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Sample records for frequency questionnaire dfq

  1. van der Waals Density Functional Theory vdW-DFq for Semihard Materials

    Science.gov (United States)

    Peng, Qing; de, Suvranu

    There are a large number of materials with mild stiffness, which are not as soft as tissues and not as strong as metals. These semihard materials includes energetic materials, molecular crystals, layered materials, and van der Waals crystals. The integrity and mechanical stability are mainly determined by the interactions between instantaneously induced dipoles, the so called London dispersion force or van der Waals force. It is challenging to accurately model the structural and mechanical properties of these semihard materials in the frame of density functional theory where the non-local correlation functionals are not well known. Here we propose a van der Waals density functional named vdW-DFq to accurately model the density and geometry of semihard materials. Using β-cyclotetramethylene tetranitramine as a prototype, we adjust the enhancement factor of the exchange energy functional with generalized gradient approximations. We find this method to be simple and robust over a wide tuning range when calibrating the functional on-demand with experimental data. With a calibrated value q = 1 . 05 , the proposed vdW-DFq method shows good performance in predicting the geometries of 11 common energetic material molecular crystals and 3 typical layered van der Waals crystals. The authors would like to acknowledge the generous financial support from the Defense Threat Reduction Agency (DTRA) Grant # HDTRA1-13-1-0025.

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

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    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…

  3. Relationships between the Food Expectancy Questionnaire (FEQ) and the Food Frequency Questionnaire (FFQ).

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    Reid, Marie; Bunting, Jane; Hammersley, Richard

    2005-10-01

    The outcome expectancies of 250 respondents were examined using the Food Expectancy Questionnaire (FEQ), comparing expectancies about four different foods: fruit, vegetables, chocolate and sweets and plain biscuits. These expectancies were related to diet as assessed by a Food Frequency Questionnaire. As with alcohol expectancies [Jones, B. T., Corbin, W. & Fromme, K. (2001). A review of expectancy theory and alcohol consumption. Addiction, 96, 57-72], on which this research was modelled, positive and negative outcomes were the main factors for all foods, accounting jointly for between 33 and 40% of expectancy variance in factor analysis and predicting as much as 16% of the variance in relevant food intake measures by linear regression. Expected positive and negative outcomes of eating were predominantly immediate psychological after-effects, rather than including orosensory experiences, or longer-term effects on health or well-being. Other expectancies varied from food to food. FEQ expectancies for different foods have similar factor structure and were related to self-reported diet, the FEQ therefore shows promise as a means of modelling cognitions about eating.

  4. Validation and reproducibility of an Australian caffeine food frequency questionnaire.

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    Watson, E J; Kohler, M; Banks, S; Coates, A M

    2017-08-01

    The aim of this study was to measure validity and reproducibility of a caffeine food frequency questionnaire (C-FFQ) developed for the Australian population. The C-FFQ was designed to assess average daily caffeine consumption using four categories of food and beverages including; energy drinks; soft drinks/soda; coffee and tea and chocolate (food and drink). Participants completed a seven-day food diary immediately followed by the C-FFQ on two consecutive days. The questionnaire was first piloted in 20 adults, and then, a validity/reproducibility study was conducted (n = 90 adults). The C-FFQ showed moderate correlations (r = .60), fair agreement (mean difference 63 mg) and reasonable quintile rankings indicating fair to moderate agreement with the seven-day food diary. To test reproducibility, the C-FFQ was compared to itself and showed strong correlations (r = .90), good quintile rankings and strong kappa values (κ = 0.65), indicating strong reproducibility. The C-FFQ shows adequate validity and reproducibility and will aid researchers in Australia to quantify caffeine consumption.

  5. Development of a food frequency questionnaire for Sri Lankan adults

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    Jayawardena Ranil

    2012-08-01

    Full Text Available Abstract Background Food Frequency Questionnaires (FFQs are commonly used in epidemiologic studies to assess long-term nutritional exposure. Because of wide variations in dietary habits in different countries, a FFQ must be developed to suit the specific population. Sri Lanka is undergoing nutritional transition and diet-related chronic diseases are emerging as an important health problem. Currently, no FFQ has been developed for Sri Lankan adults. In this study, we developed a FFQ to assess the regular dietary intake of Sri Lankan adults. Methods A nationally representative sample of 600 adults was selected by a multi-stage random cluster sampling technique and dietary intake was assessed by random 24-h dietary recall. Nutrient analysis of the FFQ required the selection of foods, development of recipes and application of these to cooked foods to develop a nutrient database. We constructed a comprehensive food list with the units of measurement. A stepwise regression method was used to identify foods contributing to a cumulative 90% of variance to total energy and macronutrients. In addition, a series of photographs were included. Results We obtained dietary data from 482 participants and 312 different food items were recorded. Nutritionists grouped similar food items which resulted in a total of 178 items. After performing step-wise multiple regression, 93 foods explained 90% of the variance for total energy intake, carbohydrates, protein, total fat and dietary fibre. Finally, 90 food items and 12 photographs were selected. Conclusion We developed a FFQ and the related nutrient composition database for Sri Lankan adults. Culturally specific dietary tools are central to capturing the role of diet in risk for chronic disease in Sri Lanka. The next step will involve the verification of FFQ reproducibility and validity.

  6. Design Characteristics of Food Frequency Questionnaires in Relation to Their Validity

    National Research Council Canada - National Science Library

    Molag, M.L; Vries, de, J.H.M; Ocke, M.C; Dagnelie, P.C; Brandt, van den, P.A; Jansen, S.C; Staveren, van, W.A; Veer, van 't, P

    2007-01-01

    The authors investigated the role of food frequency questionnaire (FFQ) design, including length, use of portion-size questions, and FFQ origin, in ranking subjects according to their nutrient intake...

  7. Evaluation of a Validated Food Frequency Questionnaire for Self-Defined Vegans in the United States

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    Patricia Dyett

    2014-07-01

    Full Text Available This study aimed to develop and validate a de novo food frequency questionnaire for self-defined vegans in the United States. Diet histories from pilot samples of vegans and a modified ‘Block Method’ using seven selected nutrients of concern in vegan diet patterns, were employed to generate the questionnaire food list. Food frequency responses of 100 vegans from 19 different U.S. states were obtained via completed mailed questionnaires and compared to multiple telephone-conducted diet recall interviews. Computerized diet analyses were performed. Correlation coefficients, t-tests, rank, cross-tabulations, and probability tests were used to validate and compare intake estimates and dietary reference intake (DRI assessment trends between the two methods. A 369-item vegan-specific questionnaire was developed with 252 listed food frequency items. Calorie-adjusted correlation coefficients ranged from r = 0.374 to 0.600 (p < 0.001 for all analyzed nutrients except calcium. Estimates, ranks, trends and higher-level participant percentile placements for Vitamin B12 were similar with both methods. Questionnaire intakes were higher than recalls for most other nutrients. Both methods demonstrated similar trends in DRI adequacy assessment (e.g., significantly inadequate vitamin D intake among vegans. This vegan-specific questionnaire can be a useful assessment tool for health screening initiatives in U.S. vegan communities.

  8. Evaluation of a validated food frequency questionnaire for self-defined vegans in the United States.

    Science.gov (United States)

    Dyett, Patricia; Rajaram, Sujatha; Haddad, Ella H; Sabate, Joan

    2014-07-08

    This study aimed to develop and validate a de novo food frequency questionnaire for self-defined vegans in the United States. Diet histories from pilot samples of vegans and a modified 'Block Method' using seven selected nutrients of concern in vegan diet patterns, were employed to generate the questionnaire food list. Food frequency responses of 100 vegans from 19 different U.S. states were obtained via completed mailed questionnaires and compared to multiple telephone-conducted diet recall interviews. Computerized diet analyses were performed. Correlation coefficients, t-tests, rank, cross-tabulations, and probability tests were used to validate and compare intake estimates and dietary reference intake (DRI) assessment trends between the two methods. A 369-item vegan-specific questionnaire was developed with 252 listed food frequency items. Calorie-adjusted correlation coefficients ranged from r = 0.374 to 0.600 (p vegans). This vegan-specific questionnaire can be a useful assessment tool for health screening initiatives in U.S. vegan communities.

  9. Evaluation of a Validated Food Frequency Questionnaire for Self-Defined Vegans in the United States

    Science.gov (United States)

    Dyett, Patricia; Rajaram, Sujatha; Haddad, Ella H.; Sabate, Joan

    2014-01-01

    This study aimed to develop and validate a de novo food frequency questionnaire for self-defined vegans in the United States. Diet histories from pilot samples of vegans and a modified ‘Block Method’ using seven selected nutrients of concern in vegan diet patterns, were employed to generate the questionnaire food list. Food frequency responses of 100 vegans from 19 different U.S. states were obtained via completed mailed questionnaires and compared to multiple telephone-conducted diet recall interviews. Computerized diet analyses were performed. Correlation coefficients, t-tests, rank, cross-tabulations, and probability tests were used to validate and compare intake estimates and dietary reference intake (DRI) assessment trends between the two methods. A 369-item vegan-specific questionnaire was developed with 252 listed food frequency items. Calorie-adjusted correlation coefficients ranged from r = 0.374 to 0.600 (p vegans). This vegan-specific questionnaire can be a useful assessment tool for health screening initiatives in U.S. vegan communities. PMID:25006856

  10. Assessment of Dietary Intakes of Filipino-Americans: Implications for Food Frequency Questionnaire Design

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    Johnson-Kozlow, Marilyn; Matt, Georg E.; Rock, Cheryl L.; de la Rosa, Ruth; Conway, Terry L.; Romero, Romina A.

    2011-01-01

    Objective: The purpose of this study was to describe food consumption practices of Filipino-American adults, to describe how they respond to a food frequency questionnaire (FFQ) as a function of acculturation and sex, and to suggest modifications to the FFQ to improve dietary assessment among Filipino-Americans. Methods: Twenty-one…

  11. Design characteristics of food frequency questionnaires in relation to their validity

    NARCIS (Netherlands)

    Molag, M.L.; Vries, J.H.M. de; Ocké, M.C.; Dagnelie, P.C.; Brandt, P.A. van den; Jansen, M.C.J.F.; Staveren, W.A. van; Veer, P. van 't

    2007-01-01

    The authors investigated the role of food frequency questionnaire (FFQ) design, including length, use of portion-size questions, and FFQ origin, in ranking subjects according to their nutrient intake. They also studied the ability of the FFQ to detect differences in energy intake between subgroups

  12. Design characteristics of food frequency questionnaires in relation to their validity

    NARCIS (Netherlands)

    Molag, M.L.; Vries, J.H.M. de; Ocké, M.C.; Dagnelie, P.C.; Brandt, P.A. van den; Jansen, M.C.J.F.; Staveren, W.A. van; Veer, P. van 't

    2007-01-01

    The authors investigated the role of food frequency questionnaire (FFQ) design, including length, use of portion-size questions, and FFQ origin, in ranking subjects according to their nutrient intake. They also studied the ability of the FFQ to detect differences in energy intake between subgroups a

  13. Validation of a quantitative food frequency questionnaire developed to under graduate students.

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    Komatsu, Tiemy Rosana; Oku, Simone Kimie; Gimeno, Suely Godoy Agostinho; Asakura, Leiko; Coelho, Luciola de Castro; Silva, Clarissa Viana Demezio da; Akutsu, Rita de Cassia Coelho Almeida; Sachs, Anita

    2013-12-01

    A validity test of a Food Frequency Questionnaire was carried out using 50 students of health occupation in São Paulo, Brazil. Therefore, a three day dietary record was used as reference method and variables such as energy, macronutrients and dietary fiber were analyzed. The accordance between the Food Frequency Questionnaire and average data from dietary record was tested with kappa statistics and intra-class correlation coefficients (ICC). Limits of agreement were estimated by the Bland-Altman's method. Better results were found for calories (ICC 0.43; 95%CI 0.17 - 0.63) and non-energy-adjusted nutrients, except dietary fiber (ICC 0.34; 95%CI 0.07 - 0.56). The percentage of individuals classified in the same category of consumption was nearly half (49.8%), while only 16% of them were classified in opposite categories. With the exception of lipids, other analyzed variables tended to be overestimated by the Food Frequency Questionnaire. The Food Frequency Questionnaire is recommended as a method of assessing food intake of university students in studies which focus on calorie estimates and also intend to classify groups into intake categories.

  14. A new food frequency questionnaire to assess chocolate and cocoa consumption.

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    Vicente, Filipa; Saldaña-Ruíz, Sandra; Rabanal, Manel; Rodríguez-Lagunas, María J; Pereira, Paula; Pérez-Cano, Francisco J; Castell, Margarida

    2016-01-01

    Cocoa has been highlighted as a food with potential benefits to human health because of its polyphenol content. However, few studies show the contribution of cocoa and chocolate products in polyphenol intake. The aim of this work was to develop a food frequency questionnaire (FFQ) for evaluating the intake of food products containing cocoa (C-FFQ). A sample of 50 university students was recruited to complete the 90-item questionnaire, a validated questionnaire (called here European Food Safety Authority [EFSA]-Q) as well as a 24-hour dietary recall (24 HDR). Spearman correlation test, Bland-Altman plots, and quintile classification analysis were conducted together with the Wilcoxon test and descriptive statistics. Significant correlations between the C-FFQ and the EFSA-Q for the most common cocoa/chocolate products were observed (P chocolate products frequently consumed by the participants were detected by the C-FFQ and 24 HDR which were not included in the EFSA-Q. According to the C-FFQ, chocolate bars were the main source of cocoa in university students, but dairy products also provided an important amount of cocoa. The developed C-FFQ questionnaire can be considered as a valid option for assessing the consumption frequency of cocoa/chocolate-derived products, thereby allowing the evaluation of cocoa polyphenol intake in further studies. Copyright © 2016 Elsevier Inc. All rights reserved.

  15. Performance of semiquantitative food frequency questionnaires in international comparisons. Mexico City versus San Antonio, Texas.

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    Stern, M P; Gonzalez, C; Hernandex, M; Knapp, J A; Hazuda, H P; Villapando, E; Valdez, R A; Haffner, S M; Mitchell, B D

    1993-05-01

    International dietary comparisons present a number of methodologic difficulties. We developed two semiquantitative food frequency questionnaires for use in Mexico City and San Antonio, Texas. The Mexico City questionnaire contained 85 food items and the San Antonio questionnaire contained 108. Thirty-six items were common to both questionnaires. The questionnaires were administered to 128 Mexican Americans, 35 to 64 years old, residing in a low-income barrio neighborhood of San Antonio and to 644 similarly aged Mexicans residing in a low-income "colonia" of Mexico City. Major differences in fat and carbohydrate intake as a percent of total kilocalories were observed between the two study groups, with Mexico City residents consuming approximately 18 to 21% of calories from fat and 68 to 72% from carbohydrate compared to 29 to 33% from fat and 48 to 52% from carbohydrate for Mexican Americans from San Antonio. Both of these differences were highly statistically significant (P San Antonio, seven were high in fat (> 30% of kilocalories), whereas this was true of only three of the top-ten foods in Mexico City.

  16. Evaluation of a semi-quantitative food frequency questionnaire to estimate iodine intake

    DEFF Research Database (Denmark)

    Rasmussen, Lone Banke; Ovesen, L.; Bulow, I.;

    2001-01-01

    Objective: To evaluate a food frequency questionnaire (FFQ) used to assess the dietary intake of iodine. Design: The iodine intake determined by the FFQ was compared with 4-day dietary records and with iodine excretion in 24 h urine samples in a subgroup of participants in a cross-sectional study...... dietary records and the correlation between these measures was 0.52 (P cross-check questions in the FFQ (for example the question 'How often did you get any kind of fish?') underestimated the intake. In contrast, the intake...

  17. Assessing Dietary Intake in Childhood Cancer Survivors: Food Frequency Questionnaire Versus 24-Hour Diet Recalls.

    Science.gov (United States)

    Zhang, Fang Fang; Roberts, Susan B; Must, Aviva; Wong, William W; Gilhooly, Cheryl H; Kelly, Michael J; Parsons, Susan K; Saltzman, Edward

    2015-10-01

    Cancer diagnosis and treatment may influence dietary intake. The validity of using self-reported methods to quantify dietary intake has not been evaluated in childhood cancer survivors. We validated total energy intake (EI) reported from Food Frequency Questionnaire (FFQ) and repeated 24-hour diet recalls (24HRs) against total energy expenditure (TEE) measured using the doubly labeled water method in 16 childhood cancer survivors. Dietary underreporting, assessed by (EI-TEE)/TEE × 100%, was 22% for FFQ and 1% for repeated 24HRs. FFQ significantly underestimates dietary intake and should not be used to assess the absolute intake of foods and nutrients in childhood cancer survivors.

  18. Role of Macronutrients and Micronutrients in DNA Damage: Results From a Food Frequency Questionnaire

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    Carina Ladeira

    2017-02-01

    Full Text Available The links between diet and genomic instability have been under investigation for several decades, and evidence suggests a significant causal or preventive role for various dietary factors. This study investigates the influence of macronutrients (calories, protein, and glucides and micronutrients, such as vitamins and minerals, as assessed by a food frequency questionnaire, on genotoxicity biomarkers measured by cytokinesis-blocked micronucleus assay and comet assay. The results found significant positive and negative correlations. Micronucleus frequency tends to increase with higher intake of caffeine, calcium, magnesium, zinc, and protein ( P  < .05, Spearman correlation. Calorie and omega-6 intakes are negatively correlated with DNA damage measured by the comet assay. These results are somewhat controversial because some of the correlations found are contrary to dominant views in the literature; however, we suggest that unraveling the association between diet and genetic instability requires a much better understanding of the modulating role of macronutrients and micronutrients.

  19. Role of Macronutrients and Micronutrients in DNA Damage: Results From a Food Frequency Questionnaire.

    Science.gov (United States)

    Ladeira, Carina; Carolino, Elisabete; Gomes, Manuel C; Brito, Miguel

    2017-01-01

    The links between diet and genomic instability have been under investigation for several decades, and evidence suggests a significant causal or preventive role for various dietary factors. This study investigates the influence of macronutrients (calories, protein, and glucides) and micronutrients, such as vitamins and minerals, as assessed by a food frequency questionnaire, on genotoxicity biomarkers measured by cytokinesis-blocked micronucleus assay and comet assay. The results found significant positive and negative correlations. Micronucleus frequency tends to increase with higher intake of caffeine, calcium, magnesium, zinc, and protein (P < .05, Spearman correlation). Calorie and omega-6 intakes are negatively correlated with DNA damage measured by the comet assay. These results are somewhat controversial because some of the correlations found are contrary to dominant views in the literature; however, we suggest that unraveling the association between diet and genetic instability requires a much better understanding of the modulating role of macronutrients and micronutrients.

  20. Role of Macronutrients and Micronutrients in DNA Damage: Results From a Food Frequency Questionnaire

    Science.gov (United States)

    Ladeira, Carina; Carolino, Elisabete; Gomes, Manuel C; Brito, Miguel

    2017-01-01

    The links between diet and genomic instability have been under investigation for several decades, and evidence suggests a significant causal or preventive role for various dietary factors. This study investigates the influence of macronutrients (calories, protein, and glucides) and micronutrients, such as vitamins and minerals, as assessed by a food frequency questionnaire, on genotoxicity biomarkers measured by cytokinesis-blocked micronucleus assay and comet assay. The results found significant positive and negative correlations. Micronucleus frequency tends to increase with higher intake of caffeine, calcium, magnesium, zinc, and protein (P < .05, Spearman correlation). Calorie and omega-6 intakes are negatively correlated with DNA damage measured by the comet assay. These results are somewhat controversial because some of the correlations found are contrary to dominant views in the literature; however, we suggest that unraveling the association between diet and genetic instability requires a much better understanding of the modulating role of macronutrients and micronutrients. PMID:28469462

  1. Assessment of consumption of marine food in Greenland by a food frequency questionnaire and biomarkers

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    Charlotte Jeppesen

    2012-05-01

    Full Text Available Objectives. We studied the association and agreement between questionnaire data and biomarkers of marine food among Greenland Inuit. Design. Cross sectional study. Methods. The study population comprised 2,224 Inuit, age 18+ (43% men; data collected 2005–2008 in Greenland. Using a food frequency questionnaire (FFQ, we calculated consumption of seal, whale, and fish (g/day and as meals/month, intake of eicosapentaenoic acid (EPA, docosahexaenoic acid (DHA, total N3, and mercury. We measured erythrocyte membrane fatty acids (FA and whole blood mercury (Hg. Associations were assessed by Pearson correlation and agreement between the 2 methods was assessed by Bland–Altman plots depicting mean difference between the methods. Using multiple linear regressions, the associations were studied between whole blood mercury, erythrocyte FA and frequency or gram per day of seal, whale, and fish. Results. Partial correlations ranged from r=0.16, p<0.0001 (DHA to r=0.56, p<0.0001 (mercury. The best fitted lines were found for mercury and DHA. Mean difference was negative for mercury but positive for all the FA biomarkers. In a multiple logistic regression analysis, the best association was found between whole blood mercury and seal consumption, both as frequency in meals and actual intake gram per day: β=1.07 µg (95% CI: 1.06; 1.08 and β=1.04 µg (95% CI: 1.03; 1.04, respectively. Conclusion. Mercury showed the best correlation and agreement between calculated and measured values. Calculated actual intake in gram per day and frequency of meals showed similar associations with whole blood mercury and erythrocyte membrane FAs.

  2. Improving quality of Food Frequency Questionnaire response in low-income Mexican American children.

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    Garcia-Dominic, Oralia; Treviño, Roberto P; Echon, Roger M; Mobley, Connie; Block, Torin; Bizzari, Ansam; Michalek, Joel

    2012-11-01

    The authors evaluated the validity and reliability of the Block Kids Food Frequency Questionnaire (BKFFQ) and the Block Kid Screener (BKScreener) in Mexican American children living along the Texas-Mexico border who participated in the National Institutes of Health-funded Proyecto Bienestar Laredo. The Bienestar/NEEMA health program is a school-based diabetes and obesity control program, and the Proyecto Bienestar Laredo is the translation of the Bienestar/NEEMA health program to 38 elementary schools in Laredo, Texas. Par ticipants included 2,376 eight-year-old boys (48%) and girls (52%) from two school districts in Laredo. Two Food Frequency Questionnaire (BKFFQ and BKScreener) dietary intakes were collected, and an expert panel of nutritionist assigned a classification response quality of "Good," "Questionable," and "Poor," based on playfulness (systematic or nonrandom) patterns and completion rates. In addition, both instruments were assessed for reliability (test-retest) in 138 students from a San Antonio School District. Children's height, weight, percentage body fat, reported family history of diabetes, and Texas Assessments of Knowledge and Skills in reading and mathematics scores were collected. This study showed that for Mexican American children living along the Texas-Mexico border, within the time constraints of the classroom, BKScreener yielded better data than the BKFFQ.

  3. Development, validity, and reliability of a food frequency questionnaire for antioxidants in elderly Iranian people

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    Mahsa Malekahmadi

    2016-01-01

    Full Text Available Background: The food frequency questionnaire (FFQ, as a way to assess the dietary intake in comparison with other methods, is easier to analyze and takes less time and is less costly. Our aim in this study was to develop and validate an FFQ for estimating the intakes of selected antioxidants in elderly Iranian people. Materials and Methods: A total of 185 elderly people were randomly selected. Three-day food records were completed by the subjects and collected every 2 months and dietary intake levels of zinc, selenium, carotenes and vitamins C and E were estimated. Based on the food records data, geographic location, and age, an FFQ was designed to estimate antioxidant intakes during 1 year. In addition, for controlling energy intake, 2-day food records were also collected with the food frequency questionnaire. To assess the reliability, 40 individuals were asked to complete the FFQ twice with an interval of 3 months in between. Results: Intraclass correlation coefficient (ICC between the two FFQs ​​for antioxidant C, antioxidant E, carotene, selenium, and zinc were 0.62, 0.47, 0.51, 0.54, and 0.58, respectively (P < 0.05. In addition, Pearson correlation coefficients between the FFQ and the food records, after controlling energy for vitamin C, vitamin E, carotene, selenium, and zinc, were 0.46, 0.48, 0.38, 0.55, and 0.47 respectively (P < 0.001. Conclusion: According to the results of this study, considering the fact that the FFQ was designed for the elderly and the special conditions (patience, memory, etc. and vulnerability of this age group, the questionnaire is relatively valid and reliable to use.

  4. Development, validity, and reliability of a food frequency questionnaire for antioxidants in elderly Iranian people

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    Malekahmadi, Mahsa; Naeini, Amirmansour Alavi; Shab-Bidar, Sakineh; Feizi, Awat; Djazayery, Abolghasem

    2016-01-01

    Background: The food frequency questionnaire (FFQ), as a way to assess the dietary intake in comparison with other methods, is easier to analyze and takes less time and is less costly. Our aim in this study was to develop and validate an FFQ for estimating the intakes of selected antioxidants in elderly Iranian people. Materials and Methods: A total of 185 elderly people were randomly selected. Three-day food records were completed by the subjects and collected every 2 months and dietary intake levels of zinc, selenium, carotenes and vitamins C and E were estimated. Based on the food records data, geographic location, and age, an FFQ was designed to estimate antioxidant intakes during 1 year. In addition, for controlling energy intake, 2-day food records were also collected with the food frequency questionnaire. To assess the reliability, 40 individuals were asked to complete the FFQ twice with an interval of 3 months in between. Results: Intraclass correlation coefficient (ICC) between the two FFQs for antioxidant C, antioxidant E, carotene, selenium, and zinc were 0.62, 0.47, 0.51, 0.54, and 0.58, respectively (P < 0.05). In addition, Pearson correlation coefficients between the FFQ and the food records, after controlling energy for vitamin C, vitamin E, carotene, selenium, and zinc, were 0.46, 0.48, 0.38, 0.55, and 0.47 respectively (P < 0.001). Conclusion: According to the results of this study, considering the fact that the FFQ was designed for the elderly and the special conditions (patience, memory, etc.) and vulnerability of this age group, the questionnaire is relatively valid and reliable to use. PMID:27904560

  5. Frequency of methotrexate intolerance in rheumatoid arthritis patients using methotrexate intolerance severity score (MISS questionnaire).

    Science.gov (United States)

    Fatimah, Nibah; Salim, Babur; Nasim, Amjad; Hussain, Kamran; Gul, Harris; Niazi, Sarah

    2016-05-01

    The objective of the study was to determine the frequency of methotrexate intolerance in rheumatoid arthritis (RA) patients by applying the methotrexate intolerance severity score (MISS) questionnaire and to see the effect of dose and concomitant use of other disease-modifying antirheumatic drugs (DMARDS) on methotrexate (MTX) intolerance. For the descriptive study, non-probability sampling was carried out in the Female Rheumatology Department of Fauji Foundation Hospital (FFH), Rawalpindi, Pakistan. One hundred and fifty diagnosed cases of RA using oral MTX were selected. The MISS questionnaire embodies five elements: abdominal pain, nausea, vomiting, fatigue and behavioural symptoms. The amplitude of each element was ranked from 0 to 3 being no complaint (0 points), mild (1 point), moderate (2 points) and severe (3 points). A cut-off score of 6 and above ascertained intolerance by the physicians. A total of 33.3 % of the subjects exhibited MTX intolerance according to the MISS questionnaire. Out of which, the most recurring symptom of all was behavioural with a value of 44 % whereas vomiting was least noticeable with a figure of 11 %. About 6.6 % of the women with intolerance were consuming DMARDs in conjunction with MTX. Those using the highest weekly dose of MTX (20 mg) had supreme intolerance with prevalence in 46.2 % of the patients. The frequency of intolerance decreased with a decrease in weekly dose to a minimum of 20 % with 7.5 mg of MTX. MTX intolerance has moderate prevalence in RA patients and if left undetected, the compliance to use of MTX as a first-line therapy will decrease. Methotrexate intolerance is directly proportional to the dose of MTX taken. Also, there is no upstroke seen in intolerance with the use of other disease-modifying agents.

  6. Development of a food frequency questionnaire to estimate habitual dietary intake in Japanese children

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    Imai Shino

    2010-04-01

    Full Text Available Abstract Background Food frequency questionnaires (FFQ are used for epidemiological studies. Because of the wide variations in dietary habits within different populations, a FFQ must be developed to suit the specific group. To date, no FFQ has been developed for Japanese children. In this study, we developed a FFQ to assess the regular dietary intake of Japanese children. The FFQ included questions regarding both individual food items and mixed dishes. Methods Children (3-11 years of age, n = 621 were recruited as subjects. Their parents or guardians completed a weighed dietary record (WDR for each subject in one day. We defined FOOD to be not only as a single food item but also as a mixed dish. The dieticians conceptually grouped similar FOODs as FOOD types. We used a contribution analysis and a multiple regression analysis to select FOOD types. Results We obtained a total of 586 children's dietary data (297 boys and 289 girls. In addition, we obtained 1,043 FOODs. Dieticians grouped into similar FOODs, yielding 275 FOOD types. A total of 115 FOOD types were chosen using a contribution analysis and a multiple regression analysis, then we excluded overlapping items. FOOD types that were eaten by fewer than 15 subjects were excluded; 74 FOOD types remained. We also added liver-based dishes that provided a high amount of retinol. A total of 75 FOOD types were finally determined for the FFQ. The frequency response formats were classified into four type categories: seven, eight, nine and eleven, according to the general intake frequency of each FOOD type. Information on portion size was obtained from the photographs of each listed FOOD type in real scale size, which was the average amount of the children's portion sizes. Conclusions Using both a contribution analysis and a multiple regression analysis, we developed a 75-food item questionnaire from the study involving 586 children. The next step will involve the verification of FFQ reproducibility

  7. Validation of the GSFQ, a Self-Administered Symptom Frequency Questionnaire for Patients with Gastroesophageal Reflux Disease

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    Pierre Paré

    2003-01-01

    Full Text Available BACKGROUND: Although the diagnosis of gastroesophageal reflux disease (GERD is based primarily on symptoms experienced by a patient, relatively little attention has been paid to the development and validation of self-administered questionnaires specific to GERD symptoms. The present article presents the validation of the short, self-administered GERD Symptom Frequency Questionnaire (GSFQ.

  8. Protein intake in Parkinsonian patients using the EPIC food frequency questionnaire.

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    Marczewska, Agnieszka; De Notaris, Roberta; Sieri, Sabina; Barichella, Michela; Fusconi, Elisabetta; Pezzoli, Gianni

    2006-08-01

    The dietary habits of 45 Italian patients with Parkinson's disease (PD) and their spouses were investigated using the EPIC food frequency questionnaire. Average daily energy intake was similar, but PD patients consumed significantly more vegetable proteins and carbohydrates (both +18%; P = 0.01 and P = 0.001, respectively). Daily protein intake, which interferes with levodopa absorption, was 50% higher than the recommended daily allowance (1.2 vs. 0.8 g/kg) in both PD patients and spouses and was significantly higher in patients with moderate/severe symptoms (1.27 +/- 0.29 vs. 1.07 +/- 0.28 g/kg; P protein intake (P = 0.027). Dietary habits of patients with advanced and/or fluctuating PD should always be checked, with particular reference to protein intake.

  9. [Development of Japanese versions of the Daydream Frequency Scale and the Mind Wandering Questionnaire].

    Science.gov (United States)

    Kajimura, Shogo; Nomura, Michio

    2016-04-01

    This study developed and examined the validity of Japanese versions of the Daydream Frequency Scale (DDFS) and the Mind Wandering Questionnaire (MWQ), which measures propensity for spontaneous thoughts and mind wandering, respectively. In Study 1, we translated the items of the DDFS and the MWQ into Japanese and verified their validity. In Study 2, we confirmed the correlation of both scales with mind wandering, as measured by thought sampling during an attention-demanding task. These two studies revealed a dissociation between the properties of the scales; while DDFS reflects propensity for spontaneous thoughts, MWQ specifically reflects propensity for mind,wandering. We discuss the usefulness of the DDFS and the MWQ for studying the psychological functions of spontaneous thoughts and mind wandering.

  10. Assessment of Pre-Pregnancy Dietary Intake with a Food Frequency Questionnaire in Alberta Women

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    Stephanie M. Ramage

    2015-07-01

    Full Text Available Purpose: Pre-pregnancy is an under-examined and potentially important time to optimize dietary intake to support fetal growth and development as well as maternal health. The purpose of the study was to determine the extent to which dietary intake reported by non-pregnant women is similar to pre-pregnancy dietary intake reported by pregnant women using the same assessment tool. Methods: The self-administered, semi-quantitative food frequency questionnaire (FFQ was adapted from the Canadian version of the Diet History Questionnaire, originally developed by the National Cancer Institute in the United States. Pregnant women (n = 98 completed the FFQ which assessed dietary intake for the year prior to pregnancy. Non-pregnant women (n = 103 completed the same FFQ which assessed dietary intake for the previous year. Energy, macronutrients, and key micronutrients: long-chain omega-3 fatty acids, folate, vitamin B6, vitamin B12, calcium, vitamin D and iron were examined. Results: Dietary intake between groups; reported with the FFQ; was similar except for saturated fat; trans fat; calcium; and alcohol. Pregnant women reported significantly higher intakes of saturated fat; trans fat; and calcium and lower intake of alcohol in the year prior to pregnancy compared to non-pregnant women who reported intake in the previous year. Conclusions: Despite limitations; a FFQ may be used to assist with retrospective assessment of pre-pregnancy dietary intake.

  11. Relative validity and reliability of a food frequency questionnaire in youth with type 1 diabetes

    Science.gov (United States)

    Liese, Angela D.; Crandell, Jamie L.; Tooze, Janet A.; Fangman, Mary T.; Couch, Sarah C.; Merchant, Anwar T.; Bell, Ronny A.; Mayer-Davis, Elizabeth J.

    2015-01-01

    Objective To evaluate the relative validity and reliability of the SEARCH food frequency questionnaire (FFQ) that was modified from the Block Kids Questionnaire. Design Study participants completed the 85-item FFQ twice plus three 24-hour dietary recalls within one month. We estimated correlations between frequencies obtained from participants with true usual intake for food groups and nutrients, using a two-part model for episodically-consumed foods and measurement error adjustment. Setting The multi-center SEARCH for Diabetes in Youth Nutrition Ancillary Study. Subjects A subgroup of 172 participants aged 10 - 24 years with type 1 diabetes. Results The mean correlations adjusted for measurement error of food groups and nutrients between FFQ and true usual intake were 0.41 and 0.38, respectively, with 57% of the food groups and 70% of the nutrients exhibiting correlations >0.35. Correlations were high for low-fat dairy (0.80), sugar-sweetened beverages (0.54), cholesterol (0.59) and saturated fat (0.51), while correlations were poor for high fiber bread and cereal (0.16) and folate (0.11). Reliability of FFQ intake based on two FFQ administrations was also reasonable with 54% of Pearson correlation coefficients ≥ 0.5. Reliability was high for low fat dairy (0.7), vegetables (0.6), carbohydrates, fiber, folate and vitamin C (all 0.5), but less than desirable for low fat poultry and high fiber bread, cereal, rice and pasta (0.2-0.3). Conclusions While there is some room for improvement, our findings suggest that the SEARCH FFQ performs quite well for the assessment of many nutrients and food groups in a sample of youth with type 1 diabetes. PMID:24679679

  12. Evaluation of a short food frequency questionnaire used among Norwegian children

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    Lene Andersen

    2012-01-01

    Full Text Available The aim of this study was to evaluate a short food frequency questionnaire (FFQ against a four-day precoded food diary (PFD with regard to frequency of food intake among Norwegian 9- and 13-year-olds.A total of 733 9-year-olds and 904 13-year-olds completed first a short FFQ and one to two weeks later a four-day PFD. The short FFQ included questions about 23 food items, including different drinks, fruits, vegetables, bread, fish, pizza, sweets, chocolate and savoury snacks. The PFD covered the whole diet.When comparing mean intake from the PFD with comparable food items in the FFQ, all food items showed that increasing intake measured with the PFD corresponded with increasing intake with the short FFQ. However, participants reported a significantly higher frequency of intake for most foods with the short FFQ compared with PFD, except for soft drinks with sugar and sweets. The median Spearman correlation coefficient between the two methods was 0.36 among the 9-year-olds and 0.32 among the 13-year-olds. Often eaten foods such as fruits and vegetables had higher correlations than seldom eaten foods such as pizza and potato chips. The median correlation coefficients for drinks alone were higher (r=0.47 for both age groups.Results indicate that the short FFQ was able to identify high and low consumers of food intake and had a moderate capability to rank individuals according to food intake. Drinks, fruits and vegetables had better correlations with the PFD than infrequently eaten food items.

  13. Estimating children's eating habits. Validity of a questionnaire measuring food frequency compared to a 7-day record.

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    Blom, L; Lundmark, K; Dahlquist, G; Persson, L A

    1989-11-01

    A questionnaire measuring food frequency was validated against 7-day records of food intake in a group of 30 children, 2-16 years of age. Special emphasis was given to the ability of the questionnaire to estimate frequency of intake of foods of particular interest in diabetes mellitus. Fifteen children had insulin-dependent diabetes; 15 were healthy. Comparison of the two methods regarding frequency of foods with high content of sucrose, protein, fat, fibres, nitrite or vitamin C showed a correlation of 0.52-0.76. The frequency of intake of some staple foods was often overestimated by the questionnaire, while the frequency of meat, sausage and some sweet snacks was underestimated. The use of the questionnaire to identify high or low consumers of the mentioned nutrients showed a rather low sensitivity (0.38-0.50), but a high specificity (0.86-1.0) when compared with results of the 7-day record. In our limited sample of subjects no systematic differences were found comparing sexes or diabetic and healthy children. A food frequency questionnaire may, in spite of some important reservations, be a useful tool for screening purposes when more time-consuming and resource-demanding methods cannot be used.

  14. Assessment of consumption of marine food in Greenland by a food frequency questionnaire and biomarkers

    DEFF Research Database (Denmark)

    Jeppesen, Charlotte; Jørgensen, Marit Eika; Bjerregaard, Peter

    2012-01-01

    We studied the association and agreement between questionnaire data and biomarkers of marine food among Greenland Inuit.......We studied the association and agreement between questionnaire data and biomarkers of marine food among Greenland Inuit....

  15. Sugar snack consumption in Ugandan schoolchildren: Validity and reliability of a food frequency questionnaire.

    Science.gov (United States)

    Kiwanuka, S N; Astrøm, A N; Trovik, T A

    2006-10-01

    This study assessed the reproducibility and relative validity of an eight-item self-administered food frequency questionnaire (FFQ) on intake of sugared snacks in Ugandan schoolchildren. A 5-day precoded food behaviour checklist (FBC) was used as validation criteria. Sociodemographic correlates of a sum frequency sugar score were explored. The study was conducted in Kampala, Uganda, in 2004. Six hundred and fourteen schoolchildren (mean age 12.4 years) completed the FFQ on cakes/biscuits, chocolate, ice sticks, soft drinks, coffee, tea, sugared desserts and sweets/candies at school. They were examined clinically for dental caries. Forty students completed the FFQ twice, 1 week apart and 325 students completed the 5 day FBC at school. The mean decayed, missing and filled tooth index score was 0.98 (SD 1.6, range 0-15). Reproducibility scores (Cohen's kappa) for the sugar items ranged from 0.17 (ice sticks) to 0.55 (biscuits). No differences were seen between the average intakes at test and retest. Higher intake was reported in FFQ than in FBC across all sugar items. Crude agreement between students reporting intake at least 3-5 times a week/less than three times a week ranged from 50% to 55% (e.g. biscuits, chocolate) to 87% (tea). Spearman's correlation coefficients ranged from 0.14 (desserts) to 0.27 (sweets). anova revealed significant increase (P = 0.001) in the mean FBC sum scores by increasing quartiles of the FFQ sum scores. The average sum FFQ sugar scores were higher in girls than in boys and higher in older than in younger students. Fair reproducibility was established for the FFQ sugar items. The FFQ was acceptable in classifying individuals into broad categories of low and high sugar consumption.

  16. Development of a quantitative food frequency questionnaire for use among the Yup'ik people of Western Alaska.

    Science.gov (United States)

    Kolahdooz, Fariba; Simeon, Desiree; Ferguson, Gary; Sharma, Sangita

    2014-01-01

    Alaska Native populations are experiencing a nutrition transition and a resulting decrease in diet quality. The present study aimed to develop a quantitative food frequency questionnaire to assess the diet of the Yup'ik people of Western Alaska. A cross-sectional survey was conducted using 24-hour recalls and the information collected served as a basis for developing a quantitative food frequency questionnaire. A total of 177 males and females, aged 13-88, in six western Alaska communities, completed up to three 24-hour recalls as part of the Alaska Native Dietary and Subsistence Food Assessment Project. The frequency of the foods reported in the 24-hour recalls was tabulated and used to create a draft quantitative food frequency questionnaire, which was pilot tested and finalized with input from community members. Store-bought foods high in fat and sugar were reported more frequently than traditional foods. Seven of the top 26 foods most frequently reported were traditional foods. A 150-item quantitative food frequency questionnaire was developed that included 14 breads and crackers; 3 cereals; 11 dairy products; 69 meats, poultry and fish; 13 fruit; 22 vegetables; 9 desserts and snacks; and 9 beverages. The quantitative food frequency questionnaire contains 39 traditional food items. This quantitative food frequency questionnaire can be used to assess the unique diet of the Alaska Native people of Western Alaska. This tool will allow for monitoring of dietary changes over time as well as the identification of foods and nutrients that could be promoted in a nutrition intervention program intended to reduce chronic disease.

  17. Development of a quantitative food frequency questionnaire for use among the Yup'ik people of Western Alaska.

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    Fariba Kolahdooz

    Full Text Available Alaska Native populations are experiencing a nutrition transition and a resulting decrease in diet quality. The present study aimed to develop a quantitative food frequency questionnaire to assess the diet of the Yup'ik people of Western Alaska. A cross-sectional survey was conducted using 24-hour recalls and the information collected served as a basis for developing a quantitative food frequency questionnaire. A total of 177 males and females, aged 13-88, in six western Alaska communities, completed up to three 24-hour recalls as part of the Alaska Native Dietary and Subsistence Food Assessment Project. The frequency of the foods reported in the 24-hour recalls was tabulated and used to create a draft quantitative food frequency questionnaire, which was pilot tested and finalized with input from community members. Store-bought foods high in fat and sugar were reported more frequently than traditional foods. Seven of the top 26 foods most frequently reported were traditional foods. A 150-item quantitative food frequency questionnaire was developed that included 14 breads and crackers; 3 cereals; 11 dairy products; 69 meats, poultry and fish; 13 fruit; 22 vegetables; 9 desserts and snacks; and 9 beverages. The quantitative food frequency questionnaire contains 39 traditional food items. This quantitative food frequency questionnaire can be used to assess the unique diet of the Alaska Native people of Western Alaska. This tool will allow for monitoring of dietary changes over time as well as the identification of foods and nutrients that could be promoted in a nutrition intervention program intended to reduce chronic disease.

  18. Zinc-specific food frequency questionnaire to assess college women's eating habits.

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    Lacey, Janet M; Zotter, Deanne U

    2009-01-01

    Zinc deficiency has been reported in individuals with eating disorders, the risks of which increase during the adolescent and early adult years. A food frequency questionnaire (FFQ) specific for zinc-rich foods was tested for its usefulness in identifying problematic eating behaviour tendencies in college-age women. Ninety-two female students enrolled in a university introductory psychology course volunteered to complete demographic information, the Eating Attitudes Test (EAT-26), and a zinc-specific FFQ (ZnFFQ). Relationships among estimated zinc intakes, food/lifestyle habits, and eating attitude variables were examined. Twenty-five women had estimated intakes below the Recommended Dietary Allowance (RDA) for zinc. Individuals in the highest zinc intake group (over twice the RDA) had a tendency to score higher on the EAT-26 and the bulimia subscale. Vegetarians also scored high on the EAT-26. Although our data are limited, the ZnFFQ should be studied further to determine whether it could play a useful role in identifying individuals at risk for bulimia. The ZnFFQ is a simple, non-confrontational assessment tool and may be a helpful starting point for identifying women with unhealthy eating habits.

  19. Relative validity of a food frequency questionnaire to identify dietary patterns in an adult Mexican population

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    Edgar Denova-Gutiérrez

    2016-12-01

    Full Text Available Objective. To examine the validity of a semi-quantitative food frequency questionnaire (SFFQ to identify dietary patterns in an adult Mexican population. Materials and methods. A 140-item SFFQ and two 24-hour dietary recalls (24DRs were administered. Foods were categorized into 29 food groups used to derive dietary patterns via factor analy­sis. Pearson and intraclass correlations coefficients between dietary pattern scores identified from the SFFQ and 24DRs were assessed. Results. Pattern 1 was high in snacks, fast food, soft drinks, processed meats and refined grains; pattern 2 was high in fresh vegetables, fresh fruits, and dairy products; and pattern 3 was high in legumes, eggs, sweetened foods and sugars. Pearson correlation oefficients between the SFFQ and the 24DRs for these patterns were 0.66 (P<0.001, 0.41 (P<0.001 and 0.29 (P=0.193 respectively. Conclusions. Our data indicate reasonable validity of the SFFQ, using fac­tor analysis, to derive major dietary patterns in comparison with two 24DR.

  20. Frequency and Influencing Factors of Rubber Dam Usage in Tianjin: A Questionnaire Survey

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    Huiru Zou

    2016-01-01

    Full Text Available Objective. To investigate the frequency and influencing factors of rubber dam usage for endodontic procedures among general dentistry practitioners and specialized practitioners (endodontist in Tianjin. Methods. Three hundred questionnaires were distributed among practitioners from 3 different types of medical institutions in Tianjin. Data were collected and analysed using Chi-square tests. Results. There were 63.3% of respondents who have used rubber dam (response rate 82.7%, valid response rate 76.3%. However, only 0.4% and 3.1% of them recognized using rubber dam “every time” during caries direct restoration and root canal therapy, respectively. There was no significant difference in rubber dam usage between male and female practitioners. Among the respondents, practitioners with working experience between 5 and 10 years showed the highest usage rate (76.3%, while practitioners working more than 20 years showed the lowest (53.2%. The endodontists gained the highest and the most frequent usage rate and the best rubber dam technique mastering skills. Practitioners working in those stomatological departments of general hospitals showed the lowest rubber dam usage rate. Conclusions. The prevalence of rubber dam usage in Tianjin city is still low. The practitioner’s gender, years of professional experience, general or specialized field, and the type of dental setting they work for are the factors that need to be considered during making policy and executing training.

  1. Development and validation of a food frequency questionnaire to estimate the intake of genistein in Malaysia.

    Science.gov (United States)

    Fernandez, Anne R; Omar, Siti Zawiah; Husain, Ruby

    2013-11-01

    To develop and validate a food frequency questionnaire (FFQ) to estimate the genistein intake in a Malaysian population of pregnant women. A single 24-h dietary recall was obtained from 40 male and female volunteers. A FFQ of commonly consumed genistein-rich foods was developed from these recalls, and a database of the genistein content of foods found in Malaysia was set up. The FFQ was validated against 7-d food diary (FD) kept by 46 pregnant women and against non-fasting serum samples obtained from 64 pregnant women. Reproducibility was assessed by comparing the responses on two FFQs administered approximately 1 month apart. The Pearson correlation coefficient between FFQ1 and FD was 0.724 and that between FFQ2 and FD was 0.807. Classification into the same or adjacent quintiles was 78% for FFQ1 versus FD and 88% for FFQ2 versus FD. A significant dose -- response relation was found between FFQ-estimated genistein intake and serum levels. The FFQ developed is a reliable, valid tool for categorising people by level of genistein intake.

  2. Food consumption habits in two states of Australia, as measured by a Food Frequency Questionnaire

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    Daly Alison M

    2011-11-01

    Full Text Available Abstract Background Obesity is an important public health problem in Australia, and monitoring the nutritional intake of the population is an important endeavour. One way to assess food habits is via Food Frequency Questionnaires (FFQ. This pilot study used a routine telephone risk factor surveillance survey to recruit participants in South Australia (SA and Western Australia (WA to a postal survey investigating food consumption habits, using a FFQ. Respondents were also asked specific additional questions about their fruit and vegetable consumption and also about their height and weight so that comparisons could be made between the data collected in the risk factor surveillance system and the postal survey. Findings In total, 1275 respondents (65% of eligible telephone respondents completed the postal survey. The results of the FFQ were very similar for WA and SA. Western Australians consumed statistically significantly more serves of vegetables than South Australians (t = 2.69 df = 1245 p Conclusions Although a wide variety of foods were consumed, guidelines for fruit and vegetable consumption were not being met and overweight and obesity continue to be issues in this population.

  3. Carotenoid Intakes, Assessed by food frequency questionnaires are associated with serum carotenoid concentrations in the Jackson Heart Study: Validation of the Jackson Heart Study Delta NIRI Adult Food Frequency Questionnaire

    Science.gov (United States)

    Objectives: Intake and status of carotenoids have been associated with chronic disease. The objectives of this study were to examine the association between carotenoid intakes as measured by two regional food-frequency questionnaires (FFQs) and their corresponding measures in serum, and to report ...

  4. Repeatability and relative validity of a quantitative food-frequency questionnaire among French adults

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    Emmanuel Barrat

    2012-10-01

    Full Text Available Background: A 50-item self-administered food frequency questionnaire (FFQ was developed for French adults, to assess the intake of energy, 10 macronutrients, 11 vitamins, and 11 minerals, and to be used in the context of a medical consultation. Objective: To assess the repeatability and relative validity of this FFQ compared to a 7-day diet record (7-DR. Design: A total of 54 and 100 French adults were included in the repeatability and validation studies, respectively. Repeatability was assessed using two FFQs, the second carried out 3 weeks after the first. In the validation study, subjects first completed the FFQ, then the 7-DR the following week. Energy and nutrient intakes were compared using Pearson correlation. The degree of misclassification by the FFQ, compared to the 7-DR, was calculated by a contingency table of quintiles. Bland–Altman plots assessed the correlation between FFQ and 7-DR across the intake range. Results: Repeatability for intake, explored by Pearson correlation, was 0.62–0.90 (median: 0.81. Relative validity, as determined by Pearson correlation for the nutrient intake derived from the FFQ and 7-DR, was 0.36–0.80 (0.64. The FFQ tended to report higher fiber and micronutrient intake than 7-DR. Misclassification into opposite quintiles ranged 0–6% (1%, whereas classification into same or adjacent quintiles ranged 59–83% (74%. Bland–Altman plots showed good agreement for most nutrients across the range of intake. Conclusion: This new FFQ showed a high repeatability and good relative validity, and thanks to its short length, should be a useful tool for rapidly evaluating the nutrient intake of French adults.

  5. Reproducibility and validity of a food frequency questionnaire among pregnant women in a Mediterranean area

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    Vioque Jesús

    2013-02-01

    Full Text Available Abstract Background Studies exploring the role of diet during pregnancy are still scarce, in part due to the complexity of measuring diet and to the lack of valid instruments. The aim of this study was to examine the reproducibility and validity (against biochemical biomarkers of a semi-quantitative food frequency questionnaire (FFQ in pregnant women. Methods Participants were 740 pregnant women from a population-based birth cohort study in Valencia (INMA Study. We compared nutrient and food intakes from FFQs estimated for two periods of pregnancy (reproducibility, and compared energy-adjusted intake of several carotenoids, folate, vitamin B12, vitamin C and α-tocopherol of the FFQ in the first trimester with their concentration in blood specimens (validity. Results Significant correlations for reproducibility were found for major food groups and nutrients but not for lycopene (r=0.06; the average correlation coefficients for daily intake were 0.51 for food groups and 0.61 for nutrients. For validity, statistically significant correlations were observed for vitamin C (0.18, α-carotene (0.32, β-carotene (0.22, lutein-zeaxantin (0.29 and β-cryptoxantin(0.26; non-significant correlations were observed for retinol, lycopene, α-tocopherol, vitamin B12 and folate (r≤0.12. When dietary supplement use was considered, correlations were substantially improved for folate (0.53 and to a lesser extent for vitamin B12 (0.12 and vitamin C (0.20. Conclusion This study supports that the FFQ has a good reproducibility for nutrient and food intake, and can provide a valid estimate of several important nutrients during pregnancy.

  6. Biochemical Validation of the Older Australian’s Food Frequency Questionnaire Using Carotenoids and Vitamin E

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    Jun S. Lai

    2014-11-01

    Full Text Available Background: Validation of a food frequency questionnaire (FFQ is important, as inaccurate and imprecise information may affect the association between dietary exposure and health outcomes. Objective: This study assessed the validity of the Older Australian’s FFQ against plasma carotenoids and Vitamin E. Methods: A random subsample (n = 150 of 2420 participants in the Hunter Community Study, aged 55–85 years, were included. Correlations between crude and energy-adjusted FFQ estimates of carotenoids, Vitamin E, and fruit and vegetables with corresponding biomarkers were determined. Percentages of participants correctly classified in the same quartile, and in the same ± 1 quartile, by the two methods were calculated. Results: Significant correlations (P < 0.05 were observed for α-carotene (r = 0.26–0.28, β-carotene (r = 0.21–0.25, and β-cryptoxanthin (r = 0.21–0.23. Intakes of fruits and vegetables also showed similar correlations with these plasma carotenoids. Lycopene was only significantly correlated with fruit and vegetable intakes (r = 0.19–0.23. Weak correlations were observed for lutein + zeaxanthin (r = 0.12–0.16. For Vitamin E, significant correlation was observed for energy-adjusted FFQ estimate and biomarker (r = 0.20. More than 68% of individuals were correctly classified within the same or adjacent quartile, except for lutein + zeaxanthin. Conclusion: With the exception of lutein + zeaxanthin, the Older Australian’s FFQ provides reasonable rankings for individuals according to their carotenoids, Vitamin E, fruit and vegetable intakes.

  7. Validity of a Semi-Quantitative Food Frequency Questionnaire for Collegiate Athletes

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    Ayaka Sunam

    2016-06-01

    Full Text Available Background: Food frequency questionnaires (FFQs have been developed and validated for various populations. To our knowledge, however, no FFQ has been validated for young athletes. Here, we investigated whether an FFQ that was developed and validated to estimate dietary intake in middle-aged persons was also valid for estimating that in young athletes. Methods: We applied an FFQ that had been developed for the Japan Public Health Center-based Prospective Cohort Study with modification to the duration of recollection. A total of 156 participants (92 males completed the FFQ and a 3-day non-consecutive 24-hour dietary recall (24hDR. Validity of the mean estimates was evaluated by calculating the percentage differences between the 24hDR and FFQ. Ranking estimation was validated using Spearman’s correlation coefficient (CC, and the degree of miscategorization was determined by joint classification. Results: The FFQ underestimated energy intake by approximately 10% for both males and females. For 35 nutrients, the median (range deattenuated CC was 0.30 (0.10 to 0.57 for males and 0.32 (−0.08 to 0.62 for females. For 19 food groups, the median (range deattenuated CC was 0.32 (0.17 to 0.72 for males and 0.34 (−0.11 to 0.58 for females. For both nutrient and food group intakes, cross-classification analysis indicated extreme miscategorization rates of 3% to 5%. Conclusions: An FFQ developed and validated for middle-aged persons had comparable validity among young athletes. This FFQ might be useful for assessing habitual dietary intake in collegiate athletes, especially for calcium, vitamin C, vegetables, fruits, and milk and dairy products.

  8. Relative validation of a food frequency questionnaire for national health and nutrition monitoring

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    Haftenberger Marjolein

    2010-09-01

    Full Text Available Abstract Background Validation of a food frequency questionnaire (FFQ is important as incorrect information may lead to biased associations. Therefore the relative validity of an FFQ developed for use in the German Health Examination Survey for Adults 2008-2011 (DEGS was examined. Methods Cross-sectional comparisons of food consumption data from the FFQ and from two 24-hour recalls were made in a sample of 161 participants (aged 18 to 80 years of an ongoing nationwide survey, the German National Nutrition Monitoring (NEMONIT. The data collection took place from November 2008 to April 2009. Results Spearman rank correlations between the FFQ and the 24-hour dietary recalls ranged from 0.15 for pizza to 0.80 for tea, with two third of the correlation coefficients exceeding 0.30. All correlation coefficients were statistically significant except those for pizza and cooked vegetables. The proportion of participants classified into the same or adjacent quartile of intake assessed by both methods varied between 68% for cooked vegetables and 94% for coffee. There were no statistically significant differences in food consumption estimates between both methods for 38% of the food groups. For the other food groups, the estimates of food consumption by the FFQ were not generally higher or lower than estimates from the 24-hour dietary recalls. Conclusions The FFQ appears to be reasonably valid in the assessment of food consumption of German adults. For some food groups, such as raw and cooked vegetables, relative risks estimates should be interpreted with caution because of the poor ranking agreement.

  9. Relative validity and reliability of a quantitative food frequency questionnaire for adults in Guam

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    Rachael T. Leon Guerrero

    2015-05-01

    Full Text Available Background: Guam is a US territory in the western Pacific with a diverse population that includes understudied ethnic groups such as Chamorros and Filipinos. A food frequency questionnaire (FFQ to estimate dietary intake was needed to facilitate studies of diet and health among adults living in Guam. Objective: To develop and validate an FFQ to assess dietary intake over a 1-year period among adult Guam residents. Design: A three-part study was conducted: 1 an initial cross-sectional study using 24-h recalls to identify a food and beverage list for the FFQ and resulting in a final FFQ containing 142 food and drink items; 2 to test reliability, 56 different individuals completed the FFQ twice; and 3 to test relative validity, self-administered FFQs and up to 2 days of food record data from an additional 109 individuals were collected, and daily nutrient intake from the two methods was compared. Results: The reliability of the FFQ was very good (ρ range=0.65–0.75, and the relative validity of the FFQ was good for women (median Spearman's correlation [ρ] between instruments of 0.45 across 20 nutrients and an interquartile range [IQR] of 0.42–0.58 and generally adequate for men (median ρ=0.31, IQR=0.23–0.55. Validity was also good for Chamorros (median ρ=0.47, IQR=0.38–0.53 and generally adequate for Filipinos (median ρ=0.42, IQR=0.20–0.62. Correlations after energy adjustment were lower (overall median ρ=0.20, IQR=0.14–0.26. Conclusions: The FFQ can be used to rank nutrient intake for adults in Guam and may be helpful in the analysis of relationships between diet and chronic disease in Guam.

  10. Relative Validity of Three Food Frequency Questionnaires for Assessing Dietary Intakes of Guatemalan Schoolchildren.

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    Jessica Marcinkevage

    Full Text Available To determine the relative validity of three food frequency questionnaires (FFQs compared with results from 24-hour dietary recalls for measuring dietary intakes in Guatemalan schoolchildren.A cross-sectional study of primary caregivers (mothers or grandmothers of 6-11 year-old children. Caregivers completed one of three constructed FFQs to measure the child's dietary consumption in the last week: FFQ1 did not incorporate portion sizes; FFQ2 provided portion sizes; and FFQ3 incorporated pictures of median portion sizes. During the same week, each caregiver also completed three 24-hour dietary recalls. Results from the FFQ were compared with corresponding results from the 24-hour dietary recalls.Santa Catarina Pinula, peri-urban Guatemala City.Caregivers (n = 145 of 6-11 year-old children: 46 completed FFQ1, 49 completed FFQ2, and 50 completed FFQ3.The mean values for all nutrients obtained from the 24-hour dietary recall were lower than for those obtained from the FFQs, excluding folic acid in FFQ3, cholesterol and zinc in FFQ2, and cholesterol, folic acid, magnesium, potassium, sodium, and zinc in FFQ1. Energy-adjusted Pearson correlation coefficients ranged from 0.07 (protein to 0.54 (cholesterol for FFQ1 and from 0.05 to 0.74 for FFQ2 and FFQ3. Agreement by both methods (FFQ and 24-hour dietary recalls of classifying children into the same or adjacent quartiles of energy-adjusted nutrient consumption ranged from 62.0% for cholesterol to 95.9% for vitamin B12 across all three FFQs.Our FFQs had moderate to good relative validity in measuring energy and nutrient intakes for 6-11 year-old Guatemalan children. More evidence is needed to evaluate their reproducibility and applicability in similar populations.

  11. Relative validity of fruit and vegetable intake estimated by the food frequency questionnaire used in the Danish National Birth Cohort

    DEFF Research Database (Denmark)

    Mikkelsen, Tina B.; Olsen, Sjurdur F.; Rasmussen, Salka E.

    2007-01-01

    Objective: To validate the fruit and vegetable intake estimated from the Food Frequency Questionnaire (FFQ) used in the Danish National Birth Cohort (DNBC). Subjects and setting: The DNBC is a cohort of 101,042 pregnant women in Denmark, who received a FFQ by mail in gestation week 25. A validation...... the FFQ correlated significantly with urinary flavonoids ( r=0.39, p...

  12. A semiquantitative food frequency questionnaire for use in epidemiologic research among the elderly: Validation by comparison with dietary history

    NARCIS (Netherlands)

    Grootenhuis, P.A.; Westenbrink, S.; Sie, C.M.T.L.; Neeling, J.N.D. de; Kok, F.J.; Bouter, L.M.

    1995-01-01

    A self-administered semiquantitative food frequency questionnaire including 75 food items and providing information on the habitual intake of 31 nutritional parameters, based on the intake of protein, fat, carbohydrate, fiber and 11 vitamins and minerals, was developed for use in epidemiologic

  13. Dietary assessment in the elderly: Application of a two-step semiquantitative food frequency questionnaire for epidemiological studies

    NARCIS (Netherlands)

    Klipstein-Grobusch, K.; Witteman, J.C.M.; Breeijen, J.H. den; Goldbohm, R.A.; Hofman, A.; Jong, P.T.V.M. de; Pols, H.A.; Grobbee, D.E.

    1999-01-01

    Objective: Description and application of an adapted semiquantitative food frequency questionnaire (SFFQ) for dietary assessment in the elderly population of the Rotterdam Study. Design: Dietary assessment consisting of a two-step approach was performed in 5434 participants (2225 men, 3029 women) of

  14. A semiquantitative food frequency questionnaire for use in epidemiologic research among the elderly: Validation by comparison with dietary history

    NARCIS (Netherlands)

    Grootenhuis, P.A.; Westenbrink, S.; Sie, C.M.T.L.; Neeling, J.N.D. de; Kok, F.J.; Bouter, L.M.

    1995-01-01

    A self-administered semiquantitative food frequency questionnaire including 75 food items and providing information on the habitual intake of 31 nutritional parameters, based on the intake of protein, fat, carbohydrate, fiber and 11 vitamins and minerals, was developed for use in epidemiologic resea

  15. Relative validity of the food frequency questionnaire used to assess dietary intake in the Leiden Longevity Study

    NARCIS (Netherlands)

    Streppel, M.T.; Vries, de J.H.M.; Meyboom, S.; Beekman, M.; Craen, A.J.M.; Slagboom, P.E.; Feskens, E.J.M.

    2013-01-01

    Background - Invalid information on dietary intake may lead to false diet-disease associations. This study was conducted to examine the relative validity of the food frequency questionnaire (FFQ) used to assess dietary intake in the Leiden Longevity Study. Methods - A total of 128 men and women part

  16. Validity and calibration of Food Frequency Questionnaires used with African American adults in the Jackson Heart Study

    Science.gov (United States)

    This paper details the calibration process and validity of two Food Frequency Questionnaires (FFQs) developed for use in investigating diet disease relationships existing within the African American population. A calibration design was used which included comparison of mean nutrient intakes from fo...

  17. Relative validation of the KiGGS Food Frequency Questionnaire among adolescents in Germany

    Directory of Open Access Journals (Sweden)

    Truthmann Julia

    2011-12-01

    Full Text Available Abstract Background The aim of this study was to determine the relative validity of the self-administered Food Frequency Questionnaire (FFQ "What do you eat?", which was used in the German National Health Interview and Examination Survey for Children and Adolescents (KiGGS 2003-2006. Methods The validation was conducted in the EsKiMo Nutrition Module, a subsample of KiGGS. The study population included 1,213 adolescents aged between 12 and 17. A modified diet history interview DISHES (Dietary Interview Software for Health Examination Studies was used as the reference method. In order to compare the food groups, the data assessed with both instruments were aggregated to 40 similar food groups. The statistical analysis included calculating and comparing Spearman's correlation coefficients, calculating the mean difference between both methods, and ranking participants (quartiles according to food group consumption, including weighted kappa coefficients. Correlations were also evaluated for relative body weight and socioeconomic status subgroups. Results In the total study population the Spearman correlation coefficients ranged from 0.22 for pasta/rice to 0.69 for margarine; most values were 0.50 and higher. The mean difference ranged between 1.4% for milk and 100.3% for pasta/rice. The 2.5 percentiles and 97.5 percentiles indicated a wide range of differences. Classifications in the same and adjacent quartile varied between 70.1% for pasta/rice and 90.8% for coffee. For most groups, Cohen's weighted kappa showed values between 0.21 and 0.60. Only for white bread and pasta/rice were values less than 0.20. Most of the 40 food groups showed acceptable to good correlations in all investigated subgroups concerning age, sex, body weight and socio-economic status. Conclusions The KiGGS FFQ showed fair to moderate ranking validity except for pasta/rice and white bread. However, the ability to assess absolute intakes is limited. The correlation coefficients

  18. Reproducibility and comparative validity of a food frequency questionnaire for Australian children and adolescents

    Directory of Open Access Journals (Sweden)

    Dibley Michael J

    2009-09-01

    Full Text Available Abstract Background Dietary intake during childhood and adolescence is of increasing interest due to its influence on adult health, particularly obesity, cardiovascular disease and diabetes. There is a need to develop and validate dietary assessment methods suitable for large epidemiologic studies of children and adolescents. Limited large scale dietary studies of youth have been undertaken in Australia, due partly to the lack of a suitable dietary intake tool. A self-administered, semi-quantitative food-frequency questionnaire (FFQ, the 'Australian Child and Adolescent Eating Survey' (ACAES, was developed for youth aged 9-16 years. This study evaluated reproducibility and comparative validity of the ACAES FFQ using assisted food records (FRs as the reference method. Methods The ACAES FFQ was completed twice (FFQ1 and FFQ2 at an interval of 5 months, along with four one-day assisted FRs. Validity was evaluated by comparing the average of the FRs with FFQ2 (n = 113 as well as with the average of FFQ1 and FFQ2 (n = 101. Reproducibility was evaluated by comparing FFQ1 and FFQ2 (n = 101. The two methods were compared using correlations, Kappa statistics and Bland-Altman plots. Results Correlation coefficients for comparative validity ranged from 0.03 for retinol to 0.56 for magnesium for transformed, energy-adjusted, deattenuated nutrient data, with correlation coefficients greater than 0.40 for total fat, saturated fat, monounsaturated fat, carbohydrate, sugars, riboflavin, vitamin C, folate, beta-carotene, magnesium, calcium and iron. Correlation coefficients for reproducibility ranged from 0.18 for vitamin A to 0.50 for calcium for transformed, energy-adjusted, deattenuated nutrient data. The ACAES FFQ ranked individuals reasonably accurately, with the comparative validity analysis showing that over 50% of participants were classified within one quintile for all nutrients, with only a small percentage grossly misclassified (0-7%. Conclusion The

  19. Assessing validity of a short food frequency questionnaire on present dietary intake of elderly Icelanders

    Directory of Open Access Journals (Sweden)

    Eysteinsdottir Tinna

    2012-03-01

    Full Text Available Abstract Background Few studies exist on the validity of food frequency questionnaires (FFQs administered to elderly people. The aim of this study was to assess the validity of a short FFQ on present dietary intake, developed specially for the AGES-Reykjavik Study, which includes 5,764 elderly individuals. Assessing the validity of FFQs is essential before they are used in studies on diet-related disease risk and health outcomes. Method 128 healthy elderly participants (74 y ± 5.7; 58.6% female answered the AGES-FFQ, and subsequently filled out a 3-day weighed food record. Validity of the AGES-FFQ was assessed by comparing its answers to the dietary data obtained from the weighed food records, using Spearman's rank correlation, Chi-Square/Kendall's tau, and a Jonckheere-Terpstra test for trend. Result For men a correlation ≥ 0.4 was found for potatoes, fresh fruits, oatmeal/muesli, cakes/cookies, candy, dairy products, milk, pure fruit juice, cod liver oil, coffee, tea and sugar in coffee/tea (r = 0.40-0.71. A lower, but acceptable, correlation was also found for raw vegetables (r = 0.33. The highest correlation for women was found for consumption of rye bread, oatmeal/muesli, raw vegetables, candy, dairy products, milk, pure fruit juice, cod liver oil, coffee and tea (r = 0.40-0.61. An acceptable correlation was also found for fish topping/salad, fresh fruit, blood/liver sausage, whole-wheat bread, and sugar in coffee/tea (r = 0.28-0.37. Questions on meat/fish meals, cooked vegetables and soft drinks did not show a significant correlation to the reference method. Pearson Chi-Square and Kendall's tau showed similar results, as did the Jonckheere-Terpstra trend test. Conclusion A majority of the questions in the AGES-FFQ had an acceptable correlation and may be used to rank individuals according to their level of intake of several important foods/food groups. The AGES-FFQ on present diet may therefore be used to study the relationship between

  20. Assessing validity of a short food frequency questionnaire on present dietary intake of elderly Icelanders.

    Science.gov (United States)

    Eysteinsdottir, Tinna; Thorsdottir, Inga; Gunnarsdottir, Ingibjorg; Steingrimsdottir, Laufey

    2012-03-13

    Few studies exist on the validity of food frequency questionnaires (FFQs) administered to elderly people. The aim of this study was to assess the validity of a short FFQ on present dietary intake, developed specially for the AGES-Reykjavik Study, which includes 5,764 elderly individuals. Assessing the validity of FFQs is essential before they are used in studies on diet-related disease risk and health outcomes. 128 healthy elderly participants (74 y ± 5.7; 58.6% female) answered the AGES-FFQ, and subsequently filled out a 3-day weighed food record. Validity of the AGES-FFQ was assessed by comparing its answers to the dietary data obtained from the weighed food records, using Spearman's rank correlation, Chi-Square/Kendall's tau, and a Jonckheere-Terpstra test for trend. For men a correlation ≥ 0.4 was found for potatoes, fresh fruits, oatmeal/muesli, cakes/cookies, candy, dairy products, milk, pure fruit juice, cod liver oil, coffee, tea and sugar in coffee/tea (r = 0.40-0.71). A lower, but acceptable, correlation was also found for raw vegetables (r = 0.33). The highest correlation for women was found for consumption of rye bread, oatmeal/muesli, raw vegetables, candy, dairy products, milk, pure fruit juice, cod liver oil, coffee and tea (r = 0.40-0.61). An acceptable correlation was also found for fish topping/salad, fresh fruit, blood/liver sausage, whole-wheat bread, and sugar in coffee/tea (r = 0.28-0.37). Questions on meat/fish meals, cooked vegetables and soft drinks did not show a significant correlation to the reference method. Pearson Chi-Square and Kendall's tau showed similar results, as did the Jonckheere-Terpstra trend test. A majority of the questions in the AGES-FFQ had an acceptable correlation and may be used to rank individuals according to their level of intake of several important foods/food groups. The AGES-FFQ on present diet may therefore be used to study the relationship between consumption of several specific foods/food groups and

  1. Reproducibility and validity of an expanded self-administered semiquantitative food frequency questionnaire among male health professionals.

    Science.gov (United States)

    Rimm, E B; Giovannucci, E L; Stampfer, M J; Colditz, G A; Litin, L B; Willett, W C

    1992-05-15

    The authors assessed the reproducibility and validity of an expanded 131-item semiquantitative food frequency questionnaire used in a prospective study among 51,529 men. The form was administered by mail twice to a sample of 127 participants at a one-year interval. During this interval, men completed two one-week diet records spaced approximately 6 months apart. Mean values for intake of most nutrients assessed by the two methods were similar. Intraclass correlation coefficients for nutrient intakes assessed by questionnaires one year apart ranged from 0.47 for vitamin E without supplements to 0.80 for vitamin C with supplements. Correlation coefficients between the energy-adjusted nutrient intakes measured by diet records and the second questionnaire (which asked about diet during the year encompassing the diet records) ranged from 0.28 for iron without supplements to 0.86 for vitamin C with supplements (mean r = 0.59). These correlations were higher after adjusting for week-to-week variation in diet record intakes (mean r = 0.65). These data indicate that the expanded semiquantitative food frequency questionnaire is reproducible and provides a useful measure of intake for many nutrients over a one-year period.

  2. The e-EPIDEMIOLOGY Mobile Phone App for Dietary Intake Assessment: Comparison with a Food Frequency Questionnaire

    OpenAIRE

    Bejar, Luis Maria; Sharp, Brett Northrop; García-Perea, María Dolores

    2016-01-01

    Background There is a great necessity for new methods of evaluation of dietary intake that overcome the limitations of traditional self-reporting methods. Objective The objective of this study was to develop a new method, based on an app for mobile phones called e-EPIDEMIOLOGY, which was designed to collect individual consumption data for a series of foods/drinks, and to compare this app with a previously validated paper food frequency questionnaire (FFQ). Methods University students >18 year...

  3. Validity and reproducibility of a food frequency questionnaire to assess dietary intake of women living in Mexico City

    Directory of Open Access Journals (Sweden)

    HERNÁNDEZ-AVILA MAURICIO

    1998-01-01

    Full Text Available Objective. To assess the reproducibility and validity of a 116 item semi-quantitative food frequency questionnaire (FFQ, designed to assess the relation between dietary intake and chronic diseases. Material and methods. To test the reproducibility of the FFQ questionnaire, the FFQ was administered twice to 134 women residing in Mexico City at an interval of approximately one year; to assess the validity we compared results obtained by the FFQs with those obtained by four 4-day 24-hour recalls at three month intervals. Validity and reproducibility were evaluated using regression analysis and Pearson and intraclass correlation coefficients of log-e and calorie-adjusted nutrient scores. Results. Mean values for intake of most nutrients assessed by the two food frequency questionnaires were similar. However, means for the 24-hr recall were significantly lower. Intraclass correlation coefficients for nutrient intakes, assessed by questionnaires, administered one year apart, ranged from 0.38 for cholesterol to 0.54 for crude fiber. Correlation coefficients between energy-adjusted nutrient intakes, measured by diet recalls, and the first FFQ ranged from 0.12 for polyunsaturated fatty acids to 0.67 for saturated fatty acids. Regression coefficients between 24-hr recall and FFQ,s were all significant were significant for all nutrients, except for polyunsaturated fat, folic acid, vitamin E and Zinc. Conclusions. These data indicate that this semi-quantitative FFQ is reproducible and provides a useful estimate by which to categorize individuals by level of past nutrient intake. However, its application outside Mexico City or in different age and gender populations will require additional modifications and validation efforts.

  4. The effect of dietary estimates calculated using food frequency questionnaires on micronuclei formation in European pregnant women

    DEFF Research Database (Denmark)

    Vande Loock, Kim; Botsivali, Maria; Zangogianni, Marina

    2014-01-01

    The use of biomarkers of early genetic effects, predictive for cancer, such as micronuclei (MN) in lymphocytes, may help to investigate the association between diet and cancer. We hypothesised that the presence of mutagens in the diet may increase MN formation. A 'pooled' standardised analysis......) and the cytokinesis blocked proliferation index using a semi-automated image analysis system. Food frequency questionnaires (FFQs) were used to estimate intake of fatty acids and a broad range of immunotoxic and genotoxic/carcinogenic compounds through the diet. Pooled difference based on delivery type revealed...

  5. Development of a semi-quantitative food frequency questionnaire for middle-aged inhabitants in the Chaoshan area, China

    Institute of Scientific and Technical Information of China (English)

    Feng-Yan Song; Xin-En Huang; Tajima Kazuo; Takezaki Toshiro; Ke Li; Ping Yu; Xu-Kai Lin; He-Lin Yang; Xiao-Ling Deng; Yu-Qi Zhang; Lai-Wen Lv

    2005-01-01

    AIM: This paper aims to develop a data-based semiquantitative food frequency questionnaire (SQFFQ) covering both urban and rural areas in the Chaoshan region of Guangdong Province, China, for the investigation of relationships between food intake and lifestyle-related diseases among middle-aged Chinese.METHODS: We recruited 417 subjects from the general population and performed an assessment of the diet, using a 3-d weighed dietary record survey. We employed contribution analysis (CA) and multiple regression analysis (MRA) to select food items covering up to a 90% contribution and a 0.90 R2, respectively. The total number of food items consumed was 523 (443 in the urban and 417 in the rural population) and the intake of 29 nutrients was calculated according to the actual consumption by foods/recipes.RESULTS: The CA selected 233, 194, and 183 foods/recipes for the combined, the urban and the rural areas, respectively,and then 196, 157, and 160 were chosen by the MRA. Finally,125 foods/recipes were selected for the final questionnaire.The frequencies were classified into eight categories and standard portion sizes were also calculated.CONCLUSION: For adoption of the area-specific SQFFQ,validity and reproducibility tests are now planned to determine how the combined SQFFQ performs in actual assessment of disease risk and benefit.

  6. A Multidimensional Approach to Social Support: the Questionnaire on the Frequency of and Satisfaction with Social Support (QFSSS

    Directory of Open Access Journals (Sweden)

    Miguel A. García-Martín

    Full Text Available The Questionnaire on the Frequency of and Satisfaction with Social Support (QFSSS was designed to assess the frequency of and the degree of satisfaction with perceived social support received from different sources in relation to three types of support: emotional, informational, and instrumental. This study tested the reliability of the questionnaire scores and its criterion and structural validity. The data were drawn from survey interviews of 2042 Spanish people. The results show high internal consistency (values of Cronbach's alpha ranged from .763 to .952. The correlational analysis showed significant positive associations between QFSSS scores and measures of subjective well-being and perceived social support, as well as significant negative associations with measures of loneliness (values of Pearson's r correlation ranged from .11 to .97. Confirmatory factor analysis using structural equation modelling verified an internal 4-factor structure that corresponds to the sources of support analysed: partner, family, friends, and community (values ranged from .93 to .95 for the Goodness of Fit Index (GFI; from .95 to .98 for the Comparative Fit Index (CFI; and from .10 to .07 for the Root Mean Square Error of Approximation (RMSEA. These results confirm the validity of the QFSSS as a versatile tool which is suitable for the multidimensional assessment of social support.

  7. Substance and Alcohol use in Young Adults in Turkey as Indicated by the CAGE Questionnaire and Drinking Frequency.

    Science.gov (United States)

    Demirbaş, Hatice

    2015-03-01

    The purpose of this study was to determine drinking problems and to analyze the socio-demographic factors associated with problematic alcohol use in young adults. The study included 262 students who were surveyed for substance use problems in a postgraduate program using the Cut down, Annoyed, Guilty, Eye opener (CAGE) Questionnaire. The relationships between socio-demographic variables and alcohol use were assessed using both univariate and multivariate analyses. Of the whole sample, 56.11% reported that they had tried drinking alcohol and 1.91% had tried cannabis. The prevalence of problematic alcohol use was 15.3% and 29.7% according to CAGE1+ and past-year drinking frequency, respectively. Alcohol use by mothers was an important differentiating factor for alcohol use by their daughters. Graduating from a university located in the Eastern/Southeastern Anatolia regions, graduating from a private high school, and having average academic performance levels were determinants of problematic alcohol use according to CAGE1+ and frequency of drinking. This study suggests there is need for early intervention to prevent exposure to the risk factors for problematic alcohol use in young adults, emphasizing that probable presence of an alcohol use disorder and high frequency of drinking are related to socio-demographic factors (high school type, geographical location of the university, and family structure).

  8. Reproducibility and relative validity of food group intake in a food frequency questionnaire developed for Nepalese diet.

    Science.gov (United States)

    Shrestha, Archana; Koju, Rajendra Prasad; Beresford, Shirley A A; Chan, Kwun Chuen Gary; Connell, Frederik A; Karmacharya, Biraj Man; Shrestha, Pramita; Fitzpatrick, Annette L

    2017-08-01

    We developed a food frequency questionnaire (FFQ) designed to measure the dietary practices of adult Nepalese. The present study examined the validity and reproducibility of the FFQ. To evaluate the reproducibility of the FFQ, 116 subjects completed two 115-item FFQ across a four-month interval. Six 24-h dietary recalls were collected (1 each month) to assess the validity of the FFQ. Seven major food groups and 23 subgroups were clustered from the FFQ based on macronutrient composition. Spearman correlation coefficients evaluating reproducibility for all food groups were greater than 0.5, with the exceptions of oil. The correlations varied from 0.41 (oil) to 0.81 (vegetables). All crude spearman coefficients for validity were greater than 0.5 except for dairy products, pizzas/pastas and sausage/burgers. The FFQ was found to be reliable and valid for ranking the intake of food groups for Nepalese dietary intake.

  9. Evaluation of the Relative Validity of the Short Diet Questionnaire for Assessing Usual Consumption Frequencies of Selected Nutrients and Foods.

    Science.gov (United States)

    Shatenstein, Bryna; Payette, Hélène

    2015-08-04

    A 36-item Short Diet Questionnaire (SDQ) was developed to assess usual consumption frequencies of foods providing fats, fibre, calcium, vitamin D, in addition to fruits and vegetables. It was pretested among 30 community-dwelling participants from the Québec Longitudinal Study on Nutrition and Successful Aging, "NuAge" (n = 1793, 52.4% women), recruited in three age groups (70 ± 2 years; 75 ± 2 years; 80 ± 2 years). Following revision, the SDQ was administered to 527 NuAge participants (55% female), distributed among the three age groups, both sexes and languages (French, English) prior to the second of three non-consecutive 24 h diet recalls (24HR) and validated relative to the mean of three 24HR. Full data were available for 396 participants. Most SDQ nutrients and fruit and vegetable servings were lower than 24HR estimates (p nutrients and foods. Further testing is needed in a broader age range.

  10. Relative validity and reproducibility of a food frequency questionnaire to assess dietary fiber intake in Danish adults

    DEFF Research Database (Denmark)

    Vuholm, Stine; Lorenzen, Janne Kunchel; Kristensen, Mette Bredal

    2014-01-01

    Background: Differences in habitual dietary fiber intake may modify effects of dietary fiber interventions, thus measurement of habitual dietary fiber intake is relevant to apply in intervention studies on fiber-rich foods, and food frequency questionnaire (FFQ) is a commonly used method. Rye bread...... is the major contributor of dietary fiber in the Danish population, and a nation-specific FFQ is therefore needed. Objective: The aim of this study was to assess the relative validity and reproducibility of a self-administered quantitative FFQ designed to assess total dietary fiber intake among Danish adults...... months later. Results: Estimates of mean dietary fiber intake were 24.999.8 and 28.199.4 g/day when applying the FFQ and DR, respectively, where FFQ estimates were 12% lower (pB0.001). Pearson’s correlation coefficient between the estimated dietary fiber intake of the two methods was r0.63 (pB0...

  11. Validity and reproducibility of a food frequency questionnaire (FFQ) for dietary assessment in Malay adolescents in Malaysia.

    Science.gov (United States)

    Nurul-Fadhilah, Abdullah; Teo, Pey Sze; Foo, Leng Huat

    2012-01-01

    Food frequency questionnaire (FFQ) must be tailored to the target populations because dietary habits vary within the populations due to differences in cultural and lifestyles practices. Limited information is available to assess the validity of FFQ used among Malaysian adolescents. To construct the validity and reproducibility of a newly developed FFQ in assessing habitual nutrients intake over the past year of 170 Malay adolescent boys and girls in Kelantan, Malaysia. The FFQ that consisted of 124 food items was assessed, whereas three days of 24-hours dietary recalls (DR) was administered as the standard criteria method. Estimated mean intake for most nutrients assessed by the FFQ were higher as compared to the three DRs (pMalaysia.

  12. Evaluation of the Relative Validity of the Short Diet Questionnaire for Assessing Usual Consumption Frequencies of Selected Nutrients and Foods

    Directory of Open Access Journals (Sweden)

    Bryna Shatenstein

    2015-08-01

    Full Text Available A 36-item Short Diet Questionnaire (SDQ was developed to assess usual consumption frequencies of foods providing fats, fibre, calcium, vitamin D, in addition to fruits and vegetables. It was pretested among 30 community-dwelling participants from the Québec Longitudinal Study on Nutrition and Successful Aging, “NuAge” (n = 1793, 52.4% women, recruited in three age groups (70 ± 2 years; 75 ± 2 years; 80 ± 2 years. Following revision, the SDQ was administered to 527 NuAge participants (55% female, distributed among the three age groups, both sexes and languages (French, English prior to the second of three non-consecutive 24 h diet recalls (24HR and validated relative to the mean of three 24HR. Full data were available for 396 participants. Most SDQ nutrients and fruit and vegetable servings were lower than 24HR estimates (p < 0.05 except calcium, vitamin D, and saturated and trans fats. Spearman correlations between the SDQ and 24HR were modest and significant (p < 0.01, ranging from 0.19 (cholesterol to 0.45 (fruits and vegetables. Cross-classification into quartiles showed 33% of items were jointly classified into identical quartiles of the distribution, 73% into identical and contiguous quartiles, and only 7% were frankly misclassified. The SDQ is a reasonably accurate, rapid approach for ranking usual frequencies of selected nutrients and foods. Further testing is needed in a broader age range.

  13. Intakes of culinary herbs and spices from a food frequency questionnaire evaluated against 28-days estimated records

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    Blomhoff Rune

    2011-05-01

    Full Text Available Abstract Background Worldwide, herbs and spices are much used food flavourings. However, little data exist regarding actual dietary intake of culinary herbs and spices. We developed a food frequency questionnaire (FFQ for the assessment of habitual diet the preceding year, with focus on phytochemical rich food, including herbs and spices. The aim of the present study was to evaluate the intakes of herbs and spices from the FFQ with estimates of intake from another dietary assessment method. Thus we compared the intake estimates from the FFQ with 28 days of estimated records of herb and spice consumption as a reference method. Methods The evaluation study was conducted among 146 free living adults, who filled in the FFQ and 2-4 weeks later carried out 28 days recording of herb and spice consumption. The FFQ included a section with questions about 27 individual culinary herbs and spices, while the records were open ended records for recording of herbs and spice consumption exclusively. Results Our study showed that the FFQ obtained slightly higher estimates of total intake of herbs and spices than the total intake assessed by the Herbs and Spice Records (HSR. The correlation between the two assessment methods with regard to total intake was good (r = 0.5, and the cross-classification suggests that the FFQ may be used to classify subjects according to total herb and spice intake. For the 8 most frequently consumed individual herbs and spices, the FFQ obtained good estimates of median frequency of intake for 2 herbs/spices, while good estimates of portion sizes were obtained for 4 out of 8 herbs/spices. Conclusions Our results suggested that the FFQ was able to give good estimates of frequency of intake and portion sizes on group level for several of the most frequently used herbs and spices. The FFQ was only able to fairly rank subjects according to frequency of intake of the 8 most frequently consumed herbs and spices. Other studies are warranted

  14. Use of a food frequency questionnaire to assess diets of Jamaican adults: validation and correlation with biomarkers

    Directory of Open Access Journals (Sweden)

    Younger Novie M

    2011-04-01

    Full Text Available Abstract Background Assessment of habitual diet is important in investigations of diet-disease relationships. Many epidemiological studies use the food frequency questionnaire (FFQ to evaluate dietary intakes but few studies validate the instrument against biological markers. The aim of this study was to assess the validity and reproducibility of a previously validated 70-item food frequency questionnaire (FFQ that was expanded to 120-items to assess diet - cancer relations. Methods Relative validity of the FFQ was assessed against twelve 24-hour recalls administered over 12 months in 70 subjects. The FFQ was repeated after one year (FFQ2 to assess reproducibility. The validity of the FFQ was evaluated by comparing nutrient and food group intakes from 24-hour recalls with the first and second FFQ. In addition, FFQ validity for cholesterol and folate were determined through correlation with biomarkers (serum cholesterol, serum folate and whole blood folate in 159 control subjects participating in a case-control prostate cancer study. Results Compared to recalls the FFQ tended to overestimate energy and carbohydrate intakes but gave no differences in intake for protein and fat. Quartile agreement for energy-adjusted nutrient intakes between FFQ2 and recalls ranged from 31.8% - 77.3% for the lowest quartile and 20.8% - 81.0% in the highest quartile. Gross misclassification of nutrients was low with the exceptions of protein, vitamin E and retinol and weighted kappa values ranged from 0.33 to 0.64 for other nutrients. Validity correlations for energy-adjusted nutrients (excluding retinol were moderate to high (0.38- 0.86. Correlation coefficients between multiple recalls and FFQ1 ranged from 0.27 (fruits to 0.55 (red meat; the second FFQ gave somewhat higher coefficients (0.30 to 0.61. Reproducibility correlations for the nutrients ranged from 0.50 to 0.84. Calibration of the FFQ with biochemical markers showed modest correlations with serum

  15. Validation of a food frequency questionnaire measurement of dietary acrylamide intake using hemoglobin adducts of acrylamide and glycidamide

    Science.gov (United States)

    Wilson, Kathryn M.; Vesper, Hubert W.; Tocco, Paula; Sampson, Laura; Rosén, Johan; Hellenäs, Karl-Erik; Törnqvist, Margareta; Willett, Walter C.

    2011-01-01

    Objective Acrylamide, a probable human carcinogen, is formed during high-heat cooking of many common foods. The validity of food frequency questionnaire (FFQ) measures of acrylamide intake has not been established. We assessed the validity of acrylamide intake calculated from an FFQ using a biomarker of acrylamide exposure. Methods We calculated acrylamide intake from an FFQ in the Nurses' Health Study II. We measured hemoglobin adducts of acrylamide and its metabolite, glycidamide, in a random sample of 296 women. Correlation and regression analyses were used to assess the relationship between acrylamide intake and adducts. Results The correlation between acrylamide intake and the sum of acrylamide and glycidamide adducts was 0.31 (95% CI: 0.20 – 0.41), adjusted for laboratory batch, energy intake, and age. Further adjustment for BMI, alcohol intake, and correction for random within-person measurement error in adducts gave a correlation of 0.34 (CI: 0.23 – 0.45). The intraclass correlation coefficient for the sum of adducts was 0.77 in blood samples collected 1 to 3 years apart in a subset of 45 women. Intake of several foods significantly predicted adducts in multiple regression. Conclusions Acrylamide intake and hemoglobin adducts of acrylamide and glycidamide were moderately correlated. Within-person consistency in adducts was high over time. PMID:18855107

  16. Reproducibility and Relative Validity of a Short Food Frequency Questionnaire in 9–10 Year-Old Children

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    Pouya Saeedi

    2016-05-01

    Full Text Available The aim of this study was to assess the reproducibility and validity of a non-quantitative 28-item food frequency questionnaire (FFQ. Children aged 9–10 years (n = 50 from three schools in Dunedin, New Zealand, completed the FFQ twice and a four-day estimated food diary (4DEFD over a two-week period. Intraclass correlation coefficients (ICC and Spearman’s correlation coefficients (SCC were used to determine reproducibility and validity of the FFQ, respectively. Weekly intakes were estimated for each food item and aggregated into 23 food items/groups. More than half of the food items/groups (52.2% had an ICC ≥0.5. The median SCC between FFQ administrations was 0.66 (ranging from 0.40 for processed meat to 0.82 for sweets and non-dairy drinks. Cross-classification analysis between the first FFQ and 4DEFD for ranking participants into thirds showed that breakfast cereals had the highest agreement (54.0% and pasta the lowest (34.0%. In validity analyses, 70% of food items/groups had a SCC ≥0.3. Results indicate that the FFQ is a useful tool for ranking children according to food items/groups intake. The low respondent burden and relative simplicity of the FFQ makes it suitable for use in large cohort studies of 9–10 year-old children in New Zealand.

  17. Validity and reliability of a dish-based, semi-quantitative food frequency questionnaire for Korean diet and cancer research.

    Science.gov (United States)

    Park, Min Kyung; Noh, Hwa Young; Song, Na Yeun; Paik, Hee Young; Park, Sohee; Joung, Hyojee; Song, Won O; Kim, Jeongseon

    2012-01-01

    This study evaluated the validity and reliability of applying a newly developed dish-based, semi-quantitative food frequency questionnaire (FFQ) for Korean diet and cancer research. The subjects in the present study were 288 Korean adults over 30 years of age who had completed two FFQs and four 3-day diet records (DRs) from May 2008 to February 2009. Student's t-tests, Chi-square tests, and Spearman's rank correlation coefficients were used to estimate and compare intakes from different dietary assessment tools. Agreement in quintiles was calculated to validate agreement between the results of the second FFQ (FFQ-2) conducted in February 2009 and the DRs. Median Spearman's correlation coefficients between the intake of nutrients and foods assessed by the FFQ-1 and FFQ-2 were 0.59 and 0.57, respectively, and the coefficients between the intake of nutrients and foods assessed by the FFQ-2 and the DRs were 0.31 and 0.29, respectively. The quintile classifications of same or adjacent quintile for intake of nutrients and foods were 64% and 65%, respectively. Misclassification into opposite quintiles occurred in less than 5% for all dietary factors. Thus this newly-developed, Korean dish-based FFQ demonstrated moderate correspondence with the four 3-day DRs. Its reliability and validity are comparable to those reported in other studies.

  18. Racial Differences in Misclassification of Healthy Eating Based on Food Frequency Questionnaire and 24-Hour Dietary Recalls.

    Science.gov (United States)

    Olendzki, B; Procter-Gray, E; Magee, M F; Youssef, G; Kane, K; Churchill, L; Ockene, J; Li, W

    2017-01-01

    To examine the agreement in nutrient intake and alternate healthy eating indices (AHEI) between a self-administered Food Frequency Questionnaire (FFQ) and 24-hour recall (24HR) measurements of diet by race, among urban older women. Cross-sectional observational study. Urban neighborhoods in Washington, DC, USA. Community-dwelling White and Black women aged 65 and older. In 2014 and 2015, 49 White and 44 Black older women were queried on diet using both FFQ and 24-hour recalls. The correlation coefficients of 55 nutrient intake measures and agreements on healthy eating classification between the two instruments were compared overall and by race. The mean correlation coefficient (rho) was 0.46 for Whites and 0.23 for Blacks. For 47 measures, rho was lower for Blacks. Whites had a strong correlation of ≥0.5 for 28 items, while Blacks had strong correlations for only 3 items. Based on FFQ, the mean (SD) of AHEI were 54.0 (10.3) for Whites and 45.9 (8.8) for Blacks (peating unhealthy based on the 24HR, versus 2.6% and 0% based on the FFQ. The FFQ has limited ability to accurately assess nutrient intake among older Black women, and tends to underestimate racial differences in healthy eating. The FFQ should be further improved for use in racial disparities research of healthy eating in older age, using a larger sample of older women with racial and geographic diversities.

  19. Dietary quality varies according to data collection instrument: a comparison between a food frequency questionnaire and 24-hour recall

    Directory of Open Access Journals (Sweden)

    Paulo Rogério Melo Rodrigues

    2016-01-01

    Full Text Available Abstract The objective of this study was to assess the agreement between the Brazilian Healthy Eating Index – Revised (BHEI-R, estimated by a food frequency questionnaire (FFQ and multiple 24-hour recalls (24h-R. The Wilcoxon paired test, partial correlations (PC, intraclass correlation coefficient (ICC, and Bland-Altman method were used. The total BHEI-R scores and its components (“total fruits”, “whole fruits”, “total vegetables”, “integral cereals”, “saturated fat”, “sodium”, and “energy intake derived from solid fat, added sugar, and alcoholic beverages” were statistically different, with the ICC and PC indicating poor concordance and correlation. The mean concordance estimated for the total BHEI-R and its components varied from 68% for “integral cereals” to 147% for “whole fruits”. The suitable concordance limits were violated for most of the components of the BHEI-R. Poor concordance was observed between the BHEI-R estimated by the FFQ and by multiple 24h-R, which indicated a strong reliability of the BHEI-R on the instrument used to collect information on food consumption.

  20. Validity of food frequency questionnaire estimated intakes of folate and other B vitamins in a region without folic acid fortification.

    Science.gov (United States)

    Johansson, I; Van Guelpen, B; Hultdin, J; Johansson, M; Hallmans, G; Stattin, P

    2010-08-01

    B vitamins have been implicated in major chronic diseases but results have been inconsistent. This study evaluated the accuracy of dietary intakes of folate, vitamin B12, riboflavin and vitamin B6 as measured by the Northern Sweden Food Frequency Questionnaire (FFQ) against repeated 24-h recalls (24HR) and plasma levels, taking into consideration the MTHFR 677C>T polymorphism. B vitamin intakes assessed by a semi-quantitative FFQ designed to measure the intake over the previous year were compared with those from 10 24HR, as well as to plasma levels of folate and vitamin B12, in randomly selected men (n=96) and women (n=99) aged 30-60 years. FFQ-based B-vitamin intakes were also compared with plasma levels of B-vitamins and with MTHFR 677C4T genotype in 878 men, aged 40-61 years. Intakes of vitamins B12 and riboflavin were similar, whereas folate and B6 intakes were 16-27% higher, as estimated by FFQ versus 24HR. Spearman correlation coefficients between the two methods ranged from 0.31 to 0.63 (all Pvitamin B12. Intakes estimated by FFQ were correlated with plasma levels, but coefficients were lower (range: 0.13-0.33), particularly for vitamin B12 in men (0.15-0.18). Folate intake was not correlated with plasma levels in subjects with the MTHFR 677 T/T genotype. The validity of the Northern Sweden FFQ for assessing B vitamin intake is similar to that of many other FFQs used in large-scale studies. The FFQ is suitable for ranking individuals by intake of folate, riboflavin, vitamin B6 and to a lesser extent vitamin B12.

  1. Validity and Reliability of a Self-administered Food Frequency Questionnaire to Assess Vitamin K Intake in Korean Adults.

    Science.gov (United States)

    Kim, Eunsu; Kim, Misung; Sohn, Cheongmin

    2016-07-01

    This study was conducted to validate a food frequency questionnaire (FFQ) to assess vitamin K intake in clinical and research settings based on data from the Fifth Korea National Health and Nutrition Examination Survey (KNHANES V). We collected a subset of data on informative food items using the 24-hour recall method from adults aged 19 to 64 years from KNHANES V. The cumulative percent contribution and cumulative multiple regression coefficients for vitamin K intake from each food were computed. Twenty-five foods items were selected for the FFQ to assess vitamin K intake. The FFQ was validated against intakes derived from a 5-day food record (5DR) (n = 48). To assess the reliability of the FFQ, participants completed the self-administered FFQ (FFQ1) and a second FFQ (FFQ2) after a 6-month period (n = 54). Data were analyzed using Pearson's correlation coefficients, the cross-classification method, and Bland-Altman plots. Mean intakes were similar for vitamin K between the FFQ and dietary records, with significant correlations observed (r = 0.652), and cross-classification analyses demonstrated no major misclassification of participants into intake quartiles. Bland-Altman plots showed no serious systematic bias between the administrations of the two dietary assessment methods over the range of mean intakes. FFQ reliability was high, with a Pearson's correlation coefficient of 0.560. This pilot study shows promising validation and reliability evidence for the use of this FFQ, which is focused on vitamin K intake in adults, as an efficient screening tool in clinical and research settings.

  2. Validation of a food frequency questionnaire for Japanese pregnant women with and without nausea and vomiting in early pregnancy.

    Science.gov (United States)

    Ogawa, Kohei; Jwa, Seung-Chik; Kobayashi, Minatsu; Morisaki, Naho; Sago, Haruhiko; Fujiwara, Takeo

    2017-05-01

    No previous study has shown the validity of a food frequency questionnaire (FFQ) in early pregnancy with consideration of nausea and vomiting during pregnancy (NVP). The aim of this study was to evaluate the validity of a FFQ in early pregnancy for Japanese pregnant women. We included 188 women before 15 weeks of gestation and compared estimated nutrient intake and food group intake based on a modified FFQ with that based on 3-day dietary records (DRs). Spearman's rank correlation coefficients, adjusting energy intake and attenuating within-person error, were calculated. Subgroup analysis for those with and without NVP was conducted. We also examined the degree of appropriate classification across categories between FFQ and DRs through division of consumption of nutrients and food groups into quintiles. Crude Spearman's correlation coefficients of nutrients ranged from 0.098 (sodium) to 0.401 (vitamin C), and all of the 36 nutrients were statistically significant. In 27 food groups, correlation coefficients ranged from -0.015 (alcohol) to 0.572 (yogurt), and 81% were statistically significant. In subgroup analysis, correlation coefficients in 89% of nutrients and 70% of food groups in women with NVP and 97% of nutrients and 74% of food groups in women without NVP were statistically significant. On average, 63.7% of nutrients and 60.4% of food groups were classified into same or adjacent quintiles according to the FFQ and DRs. The FFQ is a useful instrument, regardless of NVP, for assessing the diet of women in early pregnancy in Japan. Copyright © 2016 The Authors. Production and hosting by Elsevier B.V. All rights reserved.

  3. Relative Validity and Reproducibility of a Food-Frequency Questionnaire for Estimating Food Intakes among Flemish Preschoolers

    Directory of Open Access Journals (Sweden)

    Inge Huybrechts

    2009-01-01

    Full Text Available The aims of this study were to assess the relative validity and reproducibility of a semi-quantitative food-frequency questionnaire (FFQ applied in a large region-wide survey among 2.5-6.5 year-old children for estimating food group intakes. Parents/guardians were used as a proxy. Estimated diet records (3d were used as reference method and reproducibility was measured by repeated FFQ administrations five weeks apart. In total 650 children were included in the validity analyses and 124 in the reproducibility analyses. Comparing median FFQ1 to FFQ2 intakes, almost all evaluated food groups showed median differences within a range of ± 15%. However, for median vegetables, fruit and cheese intake, FFQ1 was > 20% higher than FFQ2. For most foods a moderate correlation (0.5-0.7 was obtained between FFQ1 and FFQ2. For cheese, sugared drinks and fruit juice intakes correlations were even > 0.7. For median differences between the 3d EDR and the FFQ, six food groups (potatoes & grains; vegetables Fruit; cheese; meat, game, poultry and fish; and sugared drinks gave a difference > 20%. The largest corrected correlations (>0.6 were found for the intake of potatoes and grains, fruit, milk products, cheese, sugared drinks, and fruit juice, while the lowest correlations (<0.4 for bread and meat products. The proportion of subjects classified within one quartile (in the same/adjacent category by FFQ and EDR ranged from 67% (for meat products to 88% (for fruit juice. Extreme misclassification into the opposite quartiles was for all food groups < 10%. The results indicate that our newly developed FFQ gives reproducible estimates of food group intake. Overall, moderate levels of relative validity were observed for estimates of food group intake.

  4. Development, validity and reproducibility of a food frequency questionnaire in pregnancy for the Universiti Sains Malaysia birth cohort study.

    Science.gov (United States)

    Loy, S L; Marhazlina, M; Nor, Azwany Y; Hamid, Jan J M

    2011-04-01

    This study aimed to develop and examine the validity and reproducibility of a semi-quantitative food frequency questionnaire (FFQ) among Malay pregnant women in Kelantan, Malaysia. A total of 177 Malay pregnant women participated in the validation study while 85 of them participated in the reproducibility study which was carried out in the antenatal clinic of Universiti Sains Malaysia Hospital. The newly developed FFQ was validated against two 24-hour dietary recalls (DR). The FFQ was repeated 20 to 28 days apart. Results showed that the FFQ moderately over-estimated the nutrient and food intakes compared to the DR. Spearman correlation coefficients for nutrients ranged from 0.24 (fat) to 0.61 (calcium) and for foods, ranged from 0.13 (organ meats, onion and garlic) to 0.57 (malt drink). For nutrients, 72 to 85% of women were classified into the correct quartiles from the FFQ and the DR while for foods, 67 to 85% of women were classified correctly. Bland-Altman plot showed relatively good agreement between these two dietary methods. The intra-class correlation (ICC) was used to estimate reproducibility. It ranged from 0.75 (vitamin C) to 0.94 (phosphorus) for nutrients while it ranged from 0.73 (confectionary) to 0.96 (coffee) for foods. On average, at least 90% of pregnant women were correctly classified into the quartiles for nutrients and foods from the two sets of the FFQ. The FFQ presented acceptable reproducibility and appears to be a valid tool for categorising pregnant women according to dietary intake.

  5. Development and validation of a Food Frequency Questionnaire (FFQ) for assessing sugar consumption among adults in Klang Valley, Malaysia.

    Science.gov (United States)

    Shanita, Nik S; Norimah, A K; Abu Hanifah, S

    2012-12-01

    The aim of this study was to develop and validate a semiquantitative food frequency questionnaire (FFQ) for assessing habitual added sugar consumption of adults in the Klang Valley. In the development phase, a 24-hour dietary recall (24-hr DR) was used to determine food items to be included into the FFQ among adults from three major ethnicities (n = 51). In the validation phase, the FFQ was further validated against a reference method which was a multiple-pass 24-hr DR among 125 adults in Klang Valley. The response rate for the latter phase was 96.1%. The semi-quantitative FFQ consisting of 64 food items was categorised into 10 food groups. The mean added sugar intake determined by the reference method was 44.2 +/- 20.2 g/day while that from the FFQ was 49.4 +/- 21.4 g/day. The difference in mean intake between the two methods was 5.2 g (95% CI = 2.6-7.9; SD = 14.9, p food groups ranged between 0.11 (cake and related foods) to 0.61 (self-prepared drinks), with most groups correlating significantly (p < 0.05). Cross-classification of subjects into quintiles of intake showed 47.2% of the subjects correctly classifying into the same quintile, 34.4% into adjacent quintiles while none were grossly misclassified. The Bland-Altman plot was concentrated in the y-axis range (-24.14 g to 34.8 g) with a mean of 5.22 g. This semi-quantitative FFQ provides a validated tool for estimating habitual intake of added sugar in the adult population of the Klang Valley.

  6. Relative validity and reproducibility of a food frequency questionnaire to assess dietary fiber intake in Danish adults

    Science.gov (United States)

    Vuholm, Stine; Lorenzen, Janne K.; Kristensen, Mette

    2014-01-01

    Background Differences in habitual dietary fiber intake may modify effects of dietary fiber interventions, thus measurement of habitual dietary fiber intake is relevant to apply in intervention studies on fiber-rich foods, and food frequency questionnaire (FFQ) is a commonly used method. Rye bread is the major contributor of dietary fiber in the Danish population, and a nation-specific FFQ is therefore needed. Objective The aim of this study was to assess the relative validity and reproducibility of a self-administered quantitative FFQ designed to assess total dietary fiber intake among Danish adults. Design In order to assess the relative validity of the FFQ, a total of 125 participants completed both a 7-day weighed dietary recording (DR) and an FFQ consisting of 60 questions. To evaluate the reproducibility of the FFQ, a sub-group of 12 participants subsequently completed an FFQ approximately 6 months later. Results Estimates of mean dietary fiber intake were 24.9±9.8 and 28.1±9.4 g/day when applying the FFQ and DR, respectively, where FFQ estimates were ~12% lower (pdietary fiber intake of the two methods was r=0.63 (pdietary intake of first and second FFQ were very similar (22.2±4.0 and 23.3±4.1 g/day, respectively, p=0.42) and showed a correlation of r=0.95 (95% CI 0.83–0.99). Conclusion The developed FFQ showed moderate underestimation of dietary fiber intake (g/day), adequate ranking of subjects according to their dietary fiber intake, and good reproducibility. The FFQ is therefore believed to be a valuable tool for epidemiology and screening in human interventions, where intake of dietary fibers is of specific interest. PMID:25490961

  7. Omega-3 fatty acids status in human subjects estimated using a food frequency questionnaire and plasma phospholipids levels

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    Garneau Véronique

    2012-07-01

    Full Text Available Abstract Background Intakes of omega-3 (n-3 fatty acids (FA are associated with several health benefits. The aim of this study was to verify whether intakes of n-3 FA estimated from a food frequency questionnaire (FFQ correlate with n-3 FA levels measured in plasma phospholipids (PL. Methods The study sample consisted of 200 French-Canadians men and women aged between 18 to 55 years. Dietary data were collected using a validated FFQ. Fasting blood samples were collected and the plasma PL FA profile was measured by gas chromatography. Results Low intakes of n-3 long-chain FA together with low percentages of n-3 long-chain FA in plasma PL were found in French-Canadian population. Daily intakes of eicosapentaenoic acid (EPA, docosapentaenoic acid (DPA and docosahexaenoic acid (DHA were similar between men and women. Yet, alpha-linolenic acid (ALA and total n-3 FA intakes were significantly higher in men compared to women (ALA: 2.28 g and 1.69 g, p n-3 FA: 2.57 g and 1.99 g, p n-3 FA (men: r = 0.47, p  Conclusion Estimated n-3 long-chain FA intake among this young and well-educated French-Canadian population is lower than the recommendations. Further, FFQ data is comparable to plasma PL results to estimate DHA and total n-3 FA status in healthy individuals as well as to evaluate the EPA and DPA status in women. Overall, this FFQ could be used as a simple, low-cost tool in future studies to rank n-3 FA status of individuals.

  8. Validation of a food frequency questionnaire for Japanese pregnant women with and without nausea and vomiting in early pregnancy

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    Kohei Ogawa

    2017-05-01

    Full Text Available Background: No previous study has shown the validity of a food frequency questionnaire (FFQ in early pregnancy with consideration of nausea and vomiting during pregnancy (NVP. The aim of this study was to evaluate the validity of a FFQ in early pregnancy for Japanese pregnant women. Method: We included 188 women before 15 weeks of gestation and compared estimated nutrient intake and food group intake based on a modified FFQ with that based on 3-day dietary records (DRs. Spearman's rank correlation coefficients, adjusting energy intake and attenuating within-person error, were calculated. Subgroup analysis for those with and without NVP was conducted. We also examined the degree of appropriate classification across categories between FFQ and DRs through division of consumption of nutrients and food groups into quintiles. Results: Crude Spearman's correlation coefficients of nutrients ranged from 0.098 (sodium to 0.401 (vitamin C, and all of the 36 nutrients were statistically significant. In 27 food groups, correlation coefficients ranged from −0.015 (alcohol to 0.572 (yogurt, and 81% were statistically significant. In subgroup analysis, correlation coefficients in 89% of nutrients and 70% of food groups in women with NVP and 97% of nutrients and 74% of food groups in women without NVP were statistically significant. On average, 63.7% of nutrients and 60.4% of food groups were classified into same or adjacent quintiles according to the FFQ and DRs. Conclusions: The FFQ is a useful instrument, regardless of NVP, for assessing the diet of women in early pregnancy in Japan.

  9. Using a correction factor to correct for overreporting in a food-frequency questionnaire does not improve biomarker-assessed validity of estimates for fruit and vegetable consumption

    NARCIS (Netherlands)

    Bogers, R.P.; Dagnelie, P.C.; Westerterp, K.R.; Kester, A.D.M.; Klaveren, van J.D.; Bast, A.; Brandt, van den P.A.

    2003-01-01

    To correct for overreporting of fruit and vegetable (FV) consumption in a food-frequency questionnaire, summary questions about consumption of main FV groups are often used to calculate correction factors. This study compared the ability to rank people according to their FV intake of those summary q

  10. The relationship between interviewer-respondent race match and reporting of energy intake using food frequency questionnaires in the rural South United States

    Science.gov (United States)

    The purpose of the observational study was to determine whether interviewer race influences food frequency questionnaire (FFQ) reporting accuracy in a Deep South, largely African American cohort. A secondary analysis was conducted to investigate the influence of interviewer race on energy reporting ...

  11. Reproducibility and relative validity of a food frequency questionnaire developed for female adolescents in Suihua, North China.

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    Wei Xia

    Full Text Available BACKGROUND: This study aims to evaluate the reproducibility and validity of a food frequency questionnaire (FFQ developed for female adolescents in the Suihua area of North China. The FFQ was evaluated against the average of 24-hour dietary recalls (24-HRs. METHODOLOGY/PRINCIPAL FINDINGS: A total of 168 female adolescents aged 12 to 18 completed nine three consecutive 24-HRs (one three consecutive 24 HRs per month and two FFQs over nine months. The reproducibility of the FFQ was estimated using intraclass correlation coefficients (ICCs, and its relative validity was assessed by comparing it with the 24-HRs. The mean values of the 24-HRs were lower than those of the FFQs, except for protein (in FFQ1 and iron (in FFQ2. The ICCs for all nutrients and food groups in FFQ1 and FFQ2 were moderately correlated (0.4-0.8. However, all the ICCs decreased after adjusting for energy. The weighted κ statistic showed moderate agreement (0.40-0.6 for all nutrients and food groups, except for niacin and calcium, which showed poor agreement (0.35. The relative validity results indicate that the crude Spearman's correlation coefficients of FFQ1 and the 24-HRs ranged from 0.41 (for Vitamin C to 0.65 (for fruit. The coefficients of each nutrient and food group in FFQ2 and the 24-HRs were higher than those in FFQ1 and the 24-HRs, indicating good correlation. Although all energy-adjusted Spearman's correlation coefficients were lower than the crude coefficients, de-attenuation to correct for intra-individual variability improved the correlation coefficients. The weighted κ coefficients of nutrients and food groups ranged from 0.32 for beans to 0.52 for riboflavin in FFQ1 and the 24-HRs, and 0.32 for Vitamin C to 0.54 for riboflavin in FFQ2 and the 24-HRs. CONCLUSION: The FFQ developed for female adolescents in the Suihua area is a reliable and valid instrument for ranking individuals within this study.

  12. Measurement error adjustment in essential fatty acid intake from a food frequency questionnaire: alternative approaches and methods

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    Satia Jessie A

    2007-09-01

    Full Text Available Abstract Background We aimed at assessing the degree of measurement error in essential fatty acid intakes from a food frequency questionnaire and the impact of correcting for such an error on precision and bias of odds ratios in logistic models. To assess these impacts, and for illustrative purposes, alternative approaches and methods were used with the binary outcome of cognitive decline in verbal fluency. Methods Using the Atherosclerosis Risk in Communities (ARIC study, we conducted a sensitivity analysis. The error-prone exposure – visit 1 fatty acid intake (1987–89 – was available for 7,814 subjects 50 years or older at baseline with complete data on cognitive decline between visits 2 (1990–92 and 4 (1996–98. Our binary outcome of interest was clinically significant decline in verbal fluency. Point estimates and 95% confidence intervals were compared between naïve and measurement-error adjusted odds ratios of decline with every SD increase in fatty acid intake as % of energy. Two approaches were explored for adjustment: (A External validation against biomarkers (plasma fatty acids in cholesteryl esters and phospholipids and (B Internal repeat measurements at visits 2 and 3. The main difference between the two is that Approach B makes a stronger assumption regarding lack of error correlations in the structural model. Additionally, we compared results from regression calibration (RCAL to those from simulation extrapolation (SIMEX. Finally, using structural equations modeling, we estimated attenuation factors associated with each dietary exposure to assess degree of measurement error in a bivariate scenario for regression calibration of logistic regression model. Results and conclusion Attenuation factors for Approach A were smaller than B, suggesting a larger amount of measurement error in the dietary exposure. Replicate measures (Approach B unlike concentration biomarkers (Approach A may lead to imprecise odds ratios due to larger

  13. Evaluation of a Modified Italian European Prospective Investigation into Cancer and Nutrition Food Frequency Questionnaire for Individuals with Celiac Disease.

    Science.gov (United States)

    Mazzeo, Teresa; Roncoroni, Leda; Lombardo, Vincenza; Tomba, Carolina; Elli, Luca; Sieri, Sabina; Grioni, Sara; Bardella, Maria T; Agostoni, Carlo; Doneda, Luisa; Brighenti, Furio; Pellegrini, Nicoletta

    2016-11-01

    To date, it is unclear whether individuals with celiac disease following a gluten-free (GF) diet for several years have adequate intake of all recommended nutrients. Lack of a food frequency questionnaire (FFQ) for individuals with celiac disease could be partly responsible for this still-debated issue. The aim of the study is to evaluate the performance of a modified European Prospective Investigation into Cancer and Nutrition (EPIC) FFQ in estimating nutrient and food intake in a celiac population. In a cross-sectional study, the dietary habits of individuals with celiac disease were reported using a modified Italian EPIC FFQ and were compared to a 7-day weighed food record as a reference method. A total of 200 individuals with histologically confirmed celiac disease were enrolled in the study between October 2012 and August 2014 at the Center for Prevention and Diagnosis of Celiac Disease (Milan, Italy). Nutrient and food category intake were calculated by 7-day weighed food record using an Italian food database integrated with the nutrient composition of 60 GF foods and the modified EPIC FFQ, in which 24 foods were substituted with GF foods comparable for energy and carbohydrate content. An evaluation of the modified FFQ compared to 7-day weighed food record in assessing the reported intake of nutrient and food groups was conducted using Spearman's correlation coefficients and weighted κ. One hundred individuals completed the study. The Spearman's correlation coefficients of FFQ and 7-day weighed food record ranged from .13 to .73 for nutrients and from .23 to .75 for food groups. A moderate agreement, which was defined as a weighted κ value of .40 to .60, was obtained for 30% of the analyzed nutrients, and 40% of the nutrients showed values between .30 and .40. The weighted κ exceeded .40 for 60% of the 15 analyzed food groups. The modified EPIC FFQ demonstrated moderate congruence with a weighed food record in ranking individuals by dietary intakes

  14. Reproducibility and Validity of a Food Frequency Questionnaire Designed to Assess Diet in Children Aged 4-5 Years

    Science.gov (United States)

    Vioque, Jesus; Gimenez-Monzo, Daniel; Navarrete-Muñoz, Eva Maria; Garcia-de-la-Hera, Manuela; Gonzalez-Palacios, Sandra; Rebagliato, Marisa; Ballester, Ferran; Murcia, Mario; Iñiguez, Carmen; Granado, Fernando

    2016-01-01

    Background The food frequency questionnaire (FFQ) is the most efficient and cost-effective method to investigate the relationship between usual diet and disease in epidemiologic studies. Although FFQs have been validated in many adult populations worldwide, the number of valid FFQ in preschool children is very scarce. The aim of this study was to evaluate the reproducibility and validity of a semi-quantitative FFQ designed for children aged 4 to 5 years. Materials and methods In this study, we have included 169 children aged 4–5 years from the INMA project in Valencia, a population-based prospective cohort study of mothers and children in Spain. The 105-items FFQ was administered twice to the parents or care-givers of children over a 9-month period. Reproducibility was explored by comparing intake of nutrients by the FFQs, while validity was examined by comparing the nutrient values from the FFQs with the average nutrient values of three 24 hour dietary recall (24hDR) taken in the period, and also, with the concentration in blood specimens for several vitamins (carotenoids, folate, vitamin B12, vitamin C and α-tocopherol). Pearson correlation coefficients and de-attenuated correlation coefficients were calculated and we also evaluated misclassification by quintile distribution. Results All correlation coefficients for reproducibility for nutrients and major food groups were statistically significant; the average correlation coefficients for daily intake were 0.43 for food groups and 0.41 for nutrients. The average correlation coefficients for validity for daily intakes against 24hDR was r = 0.30, and the average for de-attenuated correlation coefficients was r = 0.44. When evaluating validity against the blood concentration of vitamins, statistically significant correlations were observed for vitamin C (0.35), lycopene (0.31), β-Cryptoxantin (0.40), and vitamin E (0.29); the average of correlation coefficients was r = 0.21. Conclusion Despite some low to

  15. Relative validity of a web-based food frequency questionnaire for patients with type 1 and type 2 diabetes in Denmark

    DEFF Research Database (Denmark)

    Bentzen, S. M. R.; Knudsen, Vibeke Kildegaard; Christensen, Tue

    2016-01-01

    Diet has an important role in the management of diabetes. However, little is known about dietary intake in Danish diabetes patients. A food frequency questionnaire (FFQ) focusing on most relevant nutrients in diabetes including carbohydrates, dietary fibres and simple sugars was developed...... and validated. To examine the relative validity of nutrients calculated by a web-based food frequency questionnaire for patients with diabetes. The FFQ was validated against a 4-day pre-coded food diary (FD). Intakes of nutrients were calculated. Means of intake were compared and cross...... and simple sugars), patients were classified correctly according to low and high intakes. The FFQ is a reliable dietary assessment tool to use in research and evaluation of patient education for patients with diabetes....

  16. Diet assessment in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil: Development of a food frequency questionnaire

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    Maria del Carmen Bisi Molina

    2013-04-01

    Full Text Available OBJECTIVE: The objective of this article is to present the development of the Food Frequency Questionaire used in the Longitudinal Study of Adult Health-Brazil and analyze how diet exposes individuals to cardiovascular diseases and type 2 diabetes Mellitus. METHODS: The Longitudinal Study of Adult Health-Brazil dietary assessment instrument is based on a previously validated Food Frequency Questionaire and the final list of items took into consideration a study done in the six Longitudinal Study of Adult Health-Brazil investigation centers. RESULTS: New foods/preparations were included in the Food Frequency Questionaire with their respective portions, totaling 114 items. The perspectives of dietary analysis and cardiovascular diseases and diabetes are presented in Longitudinal Study of Adult Health-Brazil. CONCLUSION: A new instrument was developed to cover the regional particularities of the study population.

  17. The frequency of smoking and problem drinking among general hospital inpatients in Brazil - using the AUDIT and Fagerström questionnaires

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    Neliana Buzi Figlie

    2000-09-01

    Full Text Available CONTEXT: Although the CAGE questionnaire is one of the most widely used alcohol screening instruments, it has been criticized for not identifying people who are drinking heavily or who have alcohol related problems but do not as yet show symptoms of alcohol dependence. The AUDIT (Alcohol Use Disorder Identification Test questionnaire was developed by WHO as a screening instrument specifically designed to identify problem drinkers, as well as those who were already dependent on alcohol. OBJECTIVE: The aim of this study was to use the AUDIT and Fagerström questionnaires in a general hospital inpatient population to measure the frequency of problem drinking and nicotine dependence, and to see if levels varied between medical speciality. DESIGN: Retrospective cross-sectional study. SETTING: Federally funded public teaching hospital. SAMPLE: 275 inpatients from both genders. MAIN MEASUREMENTS: Socio-demographic data, AUDIT (Alcohol Use Disorders Identification Test and Fagerström Test for Nicotine Dependence. RESULTS: We interviewed 275 inpatients, 49% of whom were men and 51% women. Thirty-four patients were identified as "cases" by the Audit questionnaire; 22% of the male patients and 3% of the females. Just over 21% of inpatients were current smokers. The gastroenterology (26% and general medicine (16% inpatient units had the largest number of individual cases. CONCLUSIONS: Only by knowing the prevalence of alcohol abuse/dependence and nicotine dependence in a general hospital can we evaluate the need for a specialized liaison service to identify and treat these patients.

  18. New technologies applied to food frequency questionnaires: a current perspective Nuevas tecnologías aplicadas a los cuestionarios de frecuencia de consumo de alimentos: una perspectiva actual

    Directory of Open Access Journals (Sweden)

    P. García-Segovia

    2011-08-01

    Full Text Available The food frequency questionnaires are widely used in epidemiological researches like dietary assessment method. Traditionally, they have been self-administered in paper but the use of information and communication technologies has led to develop Internet and computerized food frequency questionnaires. It is the objective of this article to offer a global perspective of the new technologies applied to FFQ. It will be presented the purpose of the food frequency questionnaire, the number of strengths of the web-based surveys versus print-surveys and finally, a description of the manuscripts that have used web-based and computerized FFQ.Los cuestionarios de frecuencia de consumo de alimentos son muy utilizados en investigaciones epidemiológicas como método para evaluar la dieta. Tradicionalmente, han sido autoadministrados en papel, pero el uso de las tecnologías de la información y la comunicación (TICs ha permitido desarrollar cuestionarios de frecuencia de consumo de alimentos computerizados y a través de Internet. El objetivo de este artículo es ofrecer una perspectiva actual del uso de las nuevas tecnologías aplicadas al diseño e interpretación de los cuestionarios de frecuencia de consumo de alimentos. En el presente trabajo se resumen los objetivos de los cuestionarios de frecuencia de consumo de alimentos, las ventajas de los cuestionarios autoadministrados por Internet frente a los administrados en papel y finalmente, se describirán diferentes estudios que han usado cuestionarios de frecuencia de consumo de alimentos autoadministrados mediante el uso de ordenador o a través de Internet.

  19. Validation of an Online Food Frequency Questionnaire against Doubly Labelled Water and 24 h Dietary Recalls in Pre-School Children

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    Christine Delisle Nyström

    2017-01-01

    Full Text Available The development of easy-to-use and accurate methods to assess the intake of energy, foods and nutrients in pre-school children is needed. KidMeal-Q is an online food frequency questionnaire developed for the LifeGene prospective cohort study in Sweden. The aims of this study were to compare: (i energy intake (EI obtained using KidMeal-Q to total energy expenditure (TEE measured via doubly labelled water and (ii the intake of certain foods measured using KidMeal-Q to intakes acquired by means of 24 h dietary recalls in 38 children aged 5.5 years. The mean EI calculated using KidMeal-Q was statistically different (p < 0.001 from TEE (4670 ± 1430 kJ/24 h and 6070 ± 690 kJ/24 h, respectively. Significant correlations were observed for vegetables, fruit juice and candy between KidMeal-Q and 24 h dietary recalls. Only sweetened beverage consumption was significantly different in mean intake (p < 0.001, as measured by KidMeal-Q and 24 h dietary recalls. In conclusion, KidMeal-Q had a relatively short answering time and comparative validity to other food frequency questionnaires. However, its accuracy needs to be improved before it can be used in studies in pre-school children.

  20. Validación de un cuestionario de frecuencia de consumo de licopeno Validation of a questionnaire of lycopene frequency intake

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    M. Ramos Gordillo

    2012-08-01

    previous validation. The purpose of this study was to validate a frequency questionnaire in order to assess the intake of licopene, in the population of the Canary Islands. Methods: A food intake frequency questionnaire was designed and administered to 70 patients of the Plastic Surgery Service of the Hospital Universitario Insular de Gran Canaria. Estimated lycopene intake from the food intake frequency questionnaire was examined in relation to plasma lycopene levels, measured by HPLC. Results: The Spearman correlation coefficient between estimated lycopene intake and plasma levels was 0,421 and the validity of the questionnaire was demonstrated. Furthermore, an association between obesity and some pathologies with plasma lycopene levels was observed, although not statistically significant. Conclusions: The food intake frequency questionnaire is valid and it could be useful in epidemiological studies in the population of the Canary Islands.

  1. Methodology for estimating dietary data from the semi-quantitative food frequency questionnaire of the Mexican National Health and Nutrition Survey 2012

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    Ivonne Ramírez-Silva

    2016-12-01

    Full Text Available Objective. To describe the methodology used to clean up and estimate dietary intake (DI data from the Semi-Quantitative Food Frequency Questionnaire (SFFQ of the Mexican National Health and Nutrition Survey 2012. Materials and methods. DI was collected through a shortterm SFFQ regarding 140 foods (from October 2011 to May 2012. Energy and nutrient intake was calculated accordingto a nutrient database constructed specifically for the SFFQ. Results. A total of 133 nutrients including energy and fiber were generated from SFFQ data. Between 4.8 and 9.6% of the survey sample was excluded as a result of the cleaning process. Valid DI data were obtained regarding energy and nutrients consumed by 1 212 pre-school children, 1 323 school children, 1 961 adolescents, 2 027 adults and 526 older adults. Conclusions. We documented the methodology used to clean up and estimate DI from the SFFQ used in national dietary assessments in Mexico.

  2. Development and Validation of a Semi-Quantitative Food Frequency Questionnaire to Assess Dietary Intake of Turkish School-Aged Children

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    Güneş Fatma Esra

    2016-06-01

    Full Text Available The aim of this study was to develop and validate a food frequency questionnaire (FFQ on the dietary intake of Turkish school-aged children. Fifty randomly selected students aged 7–12 from urban areas of Istanbul were included in this study. An FFQ, containing a list of 138 frequently consumed foods was developed. Dietary records (DRs including three days, and FFQs were collected during autumn and spring. Daily consumption of each food group was assessed and the nutrient compositions of diet were calculated. The Pearson correlation coefficient, weighted kappa, the Bland-Altman scatter plots between averages of the reported (FFQ and the references method (DR were used as validity coefficient.

  3. Development, relative validity, and reliability of a food frequency questionnaire for a case-control study on dietary advanced glycation end products and diabetes complications.

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    Luevano-Contreras, Claudia; Durkin, Taylor; Pauls, Maria; Chapman-Novakofski, Karen

    2013-12-01

    Dietary advanced glycation end products (dAGEs) could be involved on diabetes complications, yet their quantification is not standardized. The objective of this study was to design a food frequency questionnaire (FFQ) for dAGEs, and to assess its reliability and validity. For the design, data from 30 subjects was used. The final instrument had 90 food items. To measure reliability and validity, 20 participants with type 2 diabetes filled out twice the FFQ (FFQ-T1, FFQ-T2) and 7-day food records (7-dFR). The Shrout-Fleiss coefficient was 0.98 showing good reliability. For validation, the results for the weighted kappa were 0.55 (moderate agreement) for FFQ-T1 and 0.64 (good agreement) for FFQ-T2, and 75% and 80% of subjects respectively were correctly classified into tertiles; Bland-Altman graphics showed no systematic bias. This FFQ is comparable to 7-dFR for measuring dAGEs. To our knowledge, this is the first questionnaire designed to measure specifically dAGEs.

  4. Development of a semi-quantitative food frequency questionnaire for use in United Arab Emirates and Kuwait based on local foods

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    Yusuf Salim

    2005-05-01

    Full Text Available Abstract Background The Food Frequency Questionnaire (FFQ is one of the most commonly used tools in epidemiologic studies to assess long-term nutritional exposure. The purpose of this study is to describe the development of a culture specific FFQ for Arab populations in the United Arab Emirates (UAE and Kuwait. Methods We interviewed samples of Arab populations over 18 years old in UAE and Kuwait assessing their dietary intakes using 24-hour dietary recall. Based on the most commonly reported foods and portion sizes, we constructed a food list with the units of measurement. The food list was converted to a Semi-Quantitative Food Frequency Questionnaire (SFFQ format following the basic pattern of SFFQ using usual reported portions. The long SFFQ was field-tested, shortened and developed into the final SFFQ. To estimate nutrients from mixed dishes we collected recipes of those mixed dishes that were commonly eaten, and estimated their nutritional content by using nutrient values of the ingredients that took into account method of preparation from the US Department of Agriculture's Food Composition Database. Results The SFFQs consist of 153 and 152 items for UAE and Kuwait, respectively. The participants reported average intakes over the past year. On average the participants reported eating 3.4 servings/d of fruits and 3.1 servings/d of vegetables in UAE versus 2.8 servings/d of fruits and 3.2 servings/d of vegetables in Kuwait. Participants reported eating cereals 4.8 times/d in UAE and 5.3 times/d in Kuwait. The mean intake of dairy products was 2.2/d in UAE and 3.4 among Kuwaiti. Conclusion We have developed SFFQs to measure diet in UAE and Kuwait that will serve the needs of public health researchers and clinicians and are currently validating those instruments.

  5. Validation of a short, qualitative food frequency questionnaire in French adults participating in the MONA LISA-NUT study 2005-2007.

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    Giovannelli, Jonathan; Dallongeville, Jean; Wagner, Aline; Bongard, Vanina; Laillet, Brigitte; Marecaux, Nadine; Ruidavets, Jean Bernard; Haas, Bernadette; Ferrieres, Jean; Arveiler, Dominique; Simon, Chantal; Dauchet, Luc

    2014-04-01

    Food frequency questionnaires (FFQs) are often used to evaluate individuals' food intakes in epidemiologic studies because of their simplicity and low cost. To assess the validity of a short (24 items), qualitative FFQ used in the MONA LISA-NUT study. Cross-sectional study of a representative sample in three French counties. The sample included 2,630 participants aged 35 to 65 years from the MONA LISA-NUT study. Food consumption was measured with the FFQ and via food records for 3 consecutive days. Plasma fatty acids were measured from a subset of participants. The FFQ items' validity was assessed by calculating crude and deattenuated Pearson correlation coefficients between frequencies reported by the FFQ and average weights reported by the food records. Furthermore, the validity of some items of the FFQ measuring the consumption of fatty foods was assessed by calculating Pearson correlation coefficients between frequencies of consumption of these foods and dosages of the corresponding plasma fatty acids: fish and eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), olive oil and oleic acid, margarine and elaidic acid, and dairy products and pentadecanoic and heptadecanoic acids. The mean of the deattenuated Pearson correlation coefficients for all items was 0.46, with values ranging from 0.22 (fried food) to 0.77 (breakfast cereal). The correlation coefficient was ≤ 0.4 for one third of the 24 items. Moderate correlations were found between fish and EPA/DHA (EPA: r=0.43, 95% CI 0.33 to 0.51; DHA: r=0.39, 95% CI 0.30 to 0.47), but not for other food items. One third of the 24 items in the short, qualitative FFQ evaluated here were not sufficiently valid. However, for the food groups most commonly studied in the literature, this FFQ had the same degree of validity as other questionnaires designed to classify subjects according to their level of intake. Copyright © 2014 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  6. Preanesthesia Questionnaire

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    ... Brochures and Resources Videos AANA / Patients Pre-Anesthesia Questionnaire Page Content The information you supply below assists ... complementary or alternative medicines)______________________________________________________ _______________________________________________________________ Prior Operations ... Pre-Anesthesia Questionnaire Please answer the following questions. These responses will ...

  7. Test-retest reproducibility of a food frequency questionnaire (FFQ and estimated effects on disease risk in the Norwegian Women and Cancer Study (NOWAC

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    Lund Eiliv

    2006-01-01

    Full Text Available Abstract Background The Norwegian Women and Cancer Study (NOWAC is a national population-based cohort study with 102 443 women enrolled at age 30–70 y from 1991 to 1997. The present study was a methodological sub-study to assess the test-retest reproducibility of the NOWAC food frequency questionnaire (FFQ, and to study how measurement errors in the data can affect estimates of disease risk. Methods A random sample of 2000 women aged 46–75 y was drawn from the cohort in 2002. A self-instructive health and lifestyle questionnaire with a FFQ section was mailed to the same subjects twice (test-retest, about three months apart, with a response rate of 75%. The FFQ was designed to assess habitual diet over the past year. We assess the reproducibility of single questions, food groups, energy, and nutrients with several statistical measures. We also demonstrate the method of regression calibration to correct disease risk estimates for measurement error. Alcohol intake (g/day and high blood pressure (yes/no is used in the example. Results For single foods there were some indications of seasonal reporting bias. For food groups and nutrients the reliability coefficients ranged from 0.5–0.8, and Pearson's r, Spearman's rs, and two intraclass correlation coefficients gave similar results. Although alcohol intake had relatively high reproducibility (r = 0.72, odds ratio estimates for the association with blood pressure were attenuated towards the null value compared to estimates corrected by regression calibration. Conclusion The level of reproducibility observed for the FFQ used in the NOWAC study is within the range reported for similar instruments, but may attenuate estimates of disease risk.

  8. Development of a Semi-Quantitative Food Frequency Questionnaire to Assess the Dietary Intake of a Multi-Ethnic Urban Asian Population

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    Nithya Neelakantan

    2016-08-01

    Full Text Available Assessing habitual food consumption is challenging in multi-ethnic cosmopolitan settings. We systematically developed a semi-quantitative food frequency questionnaire (FFQ in a multi-ethnic population in Singapore, using data from two 24-h dietary recalls from a nationally representative sample of 805 Singapore residents of Chinese, Malay and Indian ethnicity aged 18–79 years. Key steps included combining reported items on 24-h recalls into standardized food groups, developing a food list for the FFQ, pilot testing of different question formats, and cognitive interviews. Percentage contribution analysis and stepwise regression analysis were used to identify foods contributing cumulatively ≥90% to intakes and individually ≥1% to intake variance of key nutrients, for the total study population and for each ethnic group separately. Differences between ethnic groups were observed in proportions of consumers of certain foods (e.g., lentil stews, 1%–47%; and pork dishes, 0%–50%. The number of foods needed to explain variability in nutrient intakes differed substantially by ethnic groups and was substantially larger for the total population than for separate ethnic groups. A 163-item FFQ covered >95% of total population intake for all key nutrients. The methodological insights provided in this paper may be useful in developing similar FFQs in other multi-ethnic settings.

  9. Validity and reproducibility of an interviewer-administered food frequency questionnaire in Austrian adults at risk of or with overt diabetes mellitus.

    Science.gov (United States)

    Farukuoye, Michaela; Strassburger, Klaus; Kacerovsky-Bielesz, Gertrud; Giani, Guido; Roden, Michael

    2014-05-01

    Food frequency questionnaires (FFQs) provide an inexpensive tool for dietary assessment. Given the scarcity of data on their validity for nutritional analysis in persons with overt diabetes mellitus or with increased risk of diabetes (relatives of patients with diabetes), this study tests the hypothesis that an FFQ, adapted to local dietary habits, yields a reliable estimate of nutrient intake when compared with 7-day food record (7DR) in healthy, prediabetes, and diabetes cohorts. One hundred three volunteers (50 persons with overt diabetes mellitus, 24 relatives of patients with diabetes, and 29 nondiabetic individuals without a family history of diabetes) completed both FFQ and 7DR. A second FFQ was completed by 100 of these volunteers after 3 months to evaluate its reproducibility. Data were compared by correlation and Bland-Altman analyses. Across the entire group, estimates for gram intakes of nutrients and total energy were associated with wide limits of agreement between FFQ and 7DR (correlation coefficients, 0.23-0.72; P diabetes mellitus (+7.6 ± 15 g; P diabetes mellitus and relatives of patients with diabetes than in nondiabetic individuals without a family history of diabetes. Hence, the FFQ allows measuring intakes of total energy and macronutrients in prediabetes and diabetes cohorts but reveals limitations when assessing dietary composition.

  10. Development of a Semi-Quantitative Food Frequency Questionnaire to Assess the Dietary Intake of a Multi-Ethnic Urban Asian Population.

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    Neelakantan, Nithya; Whitton, Clare; Seah, Sharna; Koh, Hiromi; Rebello, Salome A; Lim, Jia Yi; Chen, Shiqi; Chan, Mei Fen; Chew, Ling; van Dam, Rob M

    2016-08-27

    Assessing habitual food consumption is challenging in multi-ethnic cosmopolitan settings. We systematically developed a semi-quantitative food frequency questionnaire (FFQ) in a multi-ethnic population in Singapore, using data from two 24-h dietary recalls from a nationally representative sample of 805 Singapore residents of Chinese, Malay and Indian ethnicity aged 18-79 years. Key steps included combining reported items on 24-h recalls into standardized food groups, developing a food list for the FFQ, pilot testing of different question formats, and cognitive interviews. Percentage contribution analysis and stepwise regression analysis were used to identify foods contributing cumulatively ≥90% to intakes and individually ≥1% to intake variance of key nutrients, for the total study population and for each ethnic group separately. Differences between ethnic groups were observed in proportions of consumers of certain foods (e.g., lentil stews, 1%-47%; and pork dishes, 0%-50%). The number of foods needed to explain variability in nutrient intakes differed substantially by ethnic groups and was substantially larger for the total population than for separate ethnic groups. A 163-item FFQ covered >95% of total population intake for all key nutrients. The methodological insights provided in this paper may be useful in developing similar FFQs in other multi-ethnic settings.

  11. Acrylamide exposure measured by food frequency questionnaire and hemoglobin adduct levels and prostate cancer risk in the Cancer of the Prostate in Sweden Study

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    Wilson, Kathryn M.; Bälter, Katarina; Adami, Hans-Olov; Grönberg, Henrik; Vikström, Anna C.; Paulsson, Birgit; Törnqvist, Margareta; Mucci, Lorelei A.

    2010-01-01

    Acrylamide, a probable human carcinogen, is formed during the cooking of many commonly consumed foods. Data are scant on whether dietary acrylamide represents an important cancer risk in humans. We studied the association between acrylamide and prostate cancer risk using two measures of acrylamide exposure: intake from a food frequency questionnaire (FFQ) and acrylamide adducts to hemoglobin. We also studied the correlation between these two exposure measures. We used data from the population-based case-control study Cancer of the Prostate in Sweden (CAPS). Dietary data was available for 1499 cases and 1118 controls. Hemoglobin adducts of acrylamide were measured in blood samples from a subset of 170 cases and 161 controls. We calculated odds ratios (ORs) for the risk of prostate cancer in high versus low quantiles of acrylamide exposure using logistic regression. The correlation between FFQ acrylamide intake and acrylamide adducts in non-smokers was 0.25 (95% confidence interval: 0.14–0.35), adjusted for age, region, energy intake, and laboratory batch. Among controls the correlation was 0.35 (95% CI: 0.21–0.48); among cases it was 0.15 (95% CI: 0.00–0.30). The OR of prostate cancer for the highest versus lowest quartile of acrylamide adducts was 0.93 (95% CI: 0.47–1.85, p-value for trend=0.98). For FFQ acrylamide, the OR of prostate cancer for the highest versus lowest quintile was 0.97 (95% CI: 0.75–1.27, p trend=0.67). No significant associations were found between acrylamide exposure and risk of prostate cancer by stage, grade, or PSA level. Acrylamide adducts to hemoglobin and FFQ-measured acrylamide intake were moderately correlated. Neither measure of acrylamide exposure – hemoglobin adducts or FFQ – was associated with risk of prostate cancer. PMID:19142870

  12. Biomarker and dietary validation of a Canadian food frequency questionnaire to measure eicosapentaenoic and docosahexaenoic acid intakes from whole food, functional food, and nutraceutical sources.

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    Patterson, Ashley C; Hogg, Ryan C; Kishi, Diane M; Stark, Ken D

    2012-07-01

    Canadian dietary sources of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) include marine and non-marine whole foods, functional foods, and nutraceuticals. In the present study, these sources were incorporated into a nutrient-specific, semi-quantitative food frequency questionnaire (FFQ) and the ability to measure the EPA and DHA intakes of Canadian adults was assessed. Specifically, the EPA and DHA intakes estimated by FFQ of 78 men and women, 20 to 60 years of age, were compared with EPA and DHA measurements from 3-day food records and measures of EPA and DHA in fasting whole blood. Mean (±standard deviation) and median intakes of EPA+DHA were 0.34±0.34 and 0.21 g/day by FFQ and 0.47±0.71 and 0.13 g/day by food record, with no significant differences between mean intakes (P=0.93). The FFQ provided higher estimates than the food record at low intakes of EPA and DHA and lower estimates at high intakes based on Bland-Altman plots. The FFQ was moderately correlated with food record (r=0.31 to 0.49) and with blood biomarker measures of EPA and DHA (r=0.31 to 0.51). Agreement analysis revealed that 42% of participants were classified in the same and 77% into same or adjacent quartile when EPA and DHA intake was assessed by food record and by FFQ. Similar quartile agreement was found for EPA and DHA intakes by FFQ with blood biomarker EPA and DHA. The range of the validity coefficients, calculated using the method of triads, was 0.43 to 0.71 for FFQ measurement of EPA+DHA. The FFQ is an adequate tool for estimating usual EPA and DHA intakes and ranking Canadian adults by their intakes. Copyright © 2012 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

  13. Performance of the quantitative food frequency questionnaire used in the Brazilian center of the prospective study Natural History of Human Papillomavirus Infection in Men: The HIM Study.

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    Teixeira, Juliana Araujo; Baggio, Maria Luiza; Giuliano, Anna R; Fisberg, Regina Mara; Marchioni, Dirce Maria Lobo

    2011-07-01

    The Natural History of Human Papillomavirus (HPV) Infection in Men: The HIM Study is a prospective multicenter cohort study that, among other factors, analyzes participants' diet. A parallel cross-sectional study was designed to evaluate the validity and reproducibility of the quantitative food frequency questionnaire (QFFQ) used in the Brazilian center from the HIM Study. For this, a convenience subsample of 98 men aged 18 to 70 years from the HIM Study in Brazil answered three 54-item QFFQ and three 24-hour recall interviews, with 6-month intervals between them (data collection January to September 2007). A Bland-Altman analysis indicated that the difference between instruments was dependent on the magnitude of the intake for energy and most nutrients included in the validity analysis, with the exception of carbohydrates, fiber, polyunsaturated fat, vitamin C, and vitamin E. The correlation between the QFFQ and the 24-hour recall for the deattenuated and energy-adjusted data ranged from 0.05 (total fat) to 0.57 (calcium). For the energy and nutrients consumption included in the validity analysis, 33.5% of participants on average were correctly classified into quartiles, and the average value of 0.26 for weighted kappa shows a reasonable agreement. The intraclass correlation coefficients for all nutrients were greater than 0.40 in the reproducibility analysis. The QFFQ demonstrated good reproducibility and acceptable validity. The results support the use of this instrument in the HIM Study. Copyright © 2011 American Dietetic Association. Published by Elsevier Inc. All rights reserved.

  14. Validation of a Food Frequency Questionnaire for Estimating Micronutrient Intakes in an Urban US Sample of Multi-Ethnic Pregnant Women

    Science.gov (United States)

    Kannan, Srimathi; Ni, Yu-Ming; Gennings, Chris; Ganguri, Harish B.; Wright, Rosalind J.

    2016-01-01

    Objective(s) To validate the Block98 food frequency questionnaire (FFQ) for estimating antioxidant, methyl-nutrient and polyunsaturated fatty acids (PUFA) intakes in a pregnant sample of ethnic/racial minority women in the United States (US). Methods Participants (n = 42) were from the Programming of Intergenerational Stress Mechanisms study. Total micronutrient intakes from food and supplements was ascertained using the modified Block98 FFQ and two 24-h dietary recalls collected at random on nonconsecutive days subsequent to completion of the FFQ in mid-pregnancy. Correlation coefficients (r) corrected for attenuation from within-person variation in the recalls were calculated for antioxidants (n = 7), methyl-nutrients (n = 8), and PUFAs (n = 2). Result(s) The sample was largely ethnic minorities (38 % Black, 33 % Hispanic) with 21 % being foreign born and 41 % having less than or equal to a high school degree. Significant and adequate deattenuated correlations (r ≥ 0.40) for total dietary intakes of antioxidants were observed for vitamin C, vitamin E, magnesium, and zinc. Reasonable deattenuated correlations were also observed for methyl-nutrient intakes of vitamin B6, betaine, iron, and n:6 PUFAs; however, they did not reach significance. Most women were classified into the same or adjacent quartiles (≥70 %) for total (dietary + supplements) estimates of antioxidants (5 out of 7) and methyl-nutrients (4 out of 5). Conclusions The Block98 FFQ is an appropriate dietary method for evaluating antioxidants in pregnant ethnic/minorities in the US; it may be less efficient in measuring methyl-nutrient and PUFA intakes. PMID:26511128

  15. The reasonable reliability of a self-administered food frequency questionnaire for an urban, Japanese, middle-aged population: the Suita study.

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    Maruyama, Koutatsu; Kokubo, Yoshihiro; Yamanaka, Tamami; Watanabe, Makoto; Iso, Hiroyasu; Okamura, Tomonori; Miyamoto, Yoshihiro

    2015-01-01

    Because few studies have developed food frequency questionnaires (FFQ) and examined their reliability for Japanese urban populations, FFQ developed for urban Japanese populations may show reasonable reliability for estimating intakes of nutrients and food groups. Therefore, the objective of this study was to examine the reliability of an FFQ developed for a prospective cohort study in a Japanese urban area. A total of 29 men and 29 women aged 47 to 78 years were selected from participants in the Suita study from February 1997 to February 1998. Seven-consecutive-day dietary records (DR) was collected in each season (28-day DR). The FFQ were administered 3 times in total in each season, except in autumn. We calculated Spearman correlation coefficients to assess the validation of the first and third FFQ compared with 28-day DR and to assess the repeatability for 3-, 6-, and 9-month intervals. Reasonable validity of each FFQ compared with 28-day DR were observed for energy intake and for 27 nutrients, and 11 food groups were selected. Median (range) Spearman rank correlation coefficients for energy-adjusted nutrient and food group intakes of the first FFQ were 0.52 (0.14-0.88) and 0.53 (0.24-0.74), and those of the third FFQ were 0.51 (0.07-0.84) and 0.57 (0.16-0.75), respectively. The repeatability of each interval was relatively good; median (range) Spearman correlation coefficients of nutrients for 3-, 6-, and 9-month intervals were 0.67 (0.40-0.85), 0.63 (0.25-0.93), and 0.62 (0.31-0.87), respectively; those for food groups were 0.58 (0.42-0.76), 0.56 (0.24-0.80), and 0.65 (0.30-0.76), respectively. In conclusion, this FFQ is useful for evaluating the associations of nutrient and food intakes with cardiovascular diseases and their risk factors in Japanese urban populations. Copyright © 2015 Elsevier Inc. All rights reserved.

  16. Comparative validity of the ASSO–Food Frequency Questionnaire for the web-based assessment of food and nutrients intake in adolescents

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    Garden Tabacchi

    2015-04-01

    Full Text Available Background: A new web-based food frequency questionnaire (the ASSO–FFQ was developed within the ASSO Project funded by the Italian Ministry of Health. Objective: The aim of the present study is to assess the validity of the ASSO–FFQ at food groups, energy, and nutrients level. Design and subjects: The validation study compared the ASSO–FFQ against a weighted food record (WFR measuring foods, beverages and supplements intake, compiled during the week following the ASSO–FFQ administration. Ninety-two subjects aged 14–17, recruited from secondary schools in Palermo (Italy, completed the ASSO–FFQ and WFR. The intake of 24 food groups, energy, and 52 nutrients were taken as main outcomes. Tests for paired observations, Spearman and Pearson's correlation coefficients (cc, kappa statistics and classification in quintiles, Bland–Altman plots and multiple regressions, on untransformed and transformed data were used for the statistical analysis. Results: High cc (≥0.40 were found for soft drinks, milk, tea/coffee, vegetables, and lactose; fair energy-adjusted cc (0.25–0.40 for water, alcoholic drinks, breakfast cereals, fishery products, savory food, fruit juice, eggs, and 19 nutrients. The subjects classified in the same or adjacent quintile for food groups ranged from 40% (alcoholic drinks to 100% (dried fruit; for energy and nutrients from 43% (phosphorus, thiamin, niacin to 77% (lactose. Mean differences were not significant for water, soft drinks, meat, sweets, animal fats, milk and white bread, and vitamin B12 and folate. Limits of Agreement were broad for all food groups and nutrients. School, gender, alcohol consumption and between meals mainly affected most food groups’ intake differences. Gender stratification showed females had increased Pearson's cc for energy and 28 nutrients, such as almost all fats, carbohydrates, vitamins and minerals. Conclusions: The ASSO–FFQ could be applied in epidemiological studies for the

  17. Comparison of a Full Food-Frequency Questionnaire with the Three-Day Unweighted Food Records in Young Polish Adult Women: Implications for Dietary Assessment

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    Ewa Niedzwiedzka

    2013-07-01

    Full Text Available The food frequency questionnaire (FFQ and the food record (FR are among the most common methods used in dietary research. It is important to know that is it possible to use both methods simultaneously in dietary assessment and prepare a single, comprehensive interpretation. The aim of this study was to compare the energy and nutritional value of diets, determined by the FFQ and by the three-day food records of young women. The study involved 84 female students aged 21–26 years (mean of 22.2 ± 0.8 years. Completing the FFQ was preceded by obtaining unweighted food records covering three consecutive days. Energy and nutritional value of diets was assessed for both methods (FFQ-crude, FR-crude. Data obtained for FFQ-crude were adjusted with beta-coefficient equaling 0.5915 (FFQ-adjusted and regression analysis (FFQ-regressive. The FFQ-adjusted was calculated as FR-crude/FFQ-crude ratio of mean daily energy intake. FFQ-regressive was calculated for energy and each nutrient separately using regression equation, including FFQ-crude and FR-crude as covariates. For FR-crude and FFQ-crude the energy value of diets was standardized to 2000 kcal (FR-standardized, FFQ-standardized. Methods of statistical comparison included a dependent samples t-test, a chi-square test, and the Bland-Altman method. The mean energy intake in FFQ-crude was significantly higher than FR-crude (2740.5 kcal vs. 1621.0 kcal, respectively. For FR-standardized and FFQ-standardized, significance differences were found in the mean intake of 18 out of 31 nutrients, for FR-crude and FFQ-adjusted in 13 out of 31 nutrients and FR-crude and FFQ-regressive in 11 out of 31 nutrients. The Bland-Altman method showed an overestimation of energy and nutrient intake by FFQ-crude in comparison to FR-crude, e.g., total protein was overestimated by 34.7 g/day (95% Confidence Interval, CI: −29.6, 99.0 g/day and fat by 48.6 g/day (95% CI: −36.4, 133.6 g/day. After regressive transformation of

  18. Reproducibility and Validity of Dietary Patterns Assessed by a Food Frequency Questionnaire Used in the 5-Year Follow-Up Survey of the Japan Public Health Center-Based Prospective Study

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    Nanri, Akiko; Shimazu, Taichi; Ishihara, Junko; Takachi, Ribeka; Mizoue, Tetsuya; Inoue, Manami; Tsugane, Shoichiro

    2012-01-01

    Background Analysis of dietary pattern is increasingly popular in nutritional epidemiology. However, few studies have examined the validity and reproducibility of dietary patterns. We assessed the reproducibility and validity of dietary patterns identified by a food frequency questionnaire (FFQ) used in the 5-year follow-up survey of the Japan Public Health Center-Based Prospective Study (JPHC Study). Methods The participants were a subsample (244 men and 254 women) from the JPHC Study. Princ...

  19. Validação de um questionário de freqüência de consumo alimentar para população adulta Validation of a food frequency questionnaire for the adult population

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    Aída Calvão Ribeiro

    2006-10-01

    Full Text Available OBJETIVO: Investigar a validade e a reprodutibilidade de um questionário de freqüência de consumo alimentar desenvolvido para a população adulta. MÉTODOS: Foram entrevistados, em três momentos, 69 indivíduos, de ambos os sexos, freqüentadores de restaurantes industriais em dois órgãos públicos de Brasília, Distrito Federal. Na primeira e terceira entrevistas foram aplicados um recordatório 24 horas e um questionário de freqüência de consumo alimentar, e na segunda entrevista, um recordatório 24 horas. A duração média do estudo foi de 181 dias. Macronutrientes, vitaminas A e C, cálcio, ferro, zinco, colesterol, fibras e energia total foram analisados utilizando-se os coeficientes de correlação intraclasse e de Pearson, este último na forma bruta e deatenuada. RESULTADOS: Quanto à reprodutibilidade, o questionário de freqüência de consumo alimentar obteve desempenho adequado, apresentando resultados acima de 0,7 para lipídeo, colesterol, energia e proteína. Para a validade, os melhores coeficientes deatenuados foram observados para vitamina C (r=0,66, ferro (r=0,58, proteína (r=0,55 e carboidrato (r=0,55 e os piores, para colesterol (r=0,32 e vitamina A (r=0,37. CONCLUSÃO: A obtenção de coeficientes de correlação expressivos para alguns nutrientes indica que este questionário de freqüência de consumo alimentar constitui-se em um bom instrumento de pesquisa para estudos epidemiológicos em população adulta, podendo fornecer informações importantes para a implementação de ações na área de saúde e nutrição.OBJECTIVE: The aim of the present study was to investigate the validity and reproducibility of a food frequency questionnaire developed for the adult population. METHODS: Sixty-nine individuals from both genders who attended industrial restaurants from two government divisions in Brasília, Federal District, Brazil, were interviewed on three different occasions. In the first and third interviews

  20. Validity and Reproducibility of a Self-Administered Semi-Quantitative Food-Frequency Questionnaire for Estimating Usual Daily Fat, Fibre, Alcohol, Caffeine and Theobromine Intakes among Belgian Post-Menopausal Women

    Directory of Open Access Journals (Sweden)

    Selin Bolca

    2009-01-01

    Full Text Available A novel food-frequency questionnaire (FFQ was developed and validated to assess the usual daily fat, saturated, mono-unsaturated and poly-unsaturated fatty acid, fibre, alcohol, caffeine, and theobromine intakes among Belgian post-menopausal women participating in dietary intervention trials with phyto-oestrogens. The relative validity of the FFQ was estimated by comparison with 7 day (d estimated diet records (EDR, n 64 and its reproducibility was evaluated by repeated administrations 6 weeks apart (n 79. Although the questionnaire underestimated significantly all intakes compared to the 7 d EDR, it had a good ranking ability (r 0.47-0.94; weighted κ 0.25-0.66 and it could reliably distinguish extreme intakes for all the estimated nutrients, except for saturated fatty acids. Furthermore, the correlation between repeated administrations was high (r 0.71-0.87 with a maximal misclassification of 7% (weighted κ 0.33-0.80. In conclusion, these results compare favourably with those reported by others and indicate that the FFQ is a satisfactorily reliable and valid instrument for ranking individuals within this study population.

  1. Validity and reproducibility of a self-administered semi-quantitative food-frequency questionnaire for estimating usual daily fat, fibre, alcohol, caffeine and theobromine intakes among Belgian post-menopausal women.

    Science.gov (United States)

    Bolca, Selin; Huybrechts, Inge; Verschraegen, Mia; De Henauw, Stefaan; Van de Wiele, Tom

    2009-01-01

    A novel food-frequency questionnaire (FFQ) was developed and validated to assess the usual daily fat, saturated, mono-unsaturated and poly-unsaturated fatty acid, fibre, alcohol, caffeine, and theobromine intakes among Belgian post-menopausal women participating in dietary intervention trials with phyto-oestrogens. The relative validity of the FFQ was estimated by comparison with 7 day (d) estimated diet records (EDR, n 64) and its reproducibility was evaluated by repeated administrations 6 weeks apart (n 79). Although the questionnaire underestimated significantly all intakes compared to the 7 d EDR, it had a good ranking ability (r 0.47-0.94; weighted kappa 0.25-0.66) and it could reliably distinguish extreme intakes for all the estimated nutrients, except for saturated fatty acids. Furthermore, the correlation between repeated administrations was high (r 0.71-0.87) with a maximal misclassification of 7% (weighted kappa 0.33-0.80). In conclusion, these results compare favourably with those reported by others and indicate that the FFQ is a satisfactorily reliable and valid instrument for ranking individuals within this study population.

  2. Comparison of a short version of the Food Frequency Questionnaire with its long version--a cross-sectional analysis in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil).

    Science.gov (United States)

    Mannato, Livia Welter; Pereira, Taisa Sabrina Silva; Velasquez-Melendez, Gustavo; Cardoso, Letícia de Oliveira; Benseñor, Isabela Martins; Molina, Maria del Carmen Bisi

    2015-01-01

    The food frequency questionnaire (FFQ) is the preferred instrument for obtaining dietary information in epidemiological studies. A short form of the FFQ was compared with the original version that was used in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil), and also with three 24-hour dietary recalls. Cross-sectional study carried out in six Brazilian state capitals. Multiple linear regression was used to reduce the original food and drink list of the FFQ, which had contained 114 food items. The frequency of consumption and nutritional composition of the foods were also taken into consideration. To assess the validity of the shortened FFQ, the energy and nutrients values of the 24-hour dietary recalls were deattenuated and log-transformed. The list of the FFQ of ELSA-Brasil was reduced to 76 food items. The intraclass correlation coefficients in the validation study ranged from 0.17 (selenium) to 0.66 (calcium). The number of items was reduced by 33%, while still maintaining relatively good capacity to measure energy and selected nutrients.

  3. Comparison of a Household Consumption and Expenditures Survey with Nationally Representative Food Frequency Questionnaire and 24-hour Dietary Recall Data for Assessing Consumption of Fortifiable Foods by Women and Young Children in Cameroon.

    Science.gov (United States)

    Engle-Stone, Reina; Brown, Kenneth H

    2015-06-01

    Household Consumption and Expenditures Surveys (HCES) are potential sources of data on dietary patterns for planning fortification programs, but they rarely have been compared with individual-level dietary assessment methods. To compare apparent consumption of fortifiable foods estimated from the Third Cameroon Household Survey (ECAM3) with the results of a national dietary survey using food frequency questionnaire (FFQ) and 24-hour recall (24HR) methods among women aged 15 to 49 years and children aged 12 to 59 months. We estimated coverage and frequency of consumption in the previous week (ECAM3 and FFQ) and coverage and amount consumed on the previous day (ECAM3 and 24HR) of refined vegetable oil, wheat flour, sugar, and bouillon cubes. Coverage in the past week as measured by the ECAM3 and FFQ, respectively, was 64% vs. 54% for oil, 60% vs. 92% for flour, 69% vs. 78% for sugar, and 85% vs. 96% for bouillon cubes. The different methods identified similar patterns of coverage among subgroups for oil, but patterns for other foods were variable. Frequency of consumption and previous-day coverage were lower with the ECAM3 than with the FFQ and 24HR, likely reflecting infrequent acquisition relative to intake. For women, the mean amounts consumed on the previous day (among consumers) were 43 vs. 29 g of oil, 71 vs. 83 g of flour, 42 vs. 32 g of sugar, and 5.0 vs. 2.4 g of bouillon cubes (ECAM and 24HR, respectively). HCES provide useful information on patterns of food access but inadequate information on individual consumption amounts to estimate appropriate food fortification levels. © The Author(s) 2015.

  4. Validación de un cuestionario de frecuencia de consumo alimentario corto: reproducibilidad y validez Validation of a short questionnaire on frequency of dietary intake: reproducibility and validity

    Directory of Open Access Journals (Sweden)

    I. Trinidad Rodríguez

    2008-06-01

    previous validation. Our objective was to validate a short questionnaire on the frequency of dietary intake. Setting: Reus (Catalonia, Spain. Subjects: 71 adolescents and adults from both genders, with different socio-cultural levels and professional categories. Interventions: The questionnaire was administered two times within an approximated period of one year to assess the reproducibility. Through this time, 9 24-hour recalls (gold standard method were administered to determine the validity. Results: Spearman's correlation coefficients for the reproducibility analysis varied 0.49-0.75 for foods and 0.44-0.78 for energy and nutrients. Most of intra-class correlation coefficients varied 0.53-0.96 for foods and 0.49-0.78 for energy and nutrients. In the validity analysis, the correlations varied 0.27-0.59 for foods, and 0.30-0.49 for energy and nutrients. The correlation coefficients in the validity study varied 0.41-0.67 for foods, and 0.29-0.47 for energy and nutrients. Conclusion: The questionnaire allows assessing the consumption of groups of foods, energy and macronutrients with adequate reproducibility and validity.

  5. The Survey Questionnaire

    Science.gov (United States)

    Ritter, Lois A. Ed.; Sue, Valerie M., Ed.

    2007-01-01

    Internet-based surveys are still relatively new, and researchers are just beginning to articulate best practices for questionnaire design. Online questionnaire design has generally been guided by the principles applying to other self-administered instruments, such as paper-based questionnaires. Web-based questionnaires, however, have the potential…

  6. Cuestionario de frecuencia de consumo de alimentos para estimación de ingestión de folato en México Validity and reproducibility of a food frequency questionnaire to estimate folate intake in a Mexican population

    Directory of Open Access Journals (Sweden)

    Marcia Galván-Portillo

    2011-06-01

    Full Text Available OBJETIVO: Evaluar la reproducibilidad y validez de la ingestión de folato (IF,estimada a partir de un cuestionario de frecuencia de consumo (CFC, considerando el factor de retención (FR correspondiente al método de preparación empleado. MATERIAL Y MÉTODOS: Al inicio del estudio se entrevistó a 497 adultos sanos; un año después se realizó una segunda entrevista a una muestra de 100 individuos seleccionados aleatoriamente,quenohubieran modificadosudietadurante el año previo; adicionalmente, para evaluar la validez de la IF, mediante radioinmunoensayo,se determinaron los niveles de folato sérico (FS. RESULTADOS: La reproducibilidad de la IF fue de 0.36 y 0.34 para el folato sin y con FR,respectivamente. Se observó una correlación significativa entre la IF y el FS de 0.18 con FR y 0.21 sin FR (pOBJECTIVE: To evaluate the reproducibility and validity of folate intake (FI estimated from a food frequency questionnaire (FFQ, taking into account the retention factor (RF associated with meal preparation processes. MATERIAL AND METHODS: A total of 497 healthy adult participants were interviewed with a FFQ.A second interview was performed one year later of a sample of 100 randomly selected individuals who had not modified their diet during the previous year. In addition,serum folate (SF concentrations were measured by radioimmunoassay to evaluate the validity of FI. RESULTS: Reproducibility of IF was 0.36 and 0.34 for folate without FR and with FR, respectively. SF concentration significantly correlated with FI (0.18 with RF; 0.21 without RF, p<0.05. CONCLUSION: Incorporating the folate RF in estimates of FI does not improve the reproducibility and validity of those estimates.

  7. Utah Drug Use Questionnaire.

    Science.gov (United States)

    Governor's Citizen Advisory Committee on Drugs, Salt Lake City, UT.

    This questionnaire assesses drug use practices in junior and senior high school students. The 21 multiple choice items pertain to drug use practices, use history, available of drugs, main reason for drug use, and demographic data. The questionnaire is untimed, group administered, and may be given by the classroom teacher in about 10 minutes. Item…

  8. Parental authority questionnaire.

    Science.gov (United States)

    Buri, J R

    1991-08-01

    A questionnaire was developed for the purpose of measuring Baumrind's (1971) permissive, authoritarian, and authoritative parental authority prototypes. It consists of 30 items per parent and yields permissive, authoritarian, and authoritative scores for both the mother and the father; each of these scores is derived from the phenomenological appraisals of the parents' authority by their son or daughter. The results of several studies have supported the Parental Authority Questionnaire as a psychometrically sound and valid measure of Baumrind's parental authority prototypes, and they have suggested that this questionnaire has considerable potential as a valuable tool in the investigation of correlates of parental permissiveness, authoritarianism, and authoritativeness.

  9. Elaboração de questionário de frequência alimentar semiquantitativo para adolescentes da região metropolitana do Rio de Janeiro, Brasil Development of a semiquantitative food frequency questionnaire for adolescents from the Rio de Janeiro metropolitan area, Brazil

    Directory of Open Access Journals (Sweden)

    Marina Campos Araujo

    2010-04-01

    Full Text Available OBJETIVO: Descrever a elaboração de um questionário de frequência alimentar para adolescentes do Rio de Janeiro, Brasil. MÉTODOS: Para seleção dos itens alimentares incluídos no questionário de frequência alimentar, utilizaram-se dados de três dias de registro alimentar obtidos em uma amostra de 430 estudantes, na faixa etária de 12 a 19 anos, da rede de ensino estadual de Niterói, Rio de Janeiro. Foram incluídos os itens alimentares mais citados nos registros e que contribuíram com 95% do consumo de energia e nutrientes dos registros alimentares. As porções de referência foram as mais frequentemente referidas nos registros do estudo de base. As opções de frequência foram definidas de forma diferenciada para os diversos itens do questionário. RESULTADOS: Nos registros foram listados 306 alimentos, dos quais 249 itens foram incluídos no questionário, isoladamente ou agrupados, compondo uma lista de 90 itens. Os 14 itens alimentares mais consumidos por adolescentes do Rio de Janeiro, nesse estudo e em estudo anterior, foram associados a oito opções de frequência de consumo; 18 itens alimentares foram acoplados a sete opções de frequência e para 58 itens foram definidas cinco opções de frequência. CONCLUSÃO: O estudo permitiu a elaboração do questionário de frequência alimentar para adolescentes da Região Metropolitana do Rio de Janeiro, o qual será submetido às análises de reprodutibilidade e validade. Este questionário representa um instrumento valioso para pesquisas epidemiológicas que investiguem o consumo alimentar de adolescentes.OBJECTIVE: The objective of this study was to describe the development of a food frequency questionnaire for adolescents from the Rio de Janeiro metropolitan area, Brazil. METHODS: The selection of food items included in the questionnaire was done by recording the foods consumed during 3 days by 430 students aged 12 to 19 years from the public schools of Niterói (RJ Brasil

  10. National questionnaire survey of TMA.

    Science.gov (United States)

    Ito, Naomi; Wada, Hideo; Matsumoto, Masanori; Fujimura, Yoshihiro; Murata, Mitsuru; Izuno, Takashi; Sugita, Minoru; Ikeda, Yasuo

    2009-10-01

    A questionnaire survey of Japanese patients with thrombotic microangiopathy (TMA) was carried out to investigate the frequency, laboratory abnormalities, and outcome in 2004. Out of 185 patients, there were 13 with familial TMA and 172 with acquired TMA. In acquired TMA, there were 66 with Escherichia coli O-157 infection (O-157)-related TMA, 35 with ADAMTS13-related TMA, and 22 with other types of TMA. The frequency of TMA in O-157-related TMA was high in patients from 0- to 15-year-old, and acquired TMA without O-157 was frequently observed in patients ranging from 31 to 65 years of age. In the treatment of acquired TMA, including plasma exchange (PE), steroid, antiplatelet agent, and anticoagulant, PE was carried out in 94.3% of ADAMTS13-related TMA, 77.3% of other TMA, and 7.6% of O-157-related TMA. The efficacy of PE and steroid therapy tended to be higher in ADAMTS13 TMA than in other types of TMA. The complete remission rate is the highest in O-157 TMA. The mortality rate was the lowest for O-157 TMA, and this rate also tended to be lower in ADAMTS13-related TMA than in other types of TMA. However, the determination of ADAMTS13 was not universal in Japan at the time of this questionnaire.

  11. Physical Activity Questionnaire

    Directory of Open Access Journals (Sweden)

    Kostencka Alicja

    2016-11-01

    Full Text Available Study aim: The aim of the study was to determine the weekly energy expenditure measuring MET/min/week based on data collected through the Canada Fitness Survey (CFS, according to the classification used in the International Physical Activity Questionnaire (IPAQ, and to verify the adopted method to assess the level of physical activity in students of physical education.

  12. Questionnaire typography and production.

    Science.gov (United States)

    Gray, M

    1975-06-01

    This article describes the typographic principles and practice which provide the basis of good design and print, the relevant printing processes which can be used, and the graphic designer's function in questionnaire production. As they impose constraints on design decisions to be discussed later in the text, the various methods of printing and production are discussed first.

  13. [Questionnaires in sexual medicine].

    Science.gov (United States)

    Giuliano, F

    2013-07-01

    Screening, diagnosis and assessment of the management of male and female sexual dysfunctions have been greatly improved by the scientific development of self-administered questionnaires. Their use became the rule in clinical trials and epidemiological surveys. Nevertheless, their routine use has not yet become part of daily urological practice. Even if these tools replace neither the patient interview and medical history and the psychological and social context of the sexual behavior, nor clinical examination, they are of great assistance for determining management and are also highly reliable. Medical literature was reviewed and combined with expert opinion of the author. We present here several questionnaires which have been validated in their French version with the methodology for the calculation of the scores. The International Index of Erectile Function (15 items) and two abbreviated versions, the Erectile Function domain (six items) and the Sexual Health Inventory for Men (five questions) are mainly of use for patients with erectile dysfunction. They provide a robust classification of the severity of the condition. The Premature Ejaculation Profile (four questions) is used for patients with premature ejaculation. It describes premature ejaculation with the following criteria: time to ejaculation, control over ejaculation, the level of distress. The Male Health Sexual Questionnaire (25 questions) provides with a wider and more comprehensive approach to male sexuality of male sexuality including: erection, ejaculation, desire and satisfaction. This questionnaire is particularly useful to investigate ejaculatory disorders. Lastly, the Female Sexual Function Index (19 questions) is the tool of choice for female sexuality with questions regarding desire, arousal, lubrication, orgasm, satisfaction and pain. Validated, user-friendly questionnaires are available in French language for the diagnosis and the follow-up of sexual dysfunctions in both men and women

  14. Penn State Worry Questionnaire

    DEFF Research Database (Denmark)

    Esbjørn, Barbara Hoff; Reinholdt-Dunne, Marie Louise; Caspersen, Ida Dyhr

    2013-01-01

    Anxiety disorders are among the most prevalent psychiatric disturbances in childhood. Nonetheless, they often go unrecognized and untreated, which puts the child at risk for developing additional difficulties, such as academic difficulties, depression, and substance abuse. Further knowledge...... and valid assessment tools are essential to identify at-risk children. The present study investigates (i) the factor structure of the Penn State Worry Questionnaire for Children (PSWQ-C) using a large Danish community sample (N¿=¿933), and (ii) its treatment sensitivity in clinically anxious children (N...

  15. QUESTIONNAIRE 5YR 2013

    CERN Multimedia

    Association du personnel

    2013-01-01

    CERN must remain the centre of excellence that it has been for the last sixty years. Therefore, the Organization must continue to be able to attract, motivate and retain the best specialists coming from all the Member States. This is why, every five years, on the occasion of a five-yearly review, our employment conditions are compared with bodies having similar activities.In order to prepare the next five-yearly review, the topics of which will be decided by the CERN Council in June 2014, the Staff Association has drawn up a questionnaire that gives you the opportunity to tell us what you think about your current employment conditions. You can also indicate how you wish to see them evolve, and to help you we present some proposals for improvement on which you can give your opinion. Above all, do not hesitate, by using the comments’ fields available in the questionnaire, to formulate your own suggestions in all areas of your conditions of employment that are of interest to you. Your replies will hel...

  16. Penn State Worry Questionnaire

    DEFF Research Database (Denmark)

    Esbjørn, Barbara Hoff; Reinholdt-Dunne, Marie Louise; Caspersen, Ida Dyhr

    2013-01-01

    and valid assessment tools are essential to identify at-risk children. The present study investigates (i) the factor structure of the Penn State Worry Questionnaire for Children (PSWQ-C) using a large Danish community sample (N¿=¿933), and (ii) its treatment sensitivity in clinically anxious children (N......¿=¿30) treated with cognitive behavioral therapy. Results from the community sample replicated previous findings supporting the strong psychometric properties of the PSWQ-C, and yielded Danish norms and clinical cut-offs for the measure. Clinically anxious children with a generalized anxiety disorder...... (GAD; N¿=¿10) diagnosis reported significantly higher levels of worry than anxious children without GAD (N¿=¿20). At post treatment, worry levels in children with GAD but not in anxious children without GAD were normalized. Findings regarding worry in the community sample are discussed in light...

  17. Diet History Questionnaire II & Canadian Diet History Questionnaire II: Web-based DHQ

    Science.gov (United States)

    The Web-based versions of DHQ II and C-DHQ II are identical in content to the paper forms. By automating the DHQ II and providing versions on the Web for public use, researchers have another tool to collect and analyze food frequency questionnaire data.

  18. Diet History Questionnaire: International Applications

    Science.gov (United States)

    ARP staff adapted the Diet History Questionnaire (DHQ) for use by Canadian populations in collaboration with the Alberta Cancer Board. This questionnaire takes into account the different food fortification polices of the U.S. and Canada.

  19. Diet History Questionnaire: Suggested Citations

    Science.gov (United States)

    Use of the Diet History Questionnaire and Diet*Calc Analysis Software for publication purposes should contain a citation which includes version information for the software, questionnaire, and nutrient database.

  20. Equal Opportunities Questionnaire

    CERN Document Server

    2007-01-01

    The initiative to promote Equal Opportunities at CERN started in 1993. The first Equal Opportunities Officer was appointed in 1996, which was followed by the creation of the Equal Opportunities Advisory Panel in 1998. Initially the concern was mainly the fair treatment of women in the work-place. Today the emphasis has evolved to ensuring that diversity is used to increase creativity and productivity in the work-place. In order to ensure that all aspects of Equal Opportunities and Diversity are covered, CERN’s Equal Opportunities team has prepared a survey to obtain your input. Your answers are confidential and will only be used for generating statistics. The questionnaire is on-line and can be accessed via: https://espace.cern.ch/EOQ. We hope that you will take a few minutes of your time to give your input and would be grateful if you could reply before 15/10/07. For further information about Equal Opportunities at CERN see: http://cern.ch/equal-opportunities The Equa...

  1. Equal Opportunities Questionnaire

    CERN Document Server

    2007-01-01

    The initiative to promote Equal Opportunities at CERN started in 1993. The first Equal Opportunities Officer was appointed in 1996 followed by the creation of the Equal Opportunities Advisory Panel in 1998. Initially the concern was mainly the fair treatment of women in the work-place. Today the emphasis has evolved to ensuring that diversity is used to increase creativity and productivity in the work-place. In order to ensure that all aspects of Equal Opportunities and Diversity are covered, CERN’s Equal Opportunities team has prepared a survey to obtain your input. Your answers are confidential and will only be used for generating statistics. The questionnaire is on-line and can be accessed via: https://espace.cern.ch/EOQ. We hope that you will take a few minutes of your time to give your input and would be grateful if you could reply before 15/10/07. For further information about Equal Opportunities at CERN see: http://cern.ch/equal-opportunities The Equal Opportuni...

  2. The Drug-Abuse Questionnaire.

    Science.gov (United States)

    Ferneau, E.; Mueller, S.

    The drug-abuse questionnaire used to survey college student attitudes on the subject is provided. It is identical to the alcoholism questionnaire except for word changes appropriate to the subject matter. The questionnaire consists of 40 statements about drug abuse and drug abusers, with 7 possible responses: (1) completely disagree; (2) mostly…

  3. 77 FR 68795 - Protected Critical Infrastructure Information (PCII) Office Self-Assessment Questionnaire

    Science.gov (United States)

    2012-11-16

    ... SECURITY Protected Critical Infrastructure Information (PCII) Office Self- Assessment Questionnaire AGENCY... Information (PCII) Office Self-Assessment Questionnaire. OMB Number: 1670-NEW. Frequency: Annually. Affected... rules and requirements, and the specific needs of their accredited programs. These assessments...

  4. Questionnaire de Schwartz

    Directory of Open Access Journals (Sweden)

    Alejandro Castro Solano

    2006-01-01

    Full Text Available El estudio de los valores puede ser abordado desde múltiples perspectivas (filosófica, psicológica, sociológica, etc.. En Psicología, el análisis de las orientaciones valóricas de los individuos ha cobrado especial importancia a partir de las conceptualizaciones de Schwartz (1992, 2001 quien verificó una estructura de diez valores (Poder, Logro, Hedonismo, Estimulación, Autodirección, Universalismo, Benevolencia, Tradición, Conformidad y Seguridad, los cuales se organizan en cuatro bipolaridades (Autotrascendencia, Autopromoción, Conservación y Apertura al cambio en más de 60 países, dando soporte empírico a la clasificación de los valores humanos. Este estudio tiene como objetivos: (a adaptar y validar el Portrait Values Questionnaire (PVQ de Schwartz (1992, 2001 y (b verificar si existen diferencias individuales según dos contextos objeto de estudio (civil y militar y según sexo y edad. Se recogieron datos de una población argentina (N = 692 en tres contextos diferentes: (a población civil (n = 471, (b oficiales militares (n = 97 y (c cadetes (n = 124. El estudio permitió verificar parcialmente la estructura de los valores propuestos por el autor. La fiabilidad del PVQ resulta muy adecuada en los tres contextos estudiados. Asimismo se pudo verificar que los civiles están más orientados hacia el logro de objetivos personales (Autopromoción y la independencia para decir y hacer lo que uno quiere (Apertura al cambio, mientras que los militares están más orientados hacia los valores relacionados con el mantenimiento del orden social, la seguridad, la conservación de las tradiciones (Tradición y Conformidad. Por otra parte, los resultados mostraron que no existen diferencias en las orientaciones valóricas según sexo y edad.

  5. Design of a self-administered online food frequency questionnaire (FFQ to assess dietary intake among university population Diseño de un cuestionario de frecuencia de consumo de alimentos autoadministrado online para evaluar la ingesta dietetica de la población universitaria

    Directory of Open Access Journals (Sweden)

    R. González Carrascosa

    2011-12-01

    Full Text Available Objective: To introduce and describe a new tool called UPV-FFQ to evaluate dietary intake of the university population. The new tool consists principally in a selfadministered online food frequency questionnaire (FFQ. Materials and methods: The tool UPV-FFQ has been developed by means of web pages applying the technology ASP.NET 2.0 and using the database SQL Server 2005 as support. To develop the FFQ has been used as model the paper and pencil FFQ called "Dieta, salud y antropometría en la población universitaria". Results: The tool has three parts: (1 a homepage, (2 a general questionnaire and (3 a FFQ. The FFQ has a closed list of 84 food items commonly consumed in Valencia region. The respondents has to indicate the food items that they consume (2 possible options, the frequency of consumption (9 response options and the quantity consumed (7 response options. The UPV-FFQ has approximately 250 color photographs that represents to three portion sizes. The photographs are useful to help the respondents to choose the portion sizes that more adjusts to their habitual portions. The new tool provides quantitative information of the habitual intake of 31 nutritional parameters and provides qualitative information of the general questionnaire. A pilot study was done for a total of 57 respondents. The media time spend to fill in was 15 minutes. Conclusions: The pilot study concluded that the questionnaire was ease-of-use, low cost and time-effectiveness questionnaire. The format and the sequence of the questions were easily understood.Objetivo: Introducir y describir una nueva herramienta llamada UPV-FFQ para evaluar la ingesta dietética de la población universitaria. Esta nueva herramient consiste principalmente en un cuestionario de frecuencia de consumo de alimentos (CFCA autoadministrado online. Materiales and métodos: La herramienta UPV-FFQ se ha desarrollado a través de páginas web aplicando la tecnología ASP.NET 2.0 y usando la base de

  6. Questionnaire Designing for a Survey

    Directory of Open Access Journals (Sweden)

    S Roopa

    2012-01-01

    Full Text Available Questionnaires are frequently used in quantitative marketing research and social research. A questionnaire is a series of questions asked to individuals to obtain statistically useful information about a given topic. When properly constructed and responsibly administered, questionnaires become a vital instrument by which statements can be made about specific groups or people or entire populations. They are a valuable method of collecting a wide range of information from a large number of individuals, often referred to as respondents. Adequate questionnaire construction is critical to the success of a survey. Appropriate questions, correct ordering of questions, correct scaling, or good questionnaire format can make the survey worthwhile, as it may accurately reflect the views and opinions of the participants. A useful method for checking a questionnaire and making sure it is accurately capturing the intended information is to pretest among a smaller subset of target respondents.

  7. Paper to Electronic Questionnaires: Effects on Structured Questionnaire Forms

    Science.gov (United States)

    Trujillo, Anna C.

    2009-01-01

    With the use of computers, paper questionnaires are being replaced by electronic questionnaires. The formats of traditional paper questionnaires have been found to effect a subject's rating. Consequently, the transition from paper to electronic format can subtly change results. The research presented begins to determine how electronic questionnaire formats change subjective ratings. For formats where subjects used a flow chart to arrive at their rating, starting at the worst and middle ratings of the flow charts were the most accurate but subjects took slightly more time to arrive at their answers. Except for the electronic paper format, starting at the worst rating was the most preferred. The paper and electronic paper versions had the worst accuracy. Therefore, for flowchart type of questionnaires, flowcharts should start at the worst rating and work their way up to better ratings.

  8. Study on the perception of orthodontic treatment according to age: A questionnaire survey

    National Research Council Canada - National Science Library

    Yoonji Kim

    2017-01-01

    Objective: This questionnaire study aimed to estimate the overall frequencies of positive perception towards orthodontic treatment among adults categorized according to age, sex, and area of living...

  9. Validity and reproducibility of a food frequency questionnaire to assess dietary intake of women living in Mexico City Validación y reproducibilidad de un cuestionario de frecuencia de consumo para estimar la ingesta alimentaria en mujeres de la Ciudad de México

    Directory of Open Access Journals (Sweden)

    MAURICIO HERNÁNDEZ-AVILA

    1998-03-01

    Full Text Available Objective. To assess the reproducibility and validity of a 116 item semi-quantitative food frequency questionnaire (FFQ, designed to assess the relation between dietary intake and chronic diseases. Material and methods. To test the reproducibility of the FFQ questionnaire, the FFQ was administered twice to 134 women residing in Mexico City at an interval of approximately one year; to assess the validity we compared results obtained by the FFQs with those obtained by four 4-day 24-hour recalls at three month intervals. Validity and reproducibility were evaluated using regression analysis and Pearson and intraclass correlation coefficients of log-e and calorie-adjusted nutrient scores. Results. Mean values for intake of most nutrients assessed by the two food frequency questionnaires were similar. However, means for the 24-hr recall were significantly lower. Intraclass correlation coefficients for nutrient intakes, assessed by questionnaires, administered one year apart, ranged from 0.38 for cholesterol to 0.54 for crude fiber. Correlation coefficients between energy-adjusted nutrient intakes, measured by diet recalls, and the first FFQ ranged from 0.12 for polyunsaturated fatty acids to 0.67 for saturated fatty acids. Regression coefficients between 24-hr recall and FFQ,s were all significant were significant for all nutrients, except for polyunsaturated fat, folic acid, vitamin E and Zinc. Conclusions. These data indicate that this semi-quantitative FFQ is reproducible and provides a useful estimate by which to categorize individuals by level of past nutrient intake. However, its application outside Mexico City or in different age and gender populations will require additional modifications and validation efforts.Objetivo. Evaluar la reproducibilidad y validez de un cuestionario semicuantitativo de frecuencia de consumo de alimentos, para ser utilizado en estudios epidemiológicos sobre enfermedades crónicas. Material y métodos. Para evaluar

  10. Desenvolvimento de um questionário de freqüência alimentar para o estudo de dieta e doenças não transmissíveis Development of a food frequency questionnaire to study diet and non-communicable diseases in adult population

    Directory of Open Access Journals (Sweden)

    Renata Furlan-Viebig

    2004-08-01

    Full Text Available O objetivo do estudo foi desenvolver um questionário de freqüência alimentar com o intuito de investigar possíveis relações entre dieta e doenças não transmissíveis. Foram estudados 200 indivíduos adultos, atendidos no ambulatório geral de um hospital cardiológico de São Paulo, SP. A lista de 98 alimentos do questionário de freqüência alimentar foi construída a partir de recordatórios de 24 horas, estimando-se a contribuição percentual de cada alimento para o consumo de energia e de 21 nutrientes. O questionário desenvolvido representou 96,8% das calorias consumidas pela população estudada e ao menos 95% da ingestão dos nutrientes selecionados. Uma vez adaptado e validado, esse questionário poderá ser utilizado em estudos epidemiológicos em populações adultas.The study purpose was to develop a food frequency questionnaire (FFQ to investigate potential relationships between diet and non-communicable diseases. Two hundred adults were selected among attendees at the general outpatient clinic of Heart Institute of São Paulo, Brazil. A 98-food item list was created from 24-hour recalls, based on the weighted contribution of each food to energy intake and 21 nutrients. The questionnaire represented 96.8% of energy and at least 95% of the selected nutrients consumed by the study population. Once adapted and validated, this FFQ could be used in epidemiological studies in adult population.

  11. ASSESSMENT OF THE REPRODUCIBILITY AND VALIDITY OF A SIMPLE FOOD-FREQUENCY QUESTIONNAIRE USED IN DIETARY PATTERNS STUDIES%应用于膳食模式研究的简化膳食频率问卷信度和效度评价

    Institute of Scientific and Technical Information of China (English)

    高键; 费嘉庆; 姜立经; 姚文倩; 林冰; 郭红卫

    2011-01-01

    目的 评价应用于膳食模式研究的简化膳食频率问卷的信度和效度. 方法 对94名40~80岁上海市社区居民进行了两次简化膳食频率问卷(FFQ25)、一次完整膳食频率问卷(FFQ146)和一次3d24h膳食纪录(DR)的调查.FFQ25的重测信度以间隔2w的两次食物摄入量比较和相关系数进行评价.FFQ25的效度以FFQ25与FFQ146、FFQ25与DR的食物摄入量和膳食模式分析结果进行评价.结果 前后两次FFQ25的食物摄入量差别无统计学意义(P>0.05),相关系数在0.56~0.87 (P<0.01).FFQ25与FFQ146、DR食物摄入量的相关系数为0.31~0.72 (P<0.01),膳食模式因子负荷相关系数为0.54~0.77 (P<0.01).膳食模式因子积分的Bland-Altman分析表明FFQ25与FFQ146、FFQ25与DR的因子积分具有较好的一致性.结论 FFQ25具有较好的重测信度和膳食模式分析效度,且简单方便,可用于调查城市中老年人群的膳食模式研究.%Objective To evaluate the reproducibility and validity of a simple food-frequency questionnaire used in dietary patterns studies. Method The simple food-frequency questionnaire (FFQ25) was administered twice in 94 Shanghai community residents aged 40 to 80 years old for reproducibility assessment by comparing with the food intakes and the correlation coefficients. The dietary patterns analysis of FFQ25, whole food-frequency questionnaire(FFQ146) and 3d 24h dietary records (DR) were used for validity assessment. Results The difference of food intakes between two FFQ25 was not significant (P>0.05) and the correlation coefficients ranged from 0.56 to 0.87(P<0.01). The correlation coefficients of food intakes between FFQ25, FFQ146, and DR ranged from 0.31 to 0.72(.P<0.01) and the correlation coefficients of factor loadings ranged from 0.54 to 0.77(P<0.01). In these three dietary patterns, there were good agreements between the factor scores from FFQ25 and FFQ146, FFQ25 and DR by Bland-Altman analysis. Conclusion FFQ25 showed

  12. The validated sun exposure questionnaire

    DEFF Research Database (Denmark)

    Køster, B; Søndergaard, J; Nielsen, J B

    2017-01-01

    Few questionnaires used in monitoring sun-related behavior have been tested for validity. We established criteria validity of a developed questionnaire for monitoring population sun-related behavior. During May-August 2013, 664 Danes wore a personal electronic UV-dosimeter for one week...... that measured the outdoor time and dose of erythemal UVR exposure. In the following week, they answered a questionnaire on their sun-related behavior in the measurement week. Outdoor time measured by dosimetry correlated strongly with both outdoor time and the developed exposure scale measured....... The weekly sunburn fraction correlated strongly with the number of ambient sun hours (r=0.73, p

  13. Post-Cruise Questionnaire - Legacy

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Post-Cruise Questionnaire is a mandatory post trip legal document that observers fill out after every trip they have completed.

  14. Post-Cruise Questionnaire - Legacy

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Post-Cruise Questionnaire is a mandatory post trip legal document that observers fill out after every trip they have completed.

  15. Drinking among medical students: a questionnaire survey.

    Science.gov (United States)

    Collier, D J; Beales, I L

    1989-07-01

    To assess the prevalence of drinking among medical students a questionnaire on smoking, exercise, drinking, and weight was distributed among the students available. A total of 260 replies were received from an estimated available population of 350 students (134 men and 126 women). The mean alcohol consumption obtained by a quantity-frequency measure was 20.5 units/week for male students and 14.6 units/week for female students. Retrospective diary reports showed mean (SE) consumptions of 18 (2) units/week for men (n = 134) and 11 (1) units/week for women (n = 126). Consumption among the men closely matched consumption among men matched for age in the general population. Women, however, drank more than women matched for age. Male and female medical students exceeded the suggested maximum for their sex in equal proportions. Quantity-frequency data showed that 31 (23%) men drank over 35 units/week and 28 (22%) women drank over 21 units/week. Of the 59 students exceeding these limits, 51 responded positively to a standard screening questionnaire for alcohol abuse. Forty students reported that they might have a drinking problem, and 138 reported that alcohol had affected their academic performance at some time; 17 of these were affected frequently. The students suggested sensible maximum consumption figures for health education. Smoking was associated with heavy drinking, especially among the women. These results suggest that some medical students are compromising their future health and their academic performance through excessive drinking.

  16. [VARIABLES USED IN QUESTIONNAIRES ABOUT ERGONUTRITIONALS SUPPLEMENTS INTAKE].

    Science.gov (United States)

    Villanova Colmenero, Máximo; Martínez-Sanz, José Miguel; Norte Navarro, Aurora; Ortíz-Moncada, Rocío; Hurtado, José Antonio; Baladia, Eduard

    2015-08-01

    nutritional supplements intake is increasing during the recent years both in Spain and in the rest of the world. Questionnaires that estimate the intake and supplement use have methodological limitations. The purpose of this study is to describe used indicators in questionnaires that estimate nutritional supplements intake among athletes so facilitate understanding of these limitations. a literature review of variables used within questionnaires to estimate consumption of nutritional supplements among athletes. We conducted a structured research in PubMed database and through snow ball strategy. Search equation: "Questionnaire" AND "Supplementation" AND "Athletes". published in any country in English or Spanish, containing questionnaire or indicators can be deducted from the items, to estimate the intake and use of nutritional supplements and should be targeted to athletes training in order to compete at any level. We performed a descriptive analysis. 21 above the 122 identified studies met the inclusion criteria. Sociodemographic factors, sport and training frequency, athlete population, reasons/motives for use and consumption, sources of information and list of supplements and frequency are the found indicators for estimating intake of supplements. there are great heterogeneity in terms of the proposed indicators by the authors at the questionnaires and intake estimation using nutritional supplements, standardization of the methodology for the development questionnaires to be necessary and proposing the classification of the Australian Institute of Sport as a reference. Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

  17. ACADEMIC TRAINING LECTURES-QUESTIONNAIRE

    CERN Multimedia

    Françoise Benz

    2004-01-01

    ACADEMIC TRAINING Françoise Benz tel. 73127 academic.training@cern.ch SUGGEST AND WIN! Its time to plan the 2004-2005 lecture series. From today until March 19 you have the chance to give your contribution to planning for next year's Academic Training Lecture Series. At the web site: http://cern.ch/Academic.Training/questionnaire you will find questionnaires proposing topics in high energy physics, applied physics and science and society. Answering the questionnaire will help ensure that the selected topics are as close as possible to your interests. In particular requests and comments from students will be much appreciated. To encourage your contribution, the AT Committee will reward one lucky winner with a small prize, a 50 CHF coupon for a book purchase at the CERN bookshop.

  18. Avaliação da lista de alimentos e porções alimentares de Questionário Quantitativo de Freqüência Alimentar em população adulta Assessment of the food list and serving size of a Food Frequency Questionnaire in an adult population

    Directory of Open Access Journals (Sweden)

    Luciana Yuki Tomita

    2002-12-01

    Full Text Available O presente estudo avaliou a adequação da lista de alimentos e das porções alimentares de Questionário Quantitativo de Freqüência Alimentar (QQFA, entre os participantes de um estudo de casos e controles na cidade de São Paulo, Brasil. O QQFA foi aplicado juntamente com um inquérito recordatório de consumo alimentar de 24 horas (IR24, em amostra aleatória de 200 indivíduos (101 homens, 99 mulheres; idade entre 35 e 69 anos. O tamanho das porções alimentares do QQFA foi classificado em pequeno (P, médio (M e grande (G de acordo com distribuição porcentual dos pesos correspondentes às medidas caseiras referidas no IR24 (percentis 25, 50 e 75, respectivamente. A lista de alimentos do QQFA foi analisada segundo a contribuição porcentual de cada item alimentar em relação ao consumo total de nutrientes estimado pelo IR24. Não houve diferença estatisticamente significante entre as médias de consumo estimadas pelo QQFA e pelo IR24 para gordura total, ácidos graxos saturados, colesterol, fibra total, vitamina B6 e folato (teste t pareado; pThis study examined both the food list and portion size values from a Food Frequency Questionnaire (FFQ among participants in a case-control study in São Paulo, Brazil. Two hundred adult respondents to a case-control study were randomly selected (101 men and 99 women; age range: 35-69 years. FFQ food items were examined on the basis of their contribution to total population nutrient intake estimated by 24-hour dietary recall (1-DR. We examined the frequency distribution of equivalent-gram weights of each selected food from the 1-DR and identified the portion sizes as small, medium, and large in the distribution (percentiles 25, 50, and 75, respectively. The FFQ provided close estimation of total fat, saturated fatty acids, cholesterol, total fiber, vitamin B6, and folic acid compared to the 1-DR (paired t-test; p < 0.05. The FFQ food list covered the study population's main dietary nutrient

  19. Parent Questionnaire on Bilingual Education.

    Science.gov (United States)

    Vineland School District, NJ.

    This document provides a questionnaire to be used to determine the attitudes and influence of parents who have children in bilingual education programs. Thirty seven questions are listed, covering such factors as family background, language usage at home, and aspirations for the education of the children. Techniques for administering the…

  20. Diet History Questionnaire: Canadian Version

    Science.gov (United States)

    The Diet History Questionnaire (DHQ) and the DHQ nutrient database were modified for use in Canada through the collaborative efforts of Dr. Amy Subar and staff at the Risk Factor Monitoring and Methods Branch, and Dr. Ilona Csizmadi and colleagues in the Division of Population Health and Information at the Alberta Cancer Board in Canada.

  1. Questionnaire Research in Higher Education.

    Science.gov (United States)

    Inoue, Yukiko

    The objective of this paper is to discuss the survey as a research method based on three questionnaire surveys developed and administered in educational settings: (1) a survey exploring the status aspiration and gender awareness of undergraduate women completed by 62 respondents; (2) a survey of computer-assisted instruction completed by 111…

  2. Manual Health and Labour Questionnaire

    NARCIS (Netherlands)

    L. van Hakkaart-van Roijen (Leona); M.L.E. Essink-Bot (Marie-Louise)

    2000-01-01

    textabstractWhen the indirect costs form a part of an economical evaluation, a standardised method for measuring production losses, as a result of illness, is required. Standardisation will increase the comparability and transparency of the results. The Health and Labour Questionnaire (HLQ) is

  3. Desenvolvimento de Questionário de Frequência Alimentar para adultos em amostra de base populacional de Cuiabá, Região Centro-Oeste do Brasil Development of a Food Frequency Questionnaire for adults in a population-based sample in Cuiabá, Mid-Western Region of Brazil

    Directory of Open Access Journals (Sweden)

    Márcia Gonçalves Ferreira

    2010-09-01

    Full Text Available OBJETIVO: Descrever a construção de um Questionário de Frequência Alimentar (QFA para utilização em estudos que visem à obtenção de dados sobre o consumo alimentar de adultos de Cuiabá, MT. MÉTODOS: Um inquérito recordatório de 24 horas (R24h foi aplicado em uma subamostra de 104 indivíduos, de ambos os sexos, selecionados aleatoriamente a partir de uma amostra probabilística de estudo de base populacional. Considerando-se frequência de citação e contribuição para o consumo de energia e nutrientes dos alimentos citados nos R24h foram selecionados 81 itens alimentares e as respectivas porções de referência, que foram aquelas mais frequentemente relatadas nos R24h. A lista do QFA foi gerada com oito categorias de resposta para a frequência de consumo. RESULTADOS: Os itens alimentares citados por mais de 50% da amostra foram o açúcar, café, feijão, arroz, carne, pão e refrigerante, sendo que os quatro últimos também foram os que mais contribuíram para o consumo energético. Não se observaram diferenças entre homens e mulheres nos alimentos que mais contribuíram para a ingestão de macro e micronutrientes. CONCLUSÃO: O QFA foi desenvolvido com a inclusão dos itens alimentares de maior relevância para a dieta da população adulta de Cuiabá, Mato Grosso. Comprovadas sua validade e reprodutibilidade, este instrumento será útil em investigações epidemiológicas e clínicas sobre o possível papel da dieta no desenvolvimento de enfermidades nessa população.OBJECTIVE: To describe the design of a Food Frequency Questionnaire (FFQ to be used in studies on food intake of adults from Cuiabá, Mato Grosso State, Brazil. METHODS: A 24-hour dietary recall (24hR was applied to a sub-sample of 104 men and women, randomly selected from a random population-based study sample. Based on the frequency of report and on the contribution to the intake of energy and nutrients in the 24hR, 81 food items and respective reference

  4. A second national questionnaire survey of TMA.

    Science.gov (United States)

    Ito-Habe, Naomi; Wada, Hideo; Matsumoto, Masanori; Fujimura, Yoshihiro; Murata, Mitsuru; Izuno, Takashi; Sugita, Minoru; Ikeda, Yasuo

    2010-07-01

    A second questionnaire survey of Japanese patients with thrombotic microangiopathy (TMA) was carried out to investigate the frequency, laboratory abnormalities and outcome in 2004 and 2005. The first and second surveys evaluated 397 patients including 19 with familial TMA and 378 with acquired TMA. The patients with acquired TMA included 165 with Escherichia coli O-157 infection-related TMA (O-157 TMA), 70 with ADAMTS13-related TMA (ADAMTS13 TMA) and 38 with other types of TMA (other TMA). The rate of ADAMTS13 TMA was significantly higher in patients with collagen diseases than in patients with all other underlying diseases (p TMA included plasma exchange (PE), steroids, antiplatelet agents, and anticoagulants, PE was carried out in 91.4% of patients with ADAMTS13 TMA, 68.4% of patients with other TMA and 12.7% of patients with O-157 TMA. The efficacy of PE and steroid therapy tended to be higher in patients with ADAMTS13 TMA than in those with other TMA. The complete remission rate was the highest and the mortality rate was the lowest in the patients with O-157 TMA. The mortality rate tended to be lower in patients with ADAMTS13 TMA than in those with other TMA. However, not all of the patients in our study were examined for ADAMTS13 at the time that this questionnaire survey was conducted.

  5. Evaluating Multilingual Questionnaires: A Sociolinguistic Perspective

    National Research Council Canada - National Science Library

    Yuling Pan; Marissa Fond

    2014-01-01

    .... Census questionnaire in five languages and the American Community Survey questionnaire in two languages, we developed a coding scheme guided by sociolinguistic approaches to language and culture...

  6. The Otitis Media-6 questionnaire

    DEFF Research Database (Denmark)

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

    2013-01-01

    The Otitis Media-6 questionnaire (OM-6) is the most frequently used instrument to measure health related quality of life in children with otitis media. The main objectives of this study are 1) to translate and cross-culturally adapt the OM-6 into Danish, and 2) to assess important psychometric...... properties including structural validity and interpretability of the OM-6 in a Danish population of children suffering from otitis media....

  7. Development and validation of a food frequency questionnaire (FFQ-Porto Alegre for adolescent, adult and elderly populations from Southern Brazil Desenvolvimento e validação de um questionário de freqüência alimentar (QFA-Porto Alegre para a população de adolescentes, adultos e idosos do Sul do Brasil

    Directory of Open Access Journals (Sweden)

    Ruth Liane Henn

    2010-11-01

    Full Text Available This study assessed the validity of a food frequency questionnaire (FFQ-Porto Alegre, covering 135 food items, in comparison with the average of two consecutive 24-hour dietary recall questionnaires for adolescents, adults, and elderly who were randomly selected from a population-based survey. The Pearson correlation coefficients and cross-classification by quartiles of intake were used. The nutrients were log transformed and energy adjusted. The mean of adjusted de-attenuated correlation coefficient for adolescents was 0.44 and ranged from 0.18 (zinc to 0.69 (folate and for adult and elderly participants they were, respectively, 0.42, ranging from 0.16 (iron to 0.73 (energy and 0.52, ranging from 0.25 (vitamin E to 0.84 (energy. The average classification percentage into the same or adjacent quartile for the two methods was 74.6% for adolescents, 74.9% for adults, and 81.2% for the elderly population. The FFQ showed fair relative validity for adolescents and adults, and may be used to study the dietary determinants of obesity and non-transmissible diseases in epidemiological surveys.Esse estudo avaliou a validade relativa de questionário de freqüência alimentar (QFA-Porto Alegre, com 135 itens, comparando-o à média de dois recordatórios de 24 horas, entre adolescentes, adultos e indivíduos idosos selecionados aleatoriamente da população. Utilizou-se classificação em quartis de ingestão pelos dois métodos e coeficiente de correlação de Pearson para analisar nutrientes transformados em logaritmo natural e ajustados pela energia. O coeficiente de correlação ajustado de-atenuado médio entre adolescentes foi 0,44 e variou de 0,18 (zinco a 0,69 (folato, em adultos e idosos, respectivamente, foi 0,42 variando de 0,16 (ferro a 0,73 (energia e 0,52 variando de 0,25 (vitamina E a 0,84 (energia. O percentual médio de classificação no mesmo quartil ou adjacente pelos dois métodos foi 74,6% para adolescentes, 74,9% para adultos, e 81

  8. Inconsistent Student Responses in TIMSS Questionnaire Items on Mathematics Lessons

    Directory of Open Access Journals (Sweden)

    Selda Yıldırım

    2009-12-01

    Full Text Available This study investigated consistency among Turkish students’ responses to TIMSS 2007 questionnaire items on frequency of certain activities in mathematics classrooms. In Turkey, 4476 students from 143 schools participated in the study. Analyses have revealed the existence of inconsistencies in student responses as indicated by high proportion of within-class variance components. That is, students in same class specified fluctuating frequencies to certain classroom activities, showing that some factors had an affect on perception of individuals. Further analyses showed that students at different levels of mathematics achievement reported differently on frequency of classroom activities, and precise items were answered more consistently compared to items containing vague terms. Using factor scores instead of individual item responses contributed consistency of responses within classes but only to a small extent. Based on the findings, this study also provided implications for questionnaire design.

  9. Desenvolvimento de um Questionário Quantitativo de Freqüência Alimentar (QQFA para um estudo caso-controle de dieta e câncer de mama em João Pessoa - PB Development of a Quantitative Food Frequency Questionnaire (QFFQ for a breast cancer and diet case-control study in Joao Pessoa -PB

    Directory of Open Access Journals (Sweden)

    Flávia Emília Leite de Lima

    2003-12-01

    Full Text Available O presente trabalho descreve o desenvolvimento de um Questionário Quantitativo de Freqüência Alimentar (QQFA para utilização em estudo caso-controle sobre dieta e câncer de mama em João Pessoa. Um inquérito recordatório de 24 horas (IR24h foi aplicado em 100 mulheres, entre 20 e 75 anos, que se utilizam de serviços públicos de saúde. Foram identificados 217 alimentos, agrupados em itens alimentares, segundo semelhanças de valor nutritivo por porção alimentar e/ou fontes dos nutrientes de interesse (energia, carboidratos, proteínas, lipídios, vitamina C e retinol. Para a inclusão desses itens no QQFA, calculou-se a contribuição percentual de cada um desses nutrientes, utilizando-se a fórmula de proporção ponderada de Block, e, para sua inclusão, os alimentos precisariam estar perfazendo até 90% de contribuição em algum dos nutrientes, ser fonte de um dos nutrientes em estudo ou pertencer ao hábito da população. O QQFA constou de 68 itens alimentares. Para o cálculo do tamanho de porção, os pesos correspondentes às medidas caseiras dos IR24H foram divididos em quartis, com a porção de referência (média correspondendo ao P50 e as demais (P25,P75 e P100 referindo-se aos tamanhos pequeno, grande e extra grande, respectivamente.This paper describes the development of a Quantitative Food Frequency Questionnaire (QFFQ to be applied in a case-control study on diet and breast cancer in João Pessoa. A 24-hour Dietary Recall (24hDR was obtained from 100 women, aged 20-75 years, from distinct socio-economic strata, using public health services. Foods were grouped in food items, according to similarity of nutritional value per food portion and/or sources of food nutrients (energy, carbohydrates, lipids, protein, vitamin C and retinol. We calculated the percentual contribution of each nutrient. Utilizing Block's formula , and criteria for grouping food itens included contribution of 90% for any nutrient, to be source of

  10. 19 CFR 357.105 - Questionnaires.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Questionnaires. 357.105 Section 357.105 Customs... Questionnaires. For reviews conducted under section 106(b)(2), the Secretary normally will send questionnaires to potential producers/suppliers of the product to determine whether it is in short supply. Questionnaires...

  11. Likert and Guttman scaling of visual function rating scale questionnaires.

    Science.gov (United States)

    Massof, Robert W

    2004-12-01

    To test the assumptions underlying Likert scoring of visual function questionnaires. Questionnaires were administered to 284 low-vision subjects by telephone. Each subject was administered two of four questionnaires: ADVS, NEI VFQ-25 plus supplement, expanded VAQ, and VF-14. Z-scores for cumulative frequency of using each rating category across subjects are not linear with rating category rank and items are not the same difficulty for any of the questionnaires. Guttmann coefficients of reproducibility ranged from 57% for the ADVS to 51% for the NEI VFQ-25. Cronbach alphas ranged from 0.92 for the VF-14 to 0.96 for the NEI VFQ; however, inter-item consistency coefficients ranged from 0.24 for the VAQ to 0.45 for the NEI VFQ. Likert scores were significantly correlated between instruments, ranging from 0.66 for NEI VFQ vs ADVS to 0.90 for the VF-14 vs. ADVS. The rating scales of all four questionnaires fail to satisfy Likert's assumptions. Also, ratings are probabilistic, rather than deterministic, which means that the Likert model is not valid for these questionnaires. However, Likert scores for all four instruments are intercorrelated, suggesting that they are monotonic with the latent subject trait distributed in the low vision sample.

  12. Numeracy, frequency, and Bayesian reasoning

    Directory of Open Access Journals (Sweden)

    Gretchen B. Chapman

    2009-02-01

    Full Text Available Previous research has demonstrated that Bayesian reasoning performance is improved if uncertainty information is presented as natural frequencies rather than single-event probabilities. A questionnaire study of 342 college students replicated this effect but also found that the performance-boosting benefits of the natural frequency presentation occurred primarily for participants who scored high in numeracy. This finding suggests that even comprehension and manipulation of natural frequencies requires a certain threshold of numeracy abilities, and that the beneficial effects of natural frequency presentation may not be as general as previously believed.

  13. The well-being questionnaire

    DEFF Research Database (Denmark)

    Pouwer, F; Snoek, Frank J; Van Der Ploeg, Henk M

    2000-01-01

    analyses were conducted. Group B (N = 736) was split up into four subgroups of male or female patients with type 1 or type 2 diabetes. In these subgroups, confirmatory factor analyses were employed to test the model(s) developed in group A and the two models described in the literature (four-factor model......BACKGROUND: The Well-being Questionnaire (W-BQ) has been designed to measure psychological well-being in people with a chronic somatic illness and is recommended by the World Health Organization for widespread use. However, studies into the factor structure of this instrument are still limited....... This factor solution was stable across gender, type of diabetes and level of education. CONCLUSIONS: The best description of the factor structure of the Dutch translation of the W-BQ was given by a three-factor solution with 12 items (W-BQ12), measuring positive well-being (four items), negative well...

  14. Validation of a food frequency questionnaire for children and adolescents aged 4 to 11 years living in Salvador, Bahia La validación de un cuestionario de frecuencia alimentaria para niños y adolescentes de 4 a 11 años que viven en Salvador, Bahía

    Directory of Open Access Journals (Sweden)

    S. M. A. Matos

    2012-08-01

    Full Text Available Objective: To assess the validity of a food frequency questionnaire (FFQ by applying it to children and adolescents living in Salvador, Bahia. Methods: The validity of this FFQ with 98 food items was investigated among 108 children and adolescents who were selected from a sample of 1445 that had been planned for a study on the risk factors for asthma and other allergic diseases. The adults responsible for these children and adolescents gave responses for a 24-hour recall (R24h and an FFQ. The average energy and nutrient values from the FFQ were compared with those from the R24h by means of the paired t test and Pearson correlation coefficients. The concordance was evaluated using the Bland-Altman method and kappa statistics. Results: The energy and nutrient intake estimated using the FFQ was significantly higher than what was obtained using the R24h. The correlation coefficients adjusted for energy were statistically significant for protein, fat, vitamin C and zinc. The weighted kappa values ranged from 0.06 for vitamin A (p = 0.24 to 0.34 for energy (p Objetivo: Evaluar la validez de un cuestionario de frecuencia de alimentos (QFA aplicándolo a niños y adolescentes residentes en Salvador, Bahía. Métodos: Se investigó la validez de este QFA con 98 ítems de alimentos en 108 niños y adolescentes seleccionados a partir de una muestra de 1.445 planificados para un estudio sobre los factores de riesgo para asma y otras enfermedades alérgicas. Los adultos responsables de estos niños y adolescentes proporcionaron respuestas para un recuerdo de 24 horas (R24h y el QFA. Los valores promedio de energía y nutrientes procedentes del QFA se compararon con los del R24h mediante una prueba t de student y los coeficientes de correlación de Pearson. La concordancia se evaluó usando el método de Bland-Altman y el estadístico kappa. Resultados: El consumo estimado de energía y nutrientes usando el QFA fue significativamente superior que el obtenido

  15. Validade de um questionário quantitativo de freqüência alimentar desenvolvido para população feminina no nordeste do Brasil Validity of a quantitative food frequency questionnaire developed for women in the Northeast of Brazil

    Directory of Open Access Journals (Sweden)

    Flávia Emília Leite de Lima

    2007-12-01

    Full Text Available OBJETIVO: Verificar a validade relativa de um questionário quantitativo de freqüência alimentar (QQFA para ser utilizado em estudo caso-controle sobre fatores dietéticos e câncer de mama no Estado da Paraíba. MÉTODOS: A validade relativa do QQFA, com 68 itens alimentares, foi investigada em uma população de 38 mulheres, entre 25 e 80 anos, potenciais controles para o estudo principal. As participantes responderam a quatro recordatórios de 24horas (R24h, administrados por entrevistador, por telefone, em um período de um ano, e um QQFA ao final do estudo. Os valores médios de energia e nutrientes do QQFA foram comparados com a média dos quatro R24h através do teste-t emparelhado. Os coeficientes de correlação de Pearson entre a média dos nutrientes antes e após o ajuste por energia nos dois métodos foram calculados e sua correção foi realizada pela variabilidade intrapessoal (coeficiente de correlação deatenuado. RESULTADOS: A validade relativa foi verificada para energia, carboidratos, lipídios, proteínas, vitamina A e Vitamina C. Analisando os coeficientes de correlação bruta, observaram-se valores adequados de energia (r=0,53 e lipídios (r=0,40 e baixo para vitamina C (r=0,08. Quando os coeficientes foram corrigidos pela variabilidade intraindividual, todos os nutrientes tiveram seus coeficientes consideravelmente aumentados (r= 0,36 0,67. CONCLUSÃO: Os resultados sugerem que o QQFA apresentou uma validade satisfatória para ser utilizado em estudos de dieta e câncer em mulheres na Paraíba. Contudo, para seu uso em áreas geográficas ou populações distintas, procedimentos de calibração do questionário devem ser realizados anteriormente.OBJECTIVE: To assess the relative validity of a Quantitative Food Frequency Questionnaire (QFFQ for a case-control study on dietary factors and breast cancer in the state of Paraíba, Northeastern Brazil. METHODS: The validity of a 68-item QFFQ was investigated in 38 women

  16. Assessing the validity of a food frequency questionnaire among low-income women in São Paulo, southeastern Brazil Avaliação de validade de um questionário de freqüência alimentar em mulheres de baixa renda residentes em São Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    Marly Augusto Cardoso

    2010-11-01

    Full Text Available This study describes the validity of a food frequency questionnaire (FFQ in 93 low-income women (20-65 years, participating in a case-control study in São Paulo, Brazil. Two FFQ (FFQ1 and FFQ2, 12 months apart and three 24-hour dietary recalls (24hR were conducted between 2003 and 2004 to estimate dietary intake during the past year. The Pearson correlation coefficients (crude, energy-adjusted and de-attenuated were used for comparisons between FFQ and 24hR. The agreement between the methods was further examined by the Bland-Altman analysis. For the assessment of long-term reliability, the energy-adjusted intra-class correlation coefficients were mostly around 0.40, but higher for vitamin A and folate (0.50-0.56. Energy-adjusted, attenuation-corrected Pearson validity correlations between FFQ and DR ranged from 0.30-0.54 for macronutrients to 0.20-0.48 for micronutrients, with higher value for calcium (0.75. There were small proportions of grossly misclassified nutrient intakes, while Bland-Altman plots indicated that the FFQ is accurate in assessing nutrient intake at a group level.Este estudo compara a validade de questionário de freqüência alimentar (QFA em 93 mulheres participantes de estudo caso-controle em São Paulo, Brasil. Dois QFA (12 meses de intervalo entre QFA1 e QFA2 e 3 recordatórios de 24 horas (R24h foram obtidos entre 2003 e 2004. Coeficientes de correlação de Pearson (brutos, ajustados pelas calorias totais e com correção intra-indivíduos foram utilizados na comparação entre os métodos. A concordância entre QFA e R24h foi avaliada pela análise de Bland-Altman. Na avaliação de reprodutibilidade em longo prazo, coeficientes de correlação intraclasse ajustados pelas calorias totais foram próximos de 0,40, com valores maiores para vitamina A e folato (0,50-0,56. Coeficientes de correlação de Pearson ajustados pelas calorias totais e de-atenuados variaram de 0,30-0,54 para macronutrientes a 0,20-0,48 para

  17. Relative validity of a food-frequency questionnaire developed to assess food intake of schoolchildren living in the Brazilian Western Amazon Validade relativa de um questionário de frequência alimentar desenvolvido para avaliar a ingestão por escolares da Amazônia Ocidental Brasileira

    Directory of Open Access Journals (Sweden)

    Fernanda Baeza Scagliusi

    2011-11-01

    Full Text Available This study aimed to assess the relative validity of a food frequency questionnaire (FFQ developed to assess food intake of schoolchildren from the Brazilian Western Amazon. The dietary intakes of 61 schoolchildren, aged between six and nine 9 years, were measured using two 24-hour dietary recalls and one FFQ, conducted with the children's, mother or guardians. Validity of the FFQ compared to the mean of the two dietary recalls was assessed using Pearson's correlation coefficient adjusted for attenuation and energy intake, Bland & Altman plots and evaluation of agreement levels between the two assessment methods. Energy-adjusted and deattenuated correlation coefficients ranged from -0.03 for vitamin C, to 0.93 for calcium. The mean coefficient was 0.46. The mean proportion of subjects classified within one quintile by the two methods was 66%. The Bland & Altman plots indicated good agreement for almost all nutrients, with a mean limit of agreement of 108%. These results indicate that, although there was a lack of accuracy for certain nutrients, such as vitamins A and C, the FFQ ensures reliable estimates of intake of most nutrients.Objetivou-se avaliar a validade relativa de um questionário de frequência alimentar (QFA desenvolvido para analisar a ingestão alimentar por escolares da Amazônia Ocidental. A ingestão de 61 escolares, com idades entre 6 e 9 anos, foi avaliada por dois recordatórios alimentares de 24 horas e um QFA, aplicados às mães ou cuidadores da criança. A validade do QFA, comparado à média dos recordatórios, foi avaliada pelos coeficientes de correlação de Pearson ajustados pela atenuação e ingestão energética, pelos gráficos de Bland & Altman e pela concordância de categorização entre os métodos. Os coeficientes de correlação, deatenuados e ajustados, variaram de -0,03 para vitamina C a 0,93 para cálcio. O coeficiente médio foi de 0,46. A proporção média de sujeitos classificados dentro de um

  18. Paper and pencil vs online self-administered food frequency questionnaire (FFQ applied to university population: a pilot study Cuestionario de frecuencia de consumo de alimentos autoadministrado en formato papel vs online aplicado a la población universitaria: un estudio piloto

    Directory of Open Access Journals (Sweden)

    R. González Carrascosa

    2011-12-01

    Full Text Available Objective: To test the reliability of dietary intake data measured with an online food frequency questionnaires (FFQ applied to a university population by comparing the results with those from a paper and pencil version. Materials and methods: A total of 50 students were recruited from the second-year Food Technology course at the Universitat Politècnica de València (Comunidad Valenciana, Spain in the academic year 2008-2009. The students were between the ages of 20-32. The participants completed both presentation modes of the FFQ (paper and pencil and online in a cross-over study with a time interval of 3-week. To study the effect of ordering of the questionnaires, participants were randomly assigned to group A (paper and pencil FFQ first and group B (online FFQ first. Both self-administered semi-quantitative presentations of the FFQ included 84 food items divided into six groups (dairy products; eggs, meat and fish; vegetables, legumes and fruits; bread, cereals and similar; oils, fats and sweets; beverages and pre-cooked. Participants were asked how frequently and how much each food item they had consumed in the previous year. Results: The response rate was 78% (39 students, 23% men and 77% women. For the total sample, the median dietary intakes were higher for the paper and pencil FFQ than the online version for energy (2,077 vs. 1,635 kcal/day, proteins (96 vs. 88 g/day, carbohydrates (272 vs. 211 g/day, and fat (70 vs. 58 g/day, respectively. These differences were statistically significant. However, there were not significant differences between the two presentations when the consumption by groups of food was calculated, except for "beverages and pre-cooked" group. Conclusions: The pilot testing showed that this online FFQ is a useful tool for estimating the intake of food groups in this university population. On the other hand, the differences found in the results of the absolute quantities of energy and nutrients intakes were not

  19. Questionnaires for assessment of female sexual dysfunction

    DEFF Research Database (Denmark)

    Giraldi, Annamaria; Rellini, Alessandra; Pfaus, James G;

    2011-01-01

    There are many methods to evaluate female sexual function and dysfunction (FSD) in clinical and research settings, including questionnaires, structured interviews, and detailed case histories. Of these, questionnaires have become an easy first choice to screen individuals into different categories...

  20. Database of Standardized Questionnaires About Walking & Bicycling

    Science.gov (United States)

    This database contains questionnaire items and a list of validation studies for standardized items related to walking and biking. The items come from multiple national and international physical activity questionnaires.

  1. Why does epidemiology need better questionnaires?

    DEFF Research Database (Denmark)

    Tong, S.; Ring, I.; Olsen, Jørn

    2003-01-01

    The authors argue for the use of validated questionnaires whenever possible to improve the quality of epidemiological research.......The authors argue for the use of validated questionnaires whenever possible to improve the quality of epidemiological research....

  2. 运用半定量食物频率调查法评估拉萨农村藏族婴幼儿母亲的膳食结构%Study on the dietary pattern assessed with semi-quantitative food frequency questionnaire among rural Tibetan women with children younger than 2 years in Lhasa city

    Institute of Scientific and Technical Information of China (English)

    党少农; 王振杰; 康轶君; 邢远; 颜虹

    2010-01-01

    目的 了解2岁以下藏族农村儿童的母亲膳食结构特点.方法 采用半定量食物频率问卷于2008年对拉萨农村2岁以下藏族儿童的母亲进行横断面调查.结果 共调查386名农村2岁以下藏族儿童母亲,平均年龄28.5岁,平均受教育年限为4.6年.其家庭人均消费植物油25.9 g/d,显著低于全国平均水平(P<0.01),动物性油脂中酥油、糖和盐的人均每日消费量分别为27.8 g、12.9g和14.8 g,显著高于全国平均水平(P<0.01).共调查91种食物.其中22种食物的中位摄入频率为每周一次及以上.因子分析提取三个主要因子,反映三种膳食结构类型,第一因子是植物性膳食结构,其特点是以蔬菜、谷类、水果为主,辅以少量肉类、奶和豆制品,是该人群的主导膳食;第二因子是藏族特色膳食,主要摄入以糌粑为代表的富有藏族特色的食物,辅以简单蔬菜;第三因子是以肉类和奶制品为主的膳食,富有藏族特色.妇女每日平均摄入能量2097.02 kcal,达到膳食营养素参考摄入量(RNI)的91.2%,蛋白质的摄入量只达到RNI的82%,维生素A摄入量只相当于RNI的34.7%,钙、铁和锌的摄入量相当于RNI的64.6%、174.1%和150.7%.65%的能量来自谷类,动物性食物只提供了7.4%的能量和15.5%的蛋白质,57.6%的铁来自糌粑.结论 拉萨农村2岁以下藏族儿童母亲的膳食以植物性食物为主,膳食结构单调,存在蛋白质、能量及微营养素摄入不足.%Objective To explore the dietary pattern of rural Tibetan women with children under 2 years of age.Methods A cross-sectional survey on dietary pattern together with a semiquantitative food frequency questionnaire was conducted among Tibetan women in rural Lhasa in 2008.Results 386 women were investigated with the average age as 28.5 years old and average schooling-years as 4.6.For each member in the woman's family,daily intake of vegetable oil was 25.9 g on average.Daily intake of butter

  3. Surveys and questionnaires in nursing research.

    Science.gov (United States)

    Timmins, Fiona

    2015-06-17

    Surveys and questionnaires are often used in nursing research to elicit the views of large groups of people to develop the nursing knowledge base. This article provides an overview of survey and questionnaire use in nursing research, clarifies the place of the questionnaire as a data collection tool in quantitative research design and provides information and advice about best practice in the development of quantitative surveys and questionnaires.

  4. The Stages of Mailed Questionnaire Returning Behavior.

    Science.gov (United States)

    Lockhart, Daniel C.

    1984-01-01

    Six stages are hypothesized that define the behavior of returning mailed questionnaires: receiving the questionnaire, opening the mail, forming an overall impression, answering the questions, returning the questionnaire, and dealing with nonrespondents. The researcher must provide incentives at each stage if potential respondents are to complete a…

  5. Frequency standards

    CERN Document Server

    Riehle, Fritz

    2006-01-01

    Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency.This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards

  6. Frequency synthesiser

    NARCIS (Netherlands)

    Drago, Salvatore; Sebastiano, Fabio; Leenaerts, Dominicus Martinus Wilhelmus; Breems, Lucien Johannes; Nauta, Bram

    2016-01-01

    A low power frequency synthesiser circuit (30) for a radio transceiver, the synthesiser circuit comprising: a digital controlled oscillator configured to generate an output signal having a frequency controlled by an input digital control word (DCW); a feedback loop connected between an output and an

  7. A catalog of biases in questionnaires.

    Science.gov (United States)

    Choi, Bernard C K; Pak, Anita W P

    2005-01-01

    Bias in questionnaires is an important issue in public health research. To collect the most accurate data from respondents, investigators must understand and be able to prevent or at least minimize bias in the design of their questionnaires. This paper identifies and categorizes 48 types of bias in questionnaires based on a review of the literature and offers an example of each type. The types are categorized according to three main sources of bias: the way a question is designed, the way the questionnaire as a whole is designed, and how the questionnaire is administered. This paper is intended to help investigators in public health understand the mechanism and dynamics of problems in questionnaire design and to provide a checklist for identifying potential bias in a questionnaire before it is administered.

  8. Reprodutibilidade e validade relativa do Questionário de Frequência Alimentar do ELSA-Brasil Reproducibilidad y validez relativa del Cuestionario de Frecuencia Alimentaria del ELSA-Brasil Reproducibility and relative validity of the Food Frequency Questionnaire used in the ELSA-Brasil

    Directory of Open Access Journals (Sweden)

    Lívia Manato

    2013-02-01

    , respectivamente. Concordancias exactas y adyacentes entre métodos variaron de un 82,9% en el caso de la vitamina E a un 89% en el lípido y calcio (media = 86%. Se encontró una discordancia media de un 13,6%. Se concluye que el QFA ELSA-Brasil presenta una confiabilidad satisfactoria para todos los nutrientes y validez relativa razonable en los casos la energía, macronutrientes, calcio, potasio y vitaminas E y C.This study evaluated the reproducibility and relative validity of the Food Frequency Questionnaire (FFQ used in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil. Participants (n = 281 completed the FFQ and three food records on two occasions during a 12-month period. Energy and nutrient values from food records were disattenuated and log-transformed. Reproducibility and validity were assessed by the intra-class correlation coefficient (ICC. Agreement between the two methods was evaluated by classification in tertiles. In the evaluation of reproducibility, ICC estimated ranged from 0.55 to 0.83 for protein and vitamin E, respectively. On relative validity, ICC ranged from 0.20 to 0.72 for selenium and calcium, respectively. Exact and adjacent agreement between methods varied from 82.9% for vitamin E to 89% for lipids and calcium (mean 86%. Average disagreement was 13.6%. In conclusion, this FFQ showed satisfactory reliability for all nutrients and reasonable validity, especially for energy, macronutrients, calcium, potassium, and vitamins E and C.

  9. 78 FR 45259 - 60-Day Notice of Proposed Information Collection: Federal Labor Standards Questionnaire(s...

    Science.gov (United States)

    2013-07-26

    ... Questionnaire(s); Complaint Intake Form AGENCY: Office of Labor Relations, HUD. ACTION: Notice. SUMMARY: HUD is... Standards Questionnaire; Complaint Intake Form. OMB Approval Number: 2501-0018. Type of Request: Extension... 4730SP, Federal Labor Standards Questionnaires, will be used by HUD and agencies administering...

  10. Evaluating Multilingual Questionnaires: A Sociolinguistic Perspective

    Directory of Open Access Journals (Sweden)

    Yuling Pan

    2014-12-01

    Full Text Available This study aims to develop an assessment tool to evaluate multilingual questionnaires by categorizing the types of translation issues that can lead to measurement errors in cross-cultural surveys. Based on the results of two multilingual projects that cognitively pretested the 2010 U.S. Census questionnaire in five languages and the American Community Survey questionnaire in two languages, we developed a coding scheme guided by sociolinguistic approaches to language and culture to evaluate translated questionnaires by classifying translation issues. In this paper we discuss how the coding scheme is useful in the evaluation of multilingual questionnaires and how it could be integrated productively into the development of such questionnaires and the early rounds of translation. We also suggest feasible solutions to translation issues, to ensure translation quality and achieve not only semantic but functional equivalence across translations. Keywords: survey translation

  11. Validation of a pediatric cough questionnaire.

    Science.gov (United States)

    Hartnick, Christopher J; Zurakowski, David; Haver, Kenan

    2009-11-01

    We conducted a study to determine if a five-item pediatric cough questionnaire (PCQ) is a valid and reliable means of measuring cough-specific quality of life in children. The five questions, which are answered by the child's parent or caregiver, cover cough frequency (Q1), sleep disturbance of the child (Q2), sleep disturbance of the parent (Q3), cough severity (Q4), and the degree of bothersomeness to the child (Q5). Each of the five items was scored on a 6-point Likert scale. The PCQ was administered three times. The first occurred when the parent telephoned to schedule an appointment for the child at a pediatric pulmonology outpatient clinic for a chief complaint of cough. The second PCQ was administered within 2 weeks of the first but before any treatment had been instituted so that test-retest reliability could be assessed. Each child was then diagnosed and treated in accordance with standard care practices. The third PCQ was administered 3 weeks after the second to determine if it would accurately reflect the parent's perception of how the child's cough had changed following treatment. Also, at the second and third encounters, parents were asked to provide their global assessment of whether their child's cough had improved, worsened, or stayed the same since the previous encounter. The parents of 120 children (70 boys and 50 girls; mean age: 6.8 yr) completed all three PCQs. Test-retest reliability was established (p PCQ questions by Spearman correlation analysis (Q1: r = 0.5; Q2: r = 0.38; Q3: r = 0.42; Q4: r = 0.53; Q5: r = 0.5). Other statistical analyses confirmed the PCQ's internal consistency, discriminant validity, and convergent validity. Based on our findings, we conclude that the PCQ is a valid and reliable instrument with which to follow children with chronic cough longitudinally.

  12. Polish Adaptation of Wrist Evaluation Questionnaires.

    Science.gov (United States)

    Czarnecki, Piotr; Wawrzyniak-Bielęda, Anna; Romanowski, Leszek

    2015-01-01

    Questionnaires evaluating hand and wrist function are a very useful tool allowing for objective and systematic recording of symptoms reported by the patients. Most questionnaires generally accepted in clinical practice are available in English and need to be appropriately adapted in translation and undergo subsequent validation before they can be used in another culture and language. The process of translation of the questionnaires was based on the generally accepted guidelines of the International Quality of Life Assessment Project (IQOLA). First, the questionnaires were translated from English into Polish by two independent translators. Then, a joint version of the translation was prepared collectively and translated back into English. Each stage was followed by a written report. The translated questionnaires were then evaluated by a group of patients. We selected 31 patients with wrist problems and asked them to complete the PRWE, Mayo, Michigan and DASH questionnaires twice at intervals of 3-10 days. The results were submitted for statistical analysis. We found a statistically significant (pquestionnaires. A comparison of the PRWE and Mayo questionnaires with the DASH questionnaire also showed a statistically significant correlation (pquestionnaires was successful and that the questionnaires may be used in clinical practice.

  13. Development and psychometric properties of the Smoking Restraint Questionnaire.

    Science.gov (United States)

    Blake, Grant A; Ferguson, Stuart G; Palmer, Matthew A; Shiffman, Saul

    2016-03-01

    Restraint is a component of self-control that focuses on the deliberate reduction of an undesired behavior and is theorized to play a role in smoking reduction and cessation. However, there exists no instrument to assess smoking restraint. This research aimed to develop the Smoking Restraint Questionnaire (SRQ) to meet this need. Participants were 406 smokers (48% female; 52.2% nondaily) with a mean age of 38.83 years (SD = 12.05). They completed a baseline questionnaire designed to assess smoking restraint. They also completed 21 days of ecological momentary assessment (EMA), during which they recorded each cigarette smoked and answered questions related to planned restraint every morning, and restraint attempts every evening. The 4-item questionnaire of smoking restraint was found to fit a single factor (root mean square error of approximation = .038, comparative fit index = .99, Tucker-Lewis index = .99), and the resulting composite was reliable (composite reliability = 0.74). The questionnaire contains items that assess the setting of weekly restraint goals and attempts at not lighting up when tempted to smoke. Participant SRQ scores positively correlated with EMA data on plans to restrain (p < .001) and frequency of restraint attempts (p < .001). These correlations suggest that the SRQ has good predictive validity in relation to the intention and behaviors of smoking reduction. The SRQ is promising as a measure of smoking restraint and may enable further research and insights into smoking reduction and cessation.

  14. Bladder cancer documentation of causes: multilingual questionnaire, 'bladder cancer doc'.

    Science.gov (United States)

    Golka, Klaus; Abreu-Villaca, Yael; Anbari Attar, Rowshanak; Angeli-Greaves, Miriam; Aslam, Muhammad; Basaran, Nursen; Belik, Rouslana; Butryee, Chaniphun; Dalpiaz, Orietta; Dzhusupov, Keneshbek; Ecke, Thorsten H; Galambos, Henrieta; Galambos, Henrieta; Gerilovica, Helena; Gerullis, Holger; Gonzalez, Patricia Casares; Goossens, Maria E; Gorgishvili-Hermes, Lela; Heyns, Chris F; Hodzic, Jasmin; Ikoma, Fumihiko; Jichlinski, Patrice; Kang, Boo-Hyon; Kiesswetter, Ernst; Krishnamurthi, Kannan; Lehmann, Marie-Louise; Martinova, Irina; Mittal, Rama Devi; Ravichandran, Beerappa; Romics, Imre; Roy, Bidyut; Rungkat-Zakaria, Fransiska; Rydzynski, Konrad; Scutaru, Cristian; Shen, Jianhua; Soufi, Maria; Toguzbaeva, Karlygash; Vu Duc, Trinh; Widera, Agata; Wishahi, Mohamed; Hengstler, Jan G

    2012-06-01

    There is a considerable discrepancy between the number of identified occupational-related bladder cancer cases and the estimated numbers particularly in emerging nations or less developed countries where suitable approaches are less or even not known. Thus, within a project of the World Health Organisation Collaborating Centres in Occupational Health, a questionnaire of the Dortmund group, applied in different studies, was translated into more than 30 languages (Afrikaans, Arabic, Bengali, Chinese, Czech, Dutch, English, Finnish, French, Georgian, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Kazakh, Kirghiz, Korean, Latvian, Malay, Persian (Farsi), Polish, Portuguese, Portuguese/Brazilian, Romanian, Russian, Serbo-Croatian, Slovak, Spanish, Spanish/Mexican, Tamil, Telugu, Thai, Turkish, Urdu, Vietnamese). The bipartite questionnaire asks for relevant medical information in the physician's part and for the occupational history since leaving school in the patient's part. Furthermore, this questionnaire is asking for intensity and frequency of certain occupational and non-occupational risk factors. The literature regarding occupations like painter, hairdresser or miner and exposures like carcinogenic aromatic amines, azo dyes, or combustion products is highlighted. The questionnaire is available on www.ifado.de/BladderCancerDoc.

  15. Results of the MarCom questionnaire

    NARCIS (Netherlands)

    Verhagen, H.J.

    2002-01-01

    On request of MarCom a questionnaire has been prepared to investigate the opinion of PIANC members and others about the quality and the usefulness of the MarCom working group reports. The results of this questionnaire were presented and discussed at the Sydney Conference (September 2002).

  16. Item nonresponse in questionnaire research with children

    NARCIS (Netherlands)

    Hox, J.J.; Borgers, N.

    2001-01-01

    This study investigates the effect of item and person characteristics on item nonresponse, for written questionnaires used with school children. Secondary analyses were done on questionnaire data collected in five distinct studies. To analyze the data, logistic multilevel analysis was used with the

  17. "Undecided" responses on the Suicide Opinion Questionnaire.

    Science.gov (United States)

    Lester, David

    2008-12-01

    Domino's Suicide Opinion Questionnaire was administered to 288 students, along with measures of attitudes and personality traits. The number of "undecided" responses was positively associated with death anxiety scores, suggesting this questionnaire might be improved by eliminating the "undecided" response option. The meaning of this response might be studied.

  18. Applying Learning Strategy Questionnaires: Problems and Possibilities

    Science.gov (United States)

    Schellings, Gonny

    2011-01-01

    This article discusses measuring learning strategies by means of questionnaires. In "multi-method" research, in which think-aloud measures are compared with questionnaires, low or moderate correlations are found. A conclusion often drawn is that learners are not able to verbally report on their learning activities. Alternative explanations concern…

  19. Applying learning strategy questionnaires: problems and possibilities

    NARCIS (Netherlands)

    Schellings, G.

    2011-01-01

    This article discusses measuring learning strategies by means of questionnaires. In ‘multi-method’ research, in which think-aloud measures are compared with questionnaires, low or moderate correlations are found. A conclusion often drawn is that learners are not able to verbally report on their lear

  20. Applying Learning Strategy Questionnaires: Problems and Possibilities

    Science.gov (United States)

    Schellings, Gonny

    2011-01-01

    This article discusses measuring learning strategies by means of questionnaires. In "multi-method" research, in which think-aloud measures are compared with questionnaires, low or moderate correlations are found. A conclusion often drawn is that learners are not able to verbally report on their learning activities. Alternative explanations concern…

  1. A Nutritional Questionnaire for Older Adults.

    Science.gov (United States)

    Fanelli, Marie T.; Abernethy, Marilyn M.

    1986-01-01

    Describes a questionnaire assessing nutritional knowledge and eating behaviors of older adults. The questionnaire consists of six sections: demographic and personal information, food resources, food consumption patterns, dietary practices related to health, activity patterns, and nutritional knowledge. Study results demonstrating the…

  2. A practical guide to surveys and questionnaires.

    Science.gov (United States)

    Slattery, Eric L; Voelker, Courtney C J; Nussenbaum, Brian; Rich, Jason T; Paniello, Randal C; Neely, J Gail

    2011-06-01

    Surveys with questionnaires play a vital role in decision and policy making in society. Within medicine, including otolaryngology, surveys with questionnaires may be the only method for gathering data on rare or unusual events. In addition, questionnaires can be developed and validated to be used as outcome measures in clinical trials and other clinical research architecture. Consequently, it is fundamentally important that such tools be properly developed and validated. Just asking questions that have not gone through rigorous design and development may be misleading and unfair at best; at worst, they can result in under- or overtreatment and unnecessary expense. Furthermore, it is important that consumers of the data produced by these instruments understand the principles of questionnaire design to interpret results in an optimal and meaningful way. This article presents a practical guide for understanding the methodologies of survey and questionnaire design, including the concepts of validity and reliability, how surveys are administered and implemented, and, finally, biases and pitfalls of surveys.

  3. Diet History Questionnaire II and Canadian Diet History Questionnaire II: Coding Guidelines

    Science.gov (United States)

    A questionnaire data file is an ASCII text file containing data from completed Diet History Questionnaires. If using paper forms, this file can be created by a scanner or a data entry system. If using DHQ*Web, the questionnaire data file is created automatically.

  4. Developing and validating an Academic Listening Questionnaire

    Directory of Open Access Journals (Sweden)

    Vahid Aryadoust

    2012-09-01

    Full Text Available This article reports on the development and administration of the Academic Listening Self-rating Questionnaire (ALSA. The ALSA was developed on the basis of a proposed model of academic listening comprising six related components. The researchers operationalized the model, subjected items to iterative rounds of content analysis, and administered the finalized questionnaire to international ESL (English as a second language students in Malaysian and Australian universities. Structural equation modeling and rating scale modeling of data provided content-related, substantive, and structural validity evidence for the instrument. The researchers explain the utility of the questionnaire for educational and assessment purposes.

  5. The Fear of Cockroaches Questionnaire (FCQ)

    OpenAIRE

    Scandola, Michele; Bastinelli, Alessia; Spoto, Andrea; Vidotto, Giulio

    2010-01-01

    The aim of this study was to validate the Fear of Cockroaches Questionnaire (FCQ) in general Italian population. The FCQ is an 18-item self-report questionnaire assessing fear of cockroaches. It was translated in Italian and modified as a cockroach adaption of the Fear of Spiders Questionnaire. Data obtained from 329 (mean age 24.21 ± 4.08 years) undergraduates revealed that the FCQ allowed discrimination between high fear and low fear subjects. Exploratory Factor Analysis revealed a mono-fac...

  6. Responsiveness of the individual work performance questionnaire

    NARCIS (Netherlands)

    Koopmans, L.; Coffeng, J.K.; Bernaards, C.M.; Boot, C.R.; Hildebrandt, V.H.; Vet, H.C. de; Beek, A.J. van der

    2014-01-01

    Background: Individual work performance is an important outcome measure in studies in the workplace. Nevertheless, its conceptualization and measurement has proven challenging. To overcome limitations of existing scales, the Individual Work Performance Questionnaire (IWPQ) was recently developed. Th

  7. A lecture questionnaire about mathematics ; 4

    OpenAIRE

    山田, 弘明; 山下, 陽介; 小野, 裕明

    2016-01-01

    We investigated basic understanding of Probability and Statistics in new curriculum of high school by questionnaires given to the students. Based on the result, we discuss about the importance of the "Statistics literacy education" in university education and social life.

  8. Report based on DT/7 questionnaire

    DEFF Research Database (Denmark)

    Sørensen, Annette Balle; Kruse, Filip; Thøgersen, Jørn

    DT/7-D4 is concerned with which types of communication within academic communities are essential viewed in respect of preservation. The central product is a presentation and an analysis of a questionnaire deployed to researchers at Aarhus University....

  9. 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.

  10. A content validated questionnaire for assessment of self reported venous blood sampling practices

    Directory of Open Access Journals (Sweden)

    Bölenius Karin

    2012-01-01

    Full Text Available Abstract Background Venous blood sampling is a common procedure in health care. It is strictly regulated by national and international guidelines. Deviations from guidelines due to human mistakes can cause patient harm. Validated questionnaires for health care personnel can be used to assess preventable "near misses"--i.e. potential errors and nonconformities during venous blood sampling practices that could transform into adverse events. However, no validated questionnaire that assesses nonconformities in venous blood sampling has previously been presented. The aim was to test a recently developed questionnaire in self reported venous blood sampling practices for validity and reliability. Findings We developed a questionnaire to assess deviations from best practices during venous blood sampling. The questionnaire contained questions about patient identification, test request management, test tube labeling, test tube handling, information search procedures and frequencies of error reporting. For content validity, the questionnaire was confirmed by experts on questionnaires and venous blood sampling. For reliability, test-retest statistics were used on the questionnaire answered twice. The final venous blood sampling questionnaire included 19 questions out of which 9 had in total 34 underlying items. It was found to have content validity. The test-retest analysis demonstrated that the items were generally stable. In total, 82% of the items fulfilled the reliability acceptance criteria. Conclusions The questionnaire could be used for assessment of "near miss" practices that could jeopardize patient safety and gives several benefits instead of assessing rare adverse events only. The higher frequencies of "near miss" practices allows for quantitative analysis of the effect of corrective interventions and to benchmark preanalytical quality not only at the laboratory/hospital level but also at the health care unit/hospital ward.

  11. A self administered reliable questionnaire to assess lower bowel symptoms

    Directory of Open Access Journals (Sweden)

    Katelaris Peter H

    2008-03-01

    Full Text Available Abstract Background Bowel symptoms are considered indicators of the presence of colorectal cancer and other bowel diseases. Self administered questionnaires that elicit information about lower bowel symptoms have not been assessed for reliability, although this has been done for upper bowel symptoms. Our aim was to develop a self administered questionnaire for eliciting the presence, nature and severity of lower bowel symptoms potentially related to colorectal cancer, and assess its reliability. Methods Immediately before consulting a gastroenterologist or colorectal surgeon, 263 patients likely to have a colonoscopy completed the questionnaire. Reliability was assessed in two ways: by assessing agreement between patient responses and (a responses given by the doctor at the consultation; and (b responses given by patients two weeks later. Results There was more than 75% agreement for 78% of the questions for the patient-doctor comparison and for 92% of the questions for the patient-patient comparison. Agreement for the length of time a symptom was present, its severity, duration, frequency of occurrence and whether or not medical consultation had been sought, all had agreement of greater than 70%. Over all questions, the chance corrected agreement for the patient-doctor comparison had a median kappa of 65% (which represents substantial agreement, interquartile range 57–72%. The patient-patient comparison also showed substantial agreement with a median kappa of 75%, interquartile range 68–81%. Conclusion This self administered questionnaire about lower bowel symptoms is a useful way of eliciting details of bowel symptoms. It is a reliable instrument that is acceptable to patients and easily completed. Its use could guide the clinical consultation, allowing a more efficient, comprehensive and useful interaction, ensuring that all symptoms are assessed. It will also be a useful tool in research studies on bowel symptoms and their predictive

  12. Academic Training: Academic Training Lectures-Questionnaire

    CERN Multimedia

    2004-01-01

    ACADEMIC TRAINING Françoise Benz tel. 73127 academic.training@cern.ch SUGGEST AND WIN! Its time to plan the 2004-2005 lecture series. From today until March 19 you have the chance to give your contribution to planning for next year's Academic Training Lecture Series. At the web site: http://cern.ch/Academic.Training/questionnaire you will find questionnaires proposing topics in high energy physics, applied physics and science and society. Answering the questionnaire will help ensure that the selected topics are as close as possible to your interests. In particular requests and comments from students will be much appreciated. To encourage your contribution, the AT Committee will reward one lucky winner with a small prize, a 50 CHF coupon for a book purchase at the CERN bookshop.

  13. Orthorexia nervosa: validation of a diagnosis questionnaire.

    Science.gov (United States)

    Donini, L M; Marsili, D; Graziani, M P; Imbriale, M; Cannella, C

    2005-06-01

    To validate a questionnaire for the diagnosis of orhorexia oervosa, an eating disorder defined as "maniacal obsession for healthy food". 525 subjects were enrolled. Then they were randomized into two samples (sample of 404 subjects for the construction of the test for the diagnosis of orthorexia ORTO-15; sample of 121 subjects for the validation of the test). The ORTO-15 questionnaire, validated for the diagnosis of orthorexia, is made-up of 15 multiple-choice items. The test we proposed for the diagnosis of orthorexia (ORTO 15) showed a good predictive capability at a threshold value of 40 (efficacy 73.8%, sensitivity 55.6% and specificity 75.8%) also on verification with a control sample. However, it has a limit in identifying the obsessive disorder. For this reason we maintain that further investigation is necessary and that new questions useful for the evaluation of the obsessive-compulsive behavior should be added to the ORTO-15 questionnaire.

  14. JOA back pain evaluation questionnaire: initial report.

    Science.gov (United States)

    Fukui, Mitsuru; Chiba, Kazuhiro; Kawakami, Mamoru; Kikuchi, Shinichi; Konno, Shinichi; Miyamoto, Masabumi; Seichi, Atsushi; Shimamura, Tadashi; Shirado, Osamu; Taguchi, Toshihiko; Takahashi, Kazuhisa; Takeshita, Katsushi; Tani, Toshikazu; Toyama, Yoshiaki; Wada, Eiji; Yonenobu, Kazuo; Tanaka, Takashi; Hirota, Yoshio

    2007-09-01

    There is no widely accepted objective evaluation for lumbar spine disorders. New outcome measures should be patient-oriented and should measure symptoms and self-reported functional status in multiple dimensions. The aim of this study was to identify items to be included in the disease-specific quality of life (QOL) questionnaire for the assessments of patients with lumbar spine disorders. The draft of the QOL questionnaire that consisted of a total of 60 items, including 24 items derived from the Japanese version of the Roland Morris Disability Questionnaire (RDQ) and 36 items derived from the Japanese version of Short Form 36 (SF-36), were administered to patients and controls. After obtaining written informed consent, the following data were collected from the patient group (n = 328) and the control group (n = 213): (1) background characteristics, including age, diagnosis, Japanese Orthopaedic Association (JOA) score, and finger to floor distance; (2) responses to the questionnaire; (3) the identification rate by discrimination analysis to select the candidates for adoption and by adopting explanatory variables. The items to be excluded were determined by examining the explanatory variables, which were selected after the discrimination analysis, by setting the candidate to-be-excluded items as an objective variable. Based on the distribution of the responses, two items, RDQ-15 and RDQ-19, were excluded. From the results of the correlation coefficient calculation for each question in the patient group, 33 items were excluded and 27 candidate items were adopted. Based on the adoption explanatory variable used in the discrimination analysis, 25 of the 27 candidate items for adoption were accepted. This study identified the 25 specific questionnaire items that should be included in the questionnaire to evaluate QOL of patients with various lumbar spine disorders.

  15. 2006-2007 Academic Training Programme Questionnaire

    CERN Multimedia

    Françoise Benz

    2006-01-01

    Please help the Academic Training Committee to plan the 2006-07 programme of lectures by filling in the 2006-07 Academic Training Programme Questionnaire, which can be found at: http://academia.web.cern.ch/academia/questionnaire/ If you wish to participate in one of the following courses, please tell to your supervisor and apply electronically from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an 'application for training'form available from your Departmental Secretariat or from your DTO (Departmental Training Officer). Applications will be accepted in the order in which they are received.

  16. 2006-2007 Academic Training Programme Questionnaire

    CERN Multimedia

    Françoise Benz

    2006-01-01

    Please help the Academic Training Committee to plan the 2006-07 programme of lectures by filling in the 2006-07 Academic Training Programme Questionnaire, which can be found at: http://academia.web.cern.ch/academia/questionnaire/ If you wish to participate in one of the following courses, please tell to your supervisor and apply electronically from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an 'application for training'form available from your Departmental Secretariat or from your DTO (Departmental Training Officer). Applications will be accepted in the order in which they are received.

  17. Using existing questionnaires in latent class analysis

    DEFF Research Database (Denmark)

    Nielsen, Anne Molgaard; Vach, Werner; Kent, Peter

    2016-01-01

    BACKGROUND: Latent class analysis (LCA) is increasingly being used in health research, but optimal approaches to handling complex clinical data are unclear. One issue is that commonly used questionnaires are multidimensional, but expressed as summary scores. Using the example of low back pain (LBP......), the aim of this study was to explore and descriptively compare the application of LCA when using questionnaire summary scores and when using single items to subgrouping of patients based on multidimensional data. MATERIALS AND METHODS: Baseline data from 928 LBP patients in an observational study were...

  18. Validation of the burns itch questionnaire

    NARCIS (Netherlands)

    Van Loey, N E; Hofland, H W; Hendrickx, H; Van de Steenoven, J; Boekelaar, A; Nieuwenhuis, M K

    2016-01-01

    Itch (pruritus) is a common multidimensional complaint after burn that can persist for months to years. A questionnaire able to investigate itch and its consequences is imperative for clinical and research purposes. The current study investigated the factor structure, internal consistency and constr

  19. Selective Mutism Questionnaire: Measurement Structure and Validity

    Science.gov (United States)

    Letamendi, Andrea M.; Chavira, Denise A.; Hitchcock, Carla A.; Roesch, Scott C.; Shipon-Blum, Elisa; Stein, Murray B.

    2008-01-01

    The psychometric properties of the Selective Mutism Questionnaire (SMQ) are evaluated using a clinical sample of children with selective mutism (SM). The study shows that SMQ is useful in determining the severity of a child's nonspeaking behaviors, the scope of these behaviors and necessary follow up assessment.

  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. A closer look at web questionnaire design

    NARCIS (Netherlands)

    Toepoel, V.

    2008-01-01

    This dissertation deals with the design of online questionnaires and its consequences for data quality: what is the effect of the number of items placed on a screen, the response categories, layout choices et cetera. It also focuses on attrition and panel conditioning: what do people learn from taki

  2. Grouping of Items in Mobile Web Questionnaires

    Science.gov (United States)

    Mavletova, Aigul; Couper, Mick P.

    2016-01-01

    There is some evidence that a scrolling design may reduce breakoffs in mobile web surveys compared to a paging design, but there is little empirical evidence to guide the choice of the optimal number of items per page. We investigate the effect of the number of items presented on a page on data quality in two types of questionnaires: with or…

  3. The Caring School Leadership Questionnaire (CSLQ)

    African Journals Online (AJOL)

    The purpose of this research was to develop the Caring School Leadership Questionnaire ... the CSLQ was determined by means of a confirmatory factor analysis. ... be applied with good effect in 180º-, 360º-, as well as self-evaluations of school leaders. ..... surveys could be used in developing management strategies for.

  4. Results of Questionnaire on Faculty Work Load.

    Science.gov (United States)

    Felder, Rodney

    A questionnaire on faculty work load was sent to the presidents of 57 colleges selected at random except for 3 factors: universities and colleges of the City University of NY were not included; the emphasis was on private institutions; colleges selected were primarily in the south, east and midwest. Of the 39 or 68.4% replies, 35 were from private…

  5. Validation of the Child Sport Cohesion Questionnaire

    Science.gov (United States)

    Martin, Luc J.; Carron, Albert V.; Eys, Mark A.; Loughead, Todd

    2013-01-01

    The purpose of the present study was to test the validity evidence of the Child Sport Cohesion Questionnaire (CSCQ). To accomplish this task, convergent, discriminant, and known-group difference validity were examined, along with factorial validity via confirmatory factor analysis (CFA). Child athletes (N = 290, M[subscript age] = 10.73 plus or…

  6. Diet History Questionnaire Paper-based Forms

    Science.gov (United States)

    DHQ-1 is the standard version of the NCI's Diet History Questionnaire. It was originally printed in 1998, reprinted in 2002 with minor changes to the front page and the development of a Spanish translation, and reprinted again in 2007 with changes to the Today's Date field to include the years 2007-2011.

  7. A closer look at web questionnaire design

    NARCIS (Netherlands)

    Toepoel, V.

    2008-01-01

    This dissertation deals with the design of online questionnaires and its consequences for data quality: what is the effect of the number of items placed on a screen, the response categories, layout choices et cetera. It also focuses on attrition and panel conditioning: what do people learn from

  8. Structural Validity of the Multifactor Leadership Questionnaire.

    Science.gov (United States)

    Tepper, Bennett J.; Percy, Paul M.

    1994-01-01

    Two studies with 290 college students and 95 business managers investigated the latent structure of items from the Multifactor Leadership Questionnaire (MLQ). Results support models in which transformational and transactional leadership items load on separate factors and suggest that charismatic and inspirational leadership scales converge for…

  9. Validation of the Child Sport Cohesion Questionnaire

    Science.gov (United States)

    Martin, Luc J.; Carron, Albert V.; Eys, Mark A.; Loughead, Todd

    2013-01-01

    The purpose of the present study was to test the validity evidence of the Child Sport Cohesion Questionnaire (CSCQ). To accomplish this task, convergent, discriminant, and known-group difference validity were examined, along with factorial validity via confirmatory factor analysis (CFA). Child athletes (N = 290, M[subscript age] = 10.73 plus or…

  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. Utah Drop-Out Drug Use Questionnaire.

    Science.gov (United States)

    Governor's Citizen Advisory Committee on Drugs, Salt Lake City, UT.

    This questionnaire assesses drug use practices in high school drop-outs. The 79 items (multiple choice or apply/not apply) are concerned with demographic data and use, use history, reasons for use/nonuse, attitudes toward drugs, availability of drugs, and drug information with respect to narcotics, amphetamines, LSD, Marijuana, and barbiturates.…

  12. Job Evaluation with the Position Analysis Questionnaire

    Science.gov (United States)

    Harris, Alma F.; Matson, G. Albion

    1976-01-01

    Assessment of the Position Analysis Questionnaire (PAQ) at a four-year state college with 8,000 students indicates that the PAQ job evaluation method is sufficiently valid and has enough unique advantages to warrant its serious consideration for use by college and university personnel administrators. (LBH)

  13. The Personal Attributes Questionnaire: A Conceptual Analysis.

    Science.gov (United States)

    Ozer, Daniel

    The rich complexity of the concepts of masculinity and femininity has been reflected in personality measures in at least two different ways: by employing a variety of subscales with comparatively homogeneous items or by using a single scale with comparatively heterogeneous items. The Personal Attributes Questionnaire (PAQ) was the subject of an…

  14. Utah Drop-Out Drug Use Questionnaire.

    Science.gov (United States)

    Governor's Citizen Advisory Committee on Drugs, Salt Lake City, UT.

    This questionnaire assesses drug use practices in high school drop-outs. The 79 items (multiple choice or apply/not apply) are concerned with demographic data and use, use history, reasons for use/nonuse, attitudes toward drugs, availability of drugs, and drug information with respect to narcotics, amphetamines, LSD, Marijuana, and barbiturates.…

  15. Revalidation of the Perceptions of Conscience Questionnaire (PCQ) and the Stress of Conscience Questionnaire (SCQ).

    Science.gov (United States)

    Ahlin, Johan; Ericson-Lidman, Eva; Norberg, Astrid; Strandberg, Gunilla

    2012-03-01

    The Perceptions of Conscience Questionnaire (PCQ) and the Stress of Conscience Questionnaire (SCQ) have previously been developed and validated within the 'Stress of Conscience Study'. The aim was to revalidate these two questionnaires, including two additional, theoretically and empirically significant items, on a sample of healthcare personnel working in direct contact with patients. The sample consisted of 503 healthcare personnel. To test variation and distribution among the answers, descriptive statistics, item analysis and principal component analysis (PCA) were used to examine the underlying factor structure of the questionnaires. Support for adding the new item to the PCQ was found. No support was found for adding the new item to the SCQ. Both questionnaires can be regarded as valid for Swedish settings but can be improved by rephrasing some of the PCQ items and by adding items about private life to the SCQ.

  16. The OnyCOE-t™ questionnaire: responsiveness and clinical meaningfulness of a patient-reported outcomes questionnaire for toenail onychomycosis

    Science.gov (United States)

    Potter, Lori P; Mathias, Susan D; Raut, Monika; Kianifard, Farid; Tavakkol, Amir

    2006-01-01

    Background This research was conducted to confirm the validity and reliability and to assess the responsiveness and clinical meaningfulness of the OnyCOE-t™, a questionnaire specifically designed to measure patient-reported outcomes (PRO) associated with toenail onychomycosis. Methods 504 patients with toenail onychomycosis randomized to receive 12 weeks of terbinafine 250 mg/day with or without target toenail debridement in the IRON-CLAD® trial completed the OnyCOE-t™ at baseline, weeks 6, 12, 24, and 48. The OnyCOE-t™ is composed of 6 multi-item scales and 1 single-item scale. These include a 7-item Toenail Symptom assessment, which comprises both Symptom Frequency and Symptom Bothersomeness scales; an 8-item Appearance Problems scale; a 7-item Physical Activities Problems scale; a 1-item Overall Problem scale; a 7-item Stigma scale; and a 3-item Treatment Satisfaction scale. In total, 33 toenail onychomycosis-specific items are included in the OnyCOE-t™. Clinical data, in particular the percent clearing of mycotic involvement in the target toenail, and OnyCOE-t™ responses were used to evaluate the questionnaire's reliability, validity, responsiveness, and the minimally clinical important difference (MCID). Results The OnyCOE-t™ was shown to be reliable and valid. Construct validity and known groups validity were acceptable. Internal consistency reliability of multi-item scales was demonstrated by Cronbach's alpha > .84. Responsiveness was good, with the Treatment Satisfaction, Symptom Frequency, Overall Problem, and Appearance Problem scales demonstrating the most responsiveness (Guyatt's statistic of 1.72, 1.31, 1.13, and 1.11, respectively). MCID was evaluated for three different clinical measures, and indicated that approximately an 8.5-point change (on a 0 to 100 scale) was clinically meaningful based on a 25% improvement in target nail clearing. Conclusion The OnyCOE-t™ questionnaire is a unique, toenail-specific PRO questionnaire that can be

  17. The OnyCOE-t™ questionnaire: responsiveness and clinical meaningfulness of a patient-reported outcomes questionnaire for toenail onychomycosis

    Directory of Open Access Journals (Sweden)

    Kianifard Farid

    2006-08-01

    Full Text Available Abstract Background This research was conducted to confirm the validity and reliability and to assess the responsiveness and clinical meaningfulness of the OnyCOE-t™, a questionnaire specifically designed to measure patient-reported outcomes (PRO associated with toenail onychomycosis. Methods 504 patients with toenail onychomycosis randomized to receive 12 weeks of terbinafine 250 mg/day with or without target toenail debridement in the IRON-CLAD® trial completed the OnyCOE-t™ at baseline, weeks 6, 12, 24, and 48. The OnyCOE-t™ is composed of 6 multi-item scales and 1 single-item scale. These include a 7-item Toenail Symptom assessment, which comprises both Symptom Frequency and Symptom Bothersomeness scales; an 8-item Appearance Problems scale; a 7-item Physical Activities Problems scale; a 1-item Overall Problem scale; a 7-item Stigma scale; and a 3-item Treatment Satisfaction scale. In total, 33 toenail onychomycosis-specific items are included in the OnyCOE-t™. Clinical data, in particular the percent clearing of mycotic involvement in the target toenail, and OnyCOE-t™ responses were used to evaluate the questionnaire's reliability, validity, responsiveness, and the minimally clinical important difference (MCID. Results The OnyCOE-t™ was shown to be reliable and valid. Construct validity and known groups validity were acceptable. Internal consistency reliability of multi-item scales was demonstrated by Cronbach's alpha > .84. Responsiveness was good, with the Treatment Satisfaction, Symptom Frequency, Overall Problem, and Appearance Problem scales demonstrating the most responsiveness (Guyatt's statistic of 1.72, 1.31, 1.13, and 1.11, respectively. MCID was evaluated for three different clinical measures, and indicated that approximately an 8.5-point change (on a 0 to 100 scale was clinically meaningful based on a 25% improvement in target nail clearing. Conclusion The OnyCOE-t™ questionnaire is a unique, toenail-specific PRO

  18. Using the Evaluative Linguistic Framework for Questionnaires to Assess Comprehensibility of Self-Report Health Questionnaires.

    Science.gov (United States)

    Clerehan, Rosemary; Guillemin, Francis; Epstein, Jonathan; Buchbinder, Rachelle

    2016-06-01

    The Evaluative Linguistic Framework (ELF) was developed to judge the quality of health care texts for patients, based on systemic functional linguistic theory. This approach considers key variables such as context and structure, known to be important for communication. Our objective was to adapt the ELF to evaluate the quality of self-report questionnaires. We reviewed the Health Literacy Questionnaire using the ELF. On the basis of these data, we drafted the preliminary version of the Evaluative Linguistic Framework for Questionnaires (ELF-Q) and applied it to English- and French-language versions of two arthritis self-report questionnaires and to Spanish, Dutch, and Turkish versions of an arthritis questionnaire. The developed ELF-Q was found to be effective for evaluating questionnaires in English and in four other languages. It contains nine items with new descriptions and assessment probes. These include overall organizational or generic structure of the questionnaire, metadiscourse (or text about the text), headings, rhetorical elements (function of each "move" or stage of the text in relation to the reader), the writer-reader relationship, technicality of vocabulary, lexical density (proportion of content words in the text), format, and overall judgment. We added assessment responses on a two- or three-point Likert scale to complement the assessment probes and make the intent and meaning of the probes fully explicit for the questionnaire developer or assessor. The ELF-Q is a framework practical to use for the development or assessment of any type of self-report questionnaire. Its application can identify features of a self-report questionnaire that could be improved to optimize its comprehensibility. Copyright © 2016 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.

  19. 78 FR 65608 - Information Collection; Outreach Opportunity Questionnaire

    Science.gov (United States)

    2013-11-01

    ... Forest Service Information Collection; Outreach Opportunity Questionnaire AGENCY: Forest Service, USDA... with revision of a currently approved information collection, Outreach Opportunity Questionnaire. DATES... INFORMATION: Title: Outreach Opportunity Questionnaire. OMB Number: 0596-0207. Expiration Date of...

  20. 75 FR 30364 - Information Collection; Outreach Opportunity Questionnaire

    Science.gov (United States)

    2010-06-01

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Information Collection; Outreach Opportunity Questionnaire AGENCY... Opportunity Questionnaire. DATES: Comments must be received in writing on or before August 2, 2010 to be... Friday. SUPPLEMENTARY INFORMATION: Title: Outreach Opportunity Questionnaire. OMB Number:...

  1. 77 FR 39986 - Information Collection; Health Screening Questionnaire

    Science.gov (United States)

    2012-07-06

    ... Forest Service Information Collection; Health Screening Questionnaire AGENCY: Forest Service, USDA... a currently approved information collection, Health Screening Questionnaire. DATES: Comments must be...: Title: Health Screening Questionnaire. OMB Number: 0596-0164. Expiration Date of Approval: January...

  2. Violence at the workplace--a questionnaire survey of nurses.

    Science.gov (United States)

    Merecz, Dorota; Rymaszewska, Joanna; Mościcka, Agnieszka; Kiejna, Andrzej; Jarosz-Nowak, Joanna

    2006-10-01

    In the health sector, anywhere in the world nurses are one of the most exposed groups to violence. However, it is not obvious that psychiatric nurses (PNs) are more exposed to aggression and burnout. To determine the nature and effects of aggressive acts towards nursing staff in psychiatric and other medical services in Poland. Various questionnaires (Stress at Work Scale, General Health Questionnaire, Maslach Burnout Inventory, Work Satisfaction Scale), were distributed among psychiatric (N=78) and non-psychiatric nurses (N-PNs) (N=335). A 92.6% response rate was achieved. Significant differences were found between PNs and non-psychiatric counterparts with respect to their experiences of violence. The most frequently reported incident was verbal abuse, followed by threats and physical assault. Patients were significantly more frequent perpetrators in psychiatric wards than in others. The level of intra-staff aggression did not significantly vary between groups, neither did the level of work satisfaction and absenteeism. The frequency of violent acts and stress related to them point out the strong need for the development of preventive programs to address the issue of violence at work.

  3. Bullying among trainee doctors in Southern India: A questionnaire study

    Directory of Open Access Journals (Sweden)

    Bairy K

    2007-01-01

    Full Text Available Background: Workplace bullying is an important and serious issue in a healthcare setting because of its potential impact on the welfare of care-providers as well as the consumers. Aims: To gauge the extent of bullying among the medical community in India; as a subsidiary objective, to assess the personality trait of the bullying victims. Settings and Design: A cross-sectional, anonymous, self-reported questionnaire survey was undertaken among a convenient sample of all the trainee doctors at a Government Medical College in Tamil Nadu, India. Materials and Methods: A questionnaire, in English with standard written explanation of bullying was used. Basic information like age, sex, job grade and the specialty in case of Postgraduates (PGs were also collected. Statistical Analysis: The results were subjected to descriptive statistical analysis and Chi-square test for comparison of frequencies. Results: A total of 174 doctors (115 PGs and 59 junior doctors, took part in the study with a cent percent response. Nearly half of the surveyed population reported being subjected to bullying. Nearly 54 (53% of the men and 35 (48% of women were subjected to bullying. Significant proportions ( P < 0.0001 of medical personnel and paramedical staff bullied the PGs and junior doctors, respectively. More than 85 (90% of bullying incidents went unreported. A significant ( P < 0.0001 percentage of PGs and junior doctors revealed a personality trait towards bully. Conclusions: Workplace bullying is common among trainee doctors and usually goes unreported.

  4. ACADEMIC TRAINING LECTURES QUESTIONNAIRE: SUGGEST AND WIN!

    CERN Multimedia

    Academic Training; Tel. 73127

    2001-01-01

    Time to plan for the 2001-02 lecture series. From today until April 9 you have the chance to give your contribution to improved planning for next year's Academic Training Lectures Series. At the web site: http://wwwinfo/support/survey/academic-training/ you will find questionnaires concerning the following different categories: high energy physics, applied physics, science and society and post-graduate students lectures. Answering the questionnaire will help ensure that the selected topics are as close as possible to your interests. In particular requests and comments from students will be much appreciated. To encourage your contribution, the AT Committee will reward one lucky winner with a small prize, a 50 CHF coupon for a book purchase at CERN bookshop.

  5. User questionnaire to evaluate the radiological workspace.

    Science.gov (United States)

    van Ooijen, Peter M A; Koesoema, Allya P; Oudkerk, Matthijs

    2006-01-01

    Over the past few years, an increase in digitalization of radiology departments can be seen, which has a large impact on the work of the radiologists. This impact is not only demonstrated by the increased use of digital images but also by changing demands on the whole reading environment. In this study, we evaluated the satisfaction of our radiologists with our digital Picture Archival and Communication System environment and their workspace. This evaluation was performed by distribution of a questionnaire consisting of a score sheet and some open questions to all radiologists and residents. Out of 25 questionnaires, 12 were adequately answered and returned. Results clearly showed that most problems were present in the area of reading room design and layout and comfort and ergonomics. Based on the results from this study, adaptations were made and the results were also used in the planning of the redesign of the entire department of radiology.

  6. 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...

  7. 2005-06 Academic Training Programme Questionnaire

    CERN Multimedia

    Françoise Benz

    2005-01-01

    Please help the Academic Training Committee to plan the 2005-06 programme of lectures by filling in the 2005-06 Academic Training Programme Questionnaire which can be found at: http://cern.ch/Academic.Training/questionnaire ENSEIGNEMENT ACADEMIQUE ACADEMIC TRAINING Françoise Benz 73127 academic.training@cern.ch If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.

  8. Development of the Young Spine Questionnaire

    DEFF Research Database (Denmark)

    Lauridsen, Henrik Hein; Hestbæk, Lise

    Title Development of the Young Spine Questionnaire Authors & Affiliations Henrik Hein Lauridsen1, Lise Hestbæk1,2 1. Research Unit for Clinical Biomechanics, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Clinical Locomotion Network, Campusvej 55, DK-5230...... and adolescents are absent. The purpose of this study was to develop an instrument for children aged 9-12 years which could fill this gap in the literature. Methods The Young Spine Questionnaire (YSQ) was developed in three phases – the conceptualisation, development and testing phase. We used the conceptual...... model of Wilson and Cleary (1995) and divided the YSQ into two parts: part one included spinal prevalence estimates (including pictures of spinal area) and part two questions regarding pain, activity restrictions, care seeking behaviour and influence of parental back trouble. During the developing phase...

  9. 2005-06 Academic Training Programme Questionnaire

    CERN Document Server

    Françoise Benz

    2005-01-01

    Please help the Academic Training Committee to plan the 2005-06 programme of lectures by filling in the 2005-06 Academic Training Programme Questionnaire which can be found at: http://cern.ch/Academic.Training/questionnaire ENSEIGNEMENT ACADEMIQUE ACADEMIC TRAINING Françoise Benz 73127 academic.training@cern.ch If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an 'application for training' form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt.

  10. [Efficient personality questionnaire for professional training].

    Science.gov (United States)

    Martín Del Buey, Francisco de Asís; Fernández Zapico, Ana; Martín Palacio, Eugenia; Dapelo Pellerano, Blanca; Marcone Trigo, Rodolfo; Granados Urban, Pilar

    2008-05-01

    This study falls within the theoretical framework of the construct of the Efficient Personality. In this work, we present the study of validity and reliability of an original questionnaire made up of 60 items, applied to students from formative cycles of higher Professional Training. The questionnaire was reduced to 24 items, surpassing its initial .84 Cronbach alpha coefficient. Six first-order factors were obtained: Social Self-concept, Academic Self-concept, Solving Ability, Self-esteem, and Problem Coping. One second-order factor was obtained: Efficient Personality. The six-component factorial solution is similar both to the Spanish version for secondary school and to the Chilean versions for secondary and university populations, dividing the initial dimension of Self-concept into Self-concept and Self-esteem.

  11. A PHYSICAL ACTIVITY QUESTIONNAIRE: REPRODUCIBILITY AND VALIDITY

    Directory of Open Access Journals (Sweden)

    Nicolas Barbosa

    2007-12-01

    Full Text Available This study evaluates the Quantification de L'Activite Physique en Altitude chez les Enfants (QAPACE supervised self-administered questionnaire reproducibility and validity on the estimation of the mean daily energy expenditure (DEE on Bogotá's schoolchildren. The comprehension was assessed on 324 students, whereas the reproducibility was studied on a different random sample of 162 who were exposed twice to it. Reproducibility was assessed using both the Bland-Altman plot and the intra-class correlation coefficient (ICC. The validity was studied in a sample of 18 girls and 18 boys randomly selected, which completed the test - re-test study. The DEE derived from the questionnaire was compared with the laboratory measurement results of the peak oxygen uptake (Peak VO2 from ergo-spirometry and Leger Test. The reproducibility ICC was 0.96 (95% C.I. 0.95-0.97; by age categories 8-10, 0.94 (0.89-0. 97; 11-13, 0.98 (0.96- 0.99; 14-16, 0.95 (0.91-0.98. The ICC between mean TEE as estimated by the questionnaire and the direct and indirect Peak VO2 was 0.76 (0.66 (p<0.01; by age categories, 8-10, 11-13, and 14-16 were 0.89 (0.87, 0.76 (0.78 and 0.88 (0.80 respectively. The QAPACE questionnaire is reproducible and valid for estimating PA and showed a high correlation with the Peak VO2 uptake

  12. [Medical research using Internet questionnaire in Japan].

    Science.gov (United States)

    Yasunaga, Hideo; Ide, Hiroo; Imamura, Tomoaki; Ohe, Kazuhiko

    2006-01-01

    As the method for questionnaire studies, mail survey and interview survey are frequently used. The utility and validity of applying the Internet method to medical studies have yet to be fully evaluated. For the present investigation, we reviewed 36 Japanese original articles using Internet questionnaire reported through to April 2005. Although original papers using the Internet method have been increasing in recent years, they are still limited in number. There is comparatively much research on disease with many patients in youth and early manhood, such as allergic ailments (allergic rhinitis, atopic dermatitis, and hives). As compared with conventional methods, the advantages of the Internet approach are convenience for both investigators and respondents and the ability to quickly collect data. The disadvantage is that the user's age range is more concentrated. Since samples are extracted from individuals who are registered as monitors, a greater sampling error may occur as compared with a random sampling method. However, it is to be expected that continued explosive growth of the Internet would decrease the limitation in user's age. If more elderly people participate in questionnaire studies using the web, research into more illnesses should be facilitated. Considering the inherent advantage, it is thought that Internet method can become the leading tool for sociomedical and clinical research in the near future.

  13. Menstrual questionnaires for clinical and research use.

    Science.gov (United States)

    Matteson, Kristen A

    2017-04-01

    Patient-reported outcome measures (PROMs) have the potential to be extremely valuable in the clinical care delivery for women who report heavy menstrual bleeding (HMB). Increasingly, studies on HMB have incorporated PROMs to evaluate the impact of bleeding on quality of life. These measures have included semiquantitative charts and pictograms, questionnaires to assess symptoms and impact on quality of life, and health-related quality of life questionnaires. Recent systematic reviews have highlighted inconsistency of outcome measurement across studies on HMB as a challenge limiting the interpretability of the body of literature and the ability to generate consensus on the relative effectiveness of treatment options. Consequently, research initiatives and international collaborations are working to harmonize outcome measurement. Harmonizing the use of questionnaires in research and clinical care has the potential to improve patient-centered care delivery for women with HMB and improve the generation of patient-focused evidence-based guidelines for the evaluation and treatment of HMB. Copyright © 2016. Published by Elsevier Ltd.

  14. 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.

  15. The Danish Prostatic Symptom Score (DAN-PSS-1) questionnaire is reliable in stroke patients

    DEFF Research Database (Denmark)

    Tibaek, Sigrid; Jensen, Rigmor; Klarskov, Peter

    2006-01-01

    . The questionnaire consists of 12 questions related to lower urinary tract symptoms (LUTS). The participants were asked to state the frequency and severity of their symptoms (symptom score) and its impact on their daily life (bother score). Seventy-one stroke patients were included and 59 (83%) answered...... the questionnaire twice. The reliability test was done in two aspects: (a) detecting the frequency of each symptom and its bother factor, the scores were reduced to a two-category scale (=0, >0) and simple kappa statistics was used; (b) detecting the severity of each symptom and its bother factor, the total scale...... (0-3) and weighted kappa statistics was used. RESULTS: The proportion of agreement for the frequency symptom scores ranged from 76% to 97% and the simple kappa coefficient ranged from poor (kappa = 0.00) to excellent (kappa = 0.91). The proportion of agreement for the corresponding bother scores...

  16. [Effect of social desirability on dietary intake estimated from a food questionnaire].

    Science.gov (United States)

    Barros, Renata; Moreira, Pedro; Oliveira, Bruno

    2005-01-01

    Self-report of dietary intake could be biased by social thus affecting risk estimates in epidemiological studies. The objective of study was to assess the effect of social desirability on dietary intake from a food frequency questionnaire (FFQ). A convenience sample of 483 Portuguese university students was recruited. Subjects were invited to complete a two-part self-administered questionnaire: the first part included the Marlowe-Crowne Social Desirability Scale (M-CSDS), a physical activity questionnaire and self-reported height and weight; the second part, included a semi-quantitative FFQ validated for Portuguese adults, that should be returned after fulfillment. All subjects completed the first part of the questionnaire and 40.4% returned the FFQ fairly completed. In multiple regression analysis, after adjustment for energy and confounders, social desirability produced a significant positive effect in the estimates of dietary fibre, vitamin C, vitamin E, magnesium and potassium, in both genders. In multiple regression, after adjustment for energy and confounders, social desirability had a significant positive effect in the estimates of vegetable consumption, for both genders, and a negative effect in white bread and beer, for women. Social desirability affected nutritional and food intake estimated from a food frequency questionnaire.

  17. VALIDITY OF A FOOD-FREQUENCY QUESTIONNAIRE FOR ESTIMATING CALCIUM INTAKE IN ADOLESCENT SWIMMERS.

    Science.gov (United States)

    Julián Almárcegui, Cristina; Huybrechts, Inge; Gómez Bruton, Alejandro; Matute Llorente, Ángel; González Agüero, Alejandro; Gómez Cabello, Alba; Moreno, Luis A; Casajús, Jose A; Vicente Rodríguez, Germán

    2015-10-01

    Introducción: estimar correctamente la ingesta de calcio es crucial para conocer cómo se distribuye nutricionalmente la ingesta calórica a lo largo del día. Por lo tanto, el objetivo del presente trabajo fue validar un cuestionario de frecuencia de consumo para calcular la ingesta de calcio, mediante dos recordatorios de 24 horas, usado como método de referencia en un grupo control de adolescentes normo-activos y un grupo de adolescentes nadadores de alta competición. Metodología: la congruencia de los cuestionarios se estudio mediante correlación de Pearson y el estudio del acuerdo entre los dos métodos a nivel individual, así como la habilidad del cuestionario para clasificar a los sujetos en el mismo cuartil que los recordatorios de 24 horas. Resultados: la ingesta media diaria de calcio del grupo control fue 564,6 mg (DE 232,0) y 895,9 mg (DE 343,1) calculada mediante el recordatorio de 24 horas y el cuestionario, respectivamente (P < 0.001); y 731,9 mg (DE 299,8) y 979,8 mg (DE 408,5) en los nadadores mediante el recordatorio de 24 horas y el cuestionario, respectivamente (P < 0.001). Las correlaciones de Pearson fueron 0,52 para el grupo control y 0,47 para los nadadores después de corregir por intravariablidad. Los análisis de clasificación indicaron que el 73,7% de los controles y el 63,1% de los nadadores fueron clasificados correctamente o en la categoría contigua. El 89% de los controles y el 79% de los nadadores fueron clasificados correctamente según estuvieran por encima o por debajo de las recomendaciones de ingesta de calcio diarias (1.300 mg). Conclusiones: para ambos grupos, el cuestionario de frecuencia de consumo tiende a sobreestimar la ingesta de calcio, sin embargo demuestra ser un buen método para clasificar tanto a los sujetos de ingestas de calcio extremas, como a los sujetos que no cumplen las recomendaciones de calcio.

  18. Validation of a food frequency questionnaire to assess folate intake of Dutch elderly people

    NARCIS (Netherlands)

    Rest, van de O.; Durga, J.; Verhoef, P.; Boonstra, A.; Brants, H.A.M.

    2007-01-01

    Folate is required for 1-carbon metabolism and deficiency in folate leads to megaloblastic anemia. Low levels of folate have been associated with increased risk of vascular disease. To investigate whether RDA of folate are met, habitual folate intake needs to be assessed reliably. We developed a FFQ

  19. [Validity and reproducibility of a food frequency questionnaire to assess lipid and phytochemical intake].

    Science.gov (United States)

    Perovic, Nilda R; Defago, Maria D; Aguinaldo, Anabel; Joekes, Silvia; Actis, Adriana B

    2015-01-01

    Antecedentes: estudios epidemiológicos sugieren que el consumo de ciertos alimentos puede reducir el riesgo de enfermedades no transmisibles (ENT). Objetivo: analizar la validez y reproducibilidad de un cuestionario de frecuencia de consumo alimentario (FFQ) destinado a evaluar la ingesta de lípidos y fitoquímicos. Material y métodos: el FFQ fue administrado a 45 personas de ambos sexos, con edades entre 20 y 72 años de edad, residentes en Córdoba, Argentina. Incluyó 257 preguntas referidas a los alimentos, su frecuencia de consumo y tamaño de la porción. Se consideró la estacionalidad para el consumo de frutas y verduras. El cuestionario se aplicó en dos períodos diferentes (FFQ1 y FFQ2) con un intervalo de seis meses y se acompañó por un recordatorio de 24 horas (24HDR) utilizado en tres periodos de tiempo. Se realizó la estimación de: ingesta promedio FFQ1-FFQ2 y 24HDR-FFQ2, diferencia de medias, desviación absoluta de diferencias de medias, prueba de los rangos con signo de Wilcoxon y test de correlación de Spearman. Resultados: los coeficientes de correlación para FFQ1-FFQ2 variaron de 0,52 para el ácido graso eicosapentanoico 20:5 n3 (EPA) a 0,89 para ácido graso butírico 4:0 (p<0,05). Para 24HDR-FFQ2, los valores de correlación oscilaron entre 0,19 para licopeno y 0,93 para el EPA (p <0,05). Conclusión: el análisis realizado mostró una validez aceptable y reproducibilidad del FFQ, permitiendo así que sea utilizado en investigaciones sobre ingesta de lípidos y fitoquímicos y el riesgo de ENT.

  20. Development, validation and implementation of a quantitative food frequency questionnaire to assess habitual vitamin D intake

    DEFF Research Database (Denmark)

    Kiely, M.; Collins, A.; Lucey, A. J.

    2016-01-01

    the contribution from nutritional supplements) were 5.4 (3.7) and 3.7 (5.9) μg day−1 from the FFQ and DH, respectively and intakes of vitamin D from food sources were 3.6 (3.1) and 2.4 (2.2) μg day−1. The FFQ and DH classified 86% and 87% of individuals into the same and adjacent thirds of wintertime serum 25(OH...

  1. N-Nitroso compounds: Assessing agreement between food frequency questionnaires and 7-day food records

    Science.gov (United States)

    N-nitroso compounds are recognized as important dietary carcinogens. Accurate assessment of N-nitroso intake is fundamental to advancing research regarding its role with cancer. Previous studies have not used a quantitative database to estimate the intake of these compounds in a US population. To ad...

  2. Selecting informative food items for compiling food-frequency questionnaires: Comparison of procedures

    NARCIS (Netherlands)

    Molag, M.L.; Vries, J.H.M. de; Duif, N.; Ocké, M.C.; Dagnelie, P.C.; Goldbohm, R.A.; Veer, P. van 't

    2010-01-01

    The authors automated the selection of foods in a computer system that compiles and processes tailored FFQ. For the selection of food items, several methods are available. The aim of the present study was to compare food lists made by MOM2, which identifies food items with highest between-person var

  3. Validation of a semi-quantitative food frequency questionnaire to assess food groups and nutrient intake.

    Science.gov (United States)

    Macedo-Ojeda, Gabriela; Vizmanos-Lamotte, Barbara; Márquez-Sandoval, Yolanda Fabiola; Rodríguez-Rocha, Norma Patricia; López-Uriarte, Patricia Josefina; Fernández-Ballart, Joan D

    2013-11-01

    Introducción. Los cuestionarios semicuantitativos de frecuencia de consumo (CFC) analizan ingestión promedio de alimentos y nutrimentos en períodos extensos para asociar consumo habitual con problemas de salud, como enfermedades crónicas. En México, no existe una herramienta similar, aplicable en mujeres y hombres. Objetivo. Validar un CFC en mujeres y hombres adultos. Métodos. El estudio incluyó 97 participantes (61% mujeres). Dos CFC fueron aplicados (un año entre ambos) para medir reproducibilidad. Para validez, se comparó el segundo CFC con registros dietéticos de nueve días. Los análisis incluyeron correlaciones de Pearson y coeficientes de correlación intraclase (CCI). Se controló desatenuación de CCI provocada por la variabilidad intraindividual. El análisis de validez se complementó con la comparación de la capacidad de clasificación entre CFC y registros dietéticos, mediante concordancia de categorías de consumo y gráficos de Bland y Altman. Resultados. Reproducibilidad: los CCI para grupos de alimentos oscilaron entre 0.42-0.87 y para nutrimentos entre 0.34-0.82. Validez: los CCI para grupos de alimentos variaron entre 0.35-0.84 y para nutrimentos entre 0.36-0.77. La mayoría de sujetos (56.7-76.3%) clasificaron en el mismo quintil o adyacente por ambos métodos (media 66.1%), para nutrimentos. La mala clasificación extrema para todos los ítems fue.

  4. Reproducibility and validity of a food frequency questionnaire to estimate calcium intake in Puerto Ricans

    Science.gov (United States)

    Palacios, Cristina; Segarra, Adelaida; Trak, Maria Angélica; Colón, Ixian

    2017-01-01

    SUMMARY The objective of the study was to assess the reproducibility and validity of a short semi-quantitative calcium specific FFQ in a convenience Puerto Rican sample. Reproducibility was tested by the difference between calcium intakes from the FFQ completed twice, with a one month difference: validity was assessed against 6-day diet records (DR) in a sample of students, employees and faculty of the Medical Sciences Campus of the University of Puerto Rico. The statistical analyses performed were Pearson correlations, paired t-test. Bland-Altman plots, cross-classification analysis. Willett’s surrogate categories, specificity, sensitivity and predictive value. A total of 93 subjects were included in the study (mean age 28.8±10.1 years, BMI 25.7±6.1 kg/m2). Mean estimated calcium intakes were 846.4±356.9 mg/day for the first FFQ, 801.1±423.7 mg/day for the repeated FFQ and 845.4±377.5 mg/day for 6-day DR. No statistical difference was observed between the means by paired t-test (p>0.05), with significant correlations between means (p<0.05). The FFQ was found to have a specificity of 65.2%, a sensitivity of 73.5%, a positive predictive value of 86.2% and a negative predictive value of 45.5%. In conclusion, the short FFQ is a valid tool that could be used in the future to assess calcium intake in epidemiological surveys in this group. PMID:24617021

  5. [A FOOD FREQUENCY QUESTIONNAIRE TO ASSESS DIET QUALITY IN THE PREVENTION OF IRON DEFICIENCY].

    Science.gov (United States)

    Toxqui Abascal, Laura; Díaz Álvarez, Alejandra; Vaquero, María Pilar

    2015-09-01

    Introducción: A pesar del amplio conocimiento sobre la biodisponibilidad del hierro, no se ha implementado aún un cuestionario de frecuencia de consumo de alimentos (CFCA) para su aplicación en grupos poblacionales con predisposición a anemia. Objetivos: Diseñar un CFCA basado en los potenciadores e inhibidores de la absorción del hierro y valorar su aplicabilidad en un grupo de mujeres en edad fértil. Métodos: Se elaboró un CFCA específico de 28 preguntas, 10 de ellas con indicación del momento de consumo de alimentos, en el desayuno y en comida/cena (CC). Se seleccionaron 179 mujeres sanas jóvenes que se distribuyeron en 3 grupos en función de su estado del hierro, ferritina sérica 30 ng/mL. Resultados: La reproducibilidad del CFCA fue muy alta (coeficiente de Spearman>0.500, p.

  6. Evaluation of a semi-quantitative food frequency questionnaire to estimate iodine intake

    DEFF Research Database (Denmark)

    Rasmussen, Lone Banke; Ovesen, L.; Bulow, I.

    2001-01-01

    dietary records and the correlation between these measures was 0.52 (P questions in the FFQ (for example the question 'How often did you get any kind of fish?') underestimated the intake. In contrast, the intake...

  7. Relative validity of a food frequency questionnaire used in the Inter99 study

    DEFF Research Database (Denmark)

    Toft, U.; Kristoffersen, Lars; Ladelund, S.

    2008-01-01

    blood sample. Overall, 264 subjects participated. RESULTS: Spearman's rank correlation coefficients between the two dietary methods ranged from 0.31(beta-carotene) to 0.64 (fruits) in men and from 0.31 (polyunsaturated fat and sodium) to 0.64 (fruits) for women. The proportion of individuals classified...... in the same or adjacent quintiles were, on average, 72% for men and 69% for women. Gross misclassification was found on average in 2%. The correlation coefficients of the residuals ranged from 0.27 (sodium) to 0.61 (fruits) for men and from 0.21 (sodium) to 0.62 (B12-vitamin) for women. Correlation...... classification of individuals according to their dietary intakes and the FFQ gives a good quantitative measurement of key dietary components....

  8. Caregiver's Feeding Styles Questionnaire. Establishing cutoff points.

    Science.gov (United States)

    Hughes, Sheryl O; Cross, Matthew B; Hennessy, Erin; Tovar, Alison; Economos, Christina D; Power, Thomas G

    2012-02-01

    Researchers use the Caregiver's Feeding Styles Questionnaire (CFSQ) to categorize parent feeding into authoritative, authoritarian, indulgent, and uninvolved styles. The CFSQ assesses self-reported feeding and classifies parents using median splits which are used in a substantial body of parenting literature and allow for direct comparison across studies on dimensions of demandingness and responsiveness. No national norms currently exist for the CFSQ. This paper establishes and recommends cutoff points most relevant for low-income, minority US samples that researchers and clinicians can use to assign parents to feeding styles. Median scores for five studies are examined and the average across these studies reported.

  9. Dimensional structure of the Frankfurt Complaint Questionnaire.

    Science.gov (United States)

    Loas, Gwenolé; Yon, Valérie; Brien, Denis

    2002-01-01

    The Frankfurt Complaint Questionnaire (FCQ) was designed to evaluate the subjective symptoms of schizophrenics. Several validation studies of the FCQ using principal components analyses (PCA) have shown one-, two-, or four-factor solutions. The present study was conducted using FCQ data on 310 schizophrenics who met the ICD-10 criteria for F20 (schizophrenia) disorder. Using several guidelines to select the number of factors, the PCA yielded one factor. This result suggests a unidimensionality underlying FCQ items. A new scale comprising 24 items was derived from those items with higher weights in the first factor.

  10. Questionnaires for measuring physical activity in the elderly

    Directory of Open Access Journals (Sweden)

    Tânia Bertoldo Benedetti

    2006-12-01

    Full Text Available The identifi cation of the best amount of physical activity is fundamental so that coherent physical activity practices can be advised regarding the amount, intensity, and frequency, as well as intervention programs can be built to minimize and control problems from functional decline with age. Amongst the methods and techniques, questionnaires have been the most used tool to evaluate physical activity and energy expenditure. Thus, the present study proposed to evaluate psychometric characteristics, advantages and limitations of questionnaires that measure physical activity level in the elderly. A literature review in electronic databases was performed using Ovid Medline and also in personal fi les. After identifying the questionnaires, a new search was run. Six questionnaires were found, and their characteristics were presented. The Baecke and the IPAQ questionnaires are the only forms translated into Portuguese and validated. The IPAQ seemed to show the best conditions to be applied in aged Brazilians. Thus, the questionnaires evaluating physical activity level in the elderly population in Brazil have good reliability, but low validity. RESUMO Identificar a quantidade ideal de atividade física é fundamental para que se possa orientar práticas coerentes em relação à quantidade, intensidade e freqüência, bem como construir programas de intervenções para minimizar e controlar os problemas relacionados com o declínio funcional em idosos. Dentre os métodos e técnicas, os questionários têm sido os mais empregados para avaliar a atividade física e o gasto energético. Assim, o presente estudo objetivou avaliar as características, origens, aspectos psicométricos, vantagens e limitações de questionários que medem o nível de atividade física em idosos. Realizou-se umarevisão bibliográfi ca nos bancos de dados eletrônicos: Ovid Medline e o acervo bibliográfi co pessoal. Após a identifi cação dos instrumentos, realizou

  11. Development and Initial Psychometric Evaluation of the Patient Perspective of Arrhythmia Questionnaire

    Science.gov (United States)

    Wood, Kathryn A.; Stewart, Anita L.; Drew, Barbara J.; Scheinman, Melvin M.; Froëlicher, Erika S.

    2010-01-01

    There are no disease-specific questionnaires to measure patient sensitive outcomes in arrhythmia patients. We report the development and preliminary psychometric testing of the Patient Perception of Arrhythmia Questionnaire (PPAQ). The PPAQ was developed using formative research, exploratory factor analysis, expert review, pilot study, and regression. The PPAQ measures frequency and duration of episodes, symptoms, impact on daily activities, and restricted activity days. After preliminary content validation, the responsiveness of the PPAQ was tested in 103 arrhythmia patients. The measures showed good sensitivity and reliability. Preliminary construct validation was supported by significant differences (ppsychometrics and could be useful in future studies of arrhythmia patients. PMID:19701927

  12. Questionnaire 5YR 2013 - Thank you

    CERN Multimedia

    Staff Association

    2013-01-01

    One thousand four hundred and sixty-three of you, i.e., some 58 % of staff members (or clearly more if we take account of staff absent during the month of October), responded to our questionnaire on the upcoming Five-yearly review. This is a great success, because the response rate is significantly higher than in 2003 or 2008, when only about 50 % replied. After having checked the representativeness of the replies with regard to certain key variables, the detailed analysis of the results has now started. At public meetings scheduled for the second week of February 2014, we plan to share with you the information that your delegates have distilled from the answers to the questionnaire. On that occasion you will be able to give your feedback. Your active participation in these meetings will allow us to consolidate the demands we will propose in the consultation process with Management for inclusion in the list of topics to be addressed by the Director-General. Indeed, the Director-General must provide a menu o...

  13. Dermatophytosis in zoo macropods: a questionnaire study.

    Science.gov (United States)

    Boulton, Katie Alyce; Vogelnest, Linda Jean; Vogelnest, Larry

    2013-09-01

    Limited published data are available on dermatophytosis in zoo macropods, despite anecdotal reports of disease occurrence and recurrent mob outbreaks. The aim of this questionnaire study was to analyze data from Australian and international zoos to evaluate estimated disease prevalence in zoos housing macropods, affected macropod species, causative organisms, predisposing factors, clinical presentations, diagnostics, treatments, and disease risk management. Two questionnaires (initial detailed and subsequent brief) were distributed via email to zoo veterinarians, with an estimated response rate of 23%. The overall estimated disease prevalence from responding zoos was 28%, with 73% of responding Australian zoos and 14% of responding non-Australian zoos reporting disease. The first cases of confirmed and suspected dermatophytosis in several macropod species and in association with Trichophyton verrucosum and Trichophyton mentagrophytes var. nodulare are reported, with young red kangaroos (Macropus rufus) appearing predisposed. Diagnosis was most commonly based on fungal culture or presumptively on typical clinical signs of minimally/nonpruritic alopecia, crusting, and scaling distributed most frequently on the tail, pinnae, and hind limbs. Both disease resolution without treatment and resolution after an average of 1 to 2 mo of treatment were reported.

  14. Resident training in pathology: Results of questionnaires

    Directory of Open Access Journals (Sweden)

    İpek Işık GÖNÜL

    2008-01-01

    Full Text Available The aim of this study is to discuss the training of pathology residents from the points of wave of themselves and their tutors and reveal the problems.For this purpose, representatives of 4 Universities, 5 State hospitals and Gülhane Military Medical Academy have prepared 2 types of questionnaires in order to the serving capacities of their institutions and the opinions of the tutors working in that departments on training of pathology residents.According to the results, the number of biopsy and cytological materials together with number of faculty is sufficient for all institutions. Both histochemistry and immunohistochemistry have been applied in all institutions. However, only one state hospital has been performing immunoflourescence technique. It is noticeable to see 2 state hospitals do not have any documents on written job description, which summarizes the authority and responsibility of the pathology residents. Another significant conclusion is that the answers of the tutors for the assistant's job description and their responsibility in the training process are very heterogeneous. Time spent for gross examination by tutors was found to be insufficient by 58% of themselves. Although “written feedbacks for residents and tutors” is only being applied in 2 Universities, the majority of the tutors who have participated in the questionnaire have agreed upon the necessity of them for all institutions (95.4% and 93.8%, respectively.

  15. Construct validity of multidimensional personality questionnaire (MPQ

    Directory of Open Access Journals (Sweden)

    Mitrović Dušanka

    2007-01-01

    Full Text Available The paper presents two studies aimed at the examination of the factor structure of The Multidimensional Personality Questionnaire (MPQ and joint factor structure of the scales of MPQ and SPSRQ (The Sensitivity to Punishment and Sensitivity to Reward Questionnaire. In the first research conducted on the sample of 1127 participants of both sexes, age 18 to 67, the results of the principal component analysis of the MPQ scales point to the existence of three higher-order dimensions, named General Adaptedness, Psychopathic Tendencies and Negative Emotionality. These dimensions correspond to the dimensions of the Eysenck’s PEN model to the greater extent than they achieve the assumed similarity with the dimensions of the Reinforcement Sensitivity Theory. In the second study conducted on the sample of 199 respondents of both sexes, age 18 to 59, the results of the joint principal component analysis of the MPQ and SPSRQ scales point to the existence of three higher order dimensions, which correspond to the Tellegen’s Positive Emotionality, Negative Emotionality, and Constraint. .

  16. Detecting exacerbations using the Clinical COPD Questionnaire

    Directory of Open Access Journals (Sweden)

    Trappenburg Jaap CA

    2010-09-01

    Full Text Available Abstract Background Early treatment of COPD exacerbations has shown to be important. Despite a non-negligible negative impact on health related quality of life, a large proportion of these episodes is not reported (no change in treatment. Little is known whether (low burden strategies are able to capture these unreported exacerbations. Methods The Clinical COPD Questionnaire (CCQ is a short questionnaire with great evaluative properties in measuring health status. The current explorative study evaluates the discriminative properties of weekly CCQ assessment in detecting exacerbations. Results In a multicentre prospective cohort study, 121 patients, age 67.4 ± 10.5 years, FEV1 47.7 ± 18.5% pred were followed for 6 weeks by daily diary card recording and weekly CCQ assessment. Weeks were retrospectively labeled as stable or exacerbation (onset weeks using the Anthonisen symptom diary-card algorithm. Change in CCQ total scores are significantly higher in exacerbation-onset weeks, 0.35 ± 0.69 compared to -0.04 ± 0.37 in stable weeks (p Conclusions Weekly CCQ assessment is a promising, low burden method to detect unreported exacerbations. Further research is needed to validate discriminative performance and practical implications of the CCQ in detecting exacerbations in daily care.

  17. Desenvolvimento de um questionário de freqüência alimentar e caracterização do padrão de consumo dos trabalhadores de baixo nível sócio-econômico da cidade de Goiânia, Estado de Goiás, Brasil Development of a food frequency questionnaire (FFQ and characterization of the food pattern consumption for low - income workers in the city of Goiânia, Goiás State, Brazil

    Directory of Open Access Journals (Sweden)

    Maria Luiza Ferreira Stringhini

    2005-03-01

    Full Text Available Um questionário de freqüência de consumo alimentar (QFA foi planejado para avaliar a freqüência média de consumo de alguns alimentos e caracterizar o padrão alimentar entre os trabalhadores. Uma lista de alimentos consumidos e as porções servidas, usualmente, foram obtidas através de prévias entrevistas locais, usando-se o recordatório de 24 horas e o questionário de freqüência. Uma lista foi elaborada com 127 alimentos e a composição nutricional foi calculada utilizando-se o programa DietPro versão 3.0. O QFA foi aplicado, por duas vezes, em cada indivíduo num período de seis meses. Para caracterizar o padrão de consumo alimentar, os alimentos mais freqüentemente mencionados foram identificados. Foram estudados 104 trabalhadores selecionados ao acaso. Os itens consumidos, no mínimo uma vez ao dia, por 50% dos trabalhadores foram o pão branco, margarina, café preto, açúcar branco, feijão roxinho e arroz branco. A variedade dos alimentos diariamente consumidos foi pequena. Os 30 principais alimentos básicos diários variaram de menos que 1,5 a 92%. Este questionário é um instrumento de fácil aplicação para estudar o consumo alimentar de população semelhante ao do presente trabalhoA food-frequency questionnaire (FFQ was designed to assess the average consumption frequency of food items and to characterize the food pattern among workers. A list of consumed food and usual serving sizes was compiled from previous local survey, using single 24 hours dietary recalls and frequency questionnaires. The list was composed of 127 items and the nutrient composition was calculated by the computer program DietPro version 3.0. The FFQ was administered to each subject twice in a period of six months. To characterize food pattern consumption, the most frequently mentioned foods were identified. One hundred and four (104 workers were studied, randomly selected. Items consumed at least once a day by 50% of the workers were: white

  18. Development of a food frequency questionnaire (FFQ and characterization of the food pattern consumption for low - income workers in the city of Goiânia, Goiás State, Brazil = Desenvolvimento de um questionário de freqüência alimentar e caracterização do padrão de consumo dos trabalhadores de baixo nível sócio-econômico da cidade de Goiânia, Estado de Goiás, Brasil

    Directory of Open Access Journals (Sweden)

    Maria Luiza Ferreira Stringhini

    2005-01-01

    Full Text Available A food-frequency questionnaire (FFQ was designed to assess the average consumption frequency of food items and to characterize the food pattern among workers. A list of consumed food and usual serving sizes was compiled from previous local survey, using single 24 hours dietary recalls and frequency questionnaires. The list was composed of 127 items and the nutrient composition was calculated by the computer program DietPro version 3.0. The FFQ was administered to each subject twice in a period of six months. To characterize food pattern consumption, the most frequently mentioned foods were identified. One hundred and four (104 workers were studied, randomly selected. Items consumed at least once a day by 50% of the workers were: white bread, margarine, black coffee, white sugar, red beans and white rice. Variety of daily consumed foods was small. The top 30 foods on a daily basis ranged from less than 1.5 to 92%. This FFQ is easy to administer when studying the dietary intake of low-income populations.Um questionário de freqüência de consumo alimentar (QFA foi planejado para avaliar a freqüência média de consumo de alguns alimentos e caracterizar o padrão alimentar entre os trabalhadores. Uma lista de alimentos consumidos e as porções servidas, usualmente, foram obtidas através de prévias entrevistas locais, usando-se orecordatório de 24 horas e o questionário de freqüência. Uma lista foi elaborada com 127 alimentos e a composição nutricional foi calculada utilizando-se o programa DietPro versão 3.0. O QFA foiaplicado, por duas vezes, em cada indivíduo num período de seis meses. Para caracterizar o padrão de consumo alimentar, os alimentos mais freqüentemente mencionados foram identificados. Foram estudados 104 trabalhadores selecionados ao acaso. Os itens consumidos, no mínimo uma vez ao dia, por 50% dos trabalhadores foram o pão branco, margarina, café preto, açúcar branco, feijão roxinho e arroz branco. A variedade

  19. Frequency noise in frequency swept fiber laser

    DEFF Research Database (Denmark)

    Pedersen, Anders Tegtmeier; Rottwitt, Karsten

    2013-01-01

    This Letter presents a measurement of the spectral content of frequency shifted pulses generated by a lightwave synthesized frequency sweeper. We found that each pulse is shifted in frequency with very high accuracy. We also discovered that noise originating from light leaking through the acousto...

  20. Frequency noise in frequency swept fiber laser.

    Science.gov (United States)

    Pedersen, Anders Tegtmeier; Rottwitt, Karsten

    2013-04-01

    This Letter presents a measurement of the spectral content of frequency shifted pulses generated by a lightwave synthesized frequency sweeper. We found that each pulse is shifted in frequency with very high accuracy. We also discovered that noise originating from light leaking through the acousto- optical modulators and forward propagating Brillouin scattering appear in the spectrum.

  1. Illness denial questionnaire for patients and caregivers

    Directory of Open Access Journals (Sweden)

    Rossi Ferrario S

    2017-03-01

    Full Text Available Silvia Rossi Ferrario,1 Ines Giorgi,2 Paola Baiardi,3 Laura Giuntoli,4 Gianluigi Balestroni,1 Paola Cerutti,1 Marina Manera,2 Paola Gabanelli,2 Valentina Solara,5 Roberta Fornara,6 Michela Luisetti,1 Pierangela Omarini,1 Giovanna Omarini,1 Giulio Vidotto4 1Psychology Unit, Istituti Clinici Scientifici Maugeri SpA SB, Veruno, NO, Italy; 2Psychology Unit, 3Scientific Direction, Istituti Clinici Scientifici Maugeri SpA SB, Pavia, Italy; 4Department of General Psychology, University of Padova, Padova, Italy; 5Department of Neurology, ALS Centre, “Maggiore della Carita`” University Hospital, Novara, Italy; 6Psychology Unit, SS Trinità Hospital, Borgomanero, NO, Italy Purpose: Interest in assessing denial is still present, despite the criticisms concerning its definition and measurement. We tried to develop a questionnaire (Illness Denial Questionnaire, IDQ assessing patients’ and caregivers’ denial in relation to their illness/disturbance. Patients and methods: After a preliminary study, a final version of 24 dichotomous items (true/false was selected. We hypothesized a theoretical model with three dimensions: denial of negative emotions, resistance to change, and conscious avoidance, the first two composing the actual Denial and the last representing an independent component of the illness denial behavior. The IDQ was administered to 400 subjects (219 patients and 181 caregivers together with the Anxiety–Depression Questionnaire – Reduced form (AD-R, in order to assess concurrent validity. Confirmatory factor analysis (CFA, internal consistency indices (Cronbach’s α and McDonald’s ω, and test–retest analysis were performed. Results: CFA and internal consistency indices (Cronbach’s α: 0.87–0.96 indicated a clear and meaningful three-factor structure of IDQ, for both patients and caregivers. Further analyses showed good concurrent validity, with Denial and its subscale negatively associated with anxiety and depression and

  2. Strengths and difficulties questionnaire (SDQ: a study of school children in Ribeirão Preto

    Directory of Open Access Journals (Sweden)

    Cury Camilo Ramos

    2003-01-01

    Full Text Available OBJECTIVE: The objective of this study is to investigate possible child psychiatric disorders using the strengths and difficulties questionnaire (SDQ. METHOD: SDQ is a questionnaire that screens child mental health problems, comprising a total of 25 items divided in five subscales: emotional problems, hyperactivity, relationship, conduct and pro-social behavior, with five items in each subscale. We also used the impact supplement that evaluates the impairment caused by symptoms. Out of 143 children randomly chosen from a public school of Ribeirão Preto, 107 questionnaires were correctly filled in by parents. Teachers received 114 questionnaires (regarding children with parents' consent, and 108 questionnaires were correctly filled in. As a final sample, we obtained 112 questionnaires answered by parents or teachers. RESULTS: In the questionnaires answered by the parents, we obtained high scorings such as 30.8% for emotional symptoms, 17,7% for conduct disorders, 16.8% for hyperactivity, 14% for interpersonal relationships, 18,7% for the total scores and 10.2% for the impact supplement. Questionnaires answered by the teachers had 1.83% for emotional symptoms, 8.25% for conduct disorders, 8.25% for hyperactivity, 2.75% for interpersonal relationships, 8.25% for the total scoring and 4.58% for the impact supplement. Combining the results obtained from parents and teachers we have diagnostic hypotheses in the frequencies of 7.14% for emotional disorders, 9.82% for conduct disorders, and 12.5% for psychiatric disorder not otherwise specified and no combination was noted between parents and teachers for hyperactivity. Mean age was 8.18 years, with 63% of the children being male and 37% female. CONCLUSION: SDQ can be useful for a preliminary screening in the investigation of possible psychiatric disorders in childhood.

  3. 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

  4. Development of the Young Spine Questionnaire

    DEFF Research Database (Denmark)

    Lauridsen, Henrik Hein; Hestbæk, Lise

    model of Wilson and Cleary (1995) and divided the YSQ into two parts: part one included spinal prevalence estimates (including pictures of spinal area) and part two questions regarding pain, activity restrictions, care seeking behaviour and influence of parental back trouble. During the developing phase......Title Development of the Young Spine Questionnaire Authors & Affiliations Henrik Hein Lauridsen1, Lise Hestbæk1,2 1. Research Unit for Clinical Biomechanics, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Clinical Locomotion Network, Campusvej 55, DK-5230...... Odense M, Denmark 2. Nordic Institute of Chiropractic and Clinical Biomechanics, Clinical Locomotion Network, Forskerparken 10A, 5230 Odense M, Denmark Background Back pain in children is common and early onset of back pain has been shown to increase the risk of back pain significantly in adulthood...

  5. A questionnaire to assess social stigma.

    Science.gov (United States)

    Tavormina, Maurilio Giuseppe Maria; Tavormina, Romina; Nemoianni, Eugenio; Tavormina, Giuseppe

    2015-09-01

    Psychiatric patients often suffer for two reasons: due to the illness and due to the social stigma of mental illness, that increases the uneasiness and psychic pain of the person suffering from serious psychiatric disorder. This unwell person is often the object of stigma because he is "different" from others, and he also can be margenalised by society. In this study we intend to assess whether these margenalising attitudes might be also present among mental health professionals who have presented psychic problems in a previous period of their life, against sick persons suffering of the same illness even if he is a mental health professional. Two questionnaires have been developed, one for professionals and another for the patients, with the aim of identifying these marginalising attitudes. We intend that this study shall be a multicenter, observational and international study, promoted by the Mental Health Dept. of Naples (ASL Naples 3 South, Italy).

  6. Cognitive interviews to test and refine questionnaires.

    Science.gov (United States)

    García, Alexandra A

    2011-01-01

    Survey data are compromised when respondents do not interpret questions in the way researchers expect. Cognitive interviews are used to detect problems respondents have in understanding survey instructions and items, and in formulating answers. This paper describes methods for conducting cognitive interviews and describes the processes and lessons learned with an illustrative case study. The case study used cognitive interviews to elicit respondents' understanding and perceptions of the format, instructions, items, and responses that make up the Diabetes Symptom Self-Care Inventory (DSSCI), a questionnaire designed to measure Mexican Americans' symptoms of type 2 diabetes and their symptom management strategies. Responses to cognitive interviews formed the basis for revisions in the format, instructions, items, and translation of the DSSCI. All those who develop and revise surveys are urged to incorporate cognitive interviews into their instrumentation methods so that they may produce more reliable and valid measurements.

  7. Children's Sleep Habits Questionnaire - Infant Version.

    Science.gov (United States)

    Dias, Cláudia Castro; Figueiredo, Bárbara; Pinto, Tiago Miguel

    2017-08-23

    This study proposed a version of the Children's Sleep Habits Questionnaire for infants under 12 months (CSHQ-I). The sample was comprised of 299 infants, aged between 2 weeks and 12 months. Exploratory factor analysis revealed four subscales: Bedtime Resistance, Sleep Anxiety, Positive Sleep Habits, and Daytime Sleepiness. The CSHQ-I total scale presented good test-retest reliability and internal consistency. The CSHQ-I also showed good concurrent validity, with significant associations found between the CSHQ-I total scale and subscales and a measure of infant sleep-wake behaviors. The present study suggested the CSHQ-I as a reliable instrument to assess sleep problems in infants during the first year of life. Copyright © 2017 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.

  8. A Pilot Survey of Food Frequencies, Meal Frequencies and Meal Patterns of Preschool Children in East Los Angeles.

    Science.gov (United States)

    Lewis, Jane S.; And Others

    The food frequency, meal frequency, and meal patterns of a group of Mexican American children attending Head Start in East Los Angeles and their siblings were studied. Fifty dietary questionnaires in English and in Spanish with written instructions were distributed to parents. Parents were asked to record for a 3 day period the eating time, type…

  9. Automation of Food Questionnaires in Medical Studies: a state-of-the-art review and future prospects.

    Science.gov (United States)

    Falomir, Zoe; Arregui, María; Madueño, Francisco; Corella, Dolores; Coltell, Óscar

    2012-10-01

    Applications for automating the most commonly used dietary surveys in nutritional research, Food Frequency Questionnaires (FFQs) and 24 h Dietary Recalls (24HDRs), are reviewed in this paper. A comprehensive search of electronic databases was carried out and findings were classified by a group of experts in nutrition and computer science into: (i) Computerized Questionnaires and Web-based Questionnaires; (ii) FFQs and 24HDRs and combinations of both; and (iii) interviewer-administered or self-administered questionnaires. A discussion on the classification made and the works reported is included. Finally, works that apply innovative technologies are outlined and the future trends for automating questionnaires in nutrition are identified. Copyright © 2012 Elsevier Ltd. All rights reserved.

  10. Development of a cohesion questionnaire for youth: the Youth Sport Environment Questionnaire.

    Science.gov (United States)

    Eys, Mark; Loughead, Todd; Bray, Steven R; Carron, Albert V

    2009-06-01

    The purpose of the current study was to initiate the development of a psychometrically sound measure of cohesion for youth sport groups. A series of projects were undertaken in a four-phase research program. The initial phase was designed to garner an understanding of how youth sport group members perceived the concept of cohesion through focus groups (n = 56), open-ended questionnaires (n = 280), and a literature review. In Phase 2, information from the initial projects was used in the development of 142 potential items and content validity was assessed. In Phase 3, 227 participants completed a revised 87-item questionnaire. Principal components analyses further reduced the number of items to 17 and suggested a two-factor structure (i.e., task and social cohesion dimensions). Finally, support for the factorial validity of the resultant questionnaire was provided through confirmatory factor analyses with an independent sample (n = 352) in Phase 4. The final version of the questionnaire contains 16 items that assess task and social cohesion in addition to 2 negatively worded spurious items. Specific issues related to assessing youth perceptions of cohesion are discussed and future research directions are suggested.

  11. Systematic review: questionnaires for assessment of gastroesophageal reflux disease.

    Science.gov (United States)

    Bolier, E A; Kessing, B F; Smout, A J; Bredenoord, A J

    2015-01-01

    Numerous questionnaires with a wide variety of characteristics have been developed for the assessment of gastroesophageal reflux disease (GERD). Four well-defined dimensions are noticeable in these GERD questionnaires, which are symptoms, response to treatment, diagnosis, and burden on the quality of life of GERD patients. The aim of this review is to develop a complete overview of all available questionnaires, categorized per dimension of the assessment of GERD. A systematic search of the literature up to January 2013 using the Pubmed database and the Embase database, and search of references and conference abstract books were conducted. A total number of 65 questionnaires were extracted and evaluated. Thirty-nine questionnaires were found applicable for the assessment of GERD symptoms, three of which are generic gastrointestinal questionnaires. For the assessment of response to treatment, 14 questionnaires were considered applicable. Seven questionnaires with diagnostic purposes were found. In the assessment of quality of life in GERD patients, 18 questionnaires were found and evaluated. Twenty questionnaires were found to be used for more than one assessment dimension, and eight questionnaires were found for GERD assessment in infants and/or children. A wide variety of GERD questionnaires is available, of which the majority is used for assessment of GERD symptoms. Questionnaires differ in aspects such as design, validation and translations. Also, numerous multidimensional questionnaires are available, of which the Reflux Disease Questionnaire is widely applicable. We provided an overview of GERD questionnaires to aid investigators and clinicians in their search for the most appropriate questionnaire for their specific purposes. © 2013 International Society for Diseases of the Esophagus.

  12. Can a structured questionnaire identify patients with reduced renal function?

    DEFF Research Database (Denmark)

    Azzouz, Manal; Rømsing, Janne; Thomsen, Henrik

    2014-01-01

    To evaluate a structured questionnaire in identifying outpatients with renal dysfunction before MRI or CT in various age groups.......To evaluate a structured questionnaire in identifying outpatients with renal dysfunction before MRI or CT in various age groups....

  13. Predicting multicultural effectiveness of international students : the Multicultural Personality Questionnaire

    NARCIS (Netherlands)

    Van Oudenhoven, JP; Van der Zee, KI

    2002-01-01

    The present study considered the reliability and validity of the 78-item revised version of the Multicultural Personality Questionnaire, a multidimensional instrument aimed at measuring multicultural effectiveness of expatriate employees and students. The questionnaire includes scales for cultural e

  14. The Development and Use of the Behavioral Pediatrics Questionnaire.

    Science.gov (United States)

    Spiegel, Nancy H.; And Others

    1988-01-01

    The development and use of a questionnaire assessing interpersonal attitudes relevant to pediatric practice are described. The Behavioral Pediatrics Questionnaire measures a wide array of beliefs ranging from attitudes toward physical disabilities to parenting and empathy. (TJH)

  15. Predicting multicultural effectiveness of international students : the Multicultural Personality Questionnaire

    NARCIS (Netherlands)

    Van Oudenhoven, J.P.; Van der Zee, K.I.

    2002-01-01

    The present study considered the reliability and validity of the 78-item revised version of the Multicultural Personality Questionnaire, a multidimensional instrument aimed at measuring multicultural effectiveness of expatriate employees and students. The questionnaire includes scales for cultural

  16. Patient health questionnaire. Using a patient-focused assessment tool.

    OpenAIRE

    Mitchell, J. D.

    1996-01-01

    A patient health questionnaire was developed for use in family practice to help identify lifestyle risk factors, assess health care needs, and better understand patients. This article discusses the questionnaire's development and practical application.

  17. Estimates of Fakeability on the Eysenck Personality Questionnaire.

    Science.gov (United States)

    Loo, Robert; Wudel, Pam

    1979-01-01

    The fakeability of scales on the Eysenck Personality Questionnaire was estimated with a homogeneous sample of female undergraduates. The Questionnaire appeared to be moderately susceptible to faking, at least in the fake good condition. (Author)

  18. Pregnancy in multiple sclerosis: a questionnaire study.

    Directory of Open Access Journals (Sweden)

    Nadja Borisow

    Full Text Available BACKGROUND: Multiple sclerosis (MS preferentially affects females at childbearing age. For this reason patients and treating physicians were frequently confronted with questions concerning family planning, pregnancy and birth. OBJECTIVE: The aim of this study was to evaluate the expertise about pregnancy related topics in multiple sclerosis of neurologists in private practice. METHODS: We developed a survey with 16 multiple choice questions about pregnancy related topics and sent it to neurologists in private practice in Berlin, Germany. RESULTS: 56 completed questionnaires were sent back. 54% of all questions were answered correctly, 21% of the questions were answered with "I don't know". Correct answers were more often given by physicians who treat more than 400 MS patients per year (p = 0.001. Further positive associations were found for assumed relevance of the topic (p = 0.002 and the degree of counseling (p<0.001. CONCLUSION: To provide a comprehensive counseling, MS patients with desire for children should be counseled by physicians with a lot of experience in MS treatment.

  19. Introducing the Occupational Balance Questionnaire (OBQ).

    Science.gov (United States)

    Wagman, Petra; Håkansson, Carita

    2014-05-01

    The concept of occupational balance is frequently used in occupational therapy but the fact that it has been defined and measured differently is a limitation. This article introduces the Occupational Balance Questionnaire (OBQ), which focuses on satisfaction with the amount and variation of occupations. It consists of 13 items measured on six-step ordinal scales. It has shown good content validity in a sample of 21 occupational therapists but other psychometric properties have not been investigated. The aim was to investigate the OBQ regarding internal consistency, test-retest reliability, and floor/ceiling effects. The OBQ was administered twice to a sample selected through convenience sampling. Internal consistency was investigated by Cronbach's alpha and test-retest reliability analysed with Spearman's Rho correlation for the total score and weighted kappa on each item. Potential floor/ceiling effects were explored by checking for the percentage of participants who scored lowest and highest. The results demonstrated that the OBQ has good internal consistency (Cronbach's alpha 0.936) and sufficient test-retest reliability (Spearman's Rho for the total score was 0.926) and, thus, seems stable over time. No floor or ceiling effect was detected. The OBQ therefore showed promising reliability, although further instrument development studies to examine its construct validity are required.

  20. Methamphetamine and paranoia: the methamphetamine experience questionnaire.

    Science.gov (United States)

    Leamon, Martin H; Flower, Keith; Salo, Ruth E; Nordahl, Thomas E; Kranzler, Henry R; Galloway, Gantt P

    2010-01-01

    Paranoia in methamphetamine (MA) users is not well characterized or understood. To investigate this phenomenon, we created the Methamphetamine Experience Questionnaire (MEQ), and tested its reliability and validity in assessing MA-induced paranoia. We administered the MEQ to 274 MA-dependent subjects. Of the total subjects, 45% (123) first experienced paranoia with MA use; 55% did not. Obtaining or using a weapon while paranoid was common (37% and 11% of subjects with MA-induced paranoia, respectively). Test-retest and inter-rater reliability for MA-induced paranoia showed substantial agreement (kappa = .77, p paranoia occurred more often with intravenous use of MA, and subsequent episodes at higher doses. There was modest correlation between paranoia on the MEQ and the Brief Symptom Inventory (BSI) paranoid ideation scale (rho = .27, p paranoia on the MEQ and the BSI depression scale (rho = .14, p = .07). The MEQ provides useful information on drug use variables that contribute to paranoia commonly associated with MA use. (Am J Addict 2010;00:1-14).

  1. Methamphetamine and Paranoia: The Methamphetamine Experience Questionnaire

    Science.gov (United States)

    Leamon, Martin H.; Flower, Keith; Salo, Ruth E.; Nordahl, Thomas E.; Kranzler, Henry R.; Galloway, Gantt P.

    2011-01-01

    Paranoia in methamphetamine (MA) users is not well characterized or understood. To investigate this phenomenon, we created the Methamphetamine Experience Questionnaire (MEQ), and tested its reliability and validity in assessing MA-induced paranoia. METHODS: We administered the MEQ to 274 MA-dependent subjects. RESULTS: 45% (123) subjects first experienced paranoia with MA use; 55% did not. Obtaining or using a weapon while paranoid was common (37% and 11% of subjects with MA-induced paranoia, respectively). Test-retest and inter-rater reliability for MA-induced paranoia showed substantial agreement (kappa = 0.77, p < 0.05 and kappa = 0.80, p < 0.05, respectively). First episodes of paranoia occurred more often with intravenous use of MA, and subsequent episodes at higher doses. There was modest correlation between paranoia on the MEQ and the BSI paranoid ideation scale (rho = 0.27, p < 0.05). As expected, there was a poor correlation between paranoia on the MEQ and the BSI depression scale (rho = 0.14, p = 0.07). The MEQ provides useful information on drug use variables that contribute to paranoia commonly associated with MA use. PMID:20163388

  2. Personal resource questionnaire: a systematic review.

    Science.gov (United States)

    Tawalbeh, Loai I; Ahmad, Muayyad M

    2013-09-01

    Social support is a key nursing variable. No review has yet systematically assessed the effectiveness of the personal resource questionnaire (PRQ) as a measure of perceived social support. This article reviewed nine previous studies that used the PRQ (Brandt & Weinert, 1981). Completed studies were identified through searches of indexes that included PubMed, the Cumulative Index for Nursing and EBSCO host, and Ovid. Studies that reported PRQ scores, sample descriptions, and sample sizes and that tested the relationship between the PRQ and study variables were included in the present review. Three other studies were included that did not report on PRQ correlations with other health variables. The included studies addressed a variety of health problems and different population in different settings. Cronbach's alphas for the included studies ranged from .87 to .93, supporting the internal consistency of the PRQ. Hypothesized relationships between the PRQ and study variables including health promotion behavior, self-care behavior, self-efficacy, self-esteem, stress, depression, loneliness, pain, and disability were supported, providing positive evidence for PRQ construct validity. Included studies used the PRQ to address disparate populations in terms of age, socioeconomic status, ethnicity, and educational background. This review found the PRQ to be a reliable and valid tool for measuring perceived social support across a wide range of populations. Further studies are necessary to examine the relationship between social support and selected demographics among populations with different cultural backgrounds.

  3. Appraisal of dental anxiety and fear questionnaires: a review.

    NARCIS (Netherlands)

    Schuurs, A.H.B.; Hoogstraten, J.

    1993-01-01

    This article reviews and assesses six dental anxiety and fear questionnaires. The construct aimed at by the questionnaires, the data collected, their reliability, validity and normative scores are considered. Some attention is given to the correlations between the questionnaires, their ambiguity,

  4. A Tool for Preventing Teamwork Failure: the TFP Questionnaire

    DEFF Research Database (Denmark)

    Qvist, Palle; Rebollar, Rubeén; Lidón, Iván

    2010-01-01

    This paper presents the process used to devise the Teamwork Failure Prevention Questionnaire (TFP Questionnaire), a tool that allows teams with problems in functioning to be detected early. The TFP Questionnaire was formulated in a project management course at the University of Zaragoza (Spain...

  5. 78 FR 47749 - Submission of Questionnaire for OMB Review

    Science.gov (United States)

    2013-08-06

    ... COMMISSION Submission of Questionnaire for OMB Review AGENCY: United States International Trade Commission... request for approval of a questionnaire to the Office of Management and Budget for review. Purpose of Information Collection: The information requested by the questionnaire is for use by the Commission...

  6. A Tool for Preventing Teamwork Failure: the TFP Questionnaire

    DEFF Research Database (Denmark)

    Qvist, Palle; Rebollar, Rubeén; Lidón, Iván

    2010-01-01

    This paper presents the process used to devise the Teamwork Failure Prevention Questionnaire (TFP Questionnaire), a tool that allows teams with problems in functioning to be detected early. The TFP Questionnaire was formulated in a project management course at the University of Zaragoza (Spain...

  7. Establishing the Validity and Reliability of Course Evaluation Questionnaires

    Science.gov (United States)

    Kember, David; Leung, Doris Y. P.

    2008-01-01

    This article uses the case of designing a new course questionnaire to discuss the issues of validity, reliability and diagnostic power in good questionnaire design. Validity is often not well addressed in course questionnaire design as there are no straightforward tests that can be applied to an individual instrument. The authors propose the…

  8. 19 CFR 207.63 - Circulation of draft questionnaires.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Circulation of draft questionnaires. 207.63... SUBSIDIZED EXPORTS TO THE UNITED STATES Five-Year Reviews § 207.63 Circulation of draft questionnaires. (a) The Director shall circulate draft questionnaires to the parties for comment in each full review. (b...

  9. 7 CFR 550.31 - Questionnaires and survey plans.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Questionnaires and survey plans. 550.31 Section 550.31... Agreements Program Management § 550.31 Questionnaires and survey plans. The Cooperator is required to submit to the REE Agency copies of questionnaires and other forms for clearance in accordance with the...

  10. Appraisal of dental anxiety and fear questionnaires: a review.

    NARCIS (Netherlands)

    A.H.B. Schuurs; J. Hoogstraten

    1993-01-01

    This article reviews and assesses six dental anxiety and fear questionnaires. The construct aimed at by the questionnaires, the data collected, their reliability, validity and normative scores are considered. Some attention is given to the correlations between the questionnaires, their ambiguity, th

  11. Epidemiology of erectile dysfunction in hemodialysis patients using IIEF questionnaire

    Directory of Open Access Journals (Sweden)

    Leila Malekmakan

    2011-01-01

    Full Text Available Erectile dysfunction (ED is defined as the inability to attain or maintain an erec-tion sufficient for satisfactory sexual performance. This cross-sectional study was conducted on pa-tients on hemodialysis (HD in Shiraz, Iran, using the International Index of Erectile Dysfunction questionnaire for determination of the frequency and severity of ED in these patients. We used the Chi-square, Mann-Whitney, Kruskal-Wallis and Pearson′s correlation coefficient tests for statis-tical analysis. A total of 73 patients were enrolled into this study. The mean score of ED was 10.3 ± 6.3 (total score 25. The prevalence of ED of various degrees was 87.7%. There was a signi-ficant correlation between different degrees of ED and age (P = 0.002; it was significantly higher in patients older than 50 years (P = 0.005. Also, ED was more common in patients whose Kt/V was <1.2 (P = 0.04. Our study suggests that ED is a major health concern in patients on HD. Improvement of ED may improve their quality of life. Our results can give the basic data for future research in this field.

  12. Multi-frequency excitation

    KAUST Repository

    Younis, Mohammad I.

    2016-03-10

    Embodiments of multi-frequency excitation are described. In various embodiments, a natural frequency of a device may be determined. In turn, a first voltage amplitude and first fixed frequency of a first source of excitation can be selected for the device based on the natural frequency. Additionally, a second voltage amplitude of a second source of excitation can be selected for the device, and the first and second sources of excitation can be applied to the device. After applying the first and second sources of excitation, a frequency of the second source of excitation can be swept. Using the methods of multi- frequency excitation described herein, new operating frequencies, operating frequency ranges, resonance frequencies, resonance frequency ranges, and/or resonance responses can be achieved for devices and systems.

  13. The Development of a Self-Report Questionnaire on Coping with Cyberbullying: The Cyberbullying Coping Questionnaire

    OpenAIRE

    Niels C.L. Jacobs; Trijntje Völlink; Francine Dehue; Lilian Lechner

    2015-01-01

    The negative effects and the continuation of cyberbullying seem to depend on the coping strategies the victims use. To assess their coping strategies, self-report questionnaires (SRQs) are used. However, these SRQs are often subject to several shortcomings: the (single and topological) categorizations used in SRQs do not always adequately differentiate among various coping responses, in addition the strategies of general SRQs fail to accurately measure coping with cyberbullying. This study is...

  14. The Development of a Self-Report Questionnaire on Coping with Cyberbullying: The Cyberbullying Coping Questionnaire

    Directory of Open Access Journals (Sweden)

    Niels C.L. Jacobs

    2015-05-01

    Full Text Available The negative effects and the continuation of cyberbullying seem to depend on the coping strategies the victims use. To assess their coping strategies, self-report questionnaires (SRQs are used. However, these SRQs are often subject to several shortcomings: the (single and topological categorizations used in SRQs do not always adequately differentiate among various coping responses, in addition the strategies of general SRQs fail to accurately measure coping with cyberbullying. This study is therefore aimed to develop a SRQ that specifically measures coping with cyberbullying (i.e., Cyberbullying Coping Questionnaire; CCQ and to discover whether other, not single and topological, categorizations of coping strategies can be found. Based on previous SRQs used in the (cyberbullying (i.e., traditional and cyberbullying literature (i.e., 49 studies were found with three different SRQs measuring coping with traditional bullying, cyberbullying or (cyberbullying items and categorizations were selected, compared and merged into a new questionnaire. In compliance with recommendations from the classical test-theory, a principal component analysis and a confirmatory factor analysis were done, and a final model was constructed. Seventeen items loaded onto four different coping categorizations: mental-, passive-, social-, and confrontational-coping. The CCQ appeared to have good internal consistency, acceptable test-retest reliability, good discriminant validity and the development of the CCQ fulfilled many of the recommendations from classical test-theory. The CCQ omits working in single and topological categorizations and measures cognitive, behavioral, approach and avoidance strategies.

  15. Translating overactive bladder questionnaires in 14 languages.

    Science.gov (United States)

    Acquadro, Catherine; Kopp, Zoe; Coyne, Karin S; Corcos, Jacques; Tubaro, Andrea; Choo, Myung-Soo; Oh, Seung June

    2006-03-01

    Overactive bladder (OAB) affects millions of people worldwide. Identifying patients and measuring OAB's impact on symptom severity and patients' health-related quality-of-life is necessary to ensure proper treatment and facilitate communication among patients, clinicians, and caregivers. To accomplish this, the Overactive Bladder questionnaire (OAB-q) and its subsets instruments, the OAB-q Short-Form and the OAB-V8, were developed in U.S. English. To measure the impact of OAB cross-culturally, we performed the linguistic validation of these instruments in Danish, English (Canada), French (Canada and France), Italian (Switzerland), German (Switzerland), Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Swedish, and Turkish. The linguistic validation was conducted following a rigorous method to ensure conceptual equivalence between the original and its translations. In each country, a specialist monitored the process, which included six steps: (1) two forward translations; (2) comparison and reconciliation of the translations; (3) back-translation; (4) comparison of the source and back-translation; (5) review by one urologist or gynecologist; and (6) a comprehension test using patients. The translation of symptom-related adjectives such as "uncomfortable," "sudden," "accidental," "uncontrollable" proved challenging. The subtle differences in the meaning of symptomatic items increased the difficulties to find equivalents. Issues regarding the appropriateness of certain concepts and idiomatic terms emerged during cognitive debriefing. The terms "urge," "desire," "urination," "commute," "drowsy," and "escape routes" were not retained literally and were replaced by colloquial expressions. The 14 versions of the OAB-q, OAB-q Short-Form, and OAB-V8 were successfully validated linguistically to facilitate data collection cross-culturally and the international comparison of symptom bother and health-related quality of life in patients with OAB.

  16. The St. George's Respiratory Questionnaire in Lymphangioleiomyomatosis

    Institute of Scientific and Technical Information of China (English)

    Kai-feng Xu; Lan Wang; Xin-lun Tian; Yao-song Gui; Min Peng; Bai-qiang Cai; Yuan-jue Zhu

    2010-01-01

    Objective To examine the correlation between the health-related quality of life measured by the St. George's Respiratory Questionnaire (SGRQ) and the commonly used physiological measures in lymphangi-oleiomyomatosis (LAM).Methods This study retrospectively analyzed the SGRQ scores and other measures (the Borg scale of breathlessness at rest, 6-minute walking distance, blood oxygen levels, and pulmonary function) of patients diagnosed and confirmed with LAM. Altogether 38 patients between June 2007 and November 2009 were included.Results The mean values of the SGRQ three components (symptoms, activity, and impacts) and total scores in the LAM patients were 46.95±28.90, 58.47±25.41,47.89±29.66, and 51. 11±26.35, respec-tively. The SGRQ total or component scores were correlated well with the Borg scale of breathlessness, 6-minute walking distance, partial pressure of oxygen in arterial blood, spirometry and diffusion capacity of lung. There were poor correlations between SGRQ score and residual volume or total lung capacity. In our preliminary observation, sirolimus improved the SGRQ total and three component scores and the Borg scale of breathlessness significantly after 101-200 days of treatment (n=6).Conclusions The SGRQ score in LAM is correlated well with physiological measures (Borg scale of breathlessness, 6-minute walking distance, blood oxygen levels, and pulmonary function tests). The SGRQ could therefore be recommended in baseline and follow-up evaluation of patients with LAM. Treatment with sirolimus, an inhibitor of mammalian target of rapamycin, may improve the quality of life and patient's per-ception of breathlessness in LAM.

  17. Validation of a subjective global assessment questionnaire.

    Science.gov (United States)

    Carniel, Maiara Pires; Santetti, Daniele; Andrade, Juliana Silveira; Favero, Bianca Penteado; Moschen, Tábata; Campos, Paola Almeida; Goldani, Helena Ayako Sueno; Dornelles, Cristina Toscani Leal

    2015-01-01

    To validate the Subjective Global Nutritional Assessment (SGNA) questionnaire for Brazilian children and adolescents. A cross-sectional study with 242 patients, aged 30 days to 13 years, treated in pediatric units of a tertiary hospital with acute illness and minimum hospitalization of 24h. After permission from the authors of the original study, the following criteria were observed to obtain the validation of SGNA instruments: translation and backtranslation, concurrent validity, predictive validity, and inter-observer reliability. The variables studied were age, sex, weight and length at birth, prematurity, and anthropometry (weight, height, body mass index, upper arm circumference, triceps skinfold, and subscapular skinfold). The primary outcome was considered as the need for admission/readmission within 30 days after hospital discharge. Statistical tests used included ANOVA, Kruskal-Wallis, Mann-Whitney, chi-square, and Kappa coefficient. According to SGNA score, 80% of patients were considered as well nourished, 14.5% moderately malnourished, and 5.4% severely malnourished. Concurrent validity showed a weak correlation between the SGNA and anthropometric measurements (p<0.001). Regarding predictive power, the main outcome associated with SGNA was length of admission/readmission. Secondary outcomes associated included the following: length of stay at the unit after SGNA, weight and length at birth, and prematurity (p<0.05). The interobserver reliability showed good agreement among examiners (Kappa=0.74). This study validated the SGNA in this group of hospitalized pediatric patients, ensuring its use in the clinical setting and for research purposes in the Brazilian population. Copyright © 2015 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.

  18. Frequency selectivity at very low centre frequencies

    DEFF Research Database (Denmark)

    Orellana, Carlos Andrés Jurado; Pedersen, Christian Sejer; Marquardt, Torsten

    2010-01-01

    A significant factor in the decrease of sensitivity to low-frequency sound is the helicotrema shunt effect. In humans, it causes a slope increase of the middle-ear transfer function (METF) from 6 dB/oct to 12 dB/oct below approximately 50 Hz [Marquardt et al., J.Acoust. Soc. Am. 121, 3628......-3638 (2007)]. Recent experiments showed that the exact frequency varies from individual to individual. Besides, the helicotrema region in the METF has been found to highly influence frequency selectivity for centre frequencies (CFs) below 80 Hz (Jurado and Moore in prep). By using individual METF...... in the shape of the METFs, thought to be affected by the helicotrema impedance. Preliminary analysis indicates that individual differences in the METFs might underlay the observed individual differences in frequency selectivity. Main effects predicted by the calculations are a pronounced flattening off...

  19. Developing questionnaires for educational research: AMEE Guide No. 87.

    Science.gov (United States)

    Artino, Anthony R; La Rochelle, Jeffrey S; Dezee, Kent J; Gehlbach, Hunter

    2014-06-01

    In this AMEE Guide, we consider the design and development of self-administered surveys, commonly called questionnaires. Questionnaires are widely employed in medical education research. Unfortunately, the processes used to develop such questionnaires vary in quality and lack consistent, rigorous standards. Consequently, the quality of the questionnaires used in medical education research is highly variable. To address this problem, this AMEE Guide presents a systematic, seven-step process for designing high-quality questionnaires, with particular emphasis on developing survey scales. These seven steps do not address all aspects of survey design, nor do they represent the only way to develop a high-quality questionnaire. Instead, these steps synthesize multiple survey design techniques and organize them into a cohesive process for questionnaire developers of all levels. Addressing each of these steps systematically will improve the probabilities that survey designers will accurately measure what they intend to measure.

  20. Methodology series module 8: Designing questionnaires andclinical record forms

    Directory of Open Access Journals (Sweden)

    Maninder Singh Setia

    2017-01-01

    Full Text Available As researchers, we often collect data on a clinical record form or a questionnaire. It is an important part of study design. If the questionnaire is not well designed, the data collected will not be useful. In this section of the module, we have discussed some practical aspects of designing a questionnaire. It is useful to make a list of all the variables that will be assessed in the study before preparing the questionnaire. The researcher should review all the existing questionnaires. It may be efficient to use an existing standardized questionnaire or scale. Many of these scales are freely available and may be used with an appropriate reference. However, some may be under copyright protection and permissions may be required to use the same questionnaire. While designing their own questionnaire, researchers may use open- or close-ended questions. It is important to design the responses appropriately as the format of responses will influence the analysis. Sometimes, one can collect the same information in multiple ways - continuous or categorical response. Besides these, the researcher can also use visual analog scales or Likert's scale in the questionnaire. Some practical take-home points are: (1 Use specific language while framing the questions; (2 write detailed instructions in the questionnaire; (3 use mutually exclusive response categories; (4 use skip patterns; (5 avoid double-barreled questions; and (6 anchor the time period if required.

  1. Hyperfine phononic frequency comb

    CERN Document Server

    Ganesan, Adarsh; Seshia, Ashwin A

    2016-01-01

    Optical frequency combs [1-8] have resulted in significant advances in optical frequency metrology and found wide application to precise physical measurements [1-4, 9] and molecular fingerprinting [8]. A direct analogue of frequency combs in the phononic or acoustic domain has not been reported to date. In this letter, we report the first clear experimental evidence for a phononic frequency comb. In contrast to the Kerr nonlinearity [10] in optical frequency comb formation, the phononic frequency comb is generated through the intrinsic coupling of a driven phonon mode with an auto-parametrically excited sub-harmonic mode [16]. Through systematic experiments at different drive frequencies and amplitudes, we portray the well-connected process of phononic frequency comb formation and define attributes to control the features [17-18] associated with comb formation in such a system. Further, the interplay between these nonlinear resonances and the well-known Duffing phenomenon [12-14] is also observed. The present...

  2. STOP-Bang questionnaire is superior to Epworth sleepiness scales,Berlin questionnaire, and STOP questionnaire in screening obstructive sleep apnea hypopnea syndrome patients

    Institute of Scientific and Technical Information of China (English)

    Luo Jinmei; Huang Rong; Zhong Xu; Xiao Yi; Zhou Jiong

    2014-01-01

    Background Obstructive sleep apnea hypopnea syndrome (OSAHS) is underdiagnosed.Screening patients at high risk of OSAHS is extremely important.Using the standard questionnaire to screen OSAHS is a practical method.This study aimed to evaluate the value of the STOP-Bang questionnaire (SBQ) in screening OSAHS in sleep-disordered breathing clinic by comparing it with the Epworth sleepiness scales (ESS),Berlin questionnaire,and STOP questionnaire.Methods In this study,212 patients at the sleep-disordered breathing clinic of the Peking Union Medical College Hospital between May 2011 and January 2012 were prospectively included.They were asked to fill in the SBQ,ESS,Berlin questionnaire,and STOP questionnaire before overnight polysomnography (PSG).Using PSG as gold standard,the sensitivities and specificities of SBQ were compared with those of ESS,Berlin questionnaire,and STOP questionnaire.Results There was no significance in applying ESS score ≥11 to screen OSAHS and detect moderate and severe OSAHS (P >0.05).SBQ was superior to Berlin questionnaire and STOP questionnaire in screening OSAHS and detecting the severity of OSAHS patients.The sensitivities of SBQ score ≥3 with apnea hypopnea index (AHI) ≥5/h,AHI ≥15/h,and AHI ≥30/h as gold standards were 94.9%,96.5%,and 97.7%,respectively.The specificities were 50.0%,28.6%,and 17.9%,respectively.The area upper curves were 0.815 (0.706-0.925,P <0.01),0.746 (0.665-0.828,P <0.01),and 0.751 (0.686-0.817,P <0.01),respectively.According to SBQ,the population was classified into high-risk group and low-risk group.The gender,BMI,neck circumference,AHI,LSpO2,and number of subjects ofAHI ≥5/h,AHI ≥15/h,and AHI ≥30/h of these two groups were significantly different.Conclusions The SBQ has superior predictive value compared with ESS,Berlin questionnaire,and STOP questionnaire.It should be used further in screening for OSAHS in the general population.

  3. Assessment of lower urinary tract symptoms in women by a self-administered questionnaire: test-retest reliability

    DEFF Research Database (Denmark)

    Bernstein, Inge Thomsen; Sejr, T; Able, I

    1996-01-01

    A self-administered questionnaire assessing female lower urinary tract symptoms and their impact on quality of life is described and validated, on 56 females in six participating departments. The patients answered two identical questionnaires on separate occasions before treatment. Test-retest re......A self-administered questionnaire assessing female lower urinary tract symptoms and their impact on quality of life is described and validated, on 56 females in six participating departments. The patients answered two identical questionnaires on separate occasions before treatment. Test......, sexual function and social activities. Test-retest showed a repeat frequency of 50.0%-91.0% for symptoms and 44.6%-82.1% for trouble. A highly significant positive correlation was found between symptoms and trouble, which was most pronounced for questions concerning pain and incontinence...

  4. [Design of dietary questionnaires to study the relationships between diet and cancer prevalence in Colombia].

    Science.gov (United States)

    Herrán, Oscar F; Ardila, María F; Rojas, Martha P; Hernández, Gustavo A

    2010-01-01

    In Colombia, cancer ranks third as a cause of death in the adult population. Thirty-five percent of cancer deaths are attributable to dietary factors and that 90% of colorectal cancers can be prevented by appropriate diets. A dietary questionnaire was developed to study the relationship between diet and cancer for five cities in Colombia (Barranquilla, Cartagena, Santa Marta, Bogotá and Bucaramanga and its metropolitan area), based on 24-hour dietary survey data accumulated by the National Survey of Nutritional Status-2005. Each questionnaire had 3 sections and involved six stages in its development. A checklist representing thirteen nutrients was formulated by means of the method of the variance maximization (Max_r); it was supplemented with nine categories of consumption frequency. The two complementary sections inquired about the consumption of food, number of meals per day, and methods of preparation, related with cancer development. Between 22 and 32 foods were discriminated for each questionnaire. Only nine foods were common in the checklists of each of the five cities. Nine of the thirteen nutrients are represented with correlations higher than 0.80, with a minimum 0.47 and a maximum of 1.0. For the first time in Colombia specific questionnaires were developed to study the diet-cancer relationship. The checklist was comprehensive and it incorporated between-person variability, as well as the habits and food culture of each city. We propose nine analysis alternatives for the questionnaire. The questionnaires will prove useful in epidemiological research, although they require calibration with studies of reproducibility and validity.

  5. Development of a questionnaire to assess maternal attitudes towards infant growth and milk feeding practices

    Directory of Open Access Journals (Sweden)

    Schiff Annie

    2011-04-01

    Full Text Available Abstract Background There is increasing recognition that public health strategies to prevent childhood obesity need to start early in life. Any behavioural interventions need to target maternal attitudes and infant feeding practices, This paper describes the development and preliminary validation of a questionnaire to assess maternal attitudes towards infant growth and milk feeding practices. Methods We designed a 57-item (19 questions, self-administered questionnaire to measure the following four domains- 1 type of milk feeding, decision making and sources of advice; 2 frequency and quantity of milk feeds; 3 attitudes to infant feeding and growth; and 4 theory-based beliefs about following infant feeding recommendations. Forty mothers completed the questionnaire on two occasions six days apart (to assess test-retest reliability and then participated in a semi-structured, open-ended telephone interview covering the same domains (to assess criterion validity. Percentage agreement, Cohen's Kappas (for categorical variables and Spearman's correlation coefficients (for continuous variables were used to quantify reliability and validity. Internal consistency between theory-based constructs (self-efficacy, outcome expectancy and intention was quantified by Chronbach's alpha. Results Of the 57 questionnaire items 51 (89% had percentage agreement above 70% indicating good test-retest reliability, and the remaining 6 items had moderate or substantial levels of agreement (kappa 0.41-0.68. Comparing questionnaire with interview coding (validity, percentage agreement was above 66% for 39/57 items (68%. Of the 16 items with percentage agreement below 66%, only five had kappa values below 0.20 (two items had insufficient interview responses. Internal consistency was 0.51, 0.79 and 0.90 for self-efficacy, outcome expectancy and intention respectively. Conclusions This questionnaire could be a useful tool in understanding the determinants of infant feeding and

  6. The assessment of protective behavioral strategies: comparing the absolute frequency and contingent frequency response scales.

    Science.gov (United States)

    Kite, Benjamin A; Pearson, Matthew R; Henson, James M

    2013-12-01

    The purpose of the present studies was to examine the effects of response scale on the observed relationships between protective behavioral strategies (PBS) measures and alcohol-related outcomes. We reasoned that an "absolute frequency" scale (stem: "how many times …"; response scale: 0 times to 11+ times) conflates the frequency of using PBS with the frequency of consuming alcohol; thus, we hypothesized that the use of an absolute frequency response scale would result in positive relationships between types of PBS and alcohol-related outcomes. Alternatively, a "contingent frequency" scale (stem: "When drinking … how often …"; response scale: never to always) does not conflate frequency of alcohol use with use of PBS; therefore, we hypothesized that use of a contingent frequency scale would result in negative relationships between use of PBS and alcohol-related outcomes. Two published measures of PBS were used across studies: the Protective Behavioral Strategies Survey (PBSS) and the Strategy Questionnaire (SQ). Across three studies, we demonstrate that when measured using a contingent frequency response scale, PBS measures relate negatively to alcohol-related outcomes in a theoretically consistent manner; however, when PBS measures were measured on an absolute frequency response scale, they were nonsignificantly or positively related to alcohol-related outcomes. We discuss the implications of these findings for the assessment of PBS.

  7. Static electromagnetic frequency changers

    CERN Document Server

    Rozhanskii, L L

    1963-01-01

    Static Electromagnetic Frequency Changers is about the theory, design, construction, and applications of static electromagnetic frequency changers, devices that used for multiplication or division of alternating current frequency. It is originally published in the Russian language. This book is organized into five chapters. The first three chapters introduce the readers to the principles of operation, the construction, and the potential applications of static electromagnetic frequency changers and to the principles of their design. The two concluding chapters use some hitherto unpublished work

  8. Modeling Frequency Comb Sources

    Directory of Open Access Journals (Sweden)

    Li Feng

    2016-06-01

    Full Text Available Frequency comb sources have revolutionized metrology and spectroscopy and found applications in many fields. Stable, low-cost, high-quality frequency comb sources are important to these applications. Modeling of the frequency comb sources will help the understanding of the operation mechanism and optimization of the design of such sources. In this paper,we review the theoretical models used and recent progress of the modeling of frequency comb sources.

  9. An evaluation of chronic pain questionnaires in the adult population.

    Science.gov (United States)

    Deshaies, Kathryn; Akhtar-Danesh, Noori; Kaasalainen, Sharon

    2015-01-01

    Considering pain's subjectivity, measurement and its processes are indispensable to clinicians and researchers. Development and testing methods of recently published chronic pain questionnaires were analyzed to determine the state of measurement in chronic pain. There were 8 questionnaires analyzed against 28 criteria, which combined specific testing standards and commonly accepted reliability statistics. Only 1 questionnaire received a rating of good method quality. The 7 remaining questionnaires received a rating of poor method quality. Newly developed chronic pain self-report questionnaires revealed deficiencies in construction and testing methods. It is proposed that an adapted version of the Standards of Educational and Psychological Testing serves as a useful guide for developing and testing new health questionnaires.

  10. The Mexican version of the Childhood Health Assessment Questionnaire (CHAQ) and the Child Health Questionnaire (CHQ).

    Science.gov (United States)

    Duarte, C; Ruperto, N; Goycochea, M V; Maldonado, R; Beristain, R; De Inocencio, J; Burgos-Vargas, R

    2001-01-01

    We report herein the results of the cross-cultural adaptation and validation into the Mexican language of the parent's version of two health related quality of life instruments. The Childhood Health Assessment Questionnaire (CHAQ) is a disease specific health instrument that measures functional ability in daily living activities in children with juvenile idiopathic arthritis (JIA). The Child Health Questionnaire (CHQ) is a generic health instrument designed to capture the physical and psychosocial well-being of children independently from the underlying disease. The Mexican CHAQ was already published and therefore it was revalidated while the Mexican CHQ was derived from the European Spanish version with changing of the few words whose use is different in the 2 countries. A total of 182 subjects were enrolled: 89 patients with JIA (26% systemic onset, 47% polyarticular onset, 13.5% extended oligoarticular subtype, and 13.5% persistent oligoarticular subtype) and 93 healthy children. The CHAQ clinically discriminated between healthy subjects and JIA patients, with the systemic onset, and polyarticular onset subtypes having a higher degree of disability, pain, and a lower overall well-being when compared to their healthy peers. Also the CHQ clinically discriminated between healthy subjects and JIA patients, with the systemic onset, and polyarticular onset having a lower physical and psychosocial well-being when compared to their healthy peers. In conclusion the Mexican version of the CHAQ-CHQ is a reliable, and valid tool for the functional, physical and psychosocial assessment of children with JIA.

  11. Polish adaptation and validation of the Agoraphobic Cognitions Questionnaire and the Body Sensations Questionnaire

    Directory of Open Access Journals (Sweden)

    Michałowski, Jarosław M.

    2013-07-01

    Full Text Available Aim. The present study aimed at the adaptation and validation of two questionnaires assessing fear of bodily sensations (BSQ; suggested Polish name: Kwestionariusz Doznań Cielesnych [KDC] and concerns specific to agoraphobics (ACQ; suggested Polish name: Kwestionariusz Myśli Towarzyszących Agorafobii [KMTA].Method. The study included a total of 82 patients diagnosed with agoraphobia or panic disorder with agoraphobia according to the diagnostic criteria of the DSM-IV as well as 100 control subjects who did not show the presence of mental disorders.Results. The results showed that both adapted questionnaires meet basic psychometric criteria. The Polish-language versions of the ACQ and BSQ are characterized by a high content validity, internal consistency and showed to be stable over a period of 28 days. Moreover, the factor structure of the Polish version of the ACQ showed to be highly similar to the original version.Conclusions Polish-language versions of the ACQ and BSQ have been found to be reliable and valid research and diagnostic instruments for the assessment of fear for bodily sensations and agoraphobic cognitions. Due to their high efficiency and adequate psychometric characteristics these measures might be very useful in research as well as in the diagnosis and evaluation of therapeutic effects.

  12. The Latvian version of the Childhood Health Assessment Questionnaire (CHAQ) and the Child Health Questionnaire (CHQ).

    Science.gov (United States)

    Rumba, I; Ruperto, N; Bikis, E; Remberga, S; Saulite, I; Plotkina, N; Viksna, A; Krauca, M; Breca, I; Vikmanis, U

    2001-01-01

    We report herein the results of the cross-cultural adaptation and validation into the Latvian language of the parent's version of two health related quality of life instruments. The Childhood Health Assessment Questionnaire (CHAQ) is a disease specific health instrument that measures functional ability in daily living activities in children with juvenile idiopathic arthritis (JIA). The Child Health Questionnaire (CHQ) is a generic health instrument designed to capture the physical and psychosocial well-being of children independently from the underlying disease. The Latvian CHAQ CHQ were fully validated with 1 forward and 1 backward translations. A total of 141 subjects were enrolled: 80 patients with JIA (16% systemic onset, 32.5% polyarticular onset, 19% extended oligoarticular subtype, and 32.5% persistent oligoarticular subtype) and 61 healthy children. The CHAQ clinically discriminated between healthy subjects and JIA patients, with the systemic, polyarticular and extended oligoarticular subtypes having a higher degree of disability, pain, and a lower overall well-being when compared to their healthy peers. Also the CHQ clinically discriminated between healthy subjects and JIA patients, with the systemic onset, polyarticular onset and extended oligoarticular subtypes having a lower physical and psychosocial well-being when compared to their healthy peers. In conclusion the Latvian version of the CHAQ-CHQ is a reliable, and valid tool for the functional, physical and psychosocial assessment of children with JIA.

  13. Syntax for calculation of discounting indices from the monetary choice questionnaire and probability discounting questionnaire.

    Science.gov (United States)

    Gray, Joshua C; Amlung, Michael T; Palmer, Abraham A; MacKillop, James

    2016-09-01

    The 27-item Monetary Choice Questionnaire (MCQ; Kirby, Petry, & Bickel, 1999) and 30-item Probability Discounting Questionnaire (PDQ; Madden, Petry, & Johnson, 2009) are widely used, validated measures of preferences for immediate versus delayed rewards and guaranteed versus risky rewards, respectively. The MCQ measures delayed discounting by asking individuals to choose between rewards available immediately and larger rewards available after a delay. The PDQ measures probability discounting by asking individuals to choose between guaranteed rewards and a chance at winning larger rewards. Numerous studies have implicated these measures in addiction and other health behaviors. Unlike typical self-report measures, the MCQ and PDQ generate inferred hyperbolic temporal and probability discounting functions by comparing choice preferences to arrays of functions to which the individual items are preconfigured. This article provides R and SPSS syntax for processing the MCQ and PDQ. Specifically, for the MCQ, the syntax generates k values, consistency of the inferred k, and immediate choice ratios; for the PDQ, the syntax generates h indices, consistency of the inferred h, and risky choice ratios. The syntax is intended to increase the accessibility of these measures, expedite the data processing, and reduce risk for error.

  14. Eastern Frequency Response Study

    Energy Technology Data Exchange (ETDEWEB)

    Miller, N.W.; Shao, M.; Pajic, S.; D' Aquila, R.

    2013-05-01

    This study was specifically designed to investigate the frequency response of the Eastern Interconnection that results from large loss-of-generation events of the type targeted by the North American Electric Reliability Corp. Standard BAL-003 Frequency Response and Frequency Bias Setting (NERC 2012a), under possible future system conditions with high levels of wind generation.

  15. Questionnaires, in-depth interviews and focus groups

    OpenAIRE

    Adams, Anne; Cox, Anna L.

    2008-01-01

    With fast changing technologies and related human interaction issues, there is an increased need for timely evaluation of systems with distributed users in varying contexts (Pace, 2004). This has led to the increased use of questionnaires, in-depth interviews and focus groups in commercial usability and academic research contexts. Questionnaires are usually paper based or delivered online and consist of a set of questions which all participants are asked to complete. Once the questionnaire ha...

  16. Development and Psychometric Evaluation of the Child Neglect Questionnaire.

    Science.gov (United States)

    Stewart, Chris; Kirisci, Levent; Long, Abigail L; Giancola, Peter R

    2015-11-01

    Neglect poses a significant risk for children throughout their development and is often linked with serious consequences that reach into adulthood. The Child Neglect Questionnaire (CNQ) fills existing gaps by incorporating multiple perspectives from both parents and the child, as well as measuring the complex phenomenon of neglect multidimensionally. Furthermore, this measure addresses the need for an instrument specifically developed for late childhood (ages 10-12), as much of the extant evidence and corresponding measures focus on young children and their mothers. A panel of three psychologists, using Cicchetti's model of child neglect as a theoretical guide, began by selecting items from an existing database. Results of exploratory and confirmatory factor analyses and item response theory demonstrated the unidimensionality of physical, emotional, educational, and supervision neglect as well as a second-order construct of child neglect. Analyses controlling for risk status due to father's substance use disorder, socioeconomic status, and child's ethnicity demonstrated that father's and mother's (parental) neglect, particularly in the child's versions, had sound concurrent and predictive validity. Concurrently, at age 10-12, the child's version of both parents' neglect correlated with their parenting behaviors evaluated by other available measures. Prospectively, from 10-12 years of age to 11-13 years of age, parental neglect predicted child's drug use frequency with coexisting psychological dysregulation, psychiatric symptoms, antisocial behavior, non-normative sexual behavior, involvement with deviant peers and leisure activities thus demonstrating sound predictive validity. Also, internal consistency and inter-rater reliability were excellent. The CNQ, particularly the child's version, may thus be useful for detecting children at high risk for parental neglect.

  17. Measuring the coolness of interactive products: the COOL questionnaire

    DEFF Research Database (Denmark)

    Bruun, Anders; Raptis, Dimitrios; Kjeldskov, Jesper;

    2016-01-01

    is the COOL questionnaire. We based the creation of the questionnaire on literature suggesting that perceived coolness is decomposed to outer cool (the style of a product) and inner cool (the personality characteristics assigned to it). In this paper, we focused on inner cool, and we identified 11 inner cool......, rebelliousness and usability. These factors and their underlying 16 question items comprise the COOL questionnaire. The whole process of creating the questionnaire is presented in detail in this paper and we conclude by discussing our work against related work on coolness and HCI....

  18. Digital questionnaire platform in the Danish Blood Donor Study

    DEFF Research Database (Denmark)

    Burgdorf, K S; Felsted, N; Mikkelsen, S

    2016-01-01

    OBJECTIVES: The Danish Blood Donor Study (DBDS) is a prospective, population-based study and biobank. Since 2010, 100,000 Danish blood donors have been included in the study. Prior to July 2015 all participating donors had to complete a paper-based questionnaire. Here we describe the establishment...... with the questionnaire data in the DBDS database. RESULTS: The digital platform enables personalized questionnaires, presenting only questions relevant to the specific donor by hiding unneeded follow-up questions on screening question results. New versions of questionnaires are immediately available at all blood...

  19. The role of questionnaires in the assessment of asthma control.

    Science.gov (United States)

    Przybyszowski, Marek; Bochenek, Grażyna

    2015-01-01

    The achievement and the maintenance of asthma control is currently considered the main goal of asthma treatment. Recent guidelines recommend regular assessment of asthma control and indicate questionnaires as important tools that can facilitate its evaluation. Questionnaires relate to GINA or NAEPP guidelines. Questionnaires constitute complex numerical or categorical scales and consist of several to over a dozen questions relating to the patient's symptoms of asthma, limitations in daily activities and usage of rescue medications within a period of time. Each questionnaire is characterized by the features that affect its reliability and usefulness. In the following paper we discuss most of the questionnaires which assess asthma control. We focus on the items they include and present the results of studies that prove the effectiveness of individual questionnaires in assessment of asthma control. Attention was drawn to the patient groups to which the questionnaires are addressed. We list the features of the questionnaire which should be considered before choosing a test, so that it satisfies both the doctor's and the patient's needs. The role of questionnaires as the easy-to-use tools is growing steadily. Unfortunately, not all are available in Polish language. Conducting appropriate validation studies may allow to use many of them in Polish conditions.

  20. Development and validation of the Eating Maturity Questionnaire: Preliminary findings.

    Science.gov (United States)

    Potocka, Adrianna; Najder, Anna

    2016-10-01

    This article describes the development of the Eating Maturity Questionnaire, a self-reported measurement of eating maturity that initiates and gives direction to human eating behaviors. The Eating Maturity Questionnaire was designed to study individuals' biological and psychosocial motives for eating. The Eating Maturity Questionnaire is a 21-item tool with satisfactory psychometric values (Cronbach's α coefficients between 0.83 and 0.88) consisting of two subscales: Rational Eating and Psychosocial Maturity Eating Maturity Questionnaire results may be used to design programs that target eating behaviors and body mass modification.

  1. Development of the HELIUS food frequency questionnaires ethnic-specific questionnaires to assess the diet of a multiethnic population in The Netherlands

    NARCIS (Netherlands)

    Beukers, M.H.; Dekker, L.H.; Boer, de E.J.; Perenboom, C.W.M.; Meijboom, S.; Nicolaou, M.; Vries, de J.H.M.; Brants, H.A.M.

    2015-01-01

    Objectives: Ethnic minorities are often not included in studies of diet and health because of a lack of validated instruments to assess their habitual diets. Given the increased ethnic diversity in many high-income countries, insight into the diets of ethnic minorities is needed for the development

  2. Frequency selective infrared sensors

    Science.gov (United States)

    Davids, Paul; Peters, David W

    2013-05-28

    A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

  3. Food consumption of adolescents. A simplified questionnaire for evaluating cardiovascular risk

    Directory of Open Access Journals (Sweden)

    Chiara Vera Lucia

    2001-01-01

    Full Text Available OBJECTIVE: To develop a simplified questionnaire for self-evaluation by adolescents of foods associated with the risk of coronary diseases. METHODS: Frequency questionnaires about 80 foods were answered by representative samples of 256 adolescents aged 12 to 19 from Rio de Janeiro as part of the Nutrition and Health Research project. The dependent variable was the serum cholesterol predicting equation as influenced by diet, and the independent variables were the foods. The variables were normalized and, using Pearson's correlation coefficient, those with r>0.10 were selected for the regression model. The model was analyzed for sex, age, random sample, and total calories. Those food products that explained 85% of the cholesterol variation equation were present in the caloric model, and contained trans fatty acids were selected for the questionnaire. RESULTS: Sixty-five food products had a statistically significant correlation (P<0.001 with the dependent variable. The simplified questionnaire included 9 food products present in all tested models: steak or broiled meat, hamburger, full-fat cheese, French fries or potato chips, whole milk, pies or cakes, cookies, sausages, butter or margarine. The limit of the added food points for self-evaluation was 100, and over 120 points was considered excessive. CONCLUSION: The scores given to the food products and the criteria for the evaluation of the consumption limits enabled the adolescents to get to know and to balance their intake.

  4. Analysis of consumers' preferences and behavior with regard to horse meat using a structured survey questionnaire.

    Science.gov (United States)

    Oh, Woon Yong; Lee, Ji Woong; Lee, Chong Eon; Ko, Moon Seok; Jeong, Jae Hong

    2009-12-01

    In this study, a structured survey questionnaire was used to determine consumers' preferences and behavior with regard to horse meat at a horse meat restaurant located in Jeju, Korea, from October 1 to December 24, 2005. The questionnaire employed in this study consisted of 20 questions designed to characterize six general attributes: horse meat sensory property, physical appearance, health condition, origin, price, and other attributes. Of the 1370 questionnaires distributed, 1126 completed questionnaires were retained based on the completeness of the answers, representing an 82.2% response rate. Two issues were investigated that might facilitate the search for ways to improve horse meat production and marketing programs in Korea. The first step was to determine certain important factors, called principal components, which enabled the researchers to understand the needs of horse meat consumers via principal component analysis. The second step was to define consumer segments with regard to their preferences for horse meat, which was accomplished via cluster analysis. The results of the current study showed that health condition, price, origin, and leanness were the most critical physical attributes affecting the preferences of horse meat consumers. Four segments of consumers, with different demands for horse meat attributes, were identified: origin-sensitive consumers, price-sensitive consumers, quality and safety-sensitive consumers, and non-specific consumers. Significant differences existed among segments of consumers in terms of age, nature of work, frequency of consumption, and general level of acceptability of horse meat.

  5. A reliable and valid questionnaire was developed to measure computer vision syndrome at the workplace.

    Science.gov (United States)

    Seguí, María del Mar; Cabrero-García, Julio; Crespo, Ana; Verdú, José; Ronda, Elena

    2015-06-01

    To design and validate a questionnaire to measure visual symptoms related to exposure to computers in the workplace. Our computer vision syndrome questionnaire (CVS-Q) was based on a literature review and validated through discussion with experts and performance of a pretest, pilot test, and retest. Content validity was evaluated by occupational health, optometry, and ophthalmology experts. Rasch analysis was used in the psychometric evaluation of the questionnaire. Criterion validity was determined by calculating the sensitivity and specificity, receiver operator characteristic curve, and cutoff point. Test-retest repeatability was tested using the intraclass correlation coefficient (ICC) and concordance by Cohen's kappa (κ). The CVS-Q was developed with wide consensus among experts and was well accepted by the target group. It assesses the frequency and intensity of 16 symptoms using a single rating scale (symptom severity) that fits the Rasch rating scale model well. The questionnaire has sensitivity and specificity over 70% and achieved good test-retest repeatability both for the scores obtained [ICC = 0.802; 95% confidence interval (CI): 0.673, 0.884] and CVS classification (κ = 0.612; 95% CI: 0.384, 0.839). The CVS-Q has acceptable psychometric properties, making it a valid and reliable tool to control the visual health of computer workers, and can potentially be used in clinical trials and outcome research. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Development of a nutrition knowledge questionnaire for obese adults

    Directory of Open Access Journals (Sweden)

    Anne Feren

    2011-10-01

    Full Text Available The aim of this study was to develop a questionnaire for assessing nutritional knowledge among overweight adults. The questionnaire should reveal knowledge about current dietary recommendations, sources of nutrients, everyday food choices, and conditions related to overweight.The first draft of the nutrition knowledge questionnaire (113 items was based on literature review. To ensure content validity and expert-assessed face validity, an expert panel examined the questionnaire. Thereafter, the questionnaire was tested for user friendliness and ambiguity by five students. The questionnaire was pilot tested in a group of obese adults, similar to the target group. The results were analyzed for item difficulty and internal consistency and comments made by respondents were taken into account. Two student groups, differing in nutritional expertise, answered the questionnaire on two occasions to test construct validity and test–retest reliability. After the retest, a total overview of the questionnaire was made by the expert panel. The final questionnaire consisted of 91 items.The pilot study was conducted in obese adults waiting for a gastric bypass operation (n=33. Construct validity (n=34 and test–retest reliability (n=27 was tested in two student groups: public health nutrition students and construction students.Results from the pilot study showed that internal consistency of the three first sections together was 0.84, measured by Cronbach's α. Test of construct validity showed that public health nutrition students scored significantly better than construction students (p<0.001 for all sections, and test–retest reliability for all sections together was 0.82 (Pearson's r.The knowledge questionnaire had reasonable content-, face-, and construct validities and overall good reliability. The questionnaire can be a useful tool for measuring nutrition knowledge among obese adults.

  7. Pain detection by clinical questionnaire in patients referred for temporomandibular disorders in a Chilean hospital.

    Directory of Open Access Journals (Sweden)

    Tomás Maturana

    2015-10-01

    Full Text Available Aim: To determine pain frequency by means of a clinical screening questionnaire in patients with temporomandibular disorders (TMD referred to the general Hospital of Valdivia (HBV between September and December 2014. Material and method: A descriptive study, which included patients referred to the TMD Unit of the dental service at HBV between September and December 2014, was carried out. A clinical screening questionnaire was applied by an examiner in order to detect painful Temporomandibular Joint Disorders. The variables age, sex, wait time, and presence of related TMD pain were measured. Results: 101 patients were surveyed; 88.17% (84 patients were women. Average age was 33.5 (11-70 years; 66% of patients had mandibular pain or stiffness upon awakening; 80% informed pain related to painful TMD. Conclusion: Most surveyed patients were women. Pain was highly frequent in the surveyed population; its main location was in temporal areas.

  8. Etiological factors in nasopharyngeal carcinoma: a hospital-based, retrospective, case-control, questionnaire study.

    Science.gov (United States)

    Shanmugaratnam, K; Tye, C Y; Goh, E H; Chia, K B

    1978-01-01

    A total of 379 Singapore Chinese patients with NPC were interviewed by use of a questionnaire covering the following items: occupation, level of education, language medium of education, personal and family history of nasal illnesses, types of medicines used, use of Chinese medicines for the nose and throat, use of soya sauce, Chinese tea, cooling drinks and alcohol, cigarette smoking (number and duration), cooking fuels and use of incense (frequency and duration) and of anti-mosquito coils. The same questionnaire was given to two groups of controls: 595 patients with diseases of the ear, nose and throat other than NPC and 1 044 patients with diseases other than cancer or otorhinolaryngeal disease. NPC patients differed significantly from both groups of controls in that they showed stronger associations with personal history of nasal illnesses, family history of nasal illnesses, use of Chinese medicines for the nose and throat and exposure to smoke from anti-mosquito coils.

  9. LLL2: an international global level questionnaire on toothbrushing and use of fluoride toothpaste.

    Science.gov (United States)

    Llodra, Juan Carlos; Phantumvanit, Prathip; Bourgeois, Denis M; Horn, Virginie

    2014-10-01

    To determine the evolution of toothbrushing frequency and use of fluoridetoothpaste in the FDI-Unilever partnership Live.Learn.Laugh. phase 2 programme using a self-reported questionnaire. The study was conducted in 23 countries. The key focus of this partnership was to educate people about the benefits of twice-daily brushing with fluoride toothpaste and to support people in adopting this important oral health behaviour. The partnership offers a choice of four project options to the local partnership team of the National Dental Association and local Unilever-operating companies. A self-report questionnaire was used in all participating subjects in local projects to evaluate the brushing frequency, the brushing timing and the use of fluoride toothpaste. After implementation of the project interventions, a clear improvement in the reported frequency of brushing twice a day, regardless of the type of project, was observed. Subjects also increased day and night brushing and the use of fluoride toothpaste. The strategy of using mothers to increase healthy behaviours in oral health achieved the greatest increase in twice-daily toothbrushing, followed by the intervention in schools. © 2014 FDI World Dental Federation.

  10. RELIABILITY AND VALIDITY OF THE CHRONIC RESPIRATORY QUESTIONNAIRE (CRQ)

    NARCIS (Netherlands)

    WIJKSTRA, PJ; TENVERGERT, EM; VANALTENA, R; OTTEN, [No Value; POSTMA, DS; KRAAN, J; KOETER, GH

    1994-01-01

    Background - The Chronic Respiratory Questionnaire (CRQ) is frequently applied to assess quality of life in patients with chronic obstructive pulmonary disease (COPD). However, the reliability and validity of this questionnaire have not yet been determined. This study investigates the reliability an

  11. The Reliability and Validity of the Career Decision Difficulties Questionnaire.

    Science.gov (United States)

    Lancaster, Brian P.; Rudolph, Charles E.; Perkins, T. Scott; Patten, Thomas G.

    1999-01-01

    Scores on the Career Decision Difficulties Questionnaire for 268 college students (86 classified as undecided) showed convergence with the Career Decision Scale. The questionnaire's discriminant validity was confirmed in the areas of social desirability and anxiety. There were statistically significant differences between decided and undecided…

  12. Self-Rated Competences Questionnaires from a Design Perspective

    Science.gov (United States)

    Braun, Edith; Woodley, Alan; Richardson, John T. E.; Leidner, Bernhard

    2012-01-01

    This paper provides a theoretical review of self-rated competences questionnaires. This topic is influenced by the ongoing world-wide reform of higher education, which has led to a focus on the learner outcomes of higher education. Consequently, questionnaires on self-rated competences have increasingly been employed. However, self-ratings are…

  13. Validated Questionnaires heighten detection of Difficult Asthma Comorbidities.

    Science.gov (United States)

    Radhakrishna, Naghmeh; Tay, Tunn Ren; Hore-Lacy, Fiona; Stirling, Robert; Hoy, R; Dabscheck, Eli; Hew, Mark

    2016-10-07

    Objective Multiple extra-pulmonary comorbidities contribute to difficult asthma, but their diagnosis can be challenging and time consuming. Previous data on comorbidity detection have focused on clinical assessment, which may miss certain conditions. We aimed to locate relevant validated screening questionnaires to identify extra-pulmonary comorbidities that contribute to difficult asthma, and evaluate their performance during a difficult asthma evaluation. Methods MEDLINE was searched to identify key extra-pulmonary comorbidities that contribute to difficult asthma. Screening questionnaires were chosen based on ease of use, presence of a cut off score, and adequate validation to help systematically identify comorbidities. In a consecutive series of 86 patients referred for systematic evaluation of difficult asthma, questionnaires were administered prior to clinical consultation. Results Six difficult asthma comorbidities and corresponding screening questionnaires were found: sinonasal disease (allergic rhinitis and chronic rhinosinusitis), vocal cord dysfunction, dysfunctional breathing, obstructive sleep apnea, anxiety and depression, and gastro-oesophageal reflux disease. When the questionnaires were added to the referring clinician's impression, the detection of all six comorbidities was significantly enhanced. The average time for questionnaire administration was approximately 40 minutes. Conclusions The use of validated screening questionnaires heightens detection of comorbidities in difficult asthma. The availability of data from a battery of questionnaires prior to consultation can save time and allow clinicians to systematically assess difficult asthma patients and to focus on areas of particular concern. Such an approach would ensure that all contributing comorbidities have been addressed before significant treatment escalation is considered.

  14. Assessing the Efficacy of a Student Expectations Questionnaire

    Science.gov (United States)

    Warwick, Jon

    2012-01-01

    This article uses Rasch analysis to explore the efficacy of a questionnaire designed to assist university teaching staff in identifying those Level 4 students most in need of mathematics support. The students were all taking a mathematics module as part of their first year Computing curriculum, and the questionnaire explores the students' previous…

  15. Construct Validity of the Children's Music-Related Behavior Questionnaire

    Science.gov (United States)

    Valerio, Wendy H.; Reynolds, Alison M.; Morgan, Grant B.; McNair, Anne A.

    2012-01-01

    The purpose of this research was to investigate the construct validity of the Children's Music-Related Behavior Questionnaire (CMRBQ), an instrument designed for parents to document music-related behaviors about their children and themselves. The research problem was to examine the hypothesized factorial structure of the questionnaire. From a…

  16. The Danish anal sphincter rupture questionnaire: Validity and reliability

    DEFF Research Database (Denmark)

    Due, Ulla; Ottesen, Marianne

    2008-01-01

    offered pelvic floor muscle examination and instruction by a specialist physiotherapist. In relation to that, a non-validated questionnaire about anal and urinary incontinence was to be answered six months after childbirth. Method. The original questionnaire was revised and a pilot test was performed...

  17. The St George's Respiratory Questionnaire revisited : a psychometric evaluation

    NARCIS (Netherlands)

    Paap, Muirne C S; Brouwer, Danny; Glas, Cees A W; Monninkhof, Evelyn M.; Forstreuter, Benjamin; Pieterse, Marcel E.; van der Palen, Job

    2015-01-01

    PURPOSE: The St George's Respiratory Questionnaire (SGRQ) has clearly acquired the status of legacy questionnaire for measuring health-related quality of life in patients with chronic obstructive pulmonary disease (COPD). The main aim of this study was to assess the underlying dimensionality of the

  18. Detecting Careless Responses to Self-Reported Questionnaires

    Science.gov (United States)

    Kountur, Ronny

    2016-01-01

    Problem Statement: The use of self-report questionnaires may lead to biases such as careless responses that distort the research outcomes. Early detection of careless responses in self-report questionnaires may reduce error, but little guidance exists in the literature regarding techniques for detecting such careless or random responses in…

  19. 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

  20. A Mobile Platform for Administering Questionnaires and Synchronizing Their Answers

    Science.gov (United States)

    Ginardi, Maria Germana; Lanzola, Giordano

    2013-01-01

    This paper describes a platform for administering questionnaires on smart-phones and tablets. The project arises from the need of acquiring data for monitoring the outcomes of different homecare interventions. First a model has been defined for representing questionnaires, able to support adaptivity in the dialog with the user and enforce some…

  1. Self-Rated Competences Questionnaires from a Design Perspective

    Science.gov (United States)

    Braun, Edith; Woodley, Alan; Richardson, John T. E.; Leidner, Bernhard

    2012-01-01

    This paper provides a theoretical review of self-rated competences questionnaires. This topic is influenced by the ongoing world-wide reform of higher education, which has led to a focus on the learner outcomes of higher education. Consequently, questionnaires on self-rated competences have increasingly been employed. However, self-ratings are…

  2. Managing missing scores on the Roland Morris Disability Questionnaire

    DEFF Research Database (Denmark)

    Kent, Peter; Lauridsen, Henrik Hein

    2011-01-01

    Study Design: Analysis of Roland Morris Disability Questionnaire (RMDQ) and Oswestry Disability Index (Oswestry) responses.Objectives: To determine the prevalence of unanswered questions on the RMDQ23 (23-item RMDQ version) and Oswestry questionnaires. To determine if managing RMDQ23 missing data...

  3. Cognitive Laboratory Experiences : On Pre-testing Computerised Questionnaires

    NARCIS (Netherlands)

    Snijkers, G.J.M.E.

    2002-01-01

    In the literature on questionnaire design and survey methodology, pre-testing is mentioned as a way to evaluate questionnaires (i.e. investigate whether they work as intended) and control for measurement errors (i.e. assess data quality). As the American Statistical Association puts it (ASA, 1999, p

  4. Evaluating Instructional Effectiveness with the Instructional Improvement Questionnaire.

    Science.gov (United States)

    Pohlmann, John T.

    The Instructional Improvement Questionnaire (IIQ) is a four-part questionnaire designed to collect evaluative feedback from students on their instructors and courses. The class characteristics section collects data from the student on variables such as grade point average, sex, class level, grade expected, time spent studying for the course, etc.…

  5. Development and Validation of the Personality Assessment Questionnaire: Test Manual.

    Science.gov (United States)

    Rohner, Ronald P.; And Others

    Data are presented evaluating the validity and reliability of the Personality Assessment Questionnaire (PAQ), a self-report questionnaire designed to elicit respondents' perceptions of themselves with respect to seven personality and behavioral dispositions: hostility and aggression, dependence, self-esteem, self-adequacy, emotional…

  6. Development and psychometric evaluation of the Benzodiazepine Craving Questionnaire.

    NARCIS (Netherlands)

    Mol, A.J.J.; Oude Voshaar, R.C.; Gorgels, W.J.M.J.; Breteler, M.H.M.; Balkom, A.J.L.M. van; Lisdonk, E.H. van de; Ven, A.H. van der; Zitman, F.G.

    2003-01-01

    AIM: To assess the scalability, reliability and validity of a newly constructed self-report questionnaire on craving for benzodiazepines (BZs), the Benzodiazepine Craving Questionnaire (BCQ). SETTING AND PARTICIPANTS: The BCQ was administered once to a sample of 113 long-term and 80 former long-term

  7. Development of a smoking abstinence self-efficacy questionnaire

    DEFF Research Database (Denmark)

    Spek, Viola; Lemmens, Fieke; Chatrou, Marlène

    2013-01-01

    BACKGROUND: Self-efficacy beliefs are an important determinant of (changes in) health behaviors. In the area of smoking cessation, there is a need for a short, feasible, and validated questionnaire measuring self-efficacy beliefs regarding smoking cessation. PURPOSE: The purpose of this study...... is to investigate the psychometric properties of a six-item questionnaire to assess smoking cessation self-efficacy. METHODS: We used longitudinal data from a smoking cessation study. A total of 513 smokers completed the Smoking Abstinence Self-efficacy Questionnaire (SASEQ) and questionnaires assessing depressive...... that self-efficacy is measured independently of these concepts. Furthermore, high baseline SASEQ scores significantly predicted smoking abstinence at 52 weeks after the quit date (OR = 1.85; 95% CI = 1.20~2.84). CONCLUSIONS: The SASEQ appeared to be a short, reliable, and valid questionnaire to assess self-efficacy...

  8. [Questionnaire for the mobbing risk: CDL2.0].

    Science.gov (United States)

    Gilioli, R; Cassitto, M G; Campanini, P; Punzi, S; Consonni, D; Rengo, C; Fattorini, E; Foá, V

    2005-01-01

    The aim of the study is to develop and validate a questionnaire able to evaluate the risk of mobbing at the workplace. A multiple-choice questionnaire has been developed which contains, among the different items, only one revealing a mobbing situation. The questionnaire has been administered to two groups (group A--243 subjects in a mobbing situation and group B--63 subjects without exposure to mobbing) and the differences in the scores obtained have been analysed. The questionnaire has proved to be valid and reliable. The results show that the presence of five mobbing actions is sufficient to define the workplace situation as potentially at risk for mobbing. The study reveals some limits in the selection of the two samples thus needing some adjustment. However, the questionnaire, also in the present form, can be considered a tool able to detect the mobbing situations.

  9. Radio frequency detection assembly and method for detecting radio frequencies

    Science.gov (United States)

    Cown, Steven H.; Derr, Kurt Warren

    2010-03-16

    A radio frequency detection assembly is described and which includes a radio frequency detector which detects a radio frequency emission produced by a radio frequency emitter from a given location which is remote relative to the radio frequency detector; a location assembly electrically coupled with the radio frequency detector and which is operable to estimate the location of the radio frequency emitter from the radio frequency emission which has been received; and a radio frequency transmitter electrically coupled with the radio frequency detector and the location assembly, and which transmits a radio frequency signal which reports the presence of the radio frequency emitter.

  10. Waveform frequency notching

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin W.; Andrews, John

    2017-05-09

    The various technologies presented herein relate to incorporating one or more notches into a radar spectrum, whereby the notches relate to one or more frequencies for which no radar transmission is to occur. An instantaneous frequency is monitored and if the frequency is determined to be of a restricted frequency, then a radar signal can be modified. Modification can include replacing the signal with a signal having a different instantaneous amplitude, a different instantaneous phase, etc. The modification can occur in a WFS prior to a DAC, as well as prior to a sin ROM component and/or a cos ROM component. Further, the notch can be dithered to enable formation of a deep notch. The notch can also undergo signal transitioning to enable formation of a deep notch. The restricted frequencies can be stored in a LUT against which an instantaneous frequency can be compared.

  11. Universal Optical Frequency Comb

    CERN Document Server

    Savchenkov, A A; Liang, W; Ilchenko, V S; Seidel, D; Maleki, L

    2010-01-01

    We demonstrate that whispering gallery mode resonators can be utilized to generate optical frequency combs based on four wave mixing process at virtually any frequency that lies in the transparency window of the resonator host material. We show theoretically how the morphology of the resonator can be engineered to produce a family of spectrally equidistant modes with anomalous group velocity dispersion appropriate for the comb generation. We present experimental results for a frequency comb centered at 794 nm to support our theoretical findings.

  12. Probability and Relative Frequency

    Science.gov (United States)

    Drieschner, Michael

    2016-01-01

    The concept of probability seems to have been inexplicable since its invention in the seventeenth century. In its use in science, probability is closely related with relative frequency. So the task seems to be interpreting that relation. In this paper, we start with predicted relative frequency and show that its structure is the same as that of probability. I propose to call that the `prediction interpretation' of probability. The consequences of that definition are discussed. The "ladder"-structure of the probability calculus is analyzed. The expectation of the relative frequency is shown to be equal to the predicted relative frequency. Probability is shown to be the most general empirically testable prediction.

  13. Frequency Response Analysis Tool

    Energy Technology Data Exchange (ETDEWEB)

    Etingov, Pavel V.; Kosterev, Dmitry; Dai, T.

    2014-12-31

    Frequency response has received a lot of attention in recent years at the national level, which culminated in the development and approval of North American Electricity Reliability Corporation (NERC) BAL-003-1 Frequency Response and Frequency Bias Setting Reliability Standard. This report is prepared to describe the details of the work conducted by Pacific Northwest National Laboratory (PNNL) in collaboration with the Bonneville Power Administration and Western Electricity Coordinating Council (WECC) Joint Synchronized Information Subcommittee (JSIS) to develop a frequency response analysis tool (FRAT). The document provides the details on the methodology and main features of the FRAT. The tool manages the database of under-frequency events and calculates the frequency response baseline. Frequency response calculations are consistent with frequency response measure (FRM) in NERC BAL-003-1 for an interconnection and balancing authority. The FRAT can use both phasor measurement unit (PMU) data, where available, and supervisory control and data acquisition (SCADA) data. The tool is also capable of automatically generating NERC Frequency Response Survey (FRS) forms required by BAL-003-1 Standard.

  14. Frequency Response Analysis Tool

    Energy Technology Data Exchange (ETDEWEB)

    Etingov, Pavel V. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Kosterev, Dmitry [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Dai, T. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2014-12-01

    Frequency response has received a lot of attention in recent years at the national level, which culminated in the development and approval of North American Electricity Reliability Corporation (NERC) BAL-003-1 Frequency Response and Frequency Bias Setting Reliability Standard. This report is prepared to describe the details of the work conducted by Pacific Northwest National Laboratory (PNNL) in collaboration with the Bonneville Power Administration and Western Electricity Coordinating Council (WECC) Joint Synchronized Information Subcommittee (JSIS) to develop a frequency response analysis tool (FRAT). The document provides the details on the methodology and main features of the FRAT. The tool manages the database of under-frequency events and calculates the frequency response baseline. Frequency response calculations are consistent with frequency response measure (FRM) in NERC BAL-003-1 for an interconnection and balancing authority. The FRAT can use both phasor measurement unit (PMU) data, where available, and supervisory control and data acquisition (SCADA) data. The tool is also capable of automatically generating NERC Frequency Response Survey (FRS) forms required by BAL-003-1 Standard.

  15. Optimization of frequency quantization

    CERN Document Server

    Tibabishev, V N

    2011-01-01

    We obtain the functional defining the price and quality of sample readings of the generalized velocities. It is shown that the optimal sampling frequency, in the sense of minimizing the functional quality and price depends on the sampling of the upper cutoff frequency of the analog signal of the order of the generalized velocities measured by the generalized coordinates, the frequency properties of the analog input filter and a maximum sampling rate for analog-digital converter (ADC). An example of calculating the frequency quantization for two-tier ADC with an input RC filter.

  16. Validation of online versions of tinnitus questionnaires translated into Swedish

    Directory of Open Access Journals (Sweden)

    Karolina Müller

    2016-11-01

    Full Text Available BackgroundDue to the lack of objective measures for assessing tinnitus, its clinical evaluation largely relies on the use of questionnaires and psychoacoustic tests. A global assessment of tinnitus burden would largely benefit from holistic approaches that not only incorporate measures of tinnitus but also take into account associated fears, emotional aspects (stress, anxiety, and depression, and quality of life. In Sweden, only a few instruments are available for assessing tinnitus, and the existing tools lack validation. Therefore, we translated a set of questionnaires into Swedish and evaluated their reliability and validity in a group of tinnitus subjects. MethodsWe translated the English versions of the Tinnitus Functional Index (TFI, the Fear of Tinnitus Questionnaire (FTQ, the Tinnitus Catastrophizing Scale (TCS, the Perceived Stress Questionnaire (PSQ-30, and the Tinnitus Sample Case History Questionnaire (TSCHQ into Swedish. These translations were delivered via the internet with the already existing Swedish versions of the Tinnitus Handicap Inventory (THI, the Hospital Anxiety and Depression Scale (HADS, the Hyperacusis Questionnaire (HQ, and the World Health Organization Quality of Life questionnaire (WHOQoL-BREF. Psychometric properties were evaluated by means of internal consistency (Cronbach’s alpha α and test-retest reliability across a 9-week interval (Intraclass Correlation Coefficient ICC, Cohen’s kappa in order to establish construct as well as clinical validity using a sample of 260 subjects from a population-based cohort.ResultsInternal consistency was acceptable for all questionnaires (α >0.7 with the exception of the ‘social relationships’ subscale of the WHOQoL-BREF. Test-retest reliability was generally acceptable (ICC >.70, Cohens Kappa >.60 for the tinnitus-related questionnaires, except for the TFI ‘sense of control’ subscale and 15 items of the TSCHQ. Spearmen rank correlations showed that almost all

  17. Validation of Online Versions of Tinnitus Questionnaires Translated into Swedish

    Science.gov (United States)

    Müller, Karolina; Edvall, Niklas K.; Idrizbegovic, Esma; Huhn, Robert; Cima, Rilana; Persson, Viktor; Leineweber, Constanze; Westerlund, Hugo; Langguth, Berthold; Schlee, Winfried; Canlon, Barbara; Cederroth, Christopher R.

    2016-01-01

    Background: Due to the lack of objective measures for assessing tinnitus, its clinical evaluation largely relies on the use of questionnaires and psychoacoustic tests. A global assessment of tinnitus burden would largely benefit from holistic approaches that not only incorporate measures of tinnitus but also take into account associated fears, emotional aspects (stress, anxiety, and depression), and quality of life. In Sweden, only a few instruments are available for assessing tinnitus, and the existing tools lack validation. Therefore, we translated a set of questionnaires into Swedish and evaluated their reliability and validity in a group of tinnitus subjects. Methods: We translated the English versions of the Tinnitus Functional Index (TFI), the Fear of Tinnitus Questionnaire (FTQ), the Tinnitus Catastrophizing Scale (TCS), the Perceived Stress Questionnaire (PSQ-30), and the Tinnitus Sample Case History Questionnaire (TSCHQ) into Swedish. These translations were delivered via the internet with the already existing Swedish versions of the Tinnitus Handicap Inventory (THI), the Hospital Anxiety and Depression Scale (HADS), the Hyperacusis Questionnaire (HQ), and the World Health Organization Quality of Life questionnaire (WHOQoL-BREF). Psychometric properties were evaluated by means of internal consistency [Cronbach's alpha (α)] and test–retest reliability across a 9-week interval [Intraclass Correlation Coefficient (ICC), Cohen's kappa] in order to establish construct as well as clinical validity using a sample of 260 subjects from a population-based cohort. Results: Internal consistency was acceptable for all questionnaires (α > 0.7) with the exception of the “social relationships” subscale of the WHOQoL-BREF. Test–retest reliability was generally acceptable (ICC > 0.70, Cohens kappa > 0.60) for the tinnitus-related questionnaires, except for the TFI “sense of control” subscale and 15 items of the TSCHQ. Spearmen rank correlations showed that

  18. Psychometric properties of the painDETECT questionnaire in rhuematoid arthritis, psoriatic arthritis and spondyloarthritis

    DEFF Research Database (Denmark)

    Rifbjerg-Madsen, Signe; Wæhrens, Eva Elisabet Ejlersen; Danneskiold-Samsøe, Bente

    2017-01-01

    that can identify underlying pain mechanisms are needed. The painDETECT questionnaire (PDQ) was originally designed to differentiate between pain phenotypes. The objectives were to evaluate the psychometric properties of the PDQ in patients with inflammatory arthritis by applying Rasch analysis......) and classification consistency were calculated. RESULTS: The Rasch analysis revealed: (1) Acceptable psychometric rating scale properties; the frequency distribution peaked in category 0 except for item 5, threshold calibration >10 observations per category, no disorder in the category measures for all items, scale...

  19. Child abuse: validation of a questionnaire translated into Brazilian Portuguese

    Directory of Open Access Journals (Sweden)

    Glaucia Marengo

    2013-04-01

    Full Text Available This study sought to validate the Portuguese translation of a questionnaire on maltreatment of children and adolescents, developed by Russell et al. and to test its psychometric properties for use in Brazil. The original questionnaire was translated into Portuguese using a standardized forward-backward linguistic translation method. Both face and content validity were tested in a small pilot study (n = 8. In the main study, a convenience sample of 80 graduate dentistry students with different specialties, from Curitiba, PR, Brazil, were invited to complete the final Brazilian version of the questionnaire. Discriminant validity was assessed by comparing the results obtained from the questionnaire for different specialties (pediatric dentistry, for example. The respondents completed the questionnaire again after 4 weeks to evaluate test-retest reliability. The comparison of test versus retest questionnaire answers showed good agreement (kappa > 0.53, intraclass correlation > 0.84 for most questions. In regard to discriminant validity, a statistically significant difference was observed only in the experience and interest domains, in which pediatric dentists showed more experience with and interest in child abuse compared with dentists of other specialties (Mann-Whitney test, p < 0.05. The Brazilian version of the questionnaire was valid and reliable for assessing knowledge regarding child abuse by Portuguese-speaking dentists.

  20. Asthma control measurement using five different questionnaires: a prospective study.

    Science.gov (United States)

    Vermeulen, Francois; de Meulder, Isabelle; Paesmans, Marianne; Muylle, Inge; Bruyneel, Marie; Ninane, Vincent

    2013-09-01

    Questionnaires play a key place in the assessment of asthma control. Different questionnaires have been developed. However, it remains largely unknown whether they can be used interchangeably. We wondered whether the panel of frequently used scores would give similar measurement of asthma control. The present study aimed to assess the agreement between five specific questionnaires. In this prospective study, ninety-nine patients completed five commonly used asthma control scores: the GINA, the Asthma Control Test™, the Royal College of Physician score, the Asthma Therapy Assessment Questionnaire (ATAQ), and the Asthma Control Questionnaire(©) (ACQ). The kappa coefficient was used to assess the agreement between questionnaires. The agreement between the GINA and other scores was only moderate (kappa coefficients amounted from 0.41 to 0.60). With respect to the "controlled" level, all the other scores gave higher results than GINA. All other scores also tended to underestimate GINA "uncontrolled level". For the "partly controlled level" defined by 3 of the 5 questionnaires, ACQ identified the same percentage of patients than GINA while ATAQ overestimated this percentage. This study shows only moderate agreement between five commonly used asthma control scores. The GINA score showed the lowest percentage of controlled and the highest percentage of uncontrolled asthma. As a consequence, all these scores do not seem to evaluate the same symptoms. NCT01350661. © 2013 Elsevier Ltd. All rights reserved.

  1. Development and Validation of the Bicultural Youth Acculturation Questionnaire.

    Science.gov (United States)

    Kukaswadia, Atif; Janssen, Ian; Pickett, William; Bajwa, Jasmine; Georgiades, Katholiki; Lalonde, Richard N; Quon, Elizabeth C; Safdar, Saba; Pike, Ian

    2016-01-01

    Acculturation is a multidimensional process involving changes in behaviour and beliefs. Questionnaires developed to measure acculturation are typically designed for specific ethnic populations and adult experiences. This study developed a questionnaire that measures acculturation among ethnically diverse populations of youth that can be included as a module in population surveys. Questionnaires measuring acculturation in youth were identified in the literature. The importance of items from the existing questionnaires was determined using a Delphi process and this informed the development of our questionnaire. The questionnaire was then pilot tested using a sample of 248 Canadians aged 18-25 via an online system. Participants identified as East and South East Asian (27.8%), South Asian (17.7%) and Black (13.7%). The majority were 1st (33.5%) or 2nd generation immigrants (52.0%). After redundant items were eliminated, exploratory factor analysis grouped items into domains, and, for each domain, internal consistency, and convergent validity with immigrant generation then age at immigration estimated. A subset of participants re-completed the questionnaire for reliability estimation. The literature review yielded 117 articles that used 13 questionnaires with a total of 440 questions. The Delphi process reduced these to 32 questions. Pilot testing occurred in 248 Canadians aged 18-25. Following item reduction, 16 questions in three domains remained: dominant culture, heritage language, and heritage culture. All had good internal consistency (Cronbach's alphas > .75). The mean dominant domain score increased with immigrant generation (1st generation: 3.69 (95% CI: 3.49-3.89), 2nd: 4.13 (4.00-4.26), 3rd: 4.40 (4.19-4.61)), and mean heritage language score was higher among those who immigrated after age 12 than before (p = .0001), indicative of convergent validity. This Bicultural Youth Acculturation Questionnaire has demonstrated validity. It can be incorporated into

  2. [Some psychometric attributes of the Family Assessment Questionnaires].

    Science.gov (United States)

    Beauvale, Andrzej; de Barbaro, Bogdan; Namysłowska, Irena; Furgał, Mariusz

    2002-01-01

    In this article we present some of the more important findings from research aimed at the validation and normalisation of the Family Assessment Questionnaire (Dyadic Questionnaire, Family Questionnaire, Self-Estimation Questionnaire), which is the Polish adaptation of Manfred Cierpka's and Gabriele Frevert's "Familienboegen". In the presented study 1511 individuals from 557 families took part. Of these 658 individuals (including 162 children) came from 248 families which had no clinical health or adjustment problems, while 853 individuals (including 305 children) came from 309 families with problems due to schizophrenia, anorexia nervosa, coronary heart disease or family crisis. A new method of analysing raw results from the questionnaire scales was formulated and verified. This method was based on the criterium of sufficient satisfaction regarding the aspect of family life measured by the scale. The original scales of all the questionnaires (Task Completion, Role Performance, Communication, Emotionality, Affective Involvement, Control, and Values and norms) were characterised by average or low reliability; the general scales were characterised by high reliability (the Dyadic Questionnaire with very high reliability). As a result of factor analysis new scales were created with acceptable or high reliability. These were the scale of Positive statements, the scale of Negative statements in the dyadic and family questionnaires, and the scales of kindness, care and resentment in the Self-Estimation Questionnaire. The general scales and the factor scales generally significantly differentiated between the sub-samples selected due to the type of family problems present and relationship. On the other hand the 7 original scales did so only sporadically or weakly. Better results were obtained by families without health or adjustment problems while the worst results were obtained by families in crisis.

  3. The link between texting and motor vehicle collision frequency in the orthopaedic trauma population

    OpenAIRE

    Neil M. Issar; Kadakia, Rishin J.; James M. Tsahakis; Zachary T. Yoneda; Sethi, Manish K.; Mir, Hassan R.; Kristin Archer; Obremskey, William T.; A. Alex Jahangir

    2013-01-01

    Abstract: Background: This study will evaluate whether or not texting frequency while driving and/or texting frequency in general are associated with an increased risk of incurring a motor vehicle collision (MVC) resulting in orthopaedic trauma injuries. Methods: All patients who presented to the Vanderbilt University Medical Center Orthopaedic Trauma Clinic were administered a questionnaire to determine background information, mean phone use, texting frequency, texting frequency while drivin...

  4. PIRLS 2011 User Guide for the International Database. Supplement 1: International Version of the PIRLS 2011, Background Questionnaires and Curriculum Questionnaire

    Science.gov (United States)

    Foy, Pierre, Ed.; Drucker, Kathleen T., Ed.

    2013-01-01

    The PIRLS 2011 international database includes data for all questionnaires administered as part of the PIRLS 2011 assessment. This supplement contains the international version of the PIRLS 2011 background questionnaires and curriculum questionnaires in the following 5 sections: (1) Student Questionnaire; (2) Home Questionnaire (Learning to Read…

  5. Convergent and discriminant validity of FIRO-B questionnaire.

    Science.gov (United States)

    Salminen, S

    1991-12-01

    The Kramer-Froehle controversy about the construct validity of FIRO-B questionnaire was evaluated with a multitrait-multimethod design. 113 women and 26 men completed the FIRO-B questionnaire. After the examiner had given a lecture on the FIRO-dimensions, the subjects rated themselves on these dimensions. Only three out of six intercorrelations on the validity diagonal were statistically significant. Of the discriminant validity comparisons 80% met the required criterion. Our results confirmed Kramer's results about the construct validity of the FIRO-B questionnaire.

  6. African primary care research: performing surveys using questionnaires.

    Science.gov (United States)

    Govender, Indiran; Mabuza, Langalibalele H; Ogunbanjo, Gboyega A; Mash, Bob

    2014-04-25

    The aim of this article is to provide practical guidance on conducting surveys and the use of questionnaires for postgraduate students at a Masters level who are undertaking primary care research. The article is intended to assist with writing the methods section of the research proposal and thinking through the relevant issues that apply to sample size calculation, sampling strategy, design of a questionnaire and administration of a questionnaire. The articleis part of a larger series on primary care research, with other articles in the series focusing on the structure of the research proposal and the literature review, as well as quantitative data analysis.

  7. [Questionnaire methods used in the psychosomatic evaluation of tinnitus].

    Science.gov (United States)

    Eğilmez, Oğuz Kadir; Kalcıoğlu, M Tayyar; Kökten, Numan

    2014-01-01

    Tinnitus is a common disorder in ear, nose and throat practice. Not only muscular, vascular, neuronal, odiologic and ear pathologies, also psychological parameters contribute to the formation of tinnitus. Scales which evaluate patients' perception of tinnitus and how they are affected from tinnitus psychosomatically have gained increasing importance. Questionnaire studies are very assisting in terms of showing the degree of anxiety and depression experienced by the patients, diagnosis of the disease, evaluation of treatment efficacy, and patient follow-up. In this study, we reviewed the visual analog scale which measures the level of subjective perception in tinnitus, tinnitus evaluation questionnaires, and questionnaires measuring the level of quality of life and depression.

  8. African primary care research: performing surveys using questionnaires

    Directory of Open Access Journals (Sweden)

    Indiran Govender

    2014-04-01

    Full Text Available The aim of this article is to provide practical guidance on conducting surveys and the use of questionnaires for postgraduate students at a Masters level who are undertaking primary care research. The article is intended to assist with writing the methods section of the research proposal and thinking through the relevant issues that apply to sample size calculation, sampling strategy, design of a questionnaire and administration of a questionnaire. The article is part of a larger series on primary care research, with other articles in the series focusing on the structure of the research proposal and the literature review, as well as quantitative data analysis.

  9. Construction of a Benchmark for the User Experience Questionnaire (UEQ

    Directory of Open Access Journals (Sweden)

    Martin Schrepp

    2017-08-01

    Full Text Available Questionnaires are a cheap and highly efficient tool for achieving a quantitative measure of a product’s user experience (UX. However, it is not always easy to decide, if a questionnaire result can really show whether a product satisfies this quality aspect. So a benchmark is useful. It allows comparing the results of one product to a large set of other products. In this paper we describe a benchmark for the User Experience Questionnaire (UEQ, a widely used evaluation tool for interactive products. We also describe how the benchmark can be applied to the quality assurance process for concrete projects.

  10. Test-retest reliability of the Frankfurt Complaint Questionnaire.

    Science.gov (United States)

    Loas, Gwenolé; Yon, Valerie; Monestès, Jean Louis; Cuesta, Manuel J

    2011-04-01

    Long-term reliability of the Frankfurt Complaint Questionnaire (FCQ) was investigated in two follow-up studies of participants with psychosis using a test-retest method. In the first study (N = 56), the duration of the follow-up ranged from 6 months to 2 years; Spearman rho was .62 for the abridged (18 items) Spanish version of the questionnaire. In Study 2 (N = 21), in participants with stable schizophrenia, the follow-up ranged from 8 to 11 years; test-retest Spearman rho was .83 for the French version of the questionnaire. Subjective experiences could constitute, in psychosis-prone people, traits or markers of psychotic vulnerability.

  11. [Validation of a job expectancy questionnaire with secondary students].

    Science.gov (United States)

    Vázquez Alonso, Angel; Manassero Mas, María Antonia

    2008-11-01

    This study presents the validity and reliability analysis of a questionnaire that assesses the importance of some general job features, for the diagnosis of youths' expectations and priorities concerning a future job. The results show an 8-factor structure with a very good fit to the theoretical structure of the questionnaire, and reliability for the entire questionnaire and for the factor sub-scales is also quite satisfactory. The analysis of the sub-scale scores reveals that youths' most important factor is Self-actualization, whereas the Manual dimension is the least important one.

  12. FET frequency discriminator

    Science.gov (United States)

    Mawhinney, F. D.

    1982-03-01

    The FET Frequency Discriminator is an experimental microwave frequency discriminator developed for use in a specialized set-on VCO frequency memory system. Additional development and evaluation work has been done during this program to more fully determine the applicability of the FET frequency discriminator as a low-cost, expendable receiver front-end for both surveillance and ECM systems. Various methods for adjusting the frequency-to-voltage characteristic of the discriminator as well as the effects of detector characteristics and ambient temperature changes were evaluated. A number of discriminators for use in the 7- to 11-GHz and the 11to 18-GHz bands were fabricated and tested. Interim breadboard and final packaged models were either delivered or installed in developmental frequency systems. The major limitations and deficiencies of the FET frequency discriminator that were reviewed during the program include the effects of temperature, input power level variations, nonlinearity, and component repeatability. Additional effort will be required to advance the developmental status of the FET frequency discriminator to the level necessary for inclusion in low-cost receiver systems, but the basic simplicity of the approach continues to show much promise.

  13. Microfabricated ion frequency standard

    Science.gov (United States)

    Schwindt, Peter; Biedermann, Grant; Blain, Matthew G.; Stick, Daniel L.; Serkland, Darwin K.; Olsson, III, Roy H.

    2010-12-28

    A microfabricated ion frequency standard (i.e. an ion clock) is disclosed with a permanently-sealed vacuum package containing a source of ytterbium (Yb) ions and an octupole ion trap. The source of Yb ions is a micro-hotplate which generates Yb atoms which are then ionized by a ultraviolet light-emitting diode or a field-emission electron source. The octupole ion trap, which confines the Yb ions, is formed from suspended electrodes on a number of stacked-up substrates. A microwave source excites a ground-state transition frequency of the Yb ions, with a frequency-doubled vertical-external-cavity laser (VECSEL) then exciting the Yb ions up to an excited state to produce fluorescent light which is used to tune the microwave source to the ground-state transition frequency, with the microwave source providing a precise frequency output for the ion clock.

  14. Breakfast frequency among adolescents

    DEFF Research Database (Denmark)

    Pedersen, Trine Pagh; Holstein, Bjørn E; Damsgaard, Mogens Trab

    2016-01-01

    , quality of family communication and family support. Further, analyses suggested that the associations were more pronounced among girls, immigrants and adolescents from other family structure than traditional. The study highlights the importance of the family setting in promoting regular breakfast......OBJECTIVE: To investigate (i) associations between adolescents' frequency of breakfast and family functioning (close relations to parents, quality of family communication and family support) and (ii) if any observed associations between breakfast frequency and family functioning vary...... (n 3054) from a random sample of forty-one schools. RESULTS: Nearly one-quarter of the adolescents had low breakfast frequency. Low breakfast frequency was associated with low family functioning measured by three dimensions. The OR (95 % CI) of low breakfast frequency was 1·81 (1·40, 2...

  15. The Multicultural Personality Questionnaire : A multidimensional instrument of multicultural effectiveness

    NARCIS (Netherlands)

    Van der Zee, KI; Van Oudenhoven, JP

    2000-01-01

    In today's global business environment, executive work is becoming more international in orientation. Several skills and traits may underlie executive success in an inter national environment. The Multicultural Personality Questionnaire was developed as a multidimensional instrument aimed at measuri

  16. A Questionnaire to Measure Children's Awareness of Strategic Reading Processes.

    Science.gov (United States)

    Schmitt, Maribeth Cassidy

    1990-01-01

    Describes the Metacomprehension Strategy Index, a multiple-choice questionnaire, and its supporting validity and reliability data. Discusses how teachers can use and interpret this information to evaluate middle and upper elementary students' knowledge of strategic reading processes. (MG)

  17. Cross Cultural Adaptation of the Menopause Specific Questionnaire ...

    African Journals Online (AJOL)

    Menopause is a stage of life, which every woman passes ... responsible to the children and husbands,[6] but menopausal .... Internal consistency (Cronbach's alpha) of each subscale of MENQOL questionnaire by demographic characteristics.

  18. Formatting a Paper-based Survey Questionnaire: Best Practices

    Directory of Open Access Journals (Sweden)

    Elizabeth Fanning

    2005-08-01

    Full Text Available This paper summarizes best practices with regard to paper-based survey questionnaire design. Initial design considerations, the cover and cover page, directions, ordering of questions, navigational path (branching, and page design are discussed.

  19. Validation of the Otitis Media-6 Questionnaire for European Portuguese

    Directory of Open Access Journals (Sweden)

    Ana Rita Lameiras

    2017-05-01

    Conclusion: The Portuguese version of the Otitis Media-6 questionnaire is a valid, reliable and sensitive instrument to evaluate the health-related quality of life in Portuguese children with otitis media.

  20. Evaluating the Communication Satisfaction Questionnaire as a Communication Audit Tool

    NARCIS (Netherlands)

    Zwijze-Koning, Karen; Jong, de Menno

    2007-01-01

    Despite the number of publications about auditing organizational communication, scholars have paid little attention to the reliability and validity of individual audit techniques. This study examines the merits and restrictions of the Communication Satisfaction Questionnaire (CSQ) by comparing CSQ r

  1. Design of psychosocial factors questionnaires: a systematic measurement approach.

    Science.gov (United States)

    Villalobos, Gloria H; Vargas, Angélica M; Rondón, Martin A; Felknor, Sarah A

    2013-01-01

    Evaluation of psychosocial factors requires instruments that measure dynamic complexities. This study explains the design of a set of questionnaires to evaluate work and non-work psychosocial risk factors for stress-related illnesses. The measurement model was based on a review of literature. Content validity was performed by experts and cognitive interviews. Pilot testing was carried out with a convenience sample of 132 workers. Cronbach's alpha evaluated internal consistency and concurrent validity was estimated by Spearman correlation coefficients. Three questionnaires were constructed to evaluate exposure to work and non-work risk factors. Content validity improved the questionnaires coherence with the measurement model. Internal consistency was adequate (α = 0.85-0.95). Concurrent validity resulted in moderate correlations of psychosocial factors with stress symptoms. Questionnaires' content reflected a wide spectrum of psychosocial factors sources. Cognitive interviews improved understanding of questions and dimensions. The structure of the measurement model was confirmed. Copyright © 2012 Wiley Periodicals, Inc.

  2. Coral farming – a questionnaire based prospect for coastal ...

    African Journals Online (AJOL)

    Coral farming – a questionnaire based prospect for coastal inhabitants' ... tourism industry; altogether deteriorating the reefs to the verge of destruction. ... already existing aquaculture, available local community and excellent water conditions.

  3. Reflux symptom questionnaire in the diagnosis of reflux oesophagitis

    Institute of Scientific and Technical Information of China (English)

    ZHANG Li; MENG Ling-mei; ZHANG Dong-hong; HUANG Shu-mei; QU Xue-fu; ZHOU Li-ya; LIN San-ren; DING Shi-gang; HUANG Yong-hui; GU Fang; LI Yuan; ZHANG Jing; YAN Xiu-e

    2007-01-01

    @@ Reflux symptom questionnaire (RSQ) is a useful tool in epidemiological study of gastroesophageal reflux disease (GERD),(1,2) but the correlation between RSQ and the refluX oesophagitis (RE) is still unclear.

  4. Validation of the Danish language Injustice Experience Questionnaire

    DEFF Research Database (Denmark)

    Schultz, Rikke

    2015-01-01

    /somatoform symptoms. These patients also completed questionnaires concerning sociodemographics, anxiety and depression, subjective well-being, and overall physical and mental functioning. Our results showed satisfactory interpretability and face validity, and high internal consistency (Cronbach's alpha = .90...

  5. A self-report comorbidity questionnaire for haemodialysis patients

    OpenAIRE

    Sridharan, Sivakumar; Berdeprado, Jocelyn; Vilar, Enric; Roberts, Justin; Farrington, Ken

    2014-01-01

    Background Patients with end-stage renal disease (ESRD) have multiple comorbid conditions. Obtaining comorbidity data from medical records is cumbersome. A self-report comorbidity questionnaire is a useful alternative. Our aim in this study was to examine the predictive value of a self-report comorbidity questionnaire in terms of survival in ESRD patients. Methods We studied a prospective cross-sectional cohort of 282 haemodialysis (HD) patients in a single centre. Participants were administe...

  6. Preliminary reliability of the five item physical activity questionnaire

    OpenAIRE

    Cho, Min-Haeng

    2016-01-01

    [Purpose] The purpose of this study was to design a physical activity questionnaire reflecting on the basic principles and recommendations of exercise and to examine its reliability. [Subjects and Methods] 342 males and 374 females from the community centers (senior center, residential culture center, sport center, and YWCA center) participated in this study. [Results] The test-retest reliability of the physical activity questionnaire, measured with an interval of three months, being between ...

  7. Work Environment Questionnaires and Army Unit Effectiveness and Satisfaction Measures

    Science.gov (United States)

    1977-09-01

    en4 Semel 11". ATTN: PERI-WP. SMoo Esenhow Amenu. mAxie.ke Virgnia 2222. FINA flhPOIIO:This "wt inybe dwsovg Own it is no Iorsp twedid. Pfe .. do not mtm...Index h. McClelland & Atkinson Organizational Inventory Organizational Climate Survey Questionnaire Work Analysis Questionnaire Performance Audit i...Checklist York: Basic Books, 1973. Forum Performance Audit Forum performance audit . Boston: The Forum Corporation, 1974. General Organizational General

  8. The Danish anal sphincter rupture questionnaire: Validity and reliability

    DEFF Research Database (Denmark)

    Due, Ulla; Ottesen, Marianne

    2008-01-01

    among health care personnel, followed by an expert panel discussion. Ten women were interviewed about their understanding and attitude toward answering the questionnaire and it was pre-tested on 52 women with ASR. The questionnaire was revised five times during the validation process. The final version...... including sexual problems, impact on quality of life and need for treatment among women 6-8 months after ASR....

  9. Validation of a New Questionnaire with Generic and Disease-Specific Qualities: The Mcgill Copd Quality of Life Questionnaire

    Directory of Open Access Journals (Sweden)

    Smita Pakhale

    2012-01-01

    Full Text Available BACKGROUND: A validated health-related quality of life questionnaire in chronic obstructive pulmonary disease (COPD with advantages of both generic- and disease-specific questionnaires is needed to capture patients’ perspectives of severity and impact of the disease. The McGill COPD questionnaire was created to include these advantages in English and French. It assesses three domains: symptoms, physical function and feelings with 29 items (12 from the 36-item Short-Form Health Survey with 17 from the previously developed COPD-specific module.

  10. Frequency comb swept lasers.

    Science.gov (United States)

    Tsai, Tsung-Han; Zhou, Chao; Adler, Desmond C; Fujimoto, James G

    2009-11-09

    We demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FC-FDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep rate of 1kHz and 120kHz, respectively over a 135nm tuning range centered at 1310nm with average output powers of 50mW. A 25GHz free spectral range frequency comb filter in the swept lasers causes the lasers to generate a series of well defined frequency steps. The narrow bandwidth (0.015nm) of the frequency comb filter enables a approximately -1.2dB sensitivity roll off over approximately 3mm range, compared to conventional swept source and FDML lasers which have -10dB and -5dB roll offs, respectively. Measurements at very long ranges are possible with minimal sensitivity loss, however reflections from outside the principal measurement range of 0-3mm appear aliased back into the principal range. In addition, the frequency comb output from the lasers are equally spaced in frequency (linear in k-space). The filtered laser output can be used to self-clock the OCT interference signal sampling, enabling direct fast Fourier transformation of the fringe signals, without the need for fringe recalibration procedures. The design and operation principles of FC swept lasers are discussed and designs for short cavity lasers for OCT and interferometric measurement applications are proposed.

  11. Construction and validation of attitudes toward plagiarism questionnaire.

    Science.gov (United States)

    Mavrinac, Martina; Brumini, Gordana; Bilić-Zulle, Lidija; Petrovecki, Mladen

    2010-06-01

    To develop and test the psychometric characteristics of a questionnaire measuring attitudes toward plagiarism. Participants were 227 undergraduates and graduate students (128 women and 99 men) from three Croatian universities, with a median age of 21 years (range 18 to 48). Research was conducted from March to June 2009. For the purpose of construction of the first version of the questionnaire, 67 statements (items) were developed. The statements were based on the relevant literature and were developed following rules and recommendations for questionnaire writing, and 36 items were chosen for final validation. Factor analysis was used to find out the factor structure of the questionnaire and to measure construct validity. The final version of the questionnaire consisted of 29 items divided into a three-factor structure: factor I - positive attitude toward plagiarism (12 items); factor II - negative attitude toward plagiarism (7 items); and factor III - subjective norms toward plagiarism (10 items). Cronbach alpha was calculated to confirm the reliability of the scale: factor I - alpha=0.83; factor II - alpha=0.79; and factor III - alpha=0.85. Correlations between factors were: -0.37 between I and II, -0.41 between I and III, and +0.31 between II and III. Attitudes Toward Plagiarism questionnaire was developed, with good psychometric characteristics. It will be used in future research as a standardized tool for measuring attitudes toward plagiarism.

  12. A Turkish adaptation of the Emotion Regulation Questionnaire

    Directory of Open Access Journals (Sweden)

    Jale Eldeleklioğlu

    2015-04-01

    Full Text Available This study aimed to adapt the Emotional Regulation Questionnaire into Turkish and investigate its validity and reliability. The Turkish version of the Emotion Regulation Questionnaire was administered to 442 university students. Firstly, language equivalence of the Turkish version the Emotional Regulation Questionnaire was investigated and findings indicated that the Turkish translation of the Emotion Regulation Questionnaire is equivalent to the original form. Confirmatory factor analyses successfully revealed the two-factor (reappraisal and suppression structure of the Turkish version the Emotional Regulation Questionnaire. Further, based on the two-factor model, results from multi-group analysis indicated that the Turkish version of the Emotional Regulation Questtionnaire has the property of strict factorial invariance across gender, including equal factor loadings, equal item intercepts, and equal item uniqueness (error variances and covariances. The internal consistencies were .78 for the reappraisal and .73 for the suppression subscales. Test-retest reliabilities were .74 for the reappraisal and .72 for the suppression subscales. Overall, the Turkish version of the Emotional Regulation Questionnaire has adequate psychometric properties and can be used to examine emotion regulation among Turkish university students. 

  13. Quality Assessment of TPB-Based Questionnaires: A Systematic Review

    Science.gov (United States)

    Oluka, Obiageli Crystal; Nie, Shaofa; Sun, Yi

    2014-01-01

    Objective This review is aimed at assessing the quality of questionnaires and their development process based on the theory of planned behavior (TPB) change model. Methods A systematic literature search for studies with the primary aim of TPB-based questionnaire development was conducted in relevant databases between 2002 and 2012 using selected search terms. Ten of 1,034 screened abstracts met the inclusion criteria and were assessed for methodological quality using two different appraisal tools: one for the overall methodological quality of each study and the other developed for the appraisal of the questionnaire content and development process. Both appraisal tools consisted of items regarding the likelihood of bias in each study and were eventually combined to give the overall quality score for each included study. Results 8 of the 10 included studies showed low risk of bias in the overall quality assessment of each study, while 9 of the studies were of high quality based on the quality appraisal of questionnaire content and development process. Conclusion Quality appraisal of the questionnaires in the 10 reviewed studies was successfully conducted, highlighting the top problem areas (including: sample size estimation; inclusion of direct and indirect measures; and inclusion of questions on demographics) in the development of TPB-based questionnaires and the need for researchers to provide a more detailed account of their development process. PMID:24722323

  14. Validating and Investigating Reliability of Comprehensive Feeding Practices Questionnaire

    Directory of Open Access Journals (Sweden)

    Saeid Doaei

    2013-03-01

    Full Text Available Background: The present research aims to validate and discuss the reliability of Comprehensive Feeding Practices Questionnaire (CFPQ. Materials and Methods: In this cross-sectional study, 150 mothers with 3-6 year old children in the city of Rasht were selected through cluster random sampling from the public and private kindergartens in 2010. After being confident about the translation validity, the degree of validation (content and structure and validity (test-retest reliability and internal consistency of the questionnaire was examined. Results: The degree of validation of questionnaire content, except questions 2, 16 and 46, was at a high level and these three questions were omitted. The method of the consistency of factors and total scores of the questionnaire was used to study the validation of structure, which was satisfactory and varied between 0.30-0.72. The validity of questionnaire was examined through test-retest and Cronbach's alpha methods. The Intraclass Correlation Coefficient (ICC was between 0.80-0.91 and Cronbach's alpha was between 0.80-0.90. Conclusion: In general, the Comprehensive Feeding Practices Questionnaire (CFPQ was proved to be valid and with respect to the results obtained from the present research, it can be used in the research on child diet.

  15. Application of summative content analysis to a postal questionnaire.

    Science.gov (United States)

    Griffiths, Thomas Howard

    2016-01-01

    Content analysis of replies to closed questions in questionnaires can be undertaken to understand remarks that may explain the responses, provide illustrative examples of issues raised in the questionnaire, define new issues or issues of importance that were not covered in the questionnaire and inform the design of new questions in future surveys. To discuss the usefulness of summative content analysis to free text in postal questionnaires. Content analysis provides useful comparative insights between two respondent groups in the case example provided. Five themes emerged: poor understanding of the concept of 'patient lateral transfer work technique' and the direct instrument nursing observation (DINO) instrument's key directions; outcomes of patient transfer; positive responses; manual handling risk; and poor translation into English of DINO. Respondents need an opportunity to clarify their responses to questionnaires using free text, to provide insight into their understanding of the question being asked, understanding of the concept or construct being discussed, and data triangulation through the confirmation of item responses and free-text comments. Responses to questions in a postal questionnaire and the opportunity for free-text commentary by respondents enable the identification of hidden meanings behind tickbox responses to questions.

  16. Disposal frequencies of selected recyclable wastes in Dar es Salaam.

    Science.gov (United States)

    Mgaya, Prosper; Nondek, Lubomir

    2004-01-01

    A statistical survey of households based upon questionnaires distributed via primary schools has been carried out in five wards of Dar es Salaam, Tanzania, to estimate disposal frequencies (number of items disposed per week) for newsprint, metal cans, glass and plastic containers and plastic shopping bags. Plastic shopping bags are disposed most frequently while glass containers are disposed least frequently. The statistical distribution of disposal frequencies, which seems to be influenced by household income, is well described by Poisson distribution. Disposal frequencies are mutually correlated at 95% level of probability despite the differences in disposal patterns of individual households.

  17. Medical literature search practice in paediatric junior medical staff: a questionnaire survey.

    Science.gov (United States)

    Shirkhedkar, P; Day, A S

    2008-03-01

    With increasing medical knowledge and emphasis upon evidence-based medicine, it is essential for practitioners to have optimal literature searching skills. There are limited data regarding the use of online information retrieval (IR) systems by paediatric junior medical officers (JMO). The aims of this questionnaire-based study of a group of JMO were to assess the accessibility, frequency of use and preferences for electronic information resources, and to ascertain their perceived adequacy of training and expertise in online searching. Questionnaires were distributed to 319 JMO at two Australian children's hospitals. A total of 106 questionnaires were returned (33.2% response rate). Twenty-four-hour access to electronic medical databases was available to almost 90% of respondents at work or home. Five or less online searches per month were performed by 53.7% of respondents. Previous formal training in database searching was reported by 72.4% of respondents, but over half felt it had been inadequate. Most JMO (91.5%) acknowledged a need for further training in search skills. In spite of widespread availability of online resources, use of these resources was sub-optimal in this group of trainee doctors. Most respondents reported a need for further training in electronic searching. Continuing targeted education in electronic database searching is required to ensure that future doctors develop skills to ensure optimal use of medical literature.

  18. A comparison of Likert scale and visual analogue scales as response options in children's questionnaires.

    Science.gov (United States)

    van Laerhoven, H; van der Zaag-Loonen, H J; Derkx, B H F

    2004-06-01

    To examine which response options children prefer and which they find easiest to use, and to study the relative reliability of the different response options. A consecutive group of unselected children (n = 120) filled out three questionnaires in a paediatric outpatient clinic. Each questionnaire included seven similar questions, but had different response options: the Likert scale, the Visual Analogue Scale (VAS) and the numeric VAS. In general, the questions were not related to the children's particular diseases, but dealt with the frequency of simple activities, their feelings and opinions. The pages with the three different response options were offered in random order. Afterwards, the children rated their preference and ease of use of the different response options on a scale from one to 10. Children preferred the Likert scale (median mark 9.0) over the numeric VAS (median mark 8.0) and the simple VAS (median 6.0). They considered the Likert scale easiest to fill out (median mark 10 vs 9 and 7.5 for the numeric and simple VAS, respectively). Results of the different response options correlated strongly with each other (rho = 0.67-0.90, p Likert scale over the numeric and simple VAS and find it easiest to complete. The Likert scale, the simple VAS and the numeric VAS are of comparable reliability. The Likert scale is recommended for use in questionnaires for children, although research into larger and more diverse samples is needed.

  19. Broadband frequency conversion

    DEFF Research Database (Denmark)

    Sanders, Nicolai Højer; Jensen, Ole Bjarlin; Dam, Jeppe Seidelin;

    that ensures phase matching over a broad spectral range in the BBO crystal. Since the tuning mechanism relies on all-passive components with extremely short response times the proposed method is well suited for short pulse, broad bandwidth laser sources like mode-locked lasers or super-continuum sources......We demonstrate a method for frequency conversion of broadly tunable or broad bandwidth light in a static, passive setup. Using simple optical components like lenses, mirrors and gratings and a BiBO crystal as the nonlinear material, we are able to frequency double a single-frequency, tunable...

  20. Quantum frequency downconversion experiment

    CERN Document Server

    Takesue, Hiroki

    2010-01-01

    We report the first quantum frequency downconversion experiment. Using the difference frequency generation process in a periodically poled lithium niobate waveguide, we successfully observed the phase-preserved frequency downconversion of a coherent pulse train with an average photon number per pulse of $<$1, from the 0.7-$\\mu$m visible wavelength band to the 1.3-$\\mu$m telecom band. We expect this technology to become an important tool for flexible photonic quantum networking, including the realization of quantum repeater systems over optical fiber using atom-photon entanglement sources for the visible wavelength bands.

  1. Pragmatic circuits frequency domain

    CERN Document Server

    Eccles, William

    2006-01-01

    Pragmatic Circuits: Frequency Domain goes through the Laplace transform to get from the time domain to topics that include the s-plane, Bode diagrams, and the sinusoidal steady state. This second of three volumes ends with a-c power, which, although it is just a special case of the sinusoidal steady state, is an important topic with unique techniques and terminology. Pragmatic Circuits: Frequency Domain is focused on the frequency domain. In other words, time will no longer be the independent variable in our analysis. The two other volumes in the Pragmatic Circuits series include titles on DC

  2. Motives underlying healthy eating: using the Food Choice Questionnaire to explain variation in dietary intake.

    Science.gov (United States)

    Pollard, T M; Steptoe, A; Wardle, J

    1998-04-01

    The Food Choice Questionnaire (FCQ), which measures the reported importance to a given individual of nine factors underlying food choice, and a food frequency questionnaire, were administered to 241 participants, who were also required to classify their diet as either 'standard', 'low in red meat' or 'vegetarian'. Respondents describing their diet as low in red meat attributed greater importance to health, natural content, weight control and ethical concern in their food choice than did those who described their diets as standard, whereas vegetarians differed significantly from those with a standard diet only on the score for ethical concern. Differences between men and women and between students and non-students in the frequency of consumption of a number of foods were shown to be mediated by differences in the importance attached to FCQ factors. Thus the generally healthier diets of women compared to men appeared to be accounted for by the greater importance attributed by women to weight control, natural content and ethical concerns.

  3. Vitamin D Dietary Intake Questionnaire Validation Conducted among Young Polish Women.

    Science.gov (United States)

    Głąbska, Dominika; Guzek, Dominika; Sidor, Patrycja; Włodarek, Dariusz

    2016-01-05

    Due to inadequate intake of Vitamin D, identification of individuals characterised by the highest risk of deficiencies is one of the more crucial tasks for public health. The aim of the presented study was to assess the validity and reproducibility of the designed Vitamin D dietary intake questionnaire based on food frequency assessment--VIDEO-FFQ (VItamin D Estimation Only--Food Frequency Questionnaire) in a group of Polish women aged 20-30 years. Seventy-five participants kept a three-day dietary record and filled out the VIDEO-FFQ twice (immediately after the three-day dietary record and after six weeks). The assessment of validity and reproducibility was conducted by verifying standard errors of estimation, median differences, and percentages of individuals classified into tertiles, correlations and Bland-Altman plots. The Vitamin D intake for the majority of the surveyed women was inadequate as over 85% of them were characterised by values of intake lower than 5.0 μg per day. The results allowed concluding that a high accuracy of the VIDEO-FFQ was achieved. The required Bland-Altman index values lower than 5.0% were obtained, confirming satisfactory validity and reproducibility. The VIDEO-FFQ may be deemed a convenient practical tool for the estimation of Vitamin D intake in young women.

  4. Abbreviated psychologic questionnaires are valid in patients with hand conditions.

    Science.gov (United States)

    Bot, Arjan G J; Becker, Stéphanie J E; van Dijk, C Niek; Ring, David; Vranceanu, Ana-Maria

    2013-12-01

    The Pain Catastrophizing Scale (PCS) and Short Health Anxiety Inventory (SHAI) can help hand surgeons identify opportunities for psychologic support, but they are time consuming. If easier-to-use tools were available and valid, they might be widely adopted. We tested the validity of shorter versions of the PCS and SHAI, the PCS-4 and the SHAI-5, by assessing: (1) the difference in mean scaled scores of the short and long questionnaires; (2) floor and ceiling effects between the short and long questionnaires; (3) correlation between the short questionnaires and the outcome measures (an indication of construct validity); and (4) variability in disability and pain, between the short and long questionnaires. One hundred sixty-four new or followup adult patients in one hand surgery clinic completed the SHAI-18, SHAI-5, PCS-13, PCS-4, Patient Health Questionnaire (PHQ)-9, PHQ-2, DASH, and QuickDASH questionnaires, and an ordinal pain scale, as part of a prospective cross-sectional study. Mean scores for the short and long questionnaires were compared with paired t-tests. Floor and ceiling effects were calculated. Pearson's correlation was used to assess the correlation between the short and long questionnaires and with outcome measures. Regression analyses were performed to find predictors of pain and disability. There were small, but significant differences between the mean scores for the DASH and QuickDASH (QuickDASH higher), SHAI-18 and SHAI-5 (SHAI-18 higher), and PCS-13 and PCS-4 (PCS-4 higher), but not the PHQ-9 and PHQ-2. Floor effects ranged between 0% and 65% and ceiling effects between 0% and 3%. There were greater floor effects for the PHQ-2 than for the PHQ-9, but floor and ceiling effects were otherwise comparable for the other short and long questionnaires. All questionnaires showed convergent and divergent validity and criterion validity was shown in multivariable analyses. Content validity, construct convergent validity, and criterion validity were

  5. Single frequency semiconductor lasers

    CERN Document Server

    Fang, Zujie; Chen, Gaoting; Qu, Ronghui

    2017-01-01

    This book systematically introduces the single frequency semiconductor laser, which is widely used in many vital advanced technologies, such as the laser cooling of atoms and atomic clock, high-precision measurements and spectroscopy, coherent optical communications, and advanced optical sensors. It presents both the fundamentals and characteristics of semiconductor lasers, including basic F-P structure and monolithic integrated structures; interprets laser noises and their measurements; and explains mechanisms and technologies relating to the main aspects of single frequency lasers, including external cavity lasers, frequency stabilization technologies, frequency sweeping, optical phase locked loops, and so on. It paints a clear, physical picture of related technologies and reviews new developments in the field as well. It will be a useful reference to graduate students, researchers, and engineers in the field.

  6. Microwave Radiometer - high frequency

    Data.gov (United States)

    Oak Ridge National Laboratory — The Microwave Radiometer-High Frequency (MWRHF) provides time-series measurements of brightness temperatures from two channels centered at 90 and 150 GHz. These two...

  7. The craving experience questionnaire: a brief, theory-based measure of consummatory desire and craving.

    Science.gov (United States)

    May, Jon; Andrade, Jackie; Kavanagh, David J; Feeney, Gerald F X; Gullo, Mathew J; Statham, Dixie J; Skorka-Brown, Jessica; Connolly, Jennifer M; Cassimatis, Mandy; Young, Ross McD; Connor, Jason P

    2014-05-01

    Research into craving is hampered by lack of theoretical specification and a plethora of substance-specific measures. This study aimed to develop a generic measure of craving based on elaborated intrusion (EI) theory. Confirmatory factor analysis (CFA) examined whether a generic measure replicated the three-factor structure of the Alcohol Craving Experience (ACE) scale over different consummatory targets and time-frames. Twelve studies were pooled for CFA. Targets included alcohol, cigarettes, chocolate and food. Focal periods varied from the present moment to the previous week. Separate analyses were conducted for strength and frequency forms. Nine studies included university students, with single studies drawn from an internet survey, a community sample of smokers and alcohol-dependent out-patients. A heterogeneous sample of 1230 participants. Adaptations of the ACE questionnaire. Both craving strength [comparative fit indices (CFI = 0.974; root mean square error of approximation (RMSEA) = 0.039, 95% confidence interval (CI) = 0.035-0.044] and frequency (CFI = 0.971, RMSEA = 0.049, 95% CI = 0.044-0.055) gave an acceptable three-factor solution across desired targets that mapped onto the structure of the original ACE (intensity, imagery, intrusiveness), after removing an item, re-allocating another and taking intercorrelated error terms into account. Similar structures were obtained across time-frames and targets. Preliminary validity data on the resulting 10-item Craving Experience Questionnaire (CEQ) for cigarettes and alcohol were strong. The Craving Experience Questionnaire (CEQ) is a brief, conceptually grounded and psychometrically sound measure of desires. It demonstrates a consistent factor structure across a range of consummatory targets in both laboratory and clinical contexts. © 2014 Society for the Study of Addiction.

  8. Acromegaly Quality of Life Questionnaire (AcroQoL

    Directory of Open Access Journals (Sweden)

    Lara Nuria

    2004-02-01

    Full Text Available Abstract Acromegaly is a chronic disease with an important impact on patients, Health Related Quality of Life (HRQoL. The ability to effectively measure Health Related Quality of Life is central to describing the impacts of disease or treatment upon the patient, therefore the importance of having a disease specific questionnaire for acromegaly. For the development of the AcroQoL questionnaire different sources of information were used: first a literature search was performed to identify relevant papers describing the impact of acromegaly in HRQoL, second the main domains of impact on HRQoL were identified by 10 experts endocrinologists, and third ten in-depth semi-structured interviews were conducted in acromegalic patients to identify domains and items related to the self-perceived impact of acromegaly in patients' life. After a proper qualitative analysis a preliminary 38 item questionnaire was obtained. Rasch analysis concluded with a final 22 item questionnaire. The measurement properties (validity and reliability of the resulting final questionnaire were tested and compared using standard procedures (Cronbach's Alpha and item-total correlation. The evaluation of the item parameters confirmed the construct validity of the new instrument. Responsiveness to change was assessed in a small sample of 32 acromegalic patients with active disease in Spain who were administered the AcroQoL and the generic questionnaire EuroQoL 5-D. The results showed a statistically significant relationship between all the dimensions of AcroQoL and the VAS (visual analogic scale of EQ-5D. An improvement in the global score of AcroQoL was related to a global improvement in the VAS of the EQ-5D. Following the current recommended standard methodology the Spanish questionnaire was translated into eleven other languages.

  9. Development and preliminary validation of Chinese preschoolers' eating behavior questionnaire.

    Directory of Open Access Journals (Sweden)

    Xun Jiang

    Full Text Available BACKGROUND: The objective of this study was to develop a questionnaire for caregivers to assess the eating behavior of Chinese preschoolers. METHODS: To assess children's eating behaviors, 152 items were derived from a broad review of the literature related to epidemiology surveys and the assessment of children's eating behaviors. All of these items were reviewed by 50 caregivers of preschoolers and 10 experienced pediatricians. Seventy-seven items were selected for use in a primary questionnaire. After conducting an exploratory factor analysis and a variability analysis on the data from 313 preschoolers used to evaluate this primary questionnaire, we deleted 39 of these 77 items. A Chinese Preschoolers' Eating Behavior Questionnaire (CPEBQ was finally established from the remaining 38 items. The structure of this questionnaire was explored by factor analysis, and its reliability, validity and discriminative ability were evaluated with data collected from caregivers of 603 preschoolers. RESULTS: The CPEBQ consisted of 7 dimensions and 38 items. The 7 dimensions were food fussiness, food responsiveness, eating habit, satiety responsiveness, exogenous eating, emotional eating and initiative eating. The Cronbach's α coefficient for the questionnaire was 0.92, and the test-retest reliability was 0.72. There were significant differences between the scores of normal-weight, overweight and obese preschoolers when it was referred to food fussiness, food responsiveness, eating habits, satiety responsiveness and emotional eating (p<0.05. Differences in caregiver's education levels also had significant effects on scores for food fussiness, eating habits and exogenous eating (p<0.05. CONCLUSIONS: The CPEBQ satisfies the conditions of reliability and validity, in accordance with psychometric demands. The questionnaire can be employed to evaluate the characteristics of Chinese preschoolers' eating behaviors; therefore, it can be used in child health care

  10. [Mental Health in the General Hospital: Results of the Patient Health Questionnaire (PHQ) in Four Hospital Services].

    Science.gov (United States)

    Castro-Camacho, Leonidas; Escobar, Juan Manuel; Sáenz-Moncaleano, Camilo; Delgado-Barrera, Lucía; Aparicio-Turbay, Soraya; Molano, Juan Carlos; Noguera, Efraín

    2012-03-01

    Few individuals have access to mental health services due in part to underdetection. As it is more likely to consult for medical conditions, primary care may be a useful gateway for early detection of mental health problems. Detection of the frequency of mental health problems in four hospital services at the Fundación Santa Fe de Bogotá: Outpatient unit, hospitalization, emergency department, and primary care through a brief detection questionnaire, the Patient Health Questionnaire (PHQ). Cross-sectional study of patients seen at the four services who answered a Demographic Data Questionnaire and the PHQ together with information gathered about current medical diagnosis, history of visits, and hospitalizations during the last year. 1094 patients seen at the four hospital services between September 2010 and May 2011 were selected at random. A mental health problem was detected in 36.7% of the total sample. Major depressive disorder (7.3%), alcohol abuse (14.4%), and any anxiety disorder (7.7%) showed the highest prevalence with the emergency department showing the highest frequency of detection. The usefulness of a brief detection questionnaire such as the PHQ in hospital settings is demonstrated and implications in the design of mental health programs in the general hospital are discussed. The need to replicate this study in other settings and to undertake further research is outlined. Copyright © 2012 Asociación Colombiana de Psiquiatría. Publicado por Elsevier España. All rights reserved.

  11. Development and Validation of the Bicultural Youth Acculturation Questionnaire

    Science.gov (United States)

    Kukaswadia, Atif; Janssen, Ian; Pickett, William; Bajwa, Jasmine; Georgiades, Katholiki; Lalonde, Richard N.; Quon, Elizabeth C.; Safdar, Saba; Pike, Ian

    2016-01-01

    Objectives Acculturation is a multidimensional process involving changes in behaviour and beliefs. Questionnaires developed to measure acculturation are typically designed for specific ethnic populations and adult experiences. This study developed a questionnaire that measures acculturation among ethnically diverse populations of youth that can be included as a module in population surveys. Methods Questionnaires measuring acculturation in youth were identified in the literature. The importance of items from the existing questionnaires was determined using a Delphi process and this informed the development of our questionnaire. The questionnaire was then pilot tested using a sample of 248 Canadians aged 18–25 via an online system. Participants identified as East and South East Asian (27.8%), South Asian (17.7%) and Black (13.7%). The majority were 1st (33.5%) or 2nd generation immigrants (52.0%). After redundant items were eliminated, exploratory factor analysis grouped items into domains, and, for each domain, internal consistency, and convergent validity with immigrant generation then age at immigration estimated. A subset of participants re-completed the questionnaire for reliability estimation. Results The literature review yielded 117 articles that used 13 questionnaires with a total of 440 questions. The Delphi process reduced these to 32 questions. Pilot testing occurred in 248 Canadians aged 18–25. Following item reduction, 16 questions in three domains remained: dominant culture, heritage language, and heritage culture. All had good internal consistency (Cronbach’s alphas > .75). The mean dominant domain score increased with immigrant generation (1st generation: 3.69 (95% CI: 3.49–3.89), 2nd: 4.13 (4.00–4.26), 3rd: 4.40 (4.19–4.61)), and mean heritage language score was higher among those who immigrated after age 12 than before (p = .0001), indicative of convergent validity. Conclusions This Bicultural Youth Acculturation Questionnaire has

  12. Examining the ecological validity of the Talent Development Environment Questionnaire.

    Science.gov (United States)

    Martindale, Russell J J; Collins, Dave; Douglas, Carl; Whike, Ally

    2013-01-01

    It is clear that high class expertise and effective practice exists within many talent development environments across the world. However, there is also a general consensus that widespread evidence-based policy and practice is lacking. As such, it is crucial to develop solutions which can facilitate effective dissemination of knowledge and promotion of evidence-based talent development systems. While the Talent Development Environment Questionnaire (Martindale et al., 2010 ) provides a method through which this could be facilitated, its ecological validity has remained untested. As such, this study aimed to investigate the real world applicability of the questionnaire through discriminant function analysis. Athletes across ten distinct regional squads and academies were identified and separated into two broad levels, 'higher quality' (n = 48) and 'lower quality' (n = 51) environments, based on their process quality and productivity. Results revealed that the Talent Development Environment Questionnaire was able to discriminate with 77.8% accuracy. Furthermore, in addition to the questionnaire as a whole, two individual features, 'quality preparation' (P < 0.01) and 'understanding the athlete' (P < 0.01), were found to be significant discriminators. In conclusion, the results indicate robust structural properties and sound ecological validity, allowing the questionnaire to be used with more confidence in applied and research settings.

  13. MODELING OF ENTERPRISE STATUS ON BASIS OF QUESTIONNAIRE RESULTS

    Directory of Open Access Journals (Sweden)

    N. Busniuk

    2012-01-01

    Full Text Available The paper considers two approaches for an evaluation of a current society status considered which can be represented by an enterprise, a region, a social group etc. The evaluation has been carried out on the basis of questionnaire. The questionnaire contains a list of factors, and a respondent makes marks which reflect his/her personal opinion pertaining to rate influence of every factor on the current situation. While applying methods of a fuzzy-set theory the respondent’s opinion (questionnaire content has been transformed in numerical value Z which serves for determination of the current status rate (an investigated problem rating in the society.The first approach. All the factors are equivalent and N respondents are involved in questionnaire campaign. (The respondents can be represented by enterprise personnel, inhabitants of a territory, representatives of social group etc.The second approach. The factors are inadequate, the questionnaire data is entered by an expert (one respondent. 

  14. The validity of the Nordic patient safety culture questionnaire (TUKU).

    Science.gov (United States)

    Reiman, Teemu; Silla, Inmaculada; Pietikäinen, Elina

    2013-01-01

    Patient safety culture (PSC) has been postulated to have a significant influence on the quality of health care. This study aims to evaluate the psychometric properties of the TUKU PSC questionnaire. The questionnaire development was based on the view that patient safety constitutes not only the absence of adverse events, but also the presence of certain organizational attributes that enable safety. The TUKU questionnaire has two parts: a measure of psychological dimensions, and a measure of employees' perceptions of organizational functions. The TUKU questionnaire was validated using a sample of 1162 health care professionals from seven Finnish health care organizations. Two studies were carried out, one focusing on construct validity and the other on criterion validity. Regarding construct validity, the empirical model matched the theory quite well. The results of Study 2 concerning criterion validity were more ambiguous. Four of the organizational dimensions and two of the psychological dimensions were related to patient safety incidents occurring 16 months after administering the questionnaire. The study provided evidence on the key organizational dimensions that comprise patient safety culture and affect patient safety. The study further contributed towards validation of an instrument for measuring these dimensions.

  15. Questionnaire for low back pain in the garment industry workers.

    Science.gov (United States)

    Bindra, Supreet; Sinha, A G K; Benjamin, A I

    2013-05-01

    Low back pain affects up to 90% of the world's population at some point in their lives. Until date no questionnaire has been designed for back pain in the garment industry workers. Therefore, the objective of this study is to design a questionnaire to determine the prevalence, risk factors, impact, health care service utilization and back pain features in the garment industry workers and gain preliminary experience of its use. The content validity and reliability of the questionnaire was established. Items showing acceptable internal consistency and moderate to high test re-test reliability were retained in the questionnaire. Items showing unacceptable internal consistency, low test re-test reliability or poor differentiation were reworded, redrafted and re-tested on the workers. It took 20 min to complete one interview schedule. Environmental factors such as the absence of the garment industry owner/supervisor or co-workers at the time of the interview and interview during leisure hours need to be standardized. Thus, final questionnaire is ready for use after necessary amendments and will be used on the larger sample size in the main study.

  16. Questionnaire for low back pain in the garment industry workers

    Directory of Open Access Journals (Sweden)

    Supreet Bindra

    2013-01-01

    Full Text Available Low back pain affects up to 90% of the world′s population at some point in their lives. Until date no questionnaire has been designed for back pain in the garment industry workers. Therefore, the objective of this study is to design a questionnaire to determine the prevalence, risk factors, impact, health care service utilization and back pain features in the garment industry workers and gain preliminary experience of its use. The content validity and reliability of the questionnaire was established. Items showing acceptable internal consistency and moderate to high test re-test reliability were retained in the questionnaire. Items showing unacceptable internal consistency, low test re-test reliability or poor differentiation were reworded, redrafted and re-tested on the workers. It took 20 min to complete one interview schedule. Environmental factors such as the absence of the garment industry owner/supervisor or co-workers at the time of the interview and interview during leisure hours need to be standardized. Thus, final questionnaire is ready for use after necessary amendments and will be used on the larger sample size in the main study.

  17. Are web-based questionnaires accepted in patients attending rehabilitation?

    Science.gov (United States)

    Engan, Harald K; Hilmarsen, Christina; Sittlinger, Sverre; Sandmæl, Jon Arne; Skanke, Frode; Oldervoll, Line M

    2016-12-01

    The aim of the present paper was to study preferences for web based self-administered questionnaires (web SAQs) vs. paper-based self-administered questionnaires (paper SAQs) and to evaluate the feasibility of using web SAQs in patients referred to cardiac, lung, occupational and cancer rehabilitation programs. The patients were approached by mail and given the choice to answer the compulsory SAQs either on paper or on a web-based platform. Hundred and twenty seven out of 183 eligible patients (69.3%) were willing to participate and 126 completed the study. Web SAQs were preferred by 77.7%, and these patients were significantly younger, more often cohabiting and tended to have higher level of education than paper SAQ users. Mean number of data missing per patient was less among the web SAQ users than the paper SAQ users (0.55 vs. 2.15, p questionnaires on internet platforms when internet access is common and available. Implications for Rehabilitation The high acceptability of web-based self-administered questionnaires among rehabilitation patients suggests that internet platforms are suitable tools to collect patient information for rehabilitation units. Web-based modes of patient data collection demonstrate low number of missing data and can therefore improve the quality of data collection from rehabilitation patients. Use of web-based questionnaires considerably reduces administrative costs of data collection in rehabilitation settings compared to traditional pen and paper methods.

  18. International recognition of the Chronic Otitis Media Questionnaire 12.

    Science.gov (United States)

    Kosyakov, S I; Minavnina, J V; Phillips, J S; Yung, M W

    2017-06-01

    The Chronic Otitis Media Questionnaire 12 was developed initially in the UK to assess patient-reported health-related quality of life associated with chronic otitis media. This study aimed to determine whether this tool is applicable to the Russian population, which has a materially different healthcare system. A total of 108 patients with different forms of chronic otitis media completed the Russian Chronic Otitis Media Questionnaire 12. The average Russian Chronic Otitis Media Questionnaire 12 score was 19.4 (standard deviation = 8.3). The internal consistency of the Russian Chronic Otitis Media Questionnaire 12 was high, with a Cronbach's alpha value of 0.860. The Russian version of the Chronic Otitis Media Questionnaire 12 was found to be a reliable tool for the assessment of health-related quality of life in patients with chronic otitis media. This sets the scene for international collaboration, using this tool to assess the effectiveness of surgical treatments even amongst countries with different healthcare systems.

  19. American Society of Nephrology Quiz and Questionnaire 2013: transplantation.

    Science.gov (United States)

    Josephson, Michelle A; Perazella, Mark A; Choi, Michael J

    2014-07-01

    The nephrology quiz and questionnaire remains an extremely popular session for attendees of the Annual Meeting of the American Society of Nephrology. As in past years, the conference hall was overflowing with interested audience members. Topics covered by expert discussants included electrolyte and acid-base disorders, glomerular disease, ESRD/dialysis, and transplantation. Complex cases representing each of these categories along with single best answer questions were prepared by a panel of experts. Before the meeting, program directors of United States nephrology training programs answered questions through an Internet-based questionnaire. A new addition to the nephrology quiz and questionnaire was participation in the questionnaire by nephrology fellows. To review the process, members of the audience test their knowledge and judgment on a series of case-oriented questions prepared and discussed by experts. Their answers are compared in real time using audience response devices with the answers of nephrology fellows and training program directors. The correct and incorrect answers are then briefly discussed after the audience responds, and the results of the questionnaire are displayed. This article recapitulates the session and reproduces its educational value for the readers of CJASN. Enjoy the clinical cases and expert discussions.

  20. Pain questionnaire development focusing on cross-cultural equivalence to the original questionnaire: the Japanese version of the Short-Form McGill Pain Questionnaire.

    Science.gov (United States)

    Arimura, Tatsuyuki; Hosoi, Masako; Tsukiyama, Yoshihiro; Yoshida, Toshiyuki; Fujiwara, Daiki; Tanaka, Masanori; Tamura, Ryuichi; Nakashima, Yasunori; Sudo, Nobuyuki; Kubo, Chiharu

    2012-04-01

    The present study aimed to develop a Japanese version of the Short-Form McGill Pain Questionnaire (SF-MPQ-J) that focuses on cross-culturally equivalence to the original English version and to test its reliability and validity. Cross-sectional design. In study 1, SF-MPQ was translated and adapted into Japanese. It included construction of response scales equivalent to the original using a variation of the Thurstone method of equal-appearing intervals. A total of 147 undergraduate students and 44 pain patients participated in the development of the Japanese response scales. To measure the equivalence of pain descriptors, 62 pain patients in four diagnostic groups were asked to choose pain descriptors that described their pain. In study 2, chronic pain patients (N=126) completed the SF-MPQ-J, the Long-Form McGill Pain Questionnaire Japanese version (LF-MPQ-J), and the 11-point numerical rating scale of pain intensity. Correlation analysis examined the construct validity of the SF-MPQ-J. The results from study 1 were used to develop SF-MPQ-J, which is linguistically equivalent to the original questionnaire. Response scales from SF-MPQ-J represented the original scale values. All pain descriptors, except one, were used by >33% in at least one of the four diagnostic groups. Study 2 exhibited adequate internal consistency and test-retest reliability, with the construct validity of SF-MPQ-J comparable to the original. These findings suggested that SF-MPQ-J is reliable, valid, and cross-culturally equivalent to the original questionnaire. Researchers might consider using this scale in multicenter, multi-ethnical trials or cross-cultural studies that include Japanese-speaking patients. Wiley Periodicals, Inc.

  1. Frequency of childhood abuse in university students

    Directory of Open Access Journals (Sweden)

    Cem Zeren

    2012-12-01

    Full Text Available Objectives: Child abuse or bad behaviors against childrenis a social, medical problem and is old as the historyof humanity. The analysis of the frequency of childhoodabuse in university students and the comparison of thefactors related with abuse were aimed in this study.Materials and methods: A questionnaire of social anddemographic features and Childhood Trauma Questionnairewhich is valid and reliable in Turkey were used inthis study.Results: The questionnaires were performed to 150students and 60 % of them were female. The mean agewas 19.04±1.28 (17-26 years. The emotional (p=0.025,physical (p=0.004 and sexual (p=0.001 abuse of malestudents were significantly higher than female students.The emotional (p=0.009 and total (p=0.026 abuse ofstudents who had families with lower income levels weresignificantly high. Also the frequency of emotional abusein students with divorced parents was significantly increased(p=0.012.Conclusions: Since child abuse and neglect may beassociated with the stresses of family life, the economicand social stresses of family should be determined andsolution advices to these should be developed. A multidisciplinarymanagement is required to detect, treat andrehabilitate the childhood abuse.Key words: Childhood, university student, sexual abuse

  2. ACADEMIC TRAINING LECTURES-QUESTIONNAIRE: SUGGEST AND WIN!

    CERN Multimedia

    Françoise Benz

    2002-01-01

    Its time to plan for the 2002-2003 lecture series. From today until April 26 you have the chance to give your contribution to improved planning for next year's Academic Training Lectures Series. At the web site, you will find questionnaires concerning the following different categories: high energy physics, applied physics, science and society and post-graduate student lectures. Answering the questionnaire will help ensure that the selected topics are as close as possible to your interests. In particular requests and comments from students will be much appreciated. To encourage your contribution, the AT Committee is offering 10 prizes of a self-teach web based training course to people who provide their email address when filling in the questionnaire. The 10 winners will be chosen randomly from the replies received before the closing date.

  3. 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.

  4. Questionnaire of quality of life in patients with primary hyperhidrosis

    Directory of Open Access Journals (Sweden)

    Campos José Ribas Milanez de

    2003-01-01

    Full Text Available BACKGROUND: Hyperhidrosis or excessive sudoresis is a chronic disease associated with important subjective distress. OBJECTIVE: To propose a specific questionnaire to evaluate the quality of life of patients with hyperhidrosis. METHODS: From October 1995 to March 2002, 378 patients (234 females, with a mean age of 26.8 years, were evaluated before and after video-assisted thoracic sympathectomy. RESULTS: Therapeutic success was obtained in 90% of the procedures. The recurrence rate was 10% for palmar and 11% for axillary hyperhidrosis; 27% of the patients who had recurrence were re-operated successfully. No serious complications were reported. Of the total number of patients, 91% answered to the quality of life questionnaire, and 86% of them reported improvement after the procedure. CONCLUSIONS: Thoracic sympathectomy is a therapeutic method capable of changing the quality of life of patients with hyperhidrosis. The questionnaire applied has shown these changes.

  5. Elaboration and validation of an assistive technology assessment questionnaire

    Directory of Open Access Journals (Sweden)

    Fernanda Jorge Guimarães

    2015-06-01

    Full Text Available Assistive Technologies consists of resources, methods, and strategies favoring autonomy and inclusion of elderly and people with disabilities, being scarce in the literature instruments assessing them. A methodology study conducted with a panel of specialists and people with visual impairment, aimed to elaborate and validate a questionnaire to assess educational assistive technology. To consider an item as valid, we used 80% as agreement percentage, and validity and reliability of the questionnaire were calculated. Assistive Technology was characterized in six attributes: objectives, access, clarity, structure and presentation, relevance and efficacy, interactivity, and 19 items were elaborated to compose the questionnaire. From those, 11 obtained percentages higher than 80%, seven were modified and one was excluded. The instrument Cronbach’s alpha was 0,822, guaranteeing validity and reliability of the tool to assess health education Assistive Technology, and therefore, its use is indicated.

  6. ACADEMIC TRAINING LECTURES-QUESTIONNAIRE: SUGGEST AND WIN !

    CERN Multimedia

    2003-01-01

    Its time to plan for the 2003-2004 lecture series. From today until April 25 you have the chance to give your contribution to planning for next year's Academic Training Lectures Series. At the web site : http://cern.ch/Academic.Training/questionnaire you will find questionnaires proposing topics in high energy physics, applied physics and science and society. Answering the questionnaire will help ensure that the selected topics are as close as possible to your interests. In particular requests and comments from students will be much appreciated. To encourage your contribution, the AT Committee will reward one lucky winner with a small prize, a 50 CHF coupon for a book purchase at the CERN bookshop.

  7. ACADEMIC TRAINING LECTURES-QUESTIONNAIRE: SUGGEST AND WIN!

    CERN Multimedia

    2003-01-01

    Its time to plan for the 2003-2004 lecture series. From today until April 25 you have the chance to give your contribution to planning for next year's Academic Training Lectures Series. At the web site : http://cern.ch/Academic.Training/questionnaire you will find questionnaires proposing topics in high energy physics, applied physics and science and society. Answering the questionnaire will help ensure that the selected topics are as close as possible to your interests. In particular requests and comments from students will be much appreciated. To encourage your contribution, the AT Committee will reward one lucky winner with a small prize, a 50 CHF coupon for a book purchase at the CERN bookshop.

  8. Validation of new psychosocial factors questionnaires: a Colombian national study.

    Science.gov (United States)

    Villalobos, Gloria H; Vargas, Angélica M; Rondón, Martin A; Felknor, Sarah A

    2013-01-01

    The study of workers' health problems possibly associated with stressful conditions requires valid and reliable tools for monitoring risk factors. The present study validates two questionnaires to assess psychosocial risk factors for stress-related illnesses within a sample of Colombian workers. The validation process was based on a representative sample survey of 2,360 Colombian employees, aged 18-70 years. Worker response rate was 90%; 46% of the responders were women. Internal consistency was calculated, construct validity was tested with factor analysis and concurrent validity was tested with Spearman correlations. The questionnaires demonstrated adequate reliability (0.88-0.95). Factor analysis confirmed the dimensions proposed in the measurement model. Concurrent validity resulted in significant correlations with stress and health symptoms. "Work and Non-work Psychosocial Factors Questionnaires" were found to be valid and reliable for the assessment of workers' psychosocial factors, and they provide information for research and intervention. Copyright © 2012 Wiley Periodicals, Inc.

  9. Knowledge Elecitation for Factors Affecting Taskforce Productivity using a Questionnaire

    CERN Document Server

    Sohail, Muhammad

    2009-01-01

    In this paper we present the process of Knowledge Elicitation through a structured questionnaire technique. This is an effort to depict a problem domain as Investigation of factors affecting taskforce productivity. The problem has to be solved using the expert system technology. This problem is the very first step how to acquire knowledge from the domain experts. Knowledge Elicitation is one of the difficult tasks in knowledge base formation which is a key component of expert system. The questionnaire was distributed among 105 different domain experts of Public and Private Organizations (i.e. Education Institutions, Industries and Research etc) in Pakistan. A total 61 responses from these experts were received. All the experts were well qualified, highly experienced and has been remained the members for selection committees a number of times for different posts. Facts acquired were analyzed from which knowledge was extracted and elicited. A standard shape was given to the questionnaire for further research as...

  10. Term frequency inverse document frequency (TF-IDF) technique and ...

    African Journals Online (AJOL)

    Term frequency inverse document frequency (TF-IDF) technique and artificial neural ... AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... Electronic mail contents are extracted and Term Frequency Inverse ...

  11. Validation of the Reflux Disease Questionnaire into Greek

    Directory of Open Access Journals (Sweden)

    Eirini Oikonomidou

    2012-09-01

    Full Text Available Primary care physicians face challenges in diagnosing and managing gastroesophageal reflux disease (GERD. The Reflux Disease Questionnaire (RDQ meets the standards of validity, reliability, and practicability. This paper reports on the validation of the Greek translation of the RDQ. RDQ is a condition specific instrument. For the validation of the questionnaire, the internal consistency of its items was established using the alpha coefficient of Chronbach. The reproducibility (test-retest reliability was measured by kappa correlation coefficient and the criterion of validity was calculated against the diagnosis of another questionnaire already translated and validated into Greek (IDGP using kappa correlation coefficient. A factor analysis was also performed. Greek RDQ showed a high overall internal consistency (alpha value: 0.91 for individual comparison. All 8 items regarding heartburn and regurgitation, GERD, had good reproducibility (Cohen’s κ 0.60-0.79, while the remaining 4 items about dyspepsia had a moderate reproducibility (Cohen’s κ=’ 0.40-0.59 The kappa coefficient for criterion validity for GERD was rather poor (0.20, 95% CI: 0.04, 0.36 and the overall agreement between the results of the RDQ questionnaire and those based on the IDGP questionnaire was 70.5%. Factor analysis indicated 3 factors with Eigenvalue over 1.0, and responsible for 76.91% of variance. Regurgitation items correlated more strongly with the third component but pain behind sternum and upper stomach pain correlated with the second component. The Greek version of RDQ seems to be a reliable and valid instrument following the pattern of the original questionnaire, and could be used in primary care research in Greece.

  12. The Questionnaire of Personality Disorders (VMO: Construction and preleminary research

    Directory of Open Access Journals (Sweden)

    Emil Benedik

    2004-09-01

    Full Text Available The article describes the development of the self-report Questionnaire of Personality Disorders (VMO, which was constructed on the basis of DSM-IV classification for personality disorders(American Psychiatric Association, 1994, Beck's theory of dysfunctional cognitive schemas (Beck in Freeman, 1990 and psychoanalytic theories of basic personality structures. We focused on the basic experiencing of self and others, which is characteristic of specific personality type. In regard to these theories we believe that personality disorder is a broader term; the disorders within it are not limited to existing DSM-IV axis II categories. The personality disorders are complex phenomenon, which are better described on dimensional then categorical scales as well. The questionnaire consists of 213 items, which correspond to 12 clinical scales (for histrionic, obsessive-compulsive, passive-aggressive, avoidant, dependent, depressive, narcissistic, borderline, antisocial, paranoid, schizoid and schizotypal personality disorders and a lie scale. According to the personality organization theory (Kernberg, 1986 and other psychoanalytic theories it is divided into four parts: for neurotic (histrionic, obsessive-compulsive, passive-aggressive and avoidant disorders, depressive (dependent and depressive disorders, borderline (narcissistic, borderline and antisocial disorders and psychotic disorders (paranoid, schizoid and schizotypal disorders. The questionnaire was administered to 415 adult psychiatric patients and 215 health persons of both sexes. They were compared according to the responses of the questionnaire. The internal reliability of scales is sufficient, but correlation between scales is quite strong. The validity was tested with the Personality Diagnostic Questionnaire (PDQ-4, Hyler, 1994 and through comparing of the results of healthy individuals and psychiatric patients with different diagnosis. The results are generally in accordance with the

  13. Validation and refinement of the Questionnaire for Lung Transplant Patients.

    Science.gov (United States)

    De Vito Dabbs, Annette; Kim, Yookyung; Vensak, Judith; Studer, Sean; Iacono, Aldo

    2004-12-01

    The Questionnaire for Lung Transplant Patients was designed to assess symptoms and activity tolerance in lung transplant recipients during their post-transplant evaluations. The initial psychometric evaluation determined that the questionnaire was clinically useful, reliable, and valid. To report the results of further psychometric analyses in a new, expanded sample of lung transplant recipients and to demonstrate the iterative manner by which instruments are refined and tested. Internal consistency, test-retest stability, convergent validity, factorial validity, and group differences attributable to age, gender, and transplant type were determined in a pooled sample of 177 lung transplant recipients. Sensitivity to change over time was measured in a subsample (n = 51) who provided repeated measures data. The Questionnaire for Lung Transplant Patients and its subscales were internally consistent (Kuder Richardson reliability of 0.73-0.95). Test-retest stability was high (intraclass correlations >0.70). Symptoms showed a significant curvilinear pattern with a tendency to decrease over time before rising again at the 12-month measurement for the total questionnaire (F=6.8, P=.012) and 2 subscales--Respiratory (F=5.6, P=.022) and Activities of Daily Living (F=19.7, PGeneral, and Activities of Daily Living subscales. The Questionnaire for Lung Transplant Patients is a reliable and valid measure for assessing physical symptoms and activity intolerance after lung transplantation in individual recipients, recipients in aggregate, and comparison groups, on one occasion and serially over time. These results will guide future refinement and testing of the Questionnaire for Lung Transplant Patients.

  14. Validation of a questionnaire measuring the regulation of autonomic function

    Directory of Open Access Journals (Sweden)

    Matthes H

    2008-06-01

    Full Text Available Abstract Background To broaden the range of outcomes that we can measure for patients undergoing treatment for oncological and other chronic conditions, we aimed to validate a questionnaire measuring self-reported autonomic regulation (aR, i.e. to characterise a subject's autonomic functioning by questions on sleeping and waking, vertigo, morningness-eveningness, thermoregulation, perspiration, bowel movements and digestion. Methods We administered the questionnaire to 440 participants (♀: N = 316, ♂: N = 124: 95 patients with breast cancer, 49 with colorectal cancer, 60 with diabetes mellitus, 39 with coronary heart disease, 28 with rheumatological conditions, 32 with Hashimoto's disease, 22 with multiple morbidities and 115 healthy people. We administered the questionnaire a second time to 50.2% of the participants. External convergence criteria included the German version of the Hospital Anxiety and Depression Scale (HADS-D, a short questionnaire on morningness-eveningness, the Herdecke Quality of Life Questionnaire (HLQ and a short version questionnaire on self-regulation. Results A principal component analysis yielded a three dimensional 18-item inventory of aR. The subscales orthostatic-circulatory, rest/activity and digestive regulation had internal consistency (Cronbach-α: rα = 0.65 – 0.75 and test-retest reliability (rrt = 0.70 – 85. AR was negatively associated with anxiety, depression, and dysmenorrhoea but positively correlated to HLQ, self-regulation and in part to morningness (except digestive aR (0.49 – 0.13, all p Conclusion An internal validation of the long-version scale of aR yielded consistent relationships with health versus illness, quality of life and personality. Further studies are required to clarify the issues of external validity, clinical and physiological relevance.

  15. [Psychometric properties of the Hungarian version of the Codependence Questionnaire].

    Science.gov (United States)

    Nagy, Anikó; Knapek, Éva; Balázs, Katalin; Kuritárné Szabó, Ildikó

    2014-01-01

    The purpose of this study is to assess the internal consistency of the subscales of the Hungarian Version of the Codependent Questionnaire (CdQ, Roehling & Gaumond, 1996). Thus, a reliable measurement of codependency for professionals become available in Hungary. The Hungarian Version of the Codependent Questionnaire enables professionals to identify codependent individuals. Our sample (N=137) was recruited from the general population and from self-help groups (82 individuals); and patients with borderline personality disorder (55 individuals) were recruited as clinical control group. The reliability of the questionnaire was assessed by Cronbach's alfa and principal component analysis. In addition, in order to investigate the latent structure, factors analyses and hierarchical cluster analysis were used. Based on our results, the Cronbach's alfa values of the subscales of 'control', 'reliability' and 'intimacy' indicate appropriate reliability, however, the subscale of 'enmeshment' indicates poor reliability. The originally assumed factor structure is not supported by the results of the statistical analyses. The subscales are not separate from each other, which is also indicated by the correlations of the total scores of the subscales. The reliability of the Hungarian Version of the Codependent Questionnaire is nearly identical to the original data, except for one subscale ('enmeshment subscale'). Based on these results the Hungarian Version of the Codependent Questionnaire is considered to be reliable. Besides the Hungarian adaptation, the strength of this study is the investigation of a clinical sample. The use of the questionnaire is recommended without the subscale of 'enmeshment' and further 5 items, and it is suggested to use as one scale.

  16. Clinical trial participants' experiences of completing questionnaires: a qualitative study.

    Science.gov (United States)

    Holmberg, Christine; Karner, Julia J; Rappenecker, Julia; Witt, Claudia M

    2014-03-24

    To improve clinical study developments for elderly populations, we aim to understand how they transfer their experiences into validated, standardised self-completed study measurement instruments. We analysed how women (mean 78±8 years of age) participating in a randomised controlled trial (RCT) cognised study instruments used to evaluate outcomes of the intervention. The interview study was nested in an RCT on chronic neck pain using common measurement instruments situated in an elderly community in Berlin, Germany, which comprised of units for independent and assisted-living options. The sample (n=20 women) was selected from the RCT sample (n=117, 95% women, mean age 76 (SD±8) years). Interview participants were selected using a purposive sampling list based on the RCT outcomes. We asked participants about their experiences completing the RCT questionnaires. Interviews were analysed thematically, then compared with the questionnaires. Interviewees had difficulties in translating complex experiences into a single value on a scale and understanding the relationship of the questionnaires to study aims. Interviewees considered important for the trial that their actual experiences were understood by trial organisers. This information was not transferrable by means of the questionnaires. To rectify these difficulties, interviewees used strategies such as adding notes, adding response categories or skipping an item. Elderly interview participants understood the importance of completing questionnaires for trial success. This led to strategies of completing the questionnaires that resulted in 'missing' or ambiguous data. To improve data collection in elderly populations, educational materials addressing the differential logics should be developed and tested. Pilot testing validated instruments using cognitive interviews may be particularly important in such populations. Finally, when the target of an intervention is a subjective experience, it seems important to create a

  17. Clinical trial participants’ experiences of completing questionnaires: a qualitative study

    Science.gov (United States)

    Holmberg, Christine; Karner, Julia J; Rappenecker, Julia; Witt, Claudia M

    2014-01-01

    Objectives To improve clinical study developments for elderly populations, we aim to understand how they transfer their experiences into validated, standardised self-completed study measurement instruments. We analysed how women (mean 78±8 years of age) participating in a randomised controlled trial (RCT) cognised study instruments used to evaluate outcomes of the intervention. Setting The interview study was nested in an RCT on chronic neck pain using common measurement instruments situated in an elderly community in Berlin, Germany, which comprised of units for independent and assisted-living options. Participants The sample (n=20 women) was selected from the RCT sample (n=117, 95% women, mean age 76 (SD±8) years). Interview participants were selected using a purposive sampling list based on the RCT outcomes. Outcomes We asked participants about their experiences completing the RCT questionnaires. Interviews were analysed thematically, then compared with the questionnaires. Results Interviewees had difficulties in translating complex experiences into a single value on a scale and understanding the relationship of the questionnaires to study aims. Interviewees considered important for the trial that their actual experiences were understood by trial organisers. This information was not transferrable by means of the questionnaires. To rectify these difficulties, interviewees used strategies such as adding notes, adding response categories or skipping an item. Conclusions Elderly interview participants understood the importance of completing questionnaires for trial success. This led to strategies of completing the questionnaires that resulted in ‘missing’ or ambiguous data. To improve data collection in elderly populations, educational materials addressing the differential logics should be developed and tested. Pilot testing validated instruments using cognitive interviews may be particularly important in such populations. Finally, when the target of an

  18. Validation and application of a subjective knee questionnaire.

    Science.gov (United States)

    Höher, J; Münster, A; Klein, J; Eypasch, E; Tiling, T

    1995-01-01

    Patients' complaints on limitations in activities of daily living (ADL) and sports are possible signs for various injuries of the knee joint. These complaints can be easily assessed by the patient using a questionnaire with visual analogue scale (VAS) responses. A German translation of the English questionnaire concerning knee complaints [4] has been validated and tested for clinical use. It consists of 28 questions. For the statistical analysis, an overall score (VAS score) of the questionnaire was determined. The validation included an expert evaluation on the content of the questionnaire, a test for the reliability, a comparison with subjective knee scoring systems (Cincinnati score, Lysholm score) and a test on VAS score results in patient groups with various knee injuries (discrimination of patients). For the evaluation of operative treatment results, the responsiveness of the questionnaire was tested in patients undergoing arthroscopic meniscus surgery and anterior cruciate ligament reconstruction. The investigation was conducted prior to the operation, 2, 6, 12 and 24 weeks after surgery for both groups and also 36 weeks after surgery for the cruciate ligament patients. Interviews conducted with knee surgeons (so-called knee experts) revealed that 85% judged the questionnaire as being acceptable for clinical use. The reliability of the VAS score for healthy individuals was r = 0.86. The reliability for patients in a postoperative rehabilitation programme was r = 0.92. By means of the VAS score we were able to assess the extent of limitations in knee function in various patient groups with meniscus lesions, insufficiency ot the anterior and posterior cruciate ligaments and chondromalacia.(ABSTRACT TRUNCATED AT 250 WORDS)

  19. Validation of Iranian Version of Pregnancy Related Anxiety Questionnaire

    Science.gov (United States)

    Askarizadeh, Ghasem; Karamoozian, Mahsa; Darekordi, Ali

    2017-01-01

    Background: Pregnancy is an acute period in the lifetime of women, during which numerous excitatory physical and social changes occur. The purpose of this study is confirmatory factor analysis of Pregnancy Related Anxiety Questionnaire (PRAQ) that is designed in Iranian pregnant women population. Methods: A total of 170 pregnant women in health centers of Kerman city were chosen through random sampling method and completed PRAQ questionnaire and Beck Anxiety Inventory (BAI). In this study, confirmatory factor analysis and concurrent validity are used to evaluate the validity of models; and to test-retest and Cronbach alpha were used for evaluating external and internal reliability in SPSS-19 and the AMOS software to evaluate reliability of models. Results: Confirmatory factor analysis gave an acceptable value for the latent PRAQ in the question scale and 5 micro-scale level. Furthermore, significant correlation between the components and the overall scale of the PRAQ questionnaire with the BAI confirmed concurrent validity of questionnaire. The reliability of questionnaire is confirmed based on Cronbach's alpha coefficient value of 0.78 that calculated 0.69–0.76 for the five-factors. A month later, reliability coefficient amplitude of test-retest on forty pregnant women was between 0.65 and 0.72 which shows the reliability of PRAQ over time. Conclusions: The short form of anxiety during pregnancy questionnaire has the essential psychometric properties. In this study, five-factors extracted in the PRAQ were adapted with the factors extracted from the original version. This study introduces an instrument that can be benefit in measuring anxiety and concerns of women during pregnancy.

  20. Frequency Standards and Metrology

    Science.gov (United States)

    Maleki, Lute

    2009-04-01

    Preface / Lute Maleki -- Symposium history / Jacques Vanier -- Symposium photos -- pt. I. Fundamental physics. Variation of fundamental constants from the big bang to atomic clocks: theory and observations (Invited) / V. V. Flambaum and J. C. Berengut. Alpha-dot or not: comparison of two single atom optical clocks (Invited) / T. Rosenband ... [et al.]. Variation of the fine-structure constant and laser cooling of atomic dysprosium (Invited) / N. A. Leefer ... [et al.]. Measurement of short range forces using cold atoms (Invited) / F. Pereira Dos Santos ... [et al.]. Atom interferometry experiments in fundamental physics (Invited) / S. W. Chiow ... [et al.]. Space science applications of frequency standards and metrology (Invited) / M. Tinto -- pt. II. Frequency & metrology. Quantum metrology with lattice-confined ultracold Sr atoms (Invited) / A. D. Ludlow ... [et al.]. LNE-SYRTE clock ensemble: new [symbol]Rb hyperfine frequency measurement - spectroscopy of [symbol]Hg optical clock transition (Invited) / M. Petersen ... [et al.]. Precise measurements of S-wave scattering phase shifts with a juggling atomic clock (Invited) / S. Gensemer ... [et al.]. Absolute frequency measurement of the [symbol] clock transition (Invited) / M. Chwalla ... [et al.]. The semiclassical stochastic-field/atom interaction problem (Invited) / J. Camparo. Phase and frequency noise metrology (Invited) / E. Rubiola ... [et al.]. Optical spectroscopy of atomic hydrogen for an improved determination of the Rydberg constant / J. L. Flowers ... [et al.] -- pt. III. Clock applications in space. Recent progress on the ACES mission (Invited) / L. Cacciapuoti and C. Salomon. The SAGAS mission (Invited) / P. Wolf. Small mercury microwave ion clock for navigation and radioScience (Invited) / J. D. Prestage ... [et al.]. Astro-comb: revolutionizing precision spectroscopy in astrophysics (Invited) / C. E. Kramer ... [et al.]. High frequency very long baseline interferometry: frequency standards and

  1. Voiding patterns in men evaluated by a questionnaire survey

    DEFF Research Database (Denmark)

    Sommer, P; Nielsen, K K; Bauer, T;

    1990-01-01

    A questionnaire on obstructive and irritative voiding symptoms was sent to 572 men aged between 20 and 79 years, selected at random from the National Register; 337 questionnaires were completed. None of the responders had consulted a doctor because of voiding symptoms. There was a significant...... had symptoms equal in severity to those found in men undergoing prostatectomy; 29% and 11% of men in the eighth decade [corrected] had nocturia twice and 3 times or more respectively; 19% complained of urge incontinence. More information on possible treatment is needed....

  2. Validity of the Danish Prostate Symptom Score questionnaire in stroke

    DEFF Research Database (Denmark)

    Tibaek, S.; Dehlendorff, Christian

    2009-01-01

    Objective – To determine the content and face validity of the Danish Prostate Symptom Score (DAN-PSS-1) questionnaire in stroke patients. Materials and methods – Content validity was judged among an expert panel in neuro-urology. The judgement was measured by the content validity index (CVI). Face...... validity was indicated in a clinical sample of 482 stroke patients in a hospital-based, cross-sectional survey. Results – I-CVI was rated >0.78 (range 0.94–1.00) for 75% of symptom and bother items corresponding to adequate content validity. The expert panel rated the entire DAN-PSS-1 questionnaire highly...

  3. Managing missing scores on the Roland Morris Disability Questionnaire

    DEFF Research Database (Denmark)

    Lauridsen, Henrik Hein

    MANAGING MISSING SCORES ON THE ROLAND MORRIS DISABILITY QUESTIONNAIRE Peter Kenta and Henrik Hein Lauridsenb aBack Research Centre and bInstitute of Sports Science and Clinical Biomechanics, University of Southern Denmark Background There is no standard method to calculate Roland Morris Disability......, such as the Oswestry Disability Index (Oswestry) convert their raw score into a standardized score out of 100. An advantage of this method is that it allows missing data to be accommodated by proportional recalculation. For example, if 17 questions had been answered ’yes’ on a RMDQ questionnaire containing 23 yes...

  4. [Danish physicians' attitude to capital punishment. A questionnaire study].

    Science.gov (United States)

    Tulinius, A C; Andersen, P M; Holm, S

    1989-09-01

    The attitudes of the Danish medical profession to capital punishment and participation in the procedure of capital punishment were illustrated by means of a questionnaire investigation. A total of 1,011 questionnaires were sent to a representative section of Danish doctors. Out of the 591 who replied, 474 considered that capital punishment is not an acceptable form of punishment while 76 considered that capital punishment is acceptable. Twenty doctors were willing to participate actively in executions although medical participation of this type has been condemned both by the Nordic Medical Associations and also by the World Medical Association.

  5. Measuring the coolness of interactive products: the COOL questionnaire

    DEFF Research Database (Denmark)

    Bruun, Anders; Raptis, Dimitrios; Kjeldskov, Jesper

    2016-01-01

    characteristics. These were used to create an initial pool of question items and 2236 participants were asked to assess 16 mobile devices. By performing exploratory and confirmatory factor analyses, we identified three factors that can measure the perceived inner coolness of interactive products: desirability...... is the COOL questionnaire. We based the creation of the questionnaire on literature suggesting that perceived coolness is decomposed to outer cool (the style of a product) and inner cool (the personality characteristics assigned to it). In this paper, we focused on inner cool, and we identified 11 inner cool...

  6. Validation of the Humor Style Questionnaire with university students

    OpenAIRE

    Mónica Cassaretto B.; Patricia Martínez U.

    2009-01-01

    This study validates the Humor Style Questionnaire in a group of 315 university students of both genders from Lima, Peru, with an average age of 19,7. The Humor Style Questionnaire (HSQ) by Martin, Puhlik-Doris, Larsen, Gray & Weir (2003), the Psychological Well-Being Scale (BIEPS-A) by Casullo (2002) and the Hope Scale by Herth (1991) were used. After the neutralization of four items, results show reliability coefficients between 0,64 to 0,78 and a factorial structure confirming the exis...

  7. The measurement artifact in the Organizational Commitment Questionnaire.

    Science.gov (United States)

    Caught, K; Shadur, M A; Rodwell, J J

    2000-12-01

    This study empirically examined the debate in the literature regarding the dimensionality of the Organizational Commitment Questionnaire. The sample comprised 803 employees from organizations in the information technology and hospitality industries. Confirmatory factor analysis showed that the Organizational Commitment Questionnaire appears to have a two-factor structure, with one factor consisting of positively worded items and the other factor, negatively worded items. Scores on both factors correlated significantly with job satisfaction, suggesting that both factors appear to be measuring a similar aspect of organizational commitment and that they present as two factors given as measurement artifacts of the item wording.

  8. Managing missing scores on the Roland Morris Disability Questionnaire

    DEFF Research Database (Denmark)

    Lauridsen, Henrik Hein

    MANAGING MISSING SCORES ON THE ROLAND MORRIS DISABILITY QUESTIONNAIRE Peter Kenta and Henrik Hein Lauridsenb aBack Research Centre and bInstitute of Sports Science and Clinical Biomechanics, University of Southern Denmark Background There is no standard method to calculate Roland Morris Disability......, such as the Oswestry Disability Index (Oswestry) convert their raw score into a standardized score out of 100. An advantage of this method is that it allows missing data to be accommodated by proportional recalculation. For example, if 17 questions had been answered ’yes’ on a RMDQ questionnaire containing 23 yes...

  9. Adaptive Vocational Personality Questionnaire Development and Validation of an adaptive personality questionnaire to analyze the vocational behavior of university students

    Directory of Open Access Journals (Sweden)

    Amparo Gómez-Artiga

    2013-05-01

    Full Text Available This study presents a personality evaluation instrument adapted to the vocational setting: the Adaptive Vocational Personality Questionnaire (AVPQ. The questionnaire was developed and tested in a sample of 2160 university students in the final years of their degree programs. The purpose of the study is to validate the questionnaire, providing evidence about its internal structure and its usefulness for predicting scores on a criterion scale. A confirmatory factor analysis combined with a cross-validation design was used: the exploratory sample (n = 879 helped to identify the model with the factorial structure that best fit the relations among the items. As expected, this model had two related but clearly separate factors: Adaptive Personality Characteristics (AC with 9 items and Non-Adaptive Personality Characteristics (NAC with 11 items. The validation sample (n =932 was used to test the generalization capacity of this model, which was satisfactory and showed a good reliability index. Regarding its usefulness in predicting proactive job-search behaviors, the results were also satisfactory. The questionnaire and keys are provided, as well as the criteria for calculating the scores on each scale and on the entire questionnaire.

  10. Single frequency intracavity SRO

    DEFF Research Database (Denmark)

    Abitan, Haim; Buchhave, Preben

    2000-01-01

    Summary form only given. A single resonance optical parametric oscillator (SRO) is inserted intracavity to a CW high power, single frequency, and ring Nd:YVO4 laser. We obtain a stable single frequency CW SRO with output at 1.7-1.9 μm (idler) and a resonating signal at 2.3-2.6 μm. The behavior...... of the two coupled resonators is simulated and the output power from the SRO is described as a function of the diode pumping power supplied to the Nd:YVO4 laser....

  11. Mid-frequency readers

    OpenAIRE

    Nation, Ian Stephen Paul; Anthony, Laurence

    2013-01-01

    This article describes a new free extensive reading resource for learning the mid-frequency words of English and for reading well known texts with minor vocabulary adaptation. A gap exists between the end of graded readers at around 3,000 word families and the vocabulary size needed to read unsimplified texts at around 8,000 word families. Mid-frequency readers are designed to fill this gap. They consist of texts from Project Gutenberg adapted for learners with a vocabulary size of 4,000 word...

  12. Development of the talent development environment questionnaire for sport.

    Science.gov (United States)

    Martindale, Russell J J; Collins, Dave; Wang, John C K; McNeill, Michael; Lee, Kok Sonk; Sproule, John; Westbury, Tony

    2010-09-01

    As sporting challenge at the elite level becomes ever harder, maximizing effectiveness of the talent development pathway is crucial. Reflecting this need, this paper describes the development of the Talent Development Environment Questionnaire, which has been designed to facilitate the development of sporting potential to world-class standard. The questionnaire measures the experiences of developing athletes in relation to empirically identified "key features" of effective talent development environments. The first phase involved the generation of questionnaire items with clear content and face validity. The second phase explored the factor structure and reliability. This was carried out with 590 developing athletes through application of exploratory factor analysis with oblique rotation, principal axis factoring extraction and cronbach alpha tests. This yielded a 59-item, seven-factor structure with good internal consistency (0.616-0.978). The Talent Development Environment Questionnaire appears to be a promising psychometric instrument that can potentially be useful for education and formative review in applied settings, and as a measurement tool in talent development research.

  13. Questionnaire of Executive Function for Dancers: An Ecological Approach

    Science.gov (United States)

    Wong, Alina; Rodriguez, Mabel; Quevedo, Liliana; de Cossio, Lourdes Fernandez; Borges, Ariel; Reyes, Alicia; Corral, Roberto; Blanco, Florentino; Alvarez, Miguel

    2012-01-01

    There is a current debate about the ecological validity of executive function (EF) tests. Consistent with the verisimilitude approach, this research proposes the Ballet Executive Scale (BES), a self-rating questionnaire that assimilates idiosyncratic executive behaviors of classical dance community. The BES was administrated to 149 adolescents,…

  14. Reliability and Validation Study of the Online Instinctual Variant Questionnaire

    Science.gov (United States)

    Andre, Sherry

    2014-01-01

    Leaders often manage both chaos and diversity. We can improve our leadership effectiveness by better understanding our motives and behaviors, and those of our followers. A potential tool for leadership development is the Instinctual Variant Questionnaire (IVQ). Based on Enneagram theory (pronounced "ANY-a-gram"), this online instrument…

  15. The Diagnostic Conference Planning Questionnaire for Speech-Language Pathology.

    Science.gov (United States)

    Houle, Gail Ruppert

    1990-01-01

    The article describes a tool to increase professional effectiveness in supervisory conferencing in speech-language pathology based on the dual areas of role expectations for clinicians and personal needs as derived from Maslow's hierarchy of needs. The conferencing questionnaire aids in recognizing the needs of the supervisee, stating problems,…

  16. Error orientation questionnaire (EOQ): reliability, validity, and different language equivalence

    NARCIS (Netherlands)

    Rybowiak, V.; Garst, H.; Frese, M.; Batinic, B.

    1999-01-01

    An Error Orientation Questionnaire (EOQ) was developed, consisting of eight scales on attitudes to and on coping with errors at work. In Study I (representative sample of a German city, N=478) six scales were developed with the help of a confirmatory factor analysis using LISREL techniques. They com

  17. Development and Validation of an Instructional Willingness to Communicate Questionnaire

    Science.gov (United States)

    Khatib, Mohammad; Nourzadeh, Saeed

    2015-01-01

    The current study was undertaken with the purpose of developing and validating a willingness to communicate (WTC) questionnaire for instructional language teaching and learning contexts. Six instructional WTC (IWTC) components were identified after (1) undertaking a comprehensive review of the literature on second language (L2) WTC and other…

  18. Multicultural Personality Questionnaire : Development of a Short Form

    NARCIS (Netherlands)

    van der Zee, Karen; van Oudenhoven, Jan Pieter; Ponterotto, Joseph G.; Fietzer, Alexander W.

    2013-01-01

    This study reports on the development of the Multicultural Personality QuestionnaireShort Form among 511 participants. Using a split-sample scale validation design, Study 1 (N = 260) employed a principal component analysis and rigorous item selection criteria to extract a 40-item short form (MPQSF)

  19. The cancer empowerment questionnaire: psychological empowerment in breast cancer survivors

    NARCIS (Netherlands)

    Berg, S.W. van den; Amstel, F.K. Ploos van; Ottevanger, P.B.; Gielissen, M.F.M.; Prins, J.B.

    2013-01-01

    New models of cancer care and survivorship ask for empowered patients. But how do we measure that patients can derive strength from themselves (intrapersonal) and their perceived social support (interpersonal)? The 40-item Cancer Empowerment Questionnaire (CEQ) measures psychological empowerment as

  20. Development and validation of the predrinking motives questionnaire

    NARCIS (Netherlands)

    Labhart, F.; Kuntsche, E.N.

    2017-01-01

    Elaborating on instruments for U.S. university students, we developed and validated the predrinking (drinking before going out) motives questionnaire (PMQ) for general populations of young adults. In popular nightlife areas in Switzerland, 316 predrinkers aged 16-25 (48% women) were recruited. Focus

  1. 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...

  2. Understanding Physical Educators' Perceptions of Mattering Questionnaire--Physical Education

    Science.gov (United States)

    Richards, K. Andrew R.; Gaudreault, Karen Lux; Woods, Amelia Mays

    2017-01-01

    Previous research has illustrated that physical educators feel their subject is valued less than others in the context of schools. However, to date, no instruments have been developed to measure physical education teachers' perceptions of mattering. This study sought to propose and validate the Perceived Mattering Questionnaire--Physical Education…

  3. Codification and Validation of Professional Development Questionnaire of Teachers

    Science.gov (United States)

    Ayyoobi, Fatemah; Pourshafei, Hadi; Asgari, Ali

    2016-01-01

    Teacher in the educational system and the teaching-learning process, as a main leading should need to knowledge and professional skills. Therefore, evaluation of professional development is important. This study aims to design and modify Construction and Validation of professional development questionnaire of teachers. This research based on…

  4. The Strengths and Difficulties Questionnaire in the Nordic countries

    DEFF Research Database (Denmark)

    Obel, Carsten; Heiervang, Einar; Rodriguez, Alina;

    2004-01-01

    BACKGROUND: The Strengths and Difficulties Questionnaire (SDQ) has been translated into the different Nordic languages between 1996 and 2003. During the past few years, SDQs have been completed for nearly 100,000 children and adolescents in population-based studies as well as in clinical samples...

  5. Social Support Questionnaire for Children: Development and Initial Validation

    Science.gov (United States)

    Gordon-Hollingsworth, Arlene T.; Thompson, Julia E.; Geary, Meghan A.; Schexnaildre, Mark A.; Lai, Betty S.; Kelley, Mary Lou

    2016-01-01

    The Social Support Questionnaire for Children (SSQC) is a 50-item scale that assesses children's social support from parents, relatives, nonrelative adults, siblings, and peers. The SSQC demonstrates good psychometric properties (e.g., internal consistency, factorial validity). Furthermore, the SSQC appears to be an ethnically sensitive measure of…

  6. 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…

  7. A New Statistic for Variable Selection in Questionnaire Analysis

    Institute of Scientific and Technical Information of China (English)

    ZHANG Jun-hua; FANG Wei-wu

    2001-01-01

    In this paper, a new statistic is proposed for variable selection which is one of the important problems in analysis of questionnaire data. Contrasting to other methods, the approach introduced here can be used not only for two groups of samples but can also be easily generalized to the multi-group case.

  8. Participation in questionnaire studies among couples affected by breast cancer

    DEFF Research Database (Denmark)

    Terp, Helene; Rottmann, Nina; Larsen, Pia Veldt;

    2015-01-01

    OBJECTIVE: Participation bias may be a problem in couple-based psychosocial studies. Therefore, it is important to investigate the characteristics associated with participation. The aim of this study was to analyze whether participation in a longitudinal psychosocial questionnaire study among...

  9. An Educator's Guide to Questionnaire Development. REL 2016-108

    Science.gov (United States)

    Harlacher, Jason

    2016-01-01

    Educators have many decisions to make and it's important that they have the right data to inform those decisions and access to questionnaires that can gather that data. This guide, developed by REL Central and based on work done through separate projects with the Wyoming Office of Public Instruction and the Nebraska Department of Education,…

  10. The development of a design behaviour questionnaire for multidisciplinary teams

    NARCIS (Netherlands)

    Peeters, Miranda A.G.; Tuijl, van Harrie F.J.M.; Reymen, Isabelle M.M.J.; Rutte, Christel G.

    2007-01-01

    The relationship between design behaviours and successful design task completion is studied for multidisciplinary design teams. In this research, no observational methods such as audio–visual recordings or ethnographic fieldwork were used, as often the case in design research, but a questionnaire ta

  11. [Quality of life questionnaire related to nutritional status].

    Science.gov (United States)

    Wanden-Berghe, C; Martín-Rodero, H; Guardiola-Wanden-Berghe, R; Sanz-Valero, J; Galindo-Villardón, P

    2012-01-01

    To build and validate an instrument to measure the perceived quality of life in the nutritional status. By focal groups and interviews with nutrition experts, the dimensions with greater affectation were identified. After the judge test, the CaVEN questionnaire was defined. For its valuation a multicentric study was performed, participating 7 Spanish hospitals. The internal structure of the questionnaire was evaluated by explanatory factorial analysis. Reliability was tested using the Cronbach α coefficient and the validity of the criteria with the nutritional Gold Standards. A questionnaire of 26 items with 6 health dimensions was built. It was applied to 68 patients that were valued in the Nutrition Units. The test KMO was 0.756, showing a good accuracy in the Factorial Analysis. The existence of principal dimension of inertia was found (Bartlett p CaVEN (p CaVEN. The CaVEN questionnaire has proved a useful tool for assessing the quality of life related to nutritional status, even in groups with little nutritional alterations.

  12. Development and Psychometric Properties of the Classroom Peer Context Questionnaire

    NARCIS (Netherlands)

    Boor-Klip, Henrike J.; Segers, Eliane; Hendrickx, Marloes M H G; Cillessen, Antonius H N

    2016-01-01

    Children's view on the peer context in their classroom may differ from that of other informants, but no measure systematically examines children's own view. Therefore, we developed the Classroom Peer Context Questionnaire (CPCQ) and evaluated its reliability, validity, and stability in two studies.

  13. A Rasch Analysis of the Academic Self-Concept Questionnaire

    Science.gov (United States)

    Joyce, Tan Bei Yu; Yates, Shirley M.

    2007-01-01

    This study used the Rasch model to assess the unidimensionality and item-person fit of an Academic Self-Concept Questionnaire (ASCQ) that is based on the Confucian Heritage Culture (CHC) perspective. Knowledge of the relationship between academic achievement and academic self-concept is particularly useful because academic achievement is…

  14. Validation of the Marijuana Effect Expectancy Questionnaire-Brief

    Science.gov (United States)

    Torrealday, O.; Stein, L. A. R.; Barnett, N.; Golembeske, C.; Lebeau, R.; Colby, S. M.; Monti, P. M.

    2008-01-01

    The purpose of this study was to evaluate a brief version of the Marijuana Effect Expectancy Questionnaire (MEEQ; Schafer & Brown, 1991). The original MEEQ was reduced to 6 items (MEEQ-B). Principal component analysis (PCA) was performed and two factors were identified (positive effects and negative effects) accounting for 52.3% of the variance.…

  15. Construction and Initial Validation of the Chinese Reading Motivation Questionnaire

    Science.gov (United States)

    Lau, Kit-Ling

    2004-01-01

    This paper describes the development and initial validation of a Chinese reading motivation questionnaire (CRMQ) which was designed to assess Chinese students' reading motivation in Hong Kong. The development of the CRMQ consisted of two steps. In the first study, groups of items were constructed based on achievement motivation theories and…

  16. Validation of a stroke symptom questionnaire for epidemiological surveys.

    Science.gov (United States)

    Abe, Ivana Makita; Goulart, Alessandra Carvalho; Santos Júnior, Waldyr Rodrigues; Lotufo, Paulo Andrade; Benseñor, Isabela Martins

    2010-07-01

    Stroke is a relevant issue within public health and requires epidemiological surveillance tools. The aim here was to validate a questionnaire for evaluating individuals with stroke symptoms in the Stroke Morbidity and Mortality Study (Estudo de Mortalidade e Morbidade do Acidente Vascular Cerebral, EMMA), São Paulo, Brazil. This was a cross-sectional study performed among a sample of the inhabitants of Butantã, an area in the western zone of the city of São Paulo. For all households in the coverage area of a primary healthcare unit, household members over the age of 35 years answered a stroke symptom questionnaire addressing limb weakness, facial weakness, speech problems, sensory disorders and impaired vision. Thirty-six participants were randomly selected for a complete neurological examination (gold standard). Considering all the questions in the questionnaire, the sensitivity was 72.2%, specificity was 94.4%, positive predictive value was 92.9% and negative predictive value was 77.3%. The positive likelihood ratio was 12.9, the negative likelihood ratio was 0.29 and the kappa coefficient was 0.67. Limb weakness was the most sensitive symptom, and speech problems were the most specific. The stroke symptom questionnaire is a useful tool and can be applied by trained interviewers with the aim of identifying community-dwelling stroke patients, through the structure of the Family Health Program.

  17. Questionnaire-based survey of parturition in the queen

    NARCIS (Netherlands)

    Musters, J.; de Gier, J.; Kooistra, H.S.; Okkens, A.C.

    2011-01-01

    The lack of scientific data concerning whether parturition in the queen proceeds normally or not may prevent veterinarians and cat owners from recognizing parturition problems in time. A questionnaire-based study of parturition in 197 queens was performed to determine several parameters of parturiti

  18. The patient-centeredness self-efficacy questionnaire

    DEFF Research Database (Denmark)

    Zachariae, Robert; O Connor, Maja; Lassesen, Berit

    2014-01-01

    was to develop a questionnaire to assess medical student and physician patient-centeredness self-efficacy (PCSEQ) and explore its reliability and validity. METHODS: A preliminary 88-item version, based on a review of the literature on patient centeredness and student portfolios on patient communication...

  19. 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.

  20. 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