where experimental flutter data were obtained from M(sub infinity) = 0.628 to M(sub infinity) = 0.888. The computational results were computed using CFD codes based on the inviscid TSD equation (CAP-TSD) and the Euler/Navier-Stokes equations (CFL3D-AE). Comparisons are made between analytical results and with experiment where appropriate. The results presented here show that the Navier-Stokes method is required near the transonic dip due to the strong viscous effects while the TSD and Euler methods used here provide good results at the lower Mach numbers.

  8. Shielding of gamma radiation by typical European houses

    Science.gov (United States)

    Meckbach, Reinhard; Jacob, Peter; Paretzke, Herwig G.

    1987-03-01

    The shielding of gamma radiation by typical European houses has been investigated using a Monte Carlo photon transport code. Sources of the gamma radiation are activity deposited on the building and its surroundings and air-borne radionuclides in an semi-infinite cloud. Results are given for different source energies and at various locations inside and outside of the buildings. The effects of deposition on nearby trees and of shielding by neighbouring buildings was investigated. A comparison has been made with results obtained for the same buildings by the point kernel buildup factor method. More than an order of magnitude underestimations by the point kernel method are shown to arise in certain cases.

  9. Application of the"typical"in artistic creation

    Institute of Scientific and Technical Information of China (English)

    刘臣臣

    2014-01-01

    Art in the creation of the"typical"is the typical art. Its meaning is often explained as: refers to artists through individual and nature created, some essence and law can reflect the reality of life, but also has the unique feature, which show some times people's aesthetic ideal, and showed the artists own unique aesthetic feeling of artistic image. Mainly refers to the character image, known as the "typical character" "typical character" or"typical character", but also refers to the environment or the event, called "a typical environment" or "typical events". Art was typical of image usually is the highly generalization is representative of the people or things in real life and the summary, the formation of artistic works in the image by retouching the, in fact typical art image is more vivid than reality, universal higher and the aesthetic value of richer.

  10. A psychometric evaluation of the Danish version of the Theory of Mind Storybook for 8-14 year-old children.

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    Lars eClemmensen

    2016-03-01

    Full Text Available Abstract Background Theory-of-Mind (ToM keeps on developing in late childhood and early adolescence, and the study of ToM development later in childhood had to await the development of sufficiently sensitive tests challenging more mature children. The current study aimed to investigate the psychometric properties of the Danish version of the Theory-of-Mind Storybook Frederik (ToM-Frederik. Methods We assessed whether ToM-Frederik scores differed between a group of 41 typically developing (TD children and a group of 33 children with High functioning Autism Spectrum Disorder (HFASD. A lower mean ToM-Frederik score was expected in the HFASD group. To determine the convergent validity of ToM-Frederik, potential associations with Strange Stories and Animated Triangles (AT were analyzed. Furthermore, potential associations between ToM-Frederik and the Social Responsiveness Scale (SRS and between ToM-Frederik and the Social Emotional Evaluation (SEE Total score were analyzed. Results A significantly higher ToM-Frederik score was observed in the TD group compared to the HFASD group. Furthermore, the convergent validity of ToM-Frederik as a measure of ToM was supported by significant and positive associations with the Strange Stories and the AT scores in the HFASD group, whereas ToM-Frederik was significantly correlated with Strange Stories, but not with AT in the TD group. ToM-Frederik was not significantly associated with SRS in neither the HFASD nor the TD group.Conclusion The findings are supportive of ToM-Frederik as a valid indicator of deficits at the group level in children with HFASD between 7 and 14 years of age. Furthermore, the convergent validity is supported.

  11. Impact of Typical Aging and Parkinson's Disease on the Relationship among Breath Pausing, Syntax, and Punctuation

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    Huber, Jessica E.; Darling, Meghan; Francis, Elaine J.; Zhang, Dabao

    2012-01-01

    Purpose: The present study examines the impact of typical aging and Parkinson's disease (PD) on the relationship among breath pausing, syntax, and punctuation. Method: Thirty young adults, 25 typically aging older adults, and 15 individuals with PD participated. Fifteen participants were age- and sex-matched to the individuals with PD.…

  12. Lipreading Ability and Its Cognitive Correlates in Typically Developing Children and Children with Specific Language Impairment

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    Heikkilä, Jenni; Lonka, Eila; Ahola, Sanna; Meronen, Auli; Tiippana, Kaisa

    2017-01-01

    Purpose: Lipreading and its cognitive correlates were studied in school-age children with typical language development and delayed language development due to specific language impairment (SLI). Method: Forty-two children with typical language development and 20 children with SLI were tested by using a word-level lipreading test and an extensive…

  13. Evaluating the Psychometric Quality of Social Skills Measures: A Systematic Review.

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    Cordier, Reinie; Speyer, Renée; Chen, Yu-Wei; Wilkes-Gillan, Sarah; Brown, Ted; Bourke-Taylor, Helen; Doma, Kenji; Leicht, Anthony

    2015-01-01

    Impairments in social functioning are associated with an array of adverse outcomes. Social skills measures are commonly used by health professionals to assess and plan the treatment of social skills difficulties. There is a need to comprehensively evaluate the quality of psychometric properties reported across these measures to guide assessment and treatment planning. To conduct a systematic review of the literature on the psychometric properties of social skills and behaviours measures for both children and adults. A systematic search was performed using four electronic databases: CINAHL, PsycINFO, Embase and Pubmed; the Health and Psychosocial Instruments database; and grey literature using PsycExtra and Google Scholar. The psychometric properties of the social skills measures were evaluated against the COSMIN taxonomy of measurement properties using pre-set psychometric criteria. Thirty-Six studies and nine manuals were included to assess the psychometric properties of thirteen social skills measures that met the inclusion criteria. Most measures obtained excellent overall methodological quality scores for internal consistency and reliability. However, eight measures did not report measurement error, nine measures did not report cross-cultural validity and eleven measures did not report criterion validity. The overall quality of the psychometric properties of most measures was satisfactory. The SSBS-2, HCSBS and PKBS-2 were the three measures with the most robust evidence of sound psychometric quality in at least seven of the eight psychometric properties that were appraised. A universal working definition of social functioning as an overarching construct is recommended. There is a need for ongoing research in the area of the psychometric properties of social skills and behaviours instruments.

  14. Artificial bias typically neglected in comparisons of uncertain atmospheric data

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    Pitkänen, Mikko R. A.; Mikkonen, Santtu; Lehtinen, Kari E. J.; Arola, Antti

    2016-04-01

    Researchers in atmospheric sciences frequently disregard data uncertainty in their choice of methods for data analysis and visualisation. Such methods include the widely used standard least squares line fitting in combination with some variations of scatter plots when comparing two different data sets of the same physical quantity. When using these methods, random data uncertainty (eg. measurement uncertainty) causes artificial systematic bias in the comparison between the extreme values of the data sets, which is then often interpreted falsely as a consequence of some true physical phenomenon or instrument misbehavior. This artificial bias is recognized as regression to the mean (RTM), that is a known effect in the field of statistics, but mostly disregarded in atmospheric sciences and not acknowledged at all in the vast majority of publications in our field. All kinds of data comparisons are subject to the bias, as long as uncertainty is present in the data. This work introduces the concept of RTM bias and demonstrates the necessity of considering the RTM effect in comparisons of data with uncertainties. We not only visualize the RTM effect with synthetic data but also use simulations based on real atmospheric data to estimate the magnitude of RTM bias in data comparisons common in our field. Typically, RTM bias is greater when the reference data (often on the x-axis) has greater uncertainty. For example, mid-visible aerosol optical thickness determined using a sun photometer may have a fairly low uncertainty of +-0.01 and, thus the RTM effect is small when using it as reference data. On the other hand UV index measurements with a broadband instrument may have an uncertainty of 10 % and higher, and the bias caused by RTM becomes larger. The bias caused by RTM is typically greatest for the extreme values of the data sets, emphasizing the need to account for RTM bias when comparing and interpreting these cases.

  15. Health-related quality of life questionnaire for polycystic ovary syndrome (PCOSQ-50): development and psychometric properties.

    Science.gov (United States)

    Nasiri-Amiri, Fatemeh; Ramezani Tehrani, Fahimeh; Simbar, Masoumeh; Montazeri, Ali; Mohammadpour, Reza Ali

    2016-07-01

    The determinants of the health-related quality of life of women with polycystic ovary syndrome are not fully understood. The aim of this study was to develop a comprehensive instrument to assess the health-related quality of life of Iranian women with PCOS and to assess its psychometric properties. We used a mixed-method, sequential, exploratory design including both qualitative [in-depth interview to define the components of health-related quality of life questionnaire (PCOSQ)] and quantitative approaches (to assess the psychometric properties of PCOSQ). A preliminary questionnaire was developed including 147 items which emerged from the qualitative phase of the study. Considering the optimum cutoff points for content validity ratio (CVR), content validity index (CVI), and impact score, items of the preliminary questionnaire were reduced from 147 to 88 items. Finally, by excluding highly correlated items using the exploratory factor analysis, a 50-item questionnaire was obtained. The Kaiser criteria (eigenvalues >1) and Scree plot tests demonstrated that six factors were optimum with an estimated 47.3 % of variance. Assessment of the psychometric properties of the questionnaire demonstrated a mean CVI = 0.92, CVR = 0.91, Cronbach's alpha for whole questionnaire = 0.88 (0.61-0.88 for subscales), Spearman's correlation coefficients of test-retest = 0.75, and the intra-class correlation coefficient for the PCOS questionnaire subscales ranging from 0.57 to 0.88. Eventually the final questionnaire included 50 items in six domains, 'psychosocial and emotional,' 'fertility,' 'sexual function,' 'obesity and menstrual disorders,' 'hirsutism,' and 'coping' and rated on a 5-point Likert scale. The PCOSQ-50 is a valid and reliable instrument for the assessment of quality of life of women with PCOS, capable of assessing some obscure aspects overlooked by previous HRQL questionnaires.

  16. Investigating the psychometric properties of the Jefferson Scale of Physician Empathy in a sample of Malaysian medical students

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    Spasenoska M

    2016-06-01

    Full Text Available Marija Spasenoska,1 Shane Costello,1 Brett Williams2 1Faculty of Education, 2Department of Community Emergency Health and Paramedic Practice, Monash University, Melbourne, VIC, Australia Objective: The purpose of this present study was to investigate the psychometric properties of the Jefferson Scale of Physician Empathy – student version (JSPE-S. Subjects and methods: This study recruited 193 Malaysian medical students enrolled in year one and year two studies. A principal-component analysis with Varimax rotation was conducted. Procrustes rotation was used to confirm the item to model fit, which allows for a comparison of actual structure against an ideal hypothesized structure. Items were systematically removed based on low communalities of < 0.3 and poor loading of items onto components. Results: A two-component solution was found, comprised of “perspective taking” and “compassionate care”. Following item removal, eleven items remained. A Procrustes analysis revealed that this eleven-item measure demonstrated an excellent model fit. A possible third component was identified, though is not recommended for use, due to construct underrepresentation. Conclusion: This study found the Jefferson Scale of Physician Empathy fitted best to a two-component model using eleven items. Item, component, and overall congruence were very high, and scale reliabilities were adequate. The results of this study suggest that the eleven-item, two-component solution demonstrates excellent psychometric properties and structural validity in a Malaysian medical student population. Future research could consider using the short eleven-item measure in both student and health care profession samples to investigate the role of empathy in health care. Keywords: empathy, medical students, psychometrics

  17. A study on prioritizing typical women’s entrepreneur characteristics

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    Ebrahim Ramezani

    2014-07-01

    Full Text Available Entrepreneurship is one of the main pivot of progress and growth of every country. The spread of entrepreneurship particularly the role of women in this category has speeded up today more than any other times. Many of researchers believe that attention to women entrepreneurship plays remarkable role in soundness and safety of nation’s economy. Maybe in Iran less attention has been paid to this matter in proportion to other countries and due to various reasons, there are not many entrepreneur woman. However, employing typical entrepreneur women in various fields of productivity, industrial, commercial, social and cultural and even higher than these, in country’s political issue proves that women’s role is magnificent and in many cases they enjoy higher abilities in portion to men. In this paper, using additive ratio assessment (ARAS as a prioritizing method, eleven entrepreneur women were chosen for prioritizing criteria for measuring a typical women’s entrepreneurship characteristics. The results show that the balance between work and family among criteria are propounded as the highest weight and fulfilling different jobs simultaneously as the lowest weight.

  18. Modelling object typicality in description logics - [Workshop on Description Logics

    CSIR Research Space (South Africa)

    Britz, K

    2009-07-01

    Full Text Available The authors presents a semantic model of typicality of concept members in description logics that accords well with a binary, globalist cognitive model of class membership and typicality. The authors define a general preferential semantic framework...

  19. Estimating Typical Multiple Sclerosis Disability Progression Speed from Clinical Observations

    Science.gov (United States)

    Brown, Murray G.; Asbridge, Mark; Hicks, Vern; Kirby, Sarah; Murray, Thomas J.; Andreou, Pantelis; Lin, Dong

    2014-01-01

    Introduction Multiple sclerosis (MS) is a chronic disease of the central nervous system. Estimates of MS natural history (NH) disability progression speed from clinical observations vary worldwide. This may reflect, in part, variance in censoring-bias) (missing observations) and assumptions about when irreversible disability progression events occurred. We test whether estimates of progression speed which assume midpoint survival time at irreversible disability endpoints are significantly faster than estimates which assume maximum survival time, and are more stable across study groups and time periods. Methods Our Nova Scotia NH study population includes 2,240 definite relapsing-onset multiple sclerosis (R-MS) natural history patients with 18,078 Expanded Disability Status Scale (EDSS) clinical observations in study period 1979–2010. Progression speed is measured by rate-of-change in range EDSS 0–6 and by survival time at irreversible endpoints EDSS 1–9. Midpoint censoring-bias-reduction methods are applied to clinical observations. Findings Typical EDSS increase per year in range EDSS 0–6, assuming midpoint survival time, is estimated to be 0.168 for all R-MS, 0.204 for eventually-DMD-treated patients and 0.155 for never-DMD-treated patients. Estimates assuming midpoint rather than maximum survival time are significantly faster: 16% faster for all R-MS natural history patients, 6% faster for eventually-DMD-treated patients, and 21% faster for never-DMD-treated patients. The variability of estimates across study groups and time periods decreased when midpoint survival time was assumed. Conclusions Estimates of typical disease progression speed from 1979–2010 Nova Scotia clinical observations are sensitive to censoring-bias and to analysts’ survival time assumptions. Censoring-bias-adjusted estimates of typical natural history disability progression speed in relapsing-onset multiple sclerosis patients are significantly faster, and less variable within

  20. Estimating typical multiple sclerosis disability progression speed from clinical observations.

    Directory of Open Access Journals (Sweden)

    Murray G Brown

    Full Text Available INTRODUCTION: Multiple sclerosis (MS is a chronic disease of the central nervous system. Estimates of MS natural history (NH disability progression speed from clinical observations vary worldwide. This may reflect, in part, variance in censoring-bias (missing observations and assumptions about when irreversible disability progression events occurred. We test whether estimates of progression speed which assume midpoint survival time at irreversible disability endpoints are significantly faster than estimates which assume maximum survival time, and are more stable across study groups and time periods. METHODS: Our Nova Scotia NH study population includes 2,240 definite relapsing-onset multiple sclerosis (R-MS natural history patients with 18,078 Expanded Disability Status Scale (EDSS clinical observations in study period 1979-2010. Progression speed is measured by rate-of-change in range EDSS 0-6 and by survival time at irreversible endpoints EDSS 1-9. Midpoint censoring-bias-reduction methods are applied to clinical observations. FINDINGS: Typical EDSS increase per year in range EDSS 0-6, assuming midpoint survival time, is estimated to be 0.168 for all R-MS, 0.204 for eventually-DMD-treated patients and 0.155 for never-DMD-treated patients. Estimates assuming midpoint rather than maximum survival time are significantly faster: 16% faster for all R-MS natural history patients, 6% faster for eventually-DMD-treated patients, and 21% faster for never-DMD-treated patients. The variability of estimates across study groups and time periods decreased when midpoint survival time was assumed. CONCLUSIONS: Estimates of typical disease progression speed from 1979-2010 Nova Scotia clinical observations are sensitive to censoring-bias and to analysts' survival time assumptions. Censoring-bias-adjusted estimates of typical natural history disability progression speed in relapsing-onset multiple sclerosis patients are significantly faster, and less variable

  1. A factor-decomposition method on carbon emission from the energy consumption in China and some other typical countries%中国和世界典型国家能源消费碳排放因素分解研究

    Institute of Scientific and Technical Information of China (English)

    汪艺梅; 张裕芬; 冯银厂; 高丽洁; 宋晓辉

    2011-01-01

    This paper aims to provide a decomposition model of the carbon emissions in the whole world, including China and some other typical countries by adopting logarithmic Mean Weight Divisia ( LM-DI) method based on the extended Kaya identity. The model was adopted to analyze the effect of the economic growth, energy intensity , types of energy structure and population sizes on the carbon emissions from the energy consumption in these spheres quantitatively, in comparison with some typical countries, such as the U.S. A, Germany and Japan. Besides, households were added to the model to analyze the influence from household growth on the carbon emission in China. The results of our analysis indicate that the economic growth and population size demonstrate a positive impact on the CO2, emission though the population effect in India was slightly stronger than the economic effect. That is to say, the CO2 emission brought by the population growth proves more important than that by the economic growth in India; whereas in China and some other typical countries, economic growth effect proves stronger than the population factor. The energy intensity shows a negative effect on the CO2 emissions from energy consumption in all the countries quoted, being the main factor restraining the growth of CO2 emissions from energy consumption. Energy intensity impact in Germany and the U .S. A, turns out strong e-nough to balance that of the economic growth with their energy structure slightly influencing the size of their CO2 emissions. It also shows a weak positive effect on the CO2 emissions from energy consumption in the U.S.A. revealing a weak negative effect in the other typical countries and the world, slightly restraining the growth of CO2 emissions. However, in China, the revised model proves that carbon e-mission in China also comes from the household energy consumption, which seems greater than that of the population.%基于扩展的Kaya恒等式,应用迪氏对数指数分解

  2. Disease-specific questionnaire for quality of life in patients with peripheral arterial occlusive disease in the stage of critical ischemia (FLeQKI) - methodical development of a specific measuring instrument and psychometric evaluation of its validity and reliability. Pt. 1; Fragebogen zur gesundheitsbezogenen Lebensqualitaet von Patienten mit peripherer arterieller Verschlusskrankheit (pAVK) im Stadium kritischer Ischaemie (FLeQKI) - methodische Entwicklung eines krankheitsspezifischen Messinstruments und psychometrische Bestimmung seiner Validitaet und Reliabilitaet. T. 1

    Energy Technology Data Exchange (ETDEWEB)

    Wohlgemuth, W.A.; Bohndorf, K.; Kirchhof, K. [Klinikum Augsburg (Germany). Klinik fuer Diagnostische Radiologie und Neuroradiologie; Olbricht, W. [Bayreuth Univ. (Germany). Lehrstuhl fuer Mathematik VII; Klarmann, S. [Klinikum Augsburg (Germany). Klinik fuer Neurologie und Klinische Neurophysiologie; Engelhardt, M. [Bundeswehrkrankenhaus Ulm (Germany). Klinik fuer Gefaesschirurgie; Freitag, M.H. [Bayreuth Univ. (Germany). Inst. fuer Medizinmanagement und Gesundheitswissenschaften; Woelfle, K. [Klinikum Augsburg (Germany). Klinik fuer Gefaesschirurgie

    2007-12-15

    Purpose: To develop a disease-specific measuring instrument for quality of life in German-speaking patients with peripheral arterial occlusive disease in the stage of critical ischemia and to test it in a prospective study for validity and reliability. Materials and methods: We developed a questionnaire compiling items representing subjective disease relevant health states. With 35 of these items, we designed the scales comorbidity (KO), physical pain (SZ), physical functioning (KF), physical state (KS), social functioning (SB), mental health (PB), and therapy-induced limitations (TE). Each item was to be valued as never, seldom, often or always. The scales were standardized with a control group of 40 individuals without peripheral arterial occlusive disease who were interviewed twice in an interval of 6 months using both the FLeQKI and the Medical Outcomes Study Group Short Form 36 (SF-36). Convergent and discriminative validity was determined in 65 consecutive in-patients with peripheral occlusive arterial disease in the stage of critical ischemia who were interviewed with FLeQKI and SF-36 prior to percutaneous transluminal angioplasty (PTA) or bypass operation and 1 month and 6 months after. The internal consistency and test-retest reliability of the FLeQKI were determined in the control group. For statistical analysis, Cronbach's {alpha} Test and Pearsons Product Moment Correlation were used. Results: The control group consisted of 21 men and 19 women with an age of 73.4 {+-} 7.8, and the treatment group was comprised of 35 men and 30 women with an age of 75.1 {+-} 7.0. In the treatment group, convergent validity reached high values in the scales SB, KF, PB, and SZ (r = 0.41 - 0.70). With their discriminative validity (r = -0.04 - 0.30), TE and KS were independent, specific dimensions of life quality. The control group showed good values for internal consistency (Cronbach's {alpha} = 0.54 - 0.93) and for test-retest reliability (r = 0.44 - 0

  3. Psychometric analysis and critical appraisal of the original, revised, and modified versions of the Japanese Orthopaedic Association score in the assessment of patients with cervical spondylotic myelopathy.

    Science.gov (United States)

    Furlan, Julio C; Catharine Craven, B

    2016-06-01

    OBJECTIVE Cervical spondylotic myelopathy (CSM) is the most common cause of nontraumatic spinal cord impairment and disability in the world. Given that the Japanese Orthopaedic Association (JOA) score is the most frequently used outcome measure in clinical research and practice for treating patients with CSM, this review was undertaken to comprehensively and critically evaluate the psychometric properties of the JOA score. METHODS The authors identified studies (published in the period of January 1975 to November 2015) on the psychometric properties of the original, revised, and modified versions of the JOA score in Medline, PsycINFO, Excerpta Medica dataBASE (EMBASE), American College of Physicians Journal Club, and Cochrane Database of Systematic Reviews. Additional publications were captured in a secondary search of the bibliographies in both original research articles and literature reviews identified in the original search. The JOA scores were evaluated for item generation and reduction, internal consistency, reliability, validity, and responsiveness. This review included all those versions of the JOA score whose psychometric properties had been reported in at least 2 published studies. RESULTS The primary search strategy identified 59 studies, of which 9 fulfilled the inclusion and exclusion criteria. An additional 18 publications were captured in the secondary search and included in the analysis. The key findings from the 27 studies analyzed indicated the following: 1) the original JOA score (1975) was the source for the revised JOA score (1994) and 3 modified versions (1991, 1993, and 1999 JOA scores) reported or used in at least 2 published studies; 2) the revised and modified versions of the JOA score are markedly different from each other; 3) only the revised JOA score (1994) was validated with the original JOA score; and 4) the 1975 JOA score is the most appropriate instrument for assessing patients in Asian populations (especially from Japan) because

  4. [Psychometric properties of the Adolescent Sexism Detection (ASD) scale].

    Science.gov (United States)

    Recio, Patricia; Cuadrado, Isabel; Ramos, Esther

    2007-08-01

    In this article, it is assumed that gender violence, or violence against women, has mainly a sociocultural basis. A scale (Adolescent Sexism Detection; ASD) to detect sexism in adolescents was developed and its psychometric properties were analysed. 245 adolescents between 14 and 17 years of age participated in the study. As a result of the factor analyses carried out, the hostile and benevolent dimensions of sexism were clearly differentiated. Convergent validity of the scale was confirmed by its high correlations with the Ambivalent Sexism Inventory (ASI). Participants scored higher in benevolent than in hostile sexism, an effect even stronger in female participants. These findings suggest that the ASD scale is a valid instrument to measure sexism among adolescents. The main findings of this study are compared to those obtained in other studies using the ASI. The potential of this scale to appropriately detect sexism among adolescents is discussed.

  5. Psychology students evaluation of projective and psychometric techniques. Some comments

    Directory of Open Access Journals (Sweden)

    Carmen Maganto Mateo

    2016-02-01

    Full Text Available The purpose of this study is to know Psychology students of the Basque Country’ evaluation of assessment instruments regarding these criteria: learning difficulties, utility for their professional practice. A sudents sample attending the fifth course, with similar acedemic curriculum was studied. Results show that students are interested in psychometric as well as in projective techniques; they consider that both techniques will be highly useful in their professional practice. They are also awared thay they need to adquire a deeper knowledge on them. In order to achieve that aim, they requiere more class hours devoted to the study of both types of techniques, specially the projective ones due to the high difficulty they involve. 

  6. Assessing the Psychometric Properties of Alternative Items for Certification.

    Science.gov (United States)

    Krogh, Mary Anne; Muckle, Timothy

    Alternative items were added as scored items to the National Certification Examination for Nurse Anesthetists (NCE) in 2010. A common concern related to the new items has been their measurement attributes. This study was undertaken to evaluate the psychometric impact of adding these items to the examination. Candidates had a significantly higher ability estimate in alternative items than in multiple choice questions and 6.7 percent of test candidates performed significantly differently in alternative item formats. The ability estimates of multiple choice questions correlated at r = .58. The alternative items took significantly longer time to answer than standard multiple choice questions and discriminated to a higher degree than MCQs. The alternative items exhibited unidimensionality to the same degree as MCQs and the BIC confirmed the Rasch model as acceptable for scoring. The new item types were found to have acceptable attributes for inclusion in the certification program.

  7. Psychometric properties of the rating scale sports organizations EPOD

    Directory of Open Access Journals (Sweden)

    Alberto Nuviala Nuviala

    2010-07-01

    Full Text Available The understanding of user satisfaction and consumers of services is a necessity for those responsible for them. There’s a variety of instruments that assess the perceived quality but are criticized for several reasons: concepts, procedures, lack of specificity... EPOD is a scale with 29 items integrated in four dimensions, direct practical application which had been previously validated. However, nobody had checked the psychometric properties of the instrument. Therefore, the aim of this study is to determine them. The sample was 463 users of sports services who were given the instrument. The results show good internal and external validity, while it has a high reliability. Therefore, EPOD becomes a tool to assess the perceived quality of service provided by the sports organizations in a valid, reliable, simple and brief way, considering the different dimensions that make up the provision of sports services.

  8. Psychometric properties of the index of relocation adjustment.

    Science.gov (United States)

    Bekhet, Abir K; Zauszniewski, Jaclene A

    2014-06-01

    More and more American older adults are relocating to retirement communities, and they experience challenges in adjusting to new surroundings that may increase their depression and mortality. An instrument not previously tested in the United States, the Index of Relocation Adjustment (IRA), may help in early identification of poor relocation adjustment. This study examined the psychometric properties of the IRA using secondary data from a convenience sample of 104 older adults who relocated to 6 retirement communities in Northeast Ohio. Cronbach's alpha was .86. The IRA was correlated with measures of positive cognitions (r = .48, p controllability (r = -.62, p IRA is potentially useful as a screening measure for early detection of poor adjustment among relocated older adults.

  9. Psychometric Studies of the Learning Strategies Scale for University Students

    Directory of Open Access Journals (Sweden)

    Evely Boruchovitch

    2015-04-01

    Full Text Available The aim of this article is to examine the psychometric properties of a learning strategies scale for university students. The scale was composed of 49 Likert scale items related to cognitive and metacognitive strategies. It was applied in a sample of 1,490 university students. The factor analysis revealed that 35 items had acceptable loadings and identified a three factor structure: Factor 1 - Cognitive and Metacognitive Self-regulation, Factor 2 - Internal Resource and Context regulation, and Factor 3 - Social regulation. Its internal consistency was assessed by Cronbach’s alpha and was .87 for the total scale, .86 for Factor 1, .71 for Factor 2 and .65 for Factor 3. The total variance explained was 26.6%. Further studies are suggested based on confirmatory factor analyses, so that the scale can be better utilized in psychoeducational evaluation.

  10. Typical duration of good seeing sequences at Concordia

    CERN Document Server

    Fossat, Eric; Agabi, Karim; Bondoux, Erick; Challita, Zalpha; Jeanneaux, Francois; Mekarnia, Djamel

    2010-01-01

    Context: The winter seeing at Concordia is essentially bimodal, excellent or quite poor, with relative proportions that depend on altitude above the snow surface. This paper studies the temporal behavior of the good seeing sequences. Aims: An efficient exploitation of extremely good seeing with an adaptive optics system needs long integrations. It is then important to explore the temporal distribution of the fraction of time providing excellent seeing. Methods: Temporal windows of good seeing are created by a simple binary process. Good or bad. Their autocorrelations are corrected for those of the existing data sets, since these are not continuous, being often interrupted by technical problems in addition to the adverse weather gaps. At the end these corrected autocorrelations provide the typical duration of good seeing sequences. This study has to be a little detailed as its results depend on the season, summer or winter. Results: Using a threshold of 0.5 arcsec to define the "good seeing", three characteris...

  11. GENERATION OF A TYPICAL METEOROLOGICAL YEAR FOR PORT HARCOURT ZONE

    Directory of Open Access Journals (Sweden)

    OGOLOMA O.B.

    2011-04-01

    Full Text Available This paper presents data for the typical meteorological year (TMY for the Port Harcourt climatic zone based on the hourly meteorological data recorded during the period 1983–2002, using the Finkelstein-Schafer statistical method. The data are the global solar radiation, wind velocity, dry bulb temperature, relative humidity, and others. The HVAC outside design conditions for the Port Harcourt climatic zone (latitude 4.44oN, longitude 7.1oE, elevation 20 m were found to be 26.7oC, 78.6% and 3.5 m/s for the dry bulb temperature, relative humidity and wind speed, respectively, and 13.5 MJ/m2/day for the global solar radiation. The TMY data for the zone are shown to be sufficiently reliable for engineering practice.

  12. Multidimensional daily diary of fatigue-fibromyalgia-17 items (MDF-fibro-17): part 2 psychometric evaluation in fibromyalgia patients.

    Science.gov (United States)

    Li, Y; Morris, S; Cole, J; Dube', S; Smith, J A M; Burbridge, C; Symonds, T; Hudgens, S; Wang, W

    2017-05-18

    The Multidimensional Daily Diary of Fatigue-Fibromyalgia-17 instrument (MDF-Fibro-17) has been developed for use in fibromyalgia (FM) clinical studies and includes 5 domains: Global Fatigue Experience, Cognitive Fatigue, Physical Fatigue, Motivation, and Impact on Function. Psychometric properties of the MDF-Fibro-17 needed to demonstrate the appropriateness of using this instrument in clinical studies are presented. Psychometric analyses were conducted to evaluate the factor structure, reliability, validity, and responsiveness of the MDF-Fibro-17 using data from a Phase 2 clinical study of FM patients (N = 381). Confirmatory factor analyses (CFA) were performed to ensure understanding of the multidimensional domain structure, and a secondary factor analysis of the domains examined the appropriateness of calculating a total score in addition to domain scores. Longitudinal psychometric analyses (test-retest reliability and responder analysis) were also conducted on the data from Baseline to Week 6. The CFA supported the 17-item, 5 domain structure of this instrument as the best fit of the data: comparative fit index (CFI) and non-normed fit index (NNFI) were 0.997 and 0.992 respectively, standardized root mean square residual (SRMR) was 0.010 and the root mean square error of approximation (RMSEA) was 0.06. In addition, total score (CFI and NNFI both 0.95) met required standards. For the total and 5 domain scores, reliability and validity data were acceptable: test-retest and internal consistency were above 0.9; correlations were as expected with the Global Fatigue Index (GFI) (0.62-0.75), Fibromyalgia Impact Questionnaire (FIQ) Total (0.59-0.71), and 36-Item Short Form Health Survey (SF-36) vitality (VT) (0.43-0.53); and discrimination was shown using quintile scores for the GFI, FIQ Total, and Pain Numeric Rating Scale (NRS) quartiles. In addition, sensitivity to change was demonstrated with an overall mean responder score of -2.59 using anchor-based methods

  13. Psychometric evaluation of the HIV symptom distress scale

    Science.gov (United States)

    Marc, Linda G.; Wang, Ming-Mei; Testa, Marcia A.

    2012-01-01

    The objective of this paper is to psychometrically validate the HIV Symptom Distress Scale (SDS), an instrument that can be used to measure overall HIV symptom distress or clinically relevant groups of HIV symptoms. A secondary data analysis was conducted using the Collaborations in HIV Outcomes Research U.S. Cohort (CHORUS). Inclusion criteria required study participants (N=5,521) to have a valid baseline measure of the AIDS Clinical Trial Group Symptom Distress Module, with an SF-12 or SF-36 completed on the same day. Psychometric testing assessed unidimensionality, internal consistency and factor structure using exploratory and confirmatory factor analysis, and structural equation modeling (SEM). Construct validity examined whether the new measure discriminates across clinical significance (CD4 and HIV viral load). Findings show that the SDS has high reliability (α=0.92), and SEM supports a correlated second-order factor model (physical and mental distress) with acceptable fit (GFI=0.88, AGFI=0.85, NFI=0.99, NNFI=0.99; RMSEA=0.06, [90% CI 0.06 – 0.06]; Satorra Bentler Scaled, C2 =3274.20; p=0.0). Construct validity shows significant differences across categories for HIV-1 viral load (p< 0.001) and CD4 (p< 0.001). Differences in mean SDS scores exist across gender (p< 0.001), race/ethnicity (p< 0.05) and educational attainment (p < 0.001). Hence, the HIV Symptom Distress Scale is a reliable and valid instrument, which measures overall HIV symptoms or clinically relevant groups of symptoms. PMID:22409246

  14. Psychometric properties of the Adolescent Sleep Hygiene Scale.

    Science.gov (United States)

    Storfer-Isser, Amy; Lebourgeois, Monique K; Harsh, John; Tompsett, Carolyn J; Redline, Susan

    2013-12-01

    This study evaluated the psychometric properties of the Adolescent Sleep Hygiene Scale (ASHS), a self-report measure assessing sleep practices theoretically important for optimal sleep. Data were collected on a community sample of 514 adolescents (16-19; 17.7 ± 0.4 years; 50% female) participating in the late adolescent examination of a longitudinal study on sleep and health. Sleep hygiene and daytime sleepiness were obtained from adolescent reports, behavior from caretaker reports, and sleep-wake estimation on weekdays from wrist actigraphy. Confirmatory factor analysis indicated the empirical and conceptually based factor structure were similar for six of the eight proposed sleep hygiene domains. Internal consistency of the revised scale (ASHSr) was α = 0.84; subscale alphas were: physiological: α = 0.60; behavioural arousal: α = 0.62; cognitive/emotional: α = 0.81; sleep environment: α = 0.61; sleep stability: α = 0.68; daytime sleep: α = 0.78. Sleep hygiene scores were associated positively with sleep duration (r = 0.16) and sleep efficiency (r = 0.12) and negatively with daytime sleepiness (r = -0.26). Results of extreme-groups analyses comparing ASHSr scores in the lowest and highest quintile provided further evidence for concurrent validity. Correlations between sleep hygiene scores and caretaker reports of school competence, internalizing and externalizing behaviours provided support for convergent validity. These findings indicate that the ASHSr has satisfactory psychometric properties for a research instrument and is a useful research tool for assessing sleep hygiene in adolescents. © 2013 European Sleep Research Society.

  15. Evaluating the psychometric properties of the Jacelon Attributed Dignity Scale.

    Science.gov (United States)

    Jacelon, Cynthia S; Choi, Jeungok

    2014-09-01

    To develop and psychometrically test the Jacelon Attributed Dignity Scale (JADS). The JADS was designed to measure self-perceived attributed dignity in community-dwelling older adults. Attributed dignity was conceived of as a state characteristic of the self. The JADS is a short, positively scored, norm-referenced, evaluation index designed to measure self-perceived attributed dignity during the last week. Instrument development and testing including psychometric properties, internal consistency, factor structure, temporal stability and construct validity. Using a quota sample, 289 older adults (65-99 years old) were recruited from senior centres in western New England to complete the JADS, demographic information, the Self-Esteem Scale and the Social Desirability Scale during 2010-2011. Descriptive statistics, exploratory factor analysis, construct validity and temporal stability were evaluated. The resulting positively scored 18-item scale has four factors with high internal consistency for each factor and the entire scale. Construct validity was established by examining correlations with instruments that measured self-esteem and social desirability. Attributed dignity is a unique concept that is stable over time. The JADS is an 18-item Likert-scaled instrument designed to measure attributed dignity. Attributed dignity is a concept with four factors and is defined as a cognitive component of the self-connoting self-value, perceived value from others, self in relation to others and behaving with respect. The importance of attributed dignity for older adults in relation to health, function, independence, quality of life and successful ageing can now be evaluated. © 2014 John Wiley & Sons Ltd.

  16. Psychometric evaluation of the Differentiation of Self Inventory for adolescents.

    Science.gov (United States)

    Knauth, Donna G; Skowron, Elizabeth A

    2004-01-01

    Evidence of psychometric support is needed for use of the Differentiation of Self Inventory with adolescents as a clinical assessment instrument to evaluate psychotherapeutic progress and outcomes, and for its use as a research instrument to evaluate the effectiveness of interventions on the basis of Bowen family systems theory. To examine the reliability and validity of the 46-item, self-report Differentiation of Self Inventory (DSI) for use with adolescents. An ex post facto research design was used to determine the psychometric properties of the DSI for adolescents, and to test theoretically grounded hypotheses drawn from Bowen theory that linked differentiation of self with chronic anxiety and symptom development. The DSI, the State-Trait Anxiety Inventory, and the Symptom Pattern Scale were administered to an ethnically diverse sample of 363 adolescents 14 to 19 years of age. The DSI full scale demonstrated good internal consistency reliability, with a Cronbach's alpha coefficient of.84. Factor analysis yielded a six-factor structure, representing the multidimensionality of the DSI items among adolescents. As hypothesized, differentiation of self mediated the relation between chronic anxiety and symptom development (p <.001), indicating that greater differentiation of self predicted fewer symptoms over and above chronic anxiety, and lending support to the construct validity of the DSI in adolescent populations. The results of this study support the use of the DSI with adolescents. Future longitudinal studies are needed for definitive causal conclusions regarding the role that differentiation of self plays as a mediator between the relation of chronic anxiety and symptom development.

  17. Intrinsic Motivation Predicting Performance Satisfaction in Athletes: Further Psychometric Evaluations of the Sport Motivation Scale-6

    National Research Council Canada - National Science Library

    Jan Blecharz; Karolina Horodyska; Karolina Zarychta; Aleksandra Adamiec; Aleksandra Luszczynska

    2015-01-01

    The study investigated psychometric properties of the Sport Motivation Scale-6 (SMS-6), assessing intrinsic regulation, four extrinsic regulation constructs, and amotivation among athletes competing at a regional and national level...

  18. The assessment of disability with the Groningen Activity Restriction Scale. Conceptual framework and psychometric properties

    NARCIS (Netherlands)

    Kempen, G.I J M; Miedema, I; Ormel, J.; Molenaar, W.

    1996-01-01

    The conceptual framework, psychometric properties, descriptive statistics, and the rules for administration and scoring of the Groningen Activity Restriction Scale (CARS) for assessing disability in the area of ADL (Activities of Daily Living including mobility) as well as IADL (Instrumental

  19. A call for policy guidance on psychometric testing in doping control in sport

    DEFF Research Database (Denmark)

    Petróczi, Andrea; Backhouse, Susan H.; Barkoukis, Vassilis

    2015-01-01

    confounds self-reported psychometric test results. Further, the cognitive complexity surrounding test performance means that the response-time based measures and the lie detector tests for revealing concealed life-events (e.g., doping use) are prone to produce false or non-interpretable outcomes in field...... settings. Differences in social-cognitive characteristics of doping behaviour that are tested at group level (doping users vs. non-users) cannot be extrapolated to individuals; nor these psychometric measures used for individual diagnostics. In this paper, we present a position statement calling for policy...... guidance on appropriate use of psychometric assessments in the pursuit of clean sport. We argue that both self-reported and response-time based psychometric tests for doping have been designed, tested and validated to explore how athletes feel and think about doping in order to develop a better...

  20. Psychometric Properties of the Barriers to Treatment Participation Scale-Expectancies

    NARCIS (Netherlands)

    Nanninga, Marieke; Jansen, Danielle E. M. C.; Kazdin, Alan E.; Knorth, Erik J.; Reijneveld, Sijmen A.

    Expectations concerning barriers to children's psychosocial care seem to be major drivers when seeking help, but validated questionnaires measuring expectations are not available. Therefore, this study examined the psychometric properties of the parent and adolescent versions of the Barriers to