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Sample records for portfolio assessment rubric

  1. Assessing Creativity: Creating a Rubric to Effectively Evaluate Mediated Digital Portfolios

    Science.gov (United States)

    Smith, Jeffrey S.

    2017-01-01

    Objectively assessing student creative work in the fields associated with mass media can be problematic. Communicating expectations to students, as well as providing them with a clear yet flexible rubric for evaluation of copywriting, newswriting, audio production, video production, and web-design, requires examination of the relevant student…

  2. Rubrics.

    Science.gov (United States)

    Callison, Daniel

    2000-01-01

    Defines a rubric as a set of scaled criteria, one of several methods recommended for student performance assessment. Topics include classification of performance; evaluating academic and social skills; advantages and disadvantages; types of rubrics; and rubrics for information literacy. (LRW)

  3. Wise Crowd Content Assessment and Educational Rubrics

    Science.gov (United States)

    Passonneau, Rebecca J.; Poddar, Ananya; Gite, Gaurav; Krivokapic, Alisa; Yang, Qian; Perin, Dolores

    2018-01-01

    Development of reliable rubrics for educational intervention studies that address reading and writing skills is labor-intensive, and could benefit from an automated approach. We compare a main ideas rubric used in a successful writing intervention study to a highly reliable wise-crowd content assessment method developed to evaluate…

  4. Individualised Marks for Group Work: Embedding an ePortfolio Criterion in a Criterion Referenced Assessment (CRA) Rubric for Group-Work Assessment

    Science.gov (United States)

    Ellis, Leonie; Kelder, Jo-Anne

    2012-01-01

    Technology Enhanced Learning and Teaching (TELT) is a ubiquitous feature of the learning and teaching landscape at the University of Tasmania (UTAS), supported and guided by a university-wide TELT action plan. This paper reports on the most recent stage of an ongoing investigation into the use of ePortfolio learning technology to improve students'…

  5. Implementation of Portfolio Assessment in a Competency-based Dental Hygiene Program.

    Science.gov (United States)

    Gadbury-Amyot, Cynthia C.; Holt, Lorie P.; Overman, Pamela R.; Schmidt, Colleen R.

    2000-01-01

    Describes the implementation of a portfolio assessment program in the dental hygiene program at the University of Missouri School of Dentistry. Tables provide examples of program competencies and related portfolio entries, the complete scoring rubric for portfolios, and the student portfolio evaluation survey. Concludes that although portfolio…

  6. Electronic Rubrics to Assess Competences in ICT Subjects

    Science.gov (United States)

    Rivas, Manuela Raposo; De La Serna, Manuel Cebrian; Martinez-Figueira, Esther

    2014-01-01

    Helping students to acquire specific competences is nowadays one of the basic pillars of university teaching; therefore its evaluation and accreditation is of key importance. As of late, rubrics and in particular electronic rubrics (e-rubrics) have become an important resource to assess competences and guide students in their learning processes.…

  7. Empowering Student Learning Through Rubric-Referenced Self-Assessment*

    Science.gov (United States)

    He, Xiaohua; Canty, Anne

    2012-01-01

    Purpose: The purpose of this study was to investigate the effect of rubric-referenced self-assessment on performance of anatomy assignments in a group of chiropractic students. Methods: Participants (N = 259) were first-quarter students who were divided into a treatment group (n = 130) and a comparison group (n = 129). The intervention for both groups involved the use of rubrics to complete the first draft of assignments. General feedback was given by the instructor, and then the students had the opportunity to amend the assignments before resubmission (second draft). The treatment group, however, was also asked to perform rubric-referenced self-assessment of their assignments during their second draft. Although the comparison group was also provided with the identical rubrics for the assignments, the students in this group did not perform rubric-referenced self-assessment. Results: The results revealed that the students in the treatment group who used a rubric-referenced self-assessment learning tool received statistically significant higher scores than the comparison group, who did not use this rubric-referenced self-assessment tool. Conclusion: This study suggests that practicing rubric-referenced self-assessment enhances student performance on assignments. However, educators continue to face the challenge of developing practical and useful rubric tools for student self-assessment PMID:22778527

  8. Design and reliability of a didactic inphographic rubric assessment

    OpenAIRE

    Guzmán-cedillo, Yunuen Ixchel

    2017-01-01

    The objective of this study is to describe design, validity process and reliability of a rubric assessment to evaluate didactic infographics quality. Participants were fifteen judges who participate in different moments of elaboration rubric process; it was made in three process phases: design, settings and reliability determination. Content validity was obtained by percentage agreement between 3 judges by component of the rubric; likewise a Krippendorff’s alpha were applied (a = .710) in pi...

  9. Rubric to improve teachers’ self-assessment

    Directory of Open Access Journals (Sweden)

    Francesca Pedone

    2016-07-01

    Full Text Available Through this research we focused on features related to teachers’ self-assessment, understood as a systematic process of examination and as a review of the practices put in place by a professional community. This paper documents a research carried out with a group of 144 in-service teachers. In order to allow teachers to become more aware of their own educational and teaching practice, it was decided to design and develop together with them in a cooperative structure, a rubric for self-assessment of their own skills. In final results we can see that the rubric design and development process was for the teachers a moment of analysis, reflection and discussion on professionalism, about the meaning of the actions. Through the rubric, teachers were equipped with the means to identify the strengths and weaknesses of their professional competence. This instrument also facilitated the integration and effective combination of self-assessment and development, looking forward to an organic design of effective and inclusive educational programs.La rubrica per promuovere l’autovalutazione degli insegnantiAttraverso la ricerca presentata si sono voluti mettere a fuoco quegli aspetti legati all’autovalutazione degli insegnanti, intesa come processo sistematico di esame e revisione delle pratiche messe in opera da una comunità professionale. Questo lavoro documenta una ricerca svolta con un gruppo di 144 docenti in servizio. Per consentire agli insegnanti di acquisire maggiore consapevolezza della propria pratica educativa e didattica, si è scelto di progettare e realizzare insieme a loro, in assetto cooperativo, una rubrica per l’autovalutazione dell’efficacia dell’insegnamento. Nei risultati finali si evidenzia come il processo di progettazione e costruzione della rubrica abbia rappresentato per gli insegnanti un momento di analisi, di riflessione e di confronto sulla propria professionalità e sul significato delle azioni compiute. Attraverso

  10. Norming a VALUE rubric to assess graduate information literacy skills.

    Science.gov (United States)

    Turbow, David J; Evener, Julie

    2016-07-01

    The study evaluated whether a modified version of the information literacy Valid Assessment of Learning in Undergraduate Education (VALUE) rubric would be useful for assessing the information literacy skills of graduate health sciences students. Through facilitated calibration workshops, an interdepartmental six-person team of librarians and faculty engaged in guided discussion about the meaning of the rubric criteria. They applied the rubric to score student work for a peer-review essay assignment in the "Information Literacy for Evidence-Based Practice" course. To determine inter-rater reliability, the raters participated in a follow-up exercise in which they independently applied the rubric to ten samples of work from a research project in the doctor of physical therapy program: the patient case report assignment. For the peer-review essay, a high level of consistency in scoring was achieved for the second workshop, with statistically significant intra-class correlation coefficients above 0.8 for 3 criteria: "Determine the extent of evidence needed," "Use evidence effectively to accomplish a specific purpose," and "Access the needed evidence." Participants concurred that the essay prompt and rubric criteria adequately discriminated the quality of student work for the peer-review essay assignment. When raters independently scored the patient case report assignment, inter-rater agreement was low and statistically insignificant for all rubric criteria (kappa=-0.16, p>0.05-kappa=0.12, p>0.05). While the peer-review essay assignment lent itself well to rubric calibration, scorers had a difficult time with the patient case report. Lack of familiarity among some raters with the specifics of the patient case report assignment and subject matter might have accounted for low inter-rater reliability. When norming, it is important to hold conversations about search strategies and expectations of performance. Overall, the authors found the rubric to be appropriate for

  11. Design and reliability of a didactic inphographic rubric assessment

    Directory of Open Access Journals (Sweden)

    Yunuen Ixchel GUZMÁN-CEDILLO

    2017-12-01

    Full Text Available The objective of this study is to describe design, validity process and reliability of a rubric assessment to evaluate didactic infographics quality. Participants were fifteen judges who participate in different moments of elaboration rubric process; it was made in three process phases: design, settings and reliability determination. Content validity was obtained by percentage agreement between 3 judges by component of the rubric; likewise a Krippendorff’s alpha were applied (a = .710 in pilot assessment with 5 infographics in order to set possible writings contradictions between components and criteria of performance. The intern consistence was determined by Cronbach’s alpha (? = .806 in 22 infographics gradation. An Intraclass correlation coefficient icc (a = .909 was applied to 6 judges qualifications also a Krippendorff’s alpha (a = .538 both of them in ordinal levels. The rubric is composed by 9 components, 3 performance levels, definitions of each component and assignments how to use the rubric. Results suggest the rubric is valid and reliable to grade quality of didactic infographic.

  12. Rubric Authoring Tool Supporting Cognitive Skills Assessment across an Institution

    Science.gov (United States)

    Simper, Natalie

    2018-01-01

    This paper explores a method to support instructors in assessing cognitive skills in their course, designed to enable aggregation of data across an institution. A rubric authoring tool, "BASICS" (Building Assessment Scaffolds for Intellectual Cognitive Skills) was built as part of the Queen's University Learning Outcomes Assessment (LOA)…

  13. Validation of a rubric to assess innovation competence

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    Frances Watts

    2012-06-01

    Full Text Available This paper addresses the development and validation of rubrics, materials and situations for the assessment of innovation competence. Research was carried out to verify the viability of the first draft of the assessment criteria, which led to refinement of the criteria and proposals to enhance the ensuing validation process that will include students and raters of different language backgrounds.

  14. Using Rubrics as an Assessment Tool in Your Classroom

    Science.gov (United States)

    Leonhardt, Angela

    2005-01-01

    The article deals with the use of rubrics as an assessment tool in the classroom. It is said that teaching elementary music holds many joys but there are serious challenges for new and seasoned teachers including the U.S. No Child Left Behind Act. With limited time to cover music curricula, assessment is often put aside because teachers feel the…

  15. Project RAILS: Lessons Learned about Rubric Assessment of Information Literacy Skills

    Science.gov (United States)

    Belanger, Jackie; Zou, Ning; Mills, Jenny Rushing; Holmes, Claire; Oakleaf, Megan

    2015-01-01

    Rubric assessment of information literacy is an important tool for librarians seeking to show evidence of student learning. The authors, who collaborated on the Rubric Assessment of Informational Literacy Skills (RAILS) research project, draw from their shared experience to present practical recommendations for implementing rubric assessment in a…

  16. Web-Based System for Adaptable Rubrics: Case Study on CAD Assessment

    Science.gov (United States)

    Company, Pedro; Contero, Manuel; Otey, Jeffrey; Camba, Jorge D.; Agost, María-Jesús; Pérez-López, David

    2017-01-01

    This paper describes the implementation and testing of our concept of adaptable rubrics, defined as analytical rubrics that arrange assessment criteria at multiple levels that can be expanded on demand. Because of its adaptable nature, these rubrics cannot be implemented in paper formats, neither are they supported by current Learning Management…

  17. Dual Rubrics and the Process of Writing: Assessment and Best Practices in a Developmental English Course

    Science.gov (United States)

    Pireh, Diane Flanegan

    2014-01-01

    This article presents strategies for using two types of essay-writing rubrics in a developmental English class of students transitioning into college-level writing. One checklist rubric is student-facing, designed to serve as a guide for students throughout the writing process and as a self-assessment tool. The other checklist rubric is…

  18. Rubric Use in Formative Assessment: A Detailed Behavioral Rubric Helps Students Improve Their Scientific Writing Skills

    Science.gov (United States)

    Greenberg, Kathleen P.

    2015-01-01

    A detailed rubric initially designed as a scoring instrument for grading APA-style empirical research reports was tested for its ability to help students improve their scientific writing skills. Students who used the rubric while preparing their reports wrote a higher quality report than did students who did not. Students also improved the quality…

  19. A Comprehensive Evaluation Rubric for Assessing Instructional Apps

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    Cheng-Yuan Lee

    2015-01-01

    Full Text Available There is a pressing need for an evaluation rubric that examines all aspects of educational apps designed for instructional purposes. In past decades, many rubrics have been developed for evaluating educational computer-based programs; however, rubrics designed for evaluating the instructional implications of educational apps are scarce. When an Internet search for existing rubrics was conducted, only two such rubrics were found, and the evaluation criteria used in those rubrics was not clearly linked to previously conducted research nor were their evaluative dimensions clearly defined. These shortcomings result in reviewers being unable to use those rubrics to provide teachers with a precise analysis of an educational app’s instructional potential. In response, this paper presents a comprehensive rubric with 24-evaluative dimensions tailored specifically to analyze the educational potential of instructional apps.

  20. A Comprehensive Evaluation Rubric for Assessing Instructional Apps

    Science.gov (United States)

    Lee, Cheng-Yuan; Cherner, Todd Sloan

    2015-01-01

    There is a pressing need for an evaluation rubric that examines all aspects of educational apps designed for instructional purposes. In past decades, many rubrics have been developed for evaluating educational computer-based programs; however, rubrics designed for evaluating the instructional implications of educational apps are scarce. When an…

  1. Validity and reliability of portfolio assessment of competency in a baccalaureate dental hygiene program

    Science.gov (United States)

    Gadbury-Amyot, Cynthia C.

    This study examined validity and reliability of portfolio assessment using Messick's (1996, 1995) unified framework of construct validity. Theoretical and empirical evidence was sought for six aspects of construct validity. The sample included twenty student portfolios. Each portfolio were evaluated by seven faculty raters using a primary trait analysis scoring rubric. There was a significant relationship (r = .81--.95; p Dental Hygiene Board Examination (r = .60; p Dental Testing Service examination was both weak and nonsignificant (r = .19; p > .05). An open-ended survey was used to elicit student feedback on portfolio development. A majority of the students (76%) perceived value in the development of programmatic portfolios. In conclusion, the pattern of findings from this study suggest that portfolios can serve as a valid and reliable measure for assessing student competency.

  2. Expert validation of a teamwork assessment rubric: A modified Delphi study.

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    Parratt, Jenny A; Fahy, Kathleen M; Hutchinson, Marie; Lohmann, Gui; Hastie, Carolyn R; Chaseling, Marilyn; O'Brien, Kylie

    2016-01-01

    Teamwork is a 'soft skill' employability competence desired by employers. Poor teamwork skills in healthcare have an impact on adverse outcomes. Teamwork skills are rarely the focus of teaching and assessment in undergraduate courses. The TeamUP Rubric is a tool used to teach and evaluate undergraduate students' teamwork skills. Students also use the rubric to give anonymised peer feedback during team-based academic assignments. The rubric's five domains focus on planning, environment, facilitation, conflict management and individual contribution; each domain is grounded in relevant theory. Students earn marks for their teamwork skills; validity of the assessment rubric is critical. To what extent do experts agree that the TeamUP Rubric is a valid assessment of 'teamwork skills'? Modified Delphi technique incorporating Feminist Collaborative Conversations. A heterogeneous panel of 35 professionals with recognised expertise in communications and/or teamwork. Three Delphi rounds using a survey that included the rubric were conducted either face-to-face, by telephone or online. Quantitative analysis yielded item content validity indices (I-CVI); minimum consensus was pre-set at 70%. An average of the I-CVI also yielded sub-scale (domain) (D-CVI/Ave) and scale content validity indices (S-CVI/Ave). After each Delphi round, qualitative data were analysed and interpreted; Feminist Collaborative Conversations by the research team aimed to clarify and confirm consensus about the wording of items on the rubric. Consensus (at 70%) was obtained for all but one behavioural descriptor of the rubric. We modified that descriptor to address expert concerns. The TeamUP Rubric (Version 4) can be considered to be well validated at that level of consensus. The final rubric reflects underpinning theory, with no areas of conceptual overlap between rubric domains. The final TeamUP Rubric arising from this study validly measures individual student teamwork skills and can be used with

  3. Effects of a Rubric-Driven Assessment on Teacher Performance with Regard to Behavioral Management Skills

    Science.gov (United States)

    Simmons, Kevin R.

    2010-01-01

    The purpose of this researcher was to evaluate the efficacy of an in-service training program in the use of a rubric-driven assessment system for classroom behavior management. Thirty randomly assigned teachers received in-service training and 30 teachers served as a control group. The use of a rubric-driven assessment provided both teachers and…

  4. Assessing the competences associated with a nursing Bachelor thesis by means of rubrics.

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    Llaurado-Serra, M; Rodríguez, E; Gallart, A; Fuster, P; Monforte-Royo, C; De Juan, M Á

    2018-07-01

    Writing a Bachelor thesis is the last step in obtaining a university degree. The thesis may be job- or research-orientated, but it must demonstrate certain degree-level competences. Rubrics are a useful way of unifying the assessment criteria. To design a system of rubrics for assessing the competences associated with the Bachelor thesis of a nursing degree, to examine the system's reliability and validity and to analyse results in relation to the final thesis mark. Cross-sectional and psychometric study conducted between 2012 and 2014. Nursing degree at a Spanish university. Twelve tutors who designed the system of rubrics. Students (n = 76) who wrote their Bachelor thesis during the 2013-2014 academic year. After deciding which aspects would be assessed, who would assess them and when, the tutors developed seven rubrics (drafting process, assessment of the written thesis by the supervisor and by a panel, student self-assessment, peer assessment, tutor evaluation of the peer assessment and panel assessment of the viva). We analysed the reliability (inter-rater and internal consistency) and validity (convergent and discriminant) of the rubrics, and also the relationship between the competences assessed and the final thesis mark. All the rubrics had internal consistency coefficients >0.80. The rubric for oral communication skills (viva) yielded inter-rater reliability of 0.95. Factor analysis indicated a unidimensional structure for all but one of the rubrics, the exception being the rubric for peer assessment, which had a two-factor structure. The main competences associated with a good quality Bachelor thesis were written communication skills and the ability to work independently. The assessment system based on seven rubrics is shown to be valid and reliable. Writing a Bachelor thesis requires a range of degree-level competences and it offers nursing students the opportunity to develop their evidence-based practice skills. Copyright © 2018 Elsevier Ltd. All

  5. Formal Method of Description Supporting Portfolio Assessment

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    Morimoto, Yasuhiko; Ueno, Maomi; Kikukawa, Isao; Yokoyama, Setsuo; Miyadera, Youzou

    2006-01-01

    Teachers need to assess learner portfolios in the field of education. However, they need support in the process of designing and practicing what kind of portfolios are to be assessed. To solve the problem, a formal method of describing the relations between the lesson forms and portfolios that need to be collected and the relations between…

  6. Using Electronic Portfolios for Second Language Assessment

    Science.gov (United States)

    Cummins, Patricia W.; Davesne, Celine

    2009-01-01

    Portfolio assessment as developed in Europe presents a learner-empowering alternative to computer-based testing. The authors present the European Language Portfolio (ELP) and its American adaptations, LinguaFolio and the Global Language Portfolio, as tools to be used with the Common European Framework of Reference for languages and the American…

  7. Authentic assessment based showcase portfolio on learning of mathematical problem solving in senior high school

    Science.gov (United States)

    Sukmawati, Zuhairoh, Faihatuz

    2017-05-01

    The purpose of this research was to develop authentic assessment model based on showcase portfolio on learning of mathematical problem solving. This research used research and development Method (R & D) which consists of four stages of development that: Phase I, conducting a preliminary study. Phase II, determining the purpose of developing and preparing the initial model. Phase III, trial test of instrument for the initial draft model and the initial product. The respondents of this research are the students of SMAN 8 and SMAN 20 Makassar. The collection of data was through observation, interviews, documentation, student questionnaire, and instrument tests mathematical solving abilities. The data were analyzed with descriptive and inferential statistics. The results of this research are authentic assessment model design based on showcase portfolio which involves: 1) Steps in implementing the authentic assessment based Showcase, assessment rubric of cognitive aspects, assessment rubric of affective aspects, and assessment rubric of skill aspect. 2) The average ability of the students' problem solving which is scored by using authentic assessment based on showcase portfolio was in high category and the students' response in good category.

  8. Development of a Rubric to Assess Academic Writing Incorporating Plagiarism Detectors

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    Salim Razı

    2015-06-01

    Full Text Available Similarity reports of plagiarism detectors should be approached with caution as they may not be sufficient to support allegations of plagiarism. This study developed a 50-item rubric to simplify and standardize evaluation of academic papers. In the spring semester of 2011-2012 academic year, 161 freshmen’s papers at the English Language Teaching Department of Çanakkale Onsekiz Mart University, Turkey, were assessed using the rubric. Validity and reliability were established. The results indicated citation as a particularly problematic aspect, and indicated that fairer assessment could be achieved by using the rubric along with plagiarism detectors’ similarity results.

  9. Assessing students' performance in software requirements engineering education using scoring rubrics

    Science.gov (United States)

    Mkpojiogu, Emmanuel O. C.; Hussain, Azham

    2017-10-01

    The study investigates how helpful the use of scoring rubrics is, in the performance assessment of software requirements engineering students and whether its use can lead to students' performance improvement in the development of software requirements artifacts and models. Scoring rubrics were used by two instructors to assess the cognitive performance of a student in the design and development of software requirements artifacts. The study results indicate that the use of scoring rubrics is very helpful in objectively assessing the performance of software requirements or software engineering students. Furthermore, the results revealed that the use of scoring rubrics can also produce a good achievement assessments direction showing whether a student is either improving or not in a repeated or iterative assessment. In a nutshell, its use leads to the performance improvement of students. The results provided some insights for further investigation and will be beneficial to researchers, requirements engineers, system designers, developers and project managers.

  10. Student Generated Rubrics: An Assessment Model To Help All Students Succeed. Assessment Bookshelf Series.

    Science.gov (United States)

    Ainsworth, Larry; Christinson, Jan

    The assessment model described in this guide was initially developed by a team of fifth-grade teachers who wrote objectives of integrating social studies and language arts. It helps the teacher guide students to create a task-specific rubric that they use to evaluate their own and peers' work. Teachers review the student evaluations, determine the…

  11. Assessing Online Faculty: More than Student Surveys and Design Rubrics

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    Piña, Anthony A.; Bohn, Larry

    2014-01-01

    As online education continues to grow, so do the number of online courses being taught by those who did not develop the courses. However, the most popular rubrics for evaluating the quality of online courses tend to focus upon the course's design, not upon the actions of the instructor teaching the course. In this study, 140 distance education…

  12. Development of a Rubric for Collegiate Jazz Improvisation Performance Assessment

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    Moore, Kendall Ryan

    2016-01-01

    The purpose of this study was to develop a jazz improvisation rubric for the evaluation of collegiate jazz improvisation. To create this measure, research objectives were devised to investigate the aurally-observed performer-controlled components of improvisation, which aurally-observed components should be evaluated in an improvisatory…

  13. Portfolio Assessment: Production and Reduction of Complexity

    DEFF Research Database (Denmark)

    Keiding, Tina Bering; Qvortrup, Ane

    2015-01-01

    Over the last two decades, the education system has witnessed a shift from summative, product-oriented assessment towards formative, process-oriented assessment. Among the different learning and assessment initiatives introduced in the slipstream of this paradigmatic turn, the portfolio seems...... to have become one of the most popular. By re-describing the portfolio from a systems theoretical point of view, this article discusses established expectations of the portfolio in relation to transparency in learning, reflexivity and self-assessment. It shows that the majority of the literature deals...... with what-questions and that the portfolio is expected to handle a number of challenges with regard to the documentation of learning processes and achievements as well as the conditioning of learning activities. Furthermore, is becomes clear that descriptions of how the portfolio works are sparse. Based...

  14. The Use of Academic Portfolio in the Learning and Assessment of Physics Students

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    Meng Kay Ling

    2016-05-01

    Full Text Available The purpose of this research paper is to examine the use of portfolios in the teaching and learning of physics at a Singapore private college. The paper starts with a short introduction of the types of students and the purpose of using academic portfolios in their learning and assessment. Some ideas of how portfolios can be used in the local context will also be discussed. It is necessary for teachers to know how to incorporate portfolio assessment in their daily lesson plans. At the same time, students who are studying physics at the college should also know how to use portfolios to their academic advantage. The paper also highlights three of the relevant work artifacts that can be included into the physics portfolios. The three work samples are concept-maps, internet research reports and newspaper articles reports. Concept-maps are useful tools to help students establish the connections between concepts. Internet research reports serve as important means for students to know more about how some scientific devices or technology use physics in the operations. Newspaper articles reports allow students to understand the real impact of physics on the lives of people. Subsequent sections of the paper discuss about the organizational flow of the portfolio, the timeline, the selection process, the portfolio checklist and assessment rubrics, the positive influences of using portfolios, the issues to consider and also the potential problems that physics teachers may face in implementing portfolios. These sections present the important framework which teachers can use as references for their portfolio initiatives in schools.

  15. Assessment of bachelor's theses in a nursing degree with a rubrics system: Development and validation study.

    Science.gov (United States)

    González-Chordá, Víctor M; Mena-Tudela, Desirée; Salas-Medina, Pablo; Cervera-Gasch, Agueda; Orts-Cortés, Isabel; Maciá-Soler, Loreto

    2016-02-01

    Writing a bachelor thesis (BT) is the last step to obtain a nursing degree. In order to perform an effective assessment of a nursing BT, certain reliable and valid tools are required. To develop and validate a 3-rubric system (drafting process, dissertation, and viva) to assess final year nursing students' BT. A multi-disciplinary study of content validity and psychometric properties. The study was carried out between December 2014 and July 2015. Nursing Degree at Universitat Jaume I. Spain. Eleven experts (9 nursing professors and 2 education professors from 6 different universities) took part in the development and content validity stages. Fifty-two theses presented during the 2014-2015 academic year were included by consecutive sampling of cases in order to study the psychometric properties. First, a group of experts was created to validate the content of the assessment system based on three rubrics (drafting process, dissertation, and viva). Subsequently, a reliability and validity study of the rubrics was carried out on the 52 theses presented during the 2014-2015 academic year. The BT drafting process rubric has 8 criteria (S-CVI=0.93; α=0.837; ICC=0.614), the dissertation rubric has 7 criteria (S-CVI=0.9; α=0.893; ICC=0.74), and the viva rubric has 4 criteria (S-CVI=0.86; α=8.16; ICC=0.895). A nursing BT assessment system based on three rubrics (drafting process, dissertation, and viva) has been validated. This system may be transferred to other nursing degrees or degrees from other academic areas. It is necessary to continue with the validation process taking into account factors that may affect the results obtained. Copyright © 2015 Elsevier Ltd. All rights reserved.

  16. Developing an Information Literacy Assessment Rubric: A Case Study of Collaboration, Process, and Outcomes

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    Christina Hoffman Gola

    2014-07-01

    Full Text Available A team of four librarians at the [Institution Name] ([Institution Initials] Libraries partnered with the [Institution Initials] Office of Institutional Effectiveness and its Director of Assessment & Accreditation Services for General Education to conduct a campus-wide, exploratory assessment of undergraduate information literacy skills. The project evaluated a selection of graduating, senior-level student papers using a rubric developed as part of the collaboration. This paper describes and discusses the collaborative rubric development and rating process, the practical implications for other librarians seeking to conduct a similar assessment, and the impact the project is having on the library instruction program.

  17. Design Students Perspectives on Assessment Rubric in Studio-Based Learning

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    Eshun, Eric F.; Osei-Poku, Patrick

    2013-01-01

    This study examined students' perspectives on the use of assessment criteria and rubrics in graphic design studio at Kwame Nkrumah University of Science and Technology, Ghana. This assessment strategy was introduced with the desire to improve students' participation and involvement in studio-based learning programme. At the end of the semester, a…

  18. Technology Audit: Assessment of Innovative Portfolio

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    Kurushina Viktoria

    2016-01-01

    Full Text Available The article discusses the features of the technological audit performing in the companies of oil and gas sector of Russian economy. To measure the innovations quality level the scale was developed based on the Theory of Inventive Problem Solving and the theory of technological structures. Figures of the innovations quantity by levels, volume and quality of the innovative portfolio are offered for assessment the innovative portfolio quality. The method was tested on an example of oil and gas transporting enterprises. The results of the comparative analysis of innovative portfolio are shown.

  19. Developing and Validating a Tool to Assess Ethical Decision-Making Ability of Nursing Students, Using Rubrics

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    Indhraratana, Apinya; Kaemkate, Wannee

    2012-01-01

    The aim of this paper is to develop a reliable and valid tool to assess ethical decision-making ability of nursing students using rubrics. A proposed ethical decision making process, from reviewing related literature was used as a framework for developing the rubrics. Participants included purposive sample of 86 nursing students from the Royal…

  20. Development and Validation of a Rubric for Self-Assessment of 21st Century Skills at Primary Schools

    NARCIS (Netherlands)

    Sandink-de Mare, Dianne; Rusman, Ellen

    2017-01-01

    There are little or none suitable assessment instruments available for 21st century skills at primary school level. Therefore a rubric has been developed and validated for a number of 21st century skills at primary school level. The aim of this study was to determine whether the rubric enabled

  1. Developing a Rubric to Assess Student Learning Outcomes Using a Class Assignment

    Science.gov (United States)

    Thaler, Nicholas; Kazemi, Ellie; Huscher, Crystal

    2009-01-01

    We developed a rubric to assess several of our department's undergraduate student learning outcomes (SLOs). Target SLOs include applications of principles of research methodology, using appropriate statistics, adherence to the Publication Manual of the American Psychological Association, and written communication skills. We randomly sampled 20…

  2. Generic Skill Development and Learning/Assessment Process: Use of Rubrics and Student Validation

    Science.gov (United States)

    Iborra Urios, Montserrat; Ramirez Rangel, Eliana; Bringué Tomàs, Roger; Tejero Salvador, Javier; Cunill García, Fidel; Fité Piquer, Carles

    2015-01-01

    To fulfill the European Higher Education context in the subject of the Chemical Engineering Undergraduate Degree of University of Barcelona named "Chemical Engineering Experimentation II" team work, written and oral communication generic skills were developed and assessed by means of rubrics. In order to appraise the methodological…

  3. A First Step Towards Synthesising Rubrics and Video for the Formative Assessment of Complex Skills

    NARCIS (Netherlands)

    Ackermans, Kevin; Rusman, Ellen; Brand-Gruwel, Saskia; Specht, Marcus

    2016-01-01

    Abstract. The performance objectives used for the formative assessment of com- plex skills are generally set through text-based analytic rubrics[1]. Moreover, video modeling examples are a widely applied method of observational learning, providing students with context-rich modeling examples of

  4. THE APPLICATION OF ASSESSMENT RUBRIC TO MEASURE STUDENTS’ ACHIEVEMENT PROGRESS IN SPEAKING CLASS

    Directory of Open Access Journals (Sweden)

    Ida Ayu Made Puspani

    2013-11-01

    Full Text Available This paper aims at investigating the utilization of assessment rubric for students of first semester English Department Udayana University. This is a class action research (CAR applied to find out how is the implication of assessment rubric related to the syllabus design implemented in the class. The assessment rubric functions as useful tools to portrait the progress of the students` mastery in: pronunciation, fluency, use of vocabulary, and grammar (Harmer, 2008: 388-390. The analytic score of the students related to the topic should be achieved in a half a semester can give the teacher input in the evaluation of the progress; or whether the teacher should modified or not her/his syllabus according to the condition of the class as well the goals of the teacher. In conclusion assessment rubric is very useful for teacher to find out the progress of students` achievement and the how far the goals of the teacher within the subject can be reached at certain stages during teaching and learning process in class.

  5. Mapping the Association of College and Research Libraries information literacy framework and nursing professional standards onto an assessment rubric.

    Science.gov (United States)

    Willson, Gloria; Angell, Katelyn

    2017-04-01

    The authors developed a rubric for assessing undergraduate nursing research papers for information literacy skills critical to their development as researchers and health professionals. We developed a rubric mapping six American Nurses Association professional standards onto six related concepts of the Association of College & Research Libraries (ACRL) Framework for Information Literacy for Higher Education. We used this rubric to evaluate fifty student research papers and assess inter-rater reliability. Students tended to score highest on the "Information Has Value" dimension and lowest on the "Scholarship as Conversation" dimension. However, we found a discrepancy between the grading patterns of the two investigators, with inter-rater reliability being "fair" or "poor" for all six rubric dimensions. The development of a rubric that dually assesses information literacy skills and maps relevant disciplinary competencies holds potential. This study offers a template for a rubric inspired by the ACRL Framework and outside professional standards. However, the overall low inter-rater reliability demands further calibration of the rubric. Following additional norming, this rubric can be used to help students identify the key information literacy competencies that they need in order to succeed as college students and future nurses. These skills include developing an authoritative voice, determining the scope of their information needs, and understanding the ramifications of their information choices.

  6. The development of a rubric for peer assessment of individual teamwork skills in undergraduate midwifery students.

    Science.gov (United States)

    Hastie, Carolyn; Fahy, Kathleen; Parratt, Jenny

    2014-09-01

    Poor teamwork is cited as one of the major root causes of adverse events in healthcare. Bullying, resulting in illness for staff, is an expression of poor teamwork skills. Despite this knowledge, poor teamwork persists in healthcare and teamwork skills are rarely the focus of teaching and assessment in undergraduate health courses. To develop and implement an assessment tool for use in facilitating midwifery students' learning of teamwork skills. This paper describes how the TeamUP rubric tool was developed. A review of the literature found no research reports on how to teach and assess health students' teamwork skills in standing teams. The literature, however, gives guidance about how university educators should evaluate individual students using peer assessment. The developmental processes of the rubric were grounded in the theoretical literature and feminist collaborative conversations. The rubric incorporates five domains of teamwork skills: Fostering a Team Climate; Project Planning; Facilitating Teams; Managing Conflict and Quality Individual Contribution. The process and outcomes of student and academic content validation are described. The TeamUP rubric is useful for articulating, teaching and assessing teamwork skills for health professional students. The TeamUP rubric is a robust, theoretically grounded model that defines and details effective teamwork skills and related behaviours. If these skills are mastered, we predict that graduates will be more effective in teams. Our assumption is that graduates, empowered by having these skills, are more likely to manage conflict effectively and less likely to engage in bullying behaviours. Crown Copyright © 2014. Published by Elsevier Ltd. All rights reserved.

  7. A Detailed Rubric for Assessing the Quality of Teacher Resource Apps

    Directory of Open Access Journals (Sweden)

    Todd Sloan Chener

    2016-06-01

    Full Text Available Since the advent of the iPhone and rise of mobile technologies, educational apps represent one of the fastest growing markets, and both the mobile technology and educational app markets are predicted to continue experiencing growth into the foreseeable future. The irony, however, is that even with a booming market for educational apps, very little research regarding the quality of them has been conducted. Though some instruments have been developed to evaluate apps geared towards student learning, no such instrument has been created for teacher resource apps, which are designed to assist teachers in completing common tasks (e.g., taking attendance, communicating with parents, monitoring student learning and behavior, etc.. Moreover, when teachers visit the App Store or Google Play to learn about apps, the only ratings provided to them are generic, five-point evaluations, which do not provide qualifiers that explain why an app earned three, two, or five points. To address that gap, previously conducted research related to designing instructional technologies coupled with best practices for supporting teachers were first identified. That information was then used to construct a comprehensive rubric for assessing teacher re-source apps. In this article, a discussion that explains the need for such a rubric is offered before describing the process used to create it. The article then presents the rubric and discusses its different components and potential limitations and concludes with suggestions for future research based on the rubric.

  8. A Mentor-Based Portfolio Program to Evaluate Pharmacy Students’ Self-Assessment Skills

    Science.gov (United States)

    Kalata, Lindsay R.

    2013-01-01

    Objective. To evaluate pharmacy students' self-assessment skills with an electronic portfolio program using mentor evaluators. Design. First-year (P1) and second-year (P2) pharmacy students used online portfolios that required self-assessments of specific graded class assignments. Using a rubric, faculty and alumni mentors evaluated students' self-assessments and provided feedback. Assessment. Eighty-four P1 students, 74 P2 students, and 59 mentors participated in the portfolio program during 2010-2011. Both student groups performed well overall, with only a small number of resubmissions required. P1 students showed significant improvements across semesters for 2 of the self-assessment questions; P2 students' scores did not differ significantly. The P1 scores were significantly higher than P2 scores for 3 questions during spring 2011. Mentors and students had similar levels of agreement with the extent to which students put forth their best effort on the self-assessments. Conclusion. An electronic portfolio using mentors based inside and outside the school provided students with many opportunities to practice their self-assessment skills. This system represents a useful method of incorporating self-assessments into the curriculum that allows for feedback to be provided to the students. PMID:23716749

  9. A mentor-based portfolio program to evaluate pharmacy students' self-assessment skills.

    Science.gov (United States)

    Kalata, Lindsay R; Abate, Marie A

    2013-05-13

    Objective. To evaluate pharmacy students' self-assessment skills with an electronic portfolio program using mentor evaluators. Design. First-year (P1) and second-year (P2) pharmacy students used online portfolios that required self-assessments of specific graded class assignments. Using a rubric, faculty and alumni mentors evaluated students' self-assessments and provided feedback. Assessment. Eighty-four P1 students, 74 P2 students, and 59 mentors participated in the portfolio program during 2010-2011. Both student groups performed well overall, with only a small number of resubmissions required. P1 students showed significant improvements across semesters for 2 of the self-assessment questions; P2 students' scores did not differ significantly. The P1 scores were significantly higher than P2 scores for 3 questions during spring 2011. Mentors and students had similar levels of agreement with the extent to which students put forth their best effort on the self-assessments. Conclusion. An electronic portfolio using mentors based inside and outside the school provided students with many opportunities to practice their self-assessment skills. This system represents a useful method of incorporating self-assessments into the curriculum that allows for feedback to be provided to the students.

  10. Developing an Information Literacy Assessment Rubric: A Case Study of Collaboration, Process, and Outcomes

    OpenAIRE

    Christina Hoffman Gola; Irene Ke; Kerry M. Creelman; Shawn P. Vaillancourt

    2014-01-01

    A team of four librarians at the [Institution Name] ([Institution Initials]) Libraries partnered with the [Institution Initials] Office of Institutional Effectiveness and its Director of Assessment & Accreditation Services for General Education to conduct a campus-wide, exploratory assessment of undergraduate information literacy skills. The project evaluated a selection of graduating, senior-level student papers using a rubric developed as part of the collaboration. This paper describes and ...

  11. Exploring the role of assessment criteria during teachers' collaborative judgement processes of students' portfolios

    NARCIS (Netherlands)

    Schaaf, van der M.F.; Baartman, L.K.J.; Prins, F.J.

    2012-01-01

    Student portfolios are increasingly used for assessing student competences in higher education, but results about the construct validity of portfolio assessment are mixed. A prerequisite for construct validity is that the portfolio assessment is based on relevant portfolio content. Assessment

  12. The Use of Academic Portfolio in the Learning and Assessment of Physics Students from a Singapore Private College

    Directory of Open Access Journals (Sweden)

    Meng Kay Ling

    2016-07-01

    Full Text Available The purpose of this research paper is to examine the use of portfolios in the teaching and learning of physics at a Singapore private college. The paper starts with a short introduction of the types of students and the purpose of using academic portfolios in their learning and assessment. Some ideas of how portfolios can be used in the local context will also be discussed. It is necessary for teachers to know how to incorporate portfolio assessment in their daily lesson plans. At the same time, students who are studying physics at the college should also know how to use portfolios to their academic advantage. The paper also highlights three of the relevant work artifacts that can be included into the physics portfolios. The three work samples are concept-maps, internet research reports and newspaper articles reports. Concept-maps are useful tools to help students establish the connections between concepts. Internet research reports serve as important means for students to know more about how some scientific devices or technology use physics in the operations. Newspaper articles reports allow students to understand the real impact of physics on the lives of people. Subsequent sections of the paper discuss about the organizational flow of the portfolio, the timeline, the selection process, the portfolio checklist and assessment rubrics, the positive influences of using portfolios, the issues to consider and also the potential problems that physics teachers may face in implementing portfolios. These sections present the important framework which teachers can use as references for their portfolio initiatives in schools.

  13. Assessment of work-integrated learning: comparison of the usage of a grading rubric by supervising radiographers and teachers

    Energy Technology Data Exchange (ETDEWEB)

    Kilgour, Andrew J, E-mail: akilgour@csu.edu.au [Charles Sturt University, Wagga Wagga, NSW (Australia); Kilgour, Peter W [Avondale College of Higher Education, Cooranbong, NSW (Australia); Gerzina, Tania [Dental Educational Research, Faculty of Dentistry, Jaw Function and Orofacial Pain Research Unit, Westmead Centre for Oral Health, C24- Westmead Hospital, The University of Sydney, Sydney, NSW, 2006 (Australia); Christian, Beverly [Avondale College of Higher Education, Cooranbong, NSW (Australia); Charles Sturt University, Wagga Wagga, NSW (Australia)

    2014-02-15

    Introduction: Professional work-integrated learning (WIL) that integrates the academic experience with off-campus professional experience placements is an integral part of many tertiary courses. Issues with the reliability and validity of assessment grades in these placements suggest that there is a need to strengthen the level of academic rigour of placements in these programmes. This study aims to compare the attitudes to the usage of assessment rubrics of radiographers supervising medical imaging students and teachers supervising pre-service teachers. Methods: WIL placement assessment practices in two programmes, pre-service teacher training (Avondale College of Higher Education, NSW) and medical diagnostic radiography (Faculty of Health Sciences, University of Sydney, NSW), were compared with a view to comparing assessment strategies across these two different educational domains. Educators (course coordinators) responsible for teaching professional development placements of teacher trainees and diagnostic radiography students developed a standards-based grading rubric designed to guide assessment of students’ work during WIL placement by assessors. After ∼12 months of implementation of the rubrics, assessors’ reaction to the effectiveness and usefulness of the grading rubric was determined using a specially created survey form. Data were collected over the period from March to June 2011. Quantitative and qualitative data found that assessors in both programmes considered the grading rubric to be a vital tool in the assessment process, though teacher supervisors were more positive about the benefits of its use than the radiographer supervisors. Results: Benefits of the grading rubric included accuracy and consistency of grading, ability to identify specific areas of desired development and facilitation of the provision of supervisor feedback. The use of assessment grading rubrics is of benefit to assessors in WIL placements from two very different

  14. Assessment of work-integrated learning: comparison of the usage of a grading rubric by supervising radiographers and teachers

    Energy Technology Data Exchange (ETDEWEB)

    Kilgour, Andrew J, E-mail: akilgour@csu.edu.au [Charles Sturt University, Wagga Wagga, NSW (Australia); Kilgour, Peter W [Avondale College of Higher Education, Cooranbong, NSW (Australia); Gerzina, Tania [Dental Educational Research, Faculty of Dentistry, Jaw Function and Orofacial Pain Research Unit, Westmead Centre for Oral Health, C24- Westmead Hospital, The University of Sydney, Sydney, NSW, 2006 (Australia); Christian, Beverly [Avondale College of Higher Education, Cooranbong, NSW (Australia); Charles Sturt University, Wagga Wagga, NSW (Australia)

    2014-02-15

    Introduction: Professional work-integrated learning (WIL) that integrates the academic experience with off-campus professional experience placements is an integral part of many tertiary courses. Issues with the reliability and validity of assessment grades in these placements suggest that there is a need to strengthen the level of academic rigour of placements in these programmes. This study aims to compare the attitudes to the usage of assessment rubrics of radiographers supervising medical imaging students and teachers supervising pre-service teachers. Methods: WIL placement assessment practices in two programmes, pre-service teacher training (Avondale College of Higher Education, NSW) and medical diagnostic radiography (Faculty of Health Sciences, University of Sydney, NSW), were compared with a view to comparing assessment strategies across these two different educational domains. Educators (course coordinators) responsible for teaching professional development placements of teacher trainees and diagnostic radiography students developed a standards-based grading rubric designed to guide assessment of students’ work during WIL placement by assessors. After ∼12 months of implementation of the rubrics, assessors’ reaction to the effectiveness and usefulness of the grading rubric was determined using a specially created survey form. Data were collected over the period from March to June 2011. Quantitative and qualitative data found that assessors in both programmes considered the grading rubric to be a vital tool in the assessment process, though teacher supervisors were more positive about the benefits of its use than the radiographer supervisors. Results: Benefits of the grading rubric included accuracy and consistency of grading, ability to identify specific areas of desired development and facilitation of the provision of supervisor feedback. The use of assessment grading rubrics is of benefit to assessors in WIL placements from two very different

  15. Assessment of work-integrated learning: comparison of the usage of a grading rubric by supervising radiographers and teachers

    International Nuclear Information System (INIS)

    Kilgour, Andrew J; Kilgour, Peter W; Gerzina, Tania; Christian, Beverly

    2014-01-01

    Introduction: Professional work-integrated learning (WIL) that integrates the academic experience with off-campus professional experience placements is an integral part of many tertiary courses. Issues with the reliability and validity of assessment grades in these placements suggest that there is a need to strengthen the level of academic rigour of placements in these programmes. This study aims to compare the attitudes to the usage of assessment rubrics of radiographers supervising medical imaging students and teachers supervising pre-service teachers. Methods: WIL placement assessment practices in two programmes, pre-service teacher training (Avondale College of Higher Education, NSW) and medical diagnostic radiography (Faculty of Health Sciences, University of Sydney, NSW), were compared with a view to comparing assessment strategies across these two different educational domains. Educators (course coordinators) responsible for teaching professional development placements of teacher trainees and diagnostic radiography students developed a standards-based grading rubric designed to guide assessment of students’ work during WIL placement by assessors. After ∼12 months of implementation of the rubrics, assessors’ reaction to the effectiveness and usefulness of the grading rubric was determined using a specially created survey form. Data were collected over the period from March to June 2011. Quantitative and qualitative data found that assessors in both programmes considered the grading rubric to be a vital tool in the assessment process, though teacher supervisors were more positive about the benefits of its use than the radiographer supervisors. Results: Benefits of the grading rubric included accuracy and consistency of grading, ability to identify specific areas of desired development and facilitation of the provision of supervisor feedback. The use of assessment grading rubrics is of benefit to assessors in WIL placements from two very different

  16. Validity of portfolio assessment: which qualities determine ratings?

    NARCIS (Netherlands)

    Driessen, E.W.; Overeem, K.; Tartwijk, J. van; Vleuten, C.P.M. van der; Muijtjens, A.M.M.

    2006-01-01

    The portfolio is becoming increasingly accepted as a valuable tool for learning and assessment. The validity of portfolio assessment, however, may suffer from bias due to irrelevant qualities, such as lay-out and writing style. We examined the possible effects of such qualities in a portfolio

  17. Abstract: Introducing Rubrics as an Objective Assessment Strategy ...

    African Journals Online (AJOL)

    The Midwifery department at the School of Nursing and Midwifery (SONM), within the College of Medicine and Health Sciences (CMHS) at the University of Rwanda (UR), has taken on the challenge of trialing innovative teaching and assessment methodologies, especially with the baccalaureate completion cohorts.

  18. Rubric Assessment on Science and Creative Thinking Skills of Students

    Science.gov (United States)

    Ratnasusanti, H.; Ana, A.; Nurafiati, P.; Umusyaadah, L.

    2018-02-01

    The result of the monitoring and evaluation of the latest Indonesian curriculum (the 2013 curriculum) implementation at junior high school level year of 2014 showed that one of the difficult things that learners had in implementation 2013 curriculum is doing the result. The characteristic of applying the 2013 curriculum is to emphasize the modern pedagogic dimension of learning, which is using scientific approach, which requires learners to have highlevel thinking skills, one of which is creative thinking skills. The aims of this research is to implement performance assessment in measuring the creative thinking of junior high school students on subject Prakarya. The form of the main performance assessment is the task and assessment criteria. The experimental method that been used is the Quasi Experiment with Non-Equivalent Design Group Research. Population in this study is the students of VIII class of junior high school in Bandung, Indonesia which consists of six classes. And two classes are selected for the sample from that six classes and VIII A class were chosen, while VIII F class has been chosen as control class. The result of this research showed that the rubics of performance assessment can be measure or identify the creative thinking skill, its prove by the result of pre-test dan post-test are more dominant. In material of identification student’s creative thinking skills are reached an average 85 compare 79 with the control class. while in the presentation the experimental class got an average of 85 bigger than the control class which only reached 79.

  19. Development and validation of a physics problem-solving assessment rubric

    Science.gov (United States)

    Docktor, Jennifer Lynn

    Problem solving is a complex process that is important for everyday life and crucial for learning physics. Although there is a great deal of effort to improve student problem solving throughout the educational system, there is no standard way to evaluate written problem solving that is valid, reliable, and easy to use. Most tests of problem solving performance given in the classroom focus on the correctness of the end result or partial results rather than the quality of the procedures and reasoning leading to the result, which gives an inadequate description of a student's skills. A more detailed and meaningful measure is necessary if different curricular materials or pedagogies are to be compared. This measurement tool could also allow instructors to diagnose student difficulties and focus their coaching. It is important that the instrument be applicable to any problem solving format used by a student and to a range of problem types and topics typically used by instructors. Typically complex processes such as problem solving are assessed by using a rubric, which divides a skill into multiple quasi-independent categories and defines criteria to attain a score in each. This dissertation describes the development of a problem solving rubric for the purpose of assessing written solutions to physics problems and presents evidence for the validity, reliability, and utility of score interpretations on the instrument.

  20. A Standardized Rubric for Evaluating Webquest Design: Reliability Analysis of ZUNAL Webquest Design Rubric

    Science.gov (United States)

    Unal, Zafer; Bodur, Yasar; Unal, Aslihan

    2012-01-01

    Current literature provides many examples of rubrics that are used to evaluate the quality of web-quest designs. However, reliability of these rubrics has not yet been researched. This is the first study to fully characterize and assess the reliability of a webquest evaluation rubric. The ZUNAL rubric was created to utilize the strengths of the…

  1. Assessing student written problem solutions: A problem-solving rubric with application to introductory physics

    Science.gov (United States)

    Docktor, Jennifer L.; Dornfeld, Jay; Frodermann, Evan; Heller, Kenneth; Hsu, Leonardo; Jackson, Koblar Alan; Mason, Andrew; Ryan, Qing X.; Yang, Jie

    2016-06-01

    Problem solving is a complex process valuable in everyday life and crucial for learning in the STEM fields. To support the development of problem-solving skills it is important for researchers and curriculum developers to have practical tools that can measure the difference between novice and expert problem-solving performance in authentic classroom work. It is also useful if such tools can be employed by instructors to guide their pedagogy. We describe the design, development, and testing of a simple rubric to assess written solutions to problems given in undergraduate introductory physics courses. In particular, we present evidence for the validity, reliability, and utility of the instrument. The rubric identifies five general problem-solving processes and defines the criteria to attain a score in each: organizing problem information into a Useful Description, selecting appropriate principles (Physics Approach), applying those principles to the specific conditions in the problem (Specific Application of Physics), using Mathematical Procedures appropriately, and displaying evidence of an organized reasoning pattern (Logical Progression).

  2. Assessing student written problem solutions: A problem-solving rubric with application to introductory physics

    Directory of Open Access Journals (Sweden)

    Jennifer L. Docktor

    2016-05-01

    Full Text Available Problem solving is a complex process valuable in everyday life and crucial for learning in the STEM fields. To support the development of problem-solving skills it is important for researchers and curriculum developers to have practical tools that can measure the difference between novice and expert problem-solving performance in authentic classroom work. It is also useful if such tools can be employed by instructors to guide their pedagogy. We describe the design, development, and testing of a simple rubric to assess written solutions to problems given in undergraduate introductory physics courses. In particular, we present evidence for the validity, reliability, and utility of the instrument. The rubric identifies five general problem-solving processes and defines the criteria to attain a score in each: organizing problem information into a Useful Description, selecting appropriate principles (Physics Approach, applying those principles to the specific conditions in the problem (Specific Application of Physics, using Mathematical Procedures appropriately, and displaying evidence of an organized reasoning pattern (Logical Progression.

  3. The Contribution of Rubrics to the Validity of Performance Assessment: A Study of the Conservation-Restoration and Design Undergraduate Degrees

    Science.gov (United States)

    Menéndez-Varela, José-Luis; Gregori-Giralt, Eva

    2016-01-01

    Rubrics have attained considerable importance in the authentic and sustainable assessment paradigm; nevertheless, few studies have examined their contribution to validity, especially outside the domain of educational studies. This empirical study used a quantitative approach to analyse the validity of a rubrics-based performance assessment. Raters…

  4. Evaluating the Validity of Portfolio Assessments for Licensure Decisions

    Science.gov (United States)

    Wilson, Mark; Hallam, P. J.; Pecheone, Raymond; Moss, Pamela A.

    2014-01-01

    This study examines one part of a validity argument for portfolio assessments of teaching practice used as an indicator of teaching quality to inform a licensure decision. We investigate the relationship among portfolio assessment scores, a test of teacher knowledge (ETS's Praxis I and II), and changes in student achievement (on…

  5. The Effects of Portfolio Assessment on Writing of EFL Students

    Science.gov (United States)

    Nezakatgoo, Behzad

    2011-01-01

    The primary focus of this study was to determine the effect of portfolio assessment on final examination scores of EFL students' writing skill. To determine the impact of portfolio-based writing assessment 40 university students who enrolled in composition course were initially selected and divided randomly into two experimental and control…

  6. Improving Assessment Processes in Higher Education: Student and Teacher Perceptions of the Effectiveness of a Rubric Embedded in a LMS

    Science.gov (United States)

    Atkinson, Doug; Lim, Siew Leng

    2013-01-01

    Students and teachers play different roles and thus have different perceptions about the effectiveness of assessment including structure, feedback, consistency, fairness and efficiency. In an undergraduate Business Information Systems course, a rubric was designed and semi-automated through a learning management system (LMS) to provide formative…

  7. Rubrics and Self-Assessment Scripts Effects on Self-Regulation, Learning and Self-Efficacy in Secondary Education

    Science.gov (United States)

    Panadero, Ernesto; Tapia, Jesus Alonso; Huertas, Juan Antonio

    2012-01-01

    This study compares the effects of two different self-assessment tools--rubrics and scripts--on self-regulation, learning and self-efficacy in interaction with two other independent variables (type of instructions and feedback). A total of 120 secondary school students analyzed landscapes--a usual task when studying Geography--in one of twelve…

  8. An Assessment of Reliability and Validity of a Rubric for Grading APA-Style Introductions

    Science.gov (United States)

    Stellmack, Mark A.; Konheim-Kalkstein, Yasmine L.; Manor, Julia E.; Massey, Abigail R.; Schmitz, Julie Ann P.

    2009-01-01

    This article describes the empirical evaluation of the reliability and validity of a grading rubric for grading APA-style introductions of undergraduate students. Levels of interrater agreement and intrarater agreement were not extremely high but were similar to values reported in the literature for comparably structured rubrics. Rank-order…

  9. Transforming Rubrics Using Factor Analysis

    Science.gov (United States)

    Baryla, Ed; Shelley, Gary; Trainor, William

    2012-01-01

    Student learning and program effectiveness is often assessed using rubrics. While much time and effort may go into their creation, it is equally important to assess how effective and efficient the rubrics actually are in terms of measuring competencies over a number of criteria. This study demonstrates the use of common factor analysis to identify…

  10. Semantic modeling of portfolio assessment in e-learning environment

    Directory of Open Access Journals (Sweden)

    Lucila Romero

    2017-01-01

    Full Text Available In learning environment, portfolio is used as a tool to keep track of learner’s progress. Particularly, when it comes to e-learning, continuous assessment allows greater customization and efficiency in learning process and prevents students lost interest in their study. Also, each student has his own characteristics and learning skills that must be taken into account in order to keep learner`s interest. So, personalized monitoring is the key to guarantee the success of technology-based education. In this context, portfolio assessment emerge as the solution because is an easy way to allow teacher organize and personalize assessment according to students characteristic and need. A portfolio assessment can contain various types of assessment like formative assessment, summative assessment, hetero or self-assessment and use different instruments like multiple choice questions, conceptual maps, and essay among others. So, a portfolio assessment represents a compilation of all assessments must be solved by a student in a course, it documents progress and set targets. In previous work, it has been proposed a conceptual framework that consist of an ontology network named AOnet which is a semantic tool conceptualizing different types of assessments. Continuing that work, this paper presents a proposal to implement portfolios assessment in e-learning environments. The proposal consists of a semantic model that describes key components and relations of this domain to set the bases to develop a tool to generate, manage and perform portfolios assessment.

  11. Interrater reliability of the mind map assessment rubric in a cohort of medical students

    Directory of Open Access Journals (Sweden)

    Zipp Genevieve

    2009-04-01

    Full Text Available Abstract Background Learning strategies are thinking tools that students can use to actively acquire information. Examples of learning strategies include mnemonics, charts, and maps. One strategy that may help students master the tsunami of information presented in medical school is the mind map learning strategy. Currently, there is no valid and reliable rubric to grade mind maps and this may contribute to their underutilization in medicine. Because concept maps and mind maps engage learners similarly at a metacognitive level, a valid and reliable concept map assessment scoring system was adapted to form the mind map assessment rubric (MMAR. The MMAR can assess mind map depth based upon concept-links, cross-links, hierarchies, examples, pictures, and colors. The purpose of this study was to examine interrater reliability of the MMAR. Methods This exploratory study was conducted at a US medical school as part of a larger investigation on learning strategies. Sixty-six (N = 66 first-year medical students were given a 394-word text passage followed by a 30-minute presentation on mind mapping. After the presentation, subjects were again given the text passage and instructed to create mind maps based upon the passage. The mind maps were collected and independently scored using the MMAR by 3 examiners. Interrater reliability was measured using the intraclass correlation coefficient (ICC statistic. Statistics were calculated using SPSS version 12.0 (Chicago, IL. Results Analysis of the mind maps revealed the following: concept-links ICC = .05 (95% CI, -.42 to .38, cross-links ICC = .58 (95% CI, .37 to .73, hierarchies ICC = .23 (95% CI, -.15 to .50, examples ICC = .53 (95% CI, .29 to .69, pictures ICC = .86 (95% CI, .79 to .91, colors ICC = .73 (95% CI, .59 to .82, and total score ICC = .86 (95% CI, .79 to .91. Conclusion The high ICC value for total mind map score indicates strong MMAR interrater reliability. Pictures and colors demonstrated moderate

  12. Interrater reliability of the mind map assessment rubric in a cohort of medical students.

    Science.gov (United States)

    D'Antoni, Anthony V; Zipp, Genevieve Pinto; Olson, Valerie G

    2009-04-28

    Learning strategies are thinking tools that students can use to actively acquire information. Examples of learning strategies include mnemonics, charts, and maps. One strategy that may help students master the tsunami of information presented in medical school is the mind map learning strategy. Currently, there is no valid and reliable rubric to grade mind maps and this may contribute to their underutilization in medicine. Because concept maps and mind maps engage learners similarly at a metacognitive level, a valid and reliable concept map assessment scoring system was adapted to form the mind map assessment rubric (MMAR). The MMAR can assess mind map depth based upon concept-links, cross-links, hierarchies, examples, pictures, and colors. The purpose of this study was to examine interrater reliability of the MMAR. This exploratory study was conducted at a US medical school as part of a larger investigation on learning strategies. Sixty-six (N = 66) first-year medical students were given a 394-word text passage followed by a 30-minute presentation on mind mapping. After the presentation, subjects were again given the text passage and instructed to create mind maps based upon the passage. The mind maps were collected and independently scored using the MMAR by 3 examiners. Interrater reliability was measured using the intraclass correlation coefficient (ICC) statistic. Statistics were calculated using SPSS version 12.0 (Chicago, IL). Analysis of the mind maps revealed the following: concept-links ICC = .05 (95% CI, -.42 to .38), cross-links ICC = .58 (95% CI, .37 to .73), hierarchies ICC = .23 (95% CI, -.15 to .50), examples ICC = .53 (95% CI, .29 to .69), pictures ICC = .86 (95% CI, .79 to .91), colors ICC = .73 (95% CI, .59 to .82), and total score ICC = .86 (95% CI, .79 to .91). The high ICC value for total mind map score indicates strong MMAR interrater reliability. Pictures and colors demonstrated moderate to strong interrater reliability. We conclude that the

  13. Rubrics: Heuristics for Developing Writing Strategies

    Science.gov (United States)

    De La Paz, Susan

    2009-01-01

    Rubrics are an integral part of many writing programs, and they represent elements of good writing in essays, stories, poems, as well as other genres and forms of text. Although it is possible to use rubrics to teach students about the processes underlying effective writing, a more common practice is to use rubrics as a means of assessment, after…

  14. Nursing students' experiences with the use of authentic assessment rubric and case approach in the clinical laboratories.

    Science.gov (United States)

    Wu, Xi Vivien; Heng, Mary Anne; Wang, Wenru

    2015-04-01

    One current challenge for nurse educators is to examine effective nursing assessment tools which integrate nursing knowledge into practice. Authentic assessment allows nursing students to apply knowledge to real-life experiences. Contextualized cases have engaged students for preparation of diverse clinical situations and develop critical thinking skills. This study aimed to explore nursing students' experiences and learning outcomes with the use of an authentic assessment rubric and a case approach. An exploratory qualitative approach using focus-group discussions and an open-ended survey was adopted. Sixteen nursing students participated in three focus-group discussions and 39 nursing students completed an open-ended survey. Nursing students noted that an authentic assessment rubric with a case approach provided clarity for their learning goals; built confidence; developed knowledge, skill competencies and critical thinking skills; increased awareness of caring attributes and communication skills; and enriched and extended learning through self-, peer- and teacher-assessments. These findings provide rich insights for nurse educators and curriculum developers in the use of an authentic assessment rubric and a case approach in nursing education. Copyright © 2014 Elsevier Ltd. All rights reserved.

  15. Portfolio Assessment: A Handbook for Educators. Assessment Bookshelf Series.

    Science.gov (United States)

    Barton, James, Ed.; Collins, Angelo, Ed.

    This guide contains practical steps for integrating portfolios into any K-12 classroom and tips for effective classroom management of portfolios. It also contains actual examples of portfolios in action in a variety of subject areas. The chapters are: (1) "Starting Out: Designing Your Portfolio" (James Barton and Angelo Collins); (2) "Preparing…

  16. Assessment and Planning Using Portfolio Analysis

    Science.gov (United States)

    Roberts, Laura B.

    2010-01-01

    Portfolio analysis is a simple yet powerful management tool. Programs and activities are placed on a grid with mission along one axis and financial return on the other. The four boxes of the grid (low mission, low return; high mission, low return; high return, low mission; high return, high mission) help managers identify which programs might be…

  17. Validity of a new assessment rubric for a short-answer test of clinical reasoning.

    Science.gov (United States)

    Yeung, Euson; Kulasagarem, Kulamakan; Woods, Nicole; Dubrowski, Adam; Hodges, Brian; Carnahan, Heather

    2016-07-26

    The validity of high-stakes decisions derived from assessment results is of primary concern to candidates and certifying institutions in the health professions. In the field of orthopaedic manual physical therapy (OMPT), there is a dearth of documented validity evidence to support the certification process particularly for short-answer tests. To address this need, we examined the internal structure of the Case History Assessment Tool (CHAT); this is a new assessment rubric developed to appraise written responses to a short-answer test of clinical reasoning in post-graduate OMPT certification in Canada. Fourteen physical therapy students (novices) and 16 physical therapists (PT) with minimal and substantial OMPT training respectively completed a mock examination. Four pairs of examiners (n = 8) participated in appraising written responses using the CHAT. We conducted separate generalizability studies (G studies) for all participants and also by level of OMPT training. Internal consistency was calculated for test questions with more than 2 assessment items. Decision studies were also conducted to determine optimal application of the CHAT for OMPT certification. The overall reliability of CHAT scores was found to be moderate; however, reliability estimates for the novice group suggest that the scale was incapable of accommodating for scores of novices. Internal consistency estimates indicate item redundancies for several test questions which will require further investigation. Future validity studies should consider discriminating the clinical reasoning competence of OMPT trainees strictly at the post-graduate level. Although rater variance was low, the large variance attributed to error sources not incorporated in our G studies warrant further investigations into other threats to validity. Future examination of examiner stringency is also warranted.

  18. Risk Assessment and Integration Team (RAIT) Portfolio Risk Analysis Strategy

    Science.gov (United States)

    Edwards, Michelle

    2010-01-01

    Impact at management level: Qualitative assessment of risk criticality in conjunction with risk consequence, likelihood, and severity enable development of an "investment policy" towards managing a portfolio of risks. Impact at research level: Quantitative risk assessments enable researchers to develop risk mitigation strategies with meaningful risk reduction results. Quantitative assessment approach provides useful risk mitigation information.

  19. Practitioners' Perceptions of the Transition to Portfolio Assessment.

    Science.gov (United States)

    Yumori, Wendie C.; Tibbetts, Katherine A.

    A study examined practitioners' perceptions about the transition from a scope and sequence of skills approach to reading instruction and assessment to a whole literacy curriculum and portfolio assessment. Subjects, four consultants and eight teachers at one of the seven public elementary schools served by the Kamehameha Early Education Program…

  20. Implementing Portfolios Using Tk20: An Educational Assessment System

    Science.gov (United States)

    Zhang, Jie; Fallon, Moira A.; Wright, Allison M.

    2016-01-01

    The purpose of this paper is to share results of collaborative effort introducing special education portfolios into an inclusive teacher education program using the Tk20 assessment system. Tk20 is an assessment system for both providing evidence of educational skills and achieving that evidence in such a way as to demonstrate growth of teacher…

  1. Self-Regulation through Portfolio Assessment in Writing Classrooms

    Science.gov (United States)

    Mak, Pauline; Wong, Kevin M.

    2018-01-01

    Portfolio assessment (PA) is promulgated as a useful tool to promote learning through assessment. While the benefits of PA are well documented, there is a lack of empirical research on how students' self-regulation can be effectively fostered in writing classrooms, and how the use of PA can develop students' self-regulated capacities. This…

  2. [Development of a portfolio for competency-based assessment in a clinical clerkship curriculum].

    Science.gov (United States)

    Roh, HyeRin; Lee, Jong-Tae; Yoon, Yoo Sang; Rhee, Byoung Doo

    2015-12-01

    The purpose of this report was to describe our experience in planning and developing a portfolio for a clinical clerkship curriculum. We have developed a portfolio for assessing student competency since 2007. During an annual workshop on clinical clerkship curricula, clerkship directors from five Paik hospitals of Inje University met to improve the assessment of the portfolio. We generated templates for students to record their activities and reflection and receive feedback. We uploaded these templates to our school's website for students to download freely. Annually, we have held a faculty development seminar and a workshop for portfolio assessment and feedback. Also, we established an orientation program on how to construct a learning portfolio for students. Future actions include creating a ubiquitous portfolio system, extending the portfolio to the entire curriculum, setting up an advisor system, and managing the quality of the portfolio. This study could be helpful for medical schools that plan to improve their portfolio assessment with an outcome-based approach.

  3. Assessment of Unpublished Scholarly Activity: An Informal Rubric for Evaluating Faculty Performance

    OpenAIRE

    Ward, Robert W.

    2008-01-01

    Some forms of scholarly productivity, such as peer-reviewed publications, are easily recognized and incorporated into processes involving evaluation, retention, and promotion of faculty. A method for initiating peer review of unpublished scholarly activity may serve to permit recognition of such work in faculty evaluation. This article shares an instrument for the peer review of unpublished scholarship, such as scholarship of integration or teaching. A nonquantitative rubric for the evaluatio...

  4. Maximizing the Impact of Portfolio Assessment through Effective Instructional Leadership.

    Science.gov (United States)

    Krusekopf, Frances; Karr-Kidwell, P. J.

    This study was designed as a field research project aimed at improving the method of assessing student learning at ACT Academy in the McKinney Independent School District, McKinney, Texas. Data and information were gathered and analyzed to see how the administration could improve the current student portfolio process. Reflections were completed by…

  5. A Research Experience Using Portfolios for Assessing College Teaching

    Science.gov (United States)

    Cisneros-Cohernour, Edith J.; Stake, Robert E.

    2014-01-01

    In this article, we use the findings of a study conducted in a university in the southeast of Mexico to examine strengths and limitations of portfolios to assess formatively the quality of teaching. The research is part of the study: Model for the Development and Evaluation of Academic Competencies, involving researchers from six Mexican…

  6. The Effect of Portfolio Assessment on Learning Idioms in Writing

    Science.gov (United States)

    Tahriri, Abdorreza; Sabet, Masoud Khalili; Aeineh, Afrouz

    2014-01-01

    The present study sought to investigate the effect of portfolio assessment on idiom competence of Iranian EFL learners. For the purpose of this study, 30 students from upper-intermediate level of English proficiency took part in this study. They were chosen through convenience sampling from a language institute in Rasht, Iran. They were randomly…

  7. Investment Portfolio Simulation: An Assessment Task in Finance

    Science.gov (United States)

    Parle, Gabrielle; Laing, Gregory K.

    2017-01-01

    The use of an investment portfolio simulation as an assessment task is intended to reinforce learning by involving students in practical application of theoretical principles in a real-time actual financial market. Simulation as a teaching pedagogy promotes individual involvement and provides students with a deeper understanding of the issues, and…

  8. The Effect of Portfolio Assessment on Learning Idioms in Writing

    Directory of Open Access Journals (Sweden)

    Abdorreza Tahriri

    2014-04-01

    Full Text Available The present study sought to investigate the effect of portfolio assessment on idiom competence of Iranian EFL learners. For the purpose of this study, 30 students from upper-intermediate level of English proficiency took part in this study. They were chosen through convenience sampling from a language institute in Rasht, Iran. They were randomly divided into experimental and control groups. A TOEFL test and a test of idioms were given to the students to ensure their homogeneity in terms of language proficiency and knowledge of idioms, respectively. The experimental group was intended to create a portfolio and put their writing samples, in which idioms were used, in the portfolio. They were involved in the process of self-and-peer assessment. The teacher also provided them with feedback and comments. However, the control group received a kind of traditional instruction. In other words, the control group used the idioms in their writing without receiving any comments and delivered it to their teacher to be scored. The treatment lasted for 10 sessions and a post-test was administered in the end. Independent samples t-tests were used to analyze the data gathered from the pretests and the posttest. The findings indicated that there was a statistically significant difference between the two groups in terms of idioms and portfolio was found to be able to improve students’ knowledge of idioms. The results of this study have some implications for teaching and learning idioms.

  9. Portfolio assessment during medical internships: How to obtain a reliable and feasible assessment procedure?

    Science.gov (United States)

    Michels, Nele R M; Driessen, Erik W; Muijtjens, Arno M M; Van Gaal, Luc F; Bossaert, Leo L; De Winter, Benedicte Y

    2009-12-01

    A portfolio is used to mentor and assess students' clinical performance at the workplace. However, students and raters often perceive the portfolio as a time-consuming instrument. In this study, we investigated whether assessment during medical internship by a portfolio can combine reliability and feasibility. The domain-oriented reliability of 61 double-rated portfolios was measured, using a generalisability analysis with portfolio tasks and raters as sources of variation in measuring the performance of a student. We obtained reliability (Phi coefficient) of 0.87 with this internship portfolio containing 15 double-rated tasks. The generalisability analysis showed that an acceptable level of reliability (Phi = 0.80) was maintained when the amount of portfolio tasks was decreased to 13 or 9 using one and two raters, respectively. Our study shows that a portfolio can be a reliable method for the assessment of workplace learning. The possibility of reducing the amount of tasks or raters while maintaining a sufficient level of reliability suggests an increase in feasibility of portfolio use for both students and raters.

  10. The Feasibility of Assessing Teenagers' Oral English Language Performance with a Rubric (La viabilidad de evaluar el desempeño oral de los adolescentes en inglés con una rúbrica)

    Science.gov (United States)

    Pineda, Diana

    2014-01-01

    This article reports the experience of a study group in a public university in Colombia, formed mostly by academic coordinators who worked in the design of assessment rubrics. Its focus is on the experience of the academic coordinator of the English program for teenagers, who concentrated on implementing the rubric to assess the students' oral…

  11. Introducing Rubrics to Physical Education Teacher Candidates

    Science.gov (United States)

    Shaw, Gerard F.

    2014-01-01

    The importance of using rubrics as an assessment tool has been well established. Rubrics communicate to students what is expected of them, scaffold learning, provide feedback to students and teachers concerning the teaching-learning process, and allow teachers and students to self- and peer-assess. They also help teachers evaluate consistently and…

  12. Implementing Portfolio Assessment in Lower-Secondary School

    Directory of Open Access Journals (Sweden)

    Anna Czura

    2013-05-01

    Full Text Available Since alternative assessment embraces highly authentic tasks consistent with classroom goals and instruction, its implementation in the language classroom is believed to promote collaboration with peers, transfer responsibility to the learners and, consequently, foster learner autonomy. This paper presents the results of a research study aiming to determine whether portfolio assessment contributes to the development of autonomy in adolescent learners. In order to collect the data, qualitative and quantative methods of research were applied. The research results reveal that the implementation of portfolio assessment failed to affect the overall level of learner autonomy. Introducing one selected pedagogical procedure does not suffice to foster learner autonomy. Teachers need to be ready to pass a portion of their authority to the learners, who, in turn, need to know how to use the new privileges judiciously.

  13. Holistic rubric vs. analytic rubric for measuring clinical performance levels in medical students.

    Science.gov (United States)

    Yune, So Jung; Lee, Sang Yeoup; Im, Sun Ju; Kam, Bee Sung; Baek, Sun Yong

    2018-06-05

    Task-specific checklists, holistic rubrics, and analytic rubrics are often used for performance assessments. We examined what factors evaluators consider important in holistic scoring of clinical performance assessment, and compared the usefulness of applying holistic and analytic rubrics respectively, and analytic rubrics in addition to task-specific checklists based on traditional standards. We compared the usefulness of a holistic rubric versus an analytic rubric in effectively measuring the clinical skill performances of 126 third-year medical students who participated in a clinical performance assessment conducted by Pusan National University School of Medicine. We conducted a questionnaire survey of 37 evaluators who used all three evaluation methods-holistic rubric, analytic rubric, and task-specific checklist-for each student. The relationship between the scores on the three evaluation methods was analyzed using Pearson's correlation. Inter-rater agreement was analyzed by Kappa index. The effect of holistic and analytic rubric scores on the task-specific checklist score was analyzed using multiple regression analysis. Evaluators perceived accuracy and proficiency to be major factors in objective structured clinical examinations evaluation, and history taking and physical examination to be major factors in clinical performance examinations evaluation. Holistic rubric scores were highly related to the scores of the task-specific checklist and analytic rubric. Relatively low agreement was found in clinical performance examinations compared to objective structured clinical examinations. Meanwhile, the holistic and analytic rubric scores explained 59.1% of the task-specific checklist score in objective structured clinical examinations and 51.6% in clinical performance examinations. The results show the usefulness of holistic and analytic rubrics in clinical performance assessment, which can be used in conjunction with task-specific checklists for more efficient

  14. Improving workplace-based assessment and feedback by an E-portfolio enhanced with learning analytics

    NARCIS (Netherlands)

    van der Schaaf, Marieke; Donkers, Jeroen; Slof, Bert; Moonen-van Loon, Joyce; van Tartwijk, Jan; Driessen, Eric; Badii, Atta; Serban, Ovidiu; Ten Cate, Olle

    Electronic portfolios (E-portfolios) are crucial means for workplace-based assessment and feedback. Although E-portfolios provide a useful approach to view each learner’s progress, so far options for personalized feedback and potential data about a learner’s performances at the workplace often

  15. Improving Workplace-Based Assessment and Feedback by an E-Portfolio Enhanced with Learning Analytics

    Science.gov (United States)

    van der Schaaf, Marieke; Donkers, Jeroen; Slof, Bert; Moonen-van Loon, Joyce; van Tartwijk, Jan; Driessen, Eric; Badii, Atta; Serban, Ovidiu; Ten Cate, Olle

    2017-01-01

    Electronic portfolios (E-portfolios) are crucial means for workplace-based assessment and feedback. Although E-portfolios provide a useful approach to view each learner's progress, so far options for personalized feedback and potential data about a learner's performances at the workplace often remain unexploited. This paper advocates that…

  16. From Process to Outcome: The Effect of Portfolio Assessment on Student Learning.

    Science.gov (United States)

    Tiwari, Agnes; Tang, Catherine

    2003-01-01

    Three findings emerged from 12 Hong Kong student nurses' descriptions of their experiences of portfolio assessment: (1) despite initial anxiety, all favored portfolio use; (2) portfolios had positive academic and affective outcomes; and (3) unexpectedly, spontaneous collaborative learning and increased motivation resulted. (Contains 35…

  17. Design and Validation of a Rubric to Assess the Use of American Psychological Association Style in Scientific Articles

    Science.gov (United States)

    Merma Molina, Gladys; Peña Alfaro, Hilda; Peña Alfaro González, Silvia Rosa

    2017-01-01

    In this study, the researchers will explore the process of designing and validating a rubric to evaluate the adaptation of scientific articles in the format of the "American Psychological Association" (APA). The rubric will evaluate certain aspects of the APA format that allow authors, editors, and evaluators to decide if the scientific…

  18. A Framework for Assessment of Aviation Safety Technology Portfolios

    Science.gov (United States)

    Jones, Sharon M.; Reveley, Mary S.

    2014-01-01

    The programs within NASA's Aeronautics Research Mission Directorate (ARMD) conduct research and development to improve the national air transportation system so that Americans can travel as safely as possible. NASA aviation safety systems analysis personnel support various levels of ARMD management in their fulfillment of system analysis and technology prioritization as defined in the agency's program and project requirements. This paper provides a framework for the assessment of aviation safety research and technology portfolios that includes metrics such as projected impact on current and future safety, technical development risk and implementation risk. The paper also contains methods for presenting portfolio analysis and aviation safety Bayesian Belief Network (BBN) output results to management using bubble charts and quantitative decision analysis techniques.

  19. The process of developing a rubric to assess the cognitive complexity of student-generated multiple choice questions in medical education

    Directory of Open Access Journals (Sweden)

    Rebecca Grainger

    2018-05-01

    Full Text Available Cognitively complex assessments encourage students to prepare using deep learning strategies rather than surface learning, recall-based ones. In order to prepare such assessment tasks, it is necessary to have some way of measuring cognitive complexity. In the context of a student-generated MCQ writing task, we developed a rubric for assessing the cognitive complexity of MCQs based on Bloom’s taxonomy. We simplified the six-level taxonomy into a three-level rubric. Three rounds of moderation and rubric development were conducted, in which 10, 15 and 100 randomly selected student-generated MCQs were independently rated by three academic staff. After each round of marking, inter-rater reliability was calculated, qualitative analysis of areas of agreement and disagreement was conducted, and the markers discussed the cognitive processes required to answer the MCQs. Inter-rater reliability, defined by the intra-class correlation coefficient, increased from 0.63 to 0.94, indicating the markers rated the MCQs consistently. The three-level rubric was found to be effective for evaluating the cognitive complexity of MCQs generated by medical students.

  20. Flightdeck Automation Problems (FLAP) Model for Safety Technology Portfolio Assessment

    Science.gov (United States)

    Ancel, Ersin; Shih, Ann T.

    2014-01-01

    NASA's Aviation Safety Program (AvSP) develops and advances methodologies and technologies to improve air transportation safety. The Safety Analysis and Integration Team (SAIT) conducts a safety technology portfolio assessment (PA) to analyze the program content, to examine the benefits and risks of products with respect to program goals, and to support programmatic decision making. The PA process includes systematic identification of current and future safety risks as well as tracking several quantitative and qualitative metrics to ensure the program goals are addressing prominent safety risks accurately and effectively. One of the metrics within the PA process involves using quantitative aviation safety models to gauge the impact of the safety products. This paper demonstrates the role of aviation safety modeling by providing model outputs and evaluating a sample of portfolio elements using the Flightdeck Automation Problems (FLAP) model. The model enables not only ranking of the quantitative relative risk reduction impact of all portfolio elements, but also highlighting the areas with high potential impact via sensitivity and gap analyses in support of the program office. Although the model outputs are preliminary and products are notional, the process shown in this paper is essential to a comprehensive PA of NASA's safety products in the current program and future programs/projects.

  1. Use of an Analytical Grading Rubric for Self-Assessment: A Pilot Study for a Periodontal Oral Competency Examination in Predoctoral Dental Education.

    Science.gov (United States)

    Satheesh, Keerthana M; Brockmann, Lorraine B; Liu, Ying; Gadbury-Amyot, Cynthia C

    2015-12-01

    While educators agree that using self-assessment in education is valuable, a major challenge is the poor agreement often found between faculty assessment and student self-assessment. The aim of this study was to determine if use of a predefined grading rubric would improve reliability between faculty and dental student assessment on a periodontal oral competency examination. Faculty members used the grading rubric to assess students' performance on the exam. Immediately after taking the exam, students used the same rubric to self-assess their performance on it. Data were collected from all third- and/or fourth-year students in four classes at one U.S. dental school from 2011 to 2014. Since two of the four classes took the exam in both the third and fourth years, those data were compared to determine if those students' self-assessment skills improved over time. Statistical analyses were performed to determine agreement between the two faculty graders and between the students' and faculty assessments on each criterion in the rubric and the overall grade. Data from the upper and lower performing quartiles of students were sub-analyzed. The results showed that faculty reliability for the overall grades was high (K=0.829) and less so for individual criteria, while student-faculty reliability was weak to moderate for both overall grades (Spearman's rho=0.312) and individual criteria. Students in the upper quartile self-evaluated themselves more harshly than the faculty (p<0.0001), while the lower quartile students overestimated their performance (p=0.0445) compared to faculty evaluation. No significant improvement was found in assessment over time in the students who took the exam in the third and fourth years. This study found only limited support for the hypothesis that a grading rubric used by both faculty and students would increase correspondence between faculty and student assessment and points to a need to reexamine the rubric and instructional strategies to help

  2. Revising an Engineering Design Rubric: A Case Study Illustrating Principles and Practices to Ensure Technical Quality of Rubrics

    Directory of Open Access Journals (Sweden)

    Gail Lynn Goldberg

    2014-08-01

    Full Text Available This article provides a detailed account of a rubric revision process to address seven common problems to which rubrics are prone: lack of consistency and parallelism; the presence of - orphan- and - widow- words and phrases; redundancy in descriptors; inconsistency in the focus of qualifiers; limited routes to partial credit; unevenness in incremental levels of performance; and inconsistencies across suites or sets of related rubrics. The author uses examples from both the draft stage precursor and the first revised (pilot version of the Engineering Design Process Portfolio Scoring Rubric (EDPPSR, to illustrate the application of broadly relevant guidelines that can inform the creation of a new-'or revision of an existing-'rubric to achieve technical quality while preserving content integrity

  3. Design and Validation of a Rubric to Assess the Use of American Psychological Association Style in scientific articles

    Directory of Open Access Journals (Sweden)

    Gladys Merma Molina

    2017-01-01

    Full Text Available In this study, the researchers will explore the process of designing and validating a rubric to evaluate the adaptation of scientific articles in the format of the American Psychological Association (APA. The rubric will evaluate certain aspects of the APA format that allow authors, editors, and evaluators to decide if the scientific article is coherent with these rules. Overall, the rubric will concentrate on General Aspects of the article and on the Citation System. To do this, 10 articles that were published within 2012-2016 and included in the Journal Citation Report will be analyzed using technical expertise. After doing 5 pilot studies, the results showed the validity and the reliability of the instrument. Furthermore, the process showed the evidence of the possibilities of the rubric to contribute to uniform criteria that can be used as a didactic tool in different scenarios.

  4. Impact of Portfolio Assessment on Physics Students' Outcomes: Examination of Learning and Attitude

    Science.gov (United States)

    Gunay, Abdulkadir; Ogan-Bekiroglu, Feral

    2014-01-01

    In spite of the commendations for the use of portfolio assessment, there is still little evidence indicating that such assessment actually supports and encourages student learning. Hence, this research study aimed to empirically identify the effects of implementation of portfolio assessment on student learning and attitudes. True-experimental…

  5. Filling the assessment gap: using a learning portfolio in international development courses.

    Science.gov (United States)

    Omar, Mayeh Abu

    2006-01-01

    The purpose of this research is to describe an action research project that proposed, monitored and evaluated the introduction of a learning portfolio used to replace examinations that were formerly used to assess the core courses. An action research project was undertaken to find out whether the introduction of a portfolio was successful and what could be improved in the process of its implementation. The findings indicate that portfolios are effective to support and assess the academic development of international students. The introduction of a portfolio to replace written examinations in the NCIHD was welcomed by all concerned.

  6. Self-Evaluated Effects of Web-Based Portfolio Assessment System for Various Student Motivation Levels

    Science.gov (United States)

    Chang, Chi-Cheng

    2009-01-01

    The purpose of this study was to explore the self-evaluated effects of a web-based portfolio assessment system on various categories of students of motivation. The subjects for this study were the students of two computer classes in a Junior High School. The experimental group used the web-based portfolio assessment system whereas the control…

  7. Assessment of teacher competence using video portfolios: reliability, construct validity and consequential validity

    NARCIS (Netherlands)

    Admiraal, W.; Hoeksma, M.; van de Kamp, M.-T.; van Duin, G.

    2011-01-01

    The richness and complexity of video portfolios endanger both the reliability and validity of the assessment of teacher competencies. In a post-graduate teacher education program, the assessment of video portfolios was evaluated for its reliability, construct validity, and consequential validity.

  8. Portfolio as a learning strategy and a tool for assessment - a Danish experience

    DEFF Research Database (Denmark)

    Mogensen, Arne

    A short presentation of some Danish expereriences using portfolio in maths teaching in primary and lower secondary schools as a learning strategy AND a tool for assessment.......A short presentation of some Danish expereriences using portfolio in maths teaching in primary and lower secondary schools as a learning strategy AND a tool for assessment....

  9. Fostering EFL learners’ autonomy in light of portfolio assessment: Exploring the potential impact of gender

    Directory of Open Access Journals (Sweden)

    Mahmood Hashemian

    2013-07-01

    Full Text Available The purpose of this study was to investigate the impact of portfolio assessment as a process-oriented mechanism on the autonomy of Iranian advanced EFL learners. A particular concern was to examine the potential effect of gender on portfolio assessment by taking the learners’ writing ability into account. The participants were 80 male and female advanced EFL learners to whom the Learner Autonomy Questionnaire (Kashefian, 2002 was administered to check their homogeneity prior to the study in terms of autonomy; a truncated form of a TOEFL test was also given to the participants to assess their language proficiency. The participants were then randomly divided into 4 groups: 2 experimental groups (20 females in class A and 20 males in class B and 2 control groups (20 females in class C and 20 males in class D. The portfolio assessment was integrated into the experimental groups to explore whether and to what extent their autonomy might enhance and also to investigate the possible effect of gender on portfolio assessment in writing ability. The portfolio assessment was based on the classroom portfolio model adopted from Hamp-Lyons and Condon (2000, consisting of 3 procedures: collection, selection, and reflection. In contrast, the control groups received the traditional assessment of writing. The data were analyzed using 2 independent samples t tests, mean, and the effect size. The results showed that the portfolio procedures considerably improved the autonomy of the participants. Also, gender had no impact on portfolio assessment.

  10. Evaluation of the probabilistic safety assessment portfolio for NSD. Plan of work

    International Nuclear Information System (INIS)

    Gould, J.

    1999-01-01

    The aim is to use the research portfolio evaluation protocol developed by HSL to evaluate the Probabilistic Safety Assessment (PSA) portfolio, both to draw conclusions about the PSA portfolio and as a pilot study to show the suitability of the evaluation protocol. The objectives of the work are: (1) To collect sufficient information to carry out a preliminary review of the portfolio; (2) o produce a plan of work detailing the time and costs to carry out a full evaluation of the PSA portfolio; (3) to evaluate the PSA portfolio of research; (4) to produce a report of the evaluation of the PSA portfolio; (5) if necessary, to make changes to the methodology in light of the experience gained in the evaluation of the PSA research portfolio. This report completes objectives 1 and 2. It details the plan of work for the evaluation of the PSA research portfolio. The plan has shown that the evaluation of the PSA research portfolio has many difficulties to overcome. It is suitable as a pilot study to show the suitability of the portfolio evaluation protocol and will provide valuable information that can be used to improve it. The evaluation of the PSA portfolio will require a considerable amount of time and effort to complete. The task analysis has shown it to be of the order of Pound Sterling 25k and to take two months to complete after this preliminary data collection. The plan to evaluate the PSA research portfolio detailed in this report should be carried out and the lessons learned by carrying out this pilot study should be used to improve the evaluation protocol

  11. E-PORTFOLIO: BEYOND ASSESSMENT FOR ENGLISH STUDENT TEACHER (a Preliminary Study of E-portfolio Implementation in Micro Teaching Class)

    OpenAIRE

    Sarlita D. Matra

    2017-01-01

    Teacher preparation programs across the country are showing an increased interest in the use of electronic portfolios as valuable authentic assessment tools that can document students‘ abilities and growth related to specific standards. The concept of developing e-portfolios is based on the fact that the reflective practice of creating portfolios enables students to document and track their learning; develop an integrated, coherent picture of their learning experiences; and enhanc...

  12. Is Learner Self-Assessment Reliable and Valid in a Web-Based Portfolio Environment for High School Students?

    Science.gov (United States)

    Chang, Chi-Cheng; Liang, Chaoyun; Chen, Yi-Hui

    2013-01-01

    This study explored the reliability and validity of Web-based portfolio self-assessment. Participants were 72 senior high school students enrolled in a computer application course. The students created learning portfolios, viewed peers' work, and performed self-assessment on the Web-based portfolio assessment system. The results indicated: 1)…

  13. Initial Opposition--Won't Portfolio Assessment Take Away Teacher Autonomy?

    Science.gov (United States)

    Dickson, Marcia

    Unacknowledged and untended opposition can lead the "resistance" to destroy even the best planned of portfolio systems. The greatest cause of initial resistance to portfolio assessment is the fear that teachers will lose their autonomy and/or authority in the classroom. Writing instructors need to ask themselves about issues of control and…

  14. Dilemmas Faced Establishing Portfolio Assessment of Pre-Service Teachers in the Southeastern United States

    Science.gov (United States)

    Van Sickle, Meta; Bogan, Margaret B.; Kamen, Michael; Baird, William; Butcher, Carolyn

    2005-01-01

    There is increasing pressure to evaluate and document the capabilities of students exiting teacher education programs. A professional portfolio can serve as an effective tool for documenting this process. Faculty wishing to institute portfolios in pre-service teacher assessment should be aware of the difficulties that arise during discourse and…

  15. Integrated Sociology Program Assessment: Inclusion of a Senior Portfolio Graduation Requirement

    Science.gov (United States)

    Crockett, Jason L.; Fu, Albert S.; Greenwood, Joleen L.; John, Mauricia A.

    2018-01-01

    This article presents information about the planning, implementation, and findings of an assessment-based student portfolio designed by the faculty of a sociology program at Kutztown University of Pennsylvania, a midsized public regional liberal arts institution. First, we briefly present the rationale for implementing a portfolio system and the…

  16. Using the Teaching Portfolio to Anticipate Programmatic Assessment

    Science.gov (United States)

    Price, Kenneth R.

    2013-01-01

    Portfolios have long been a staple in professional writing courses: both in employment materials assignments and in entire classes that ask students to reflect on their experiential learning. Portfolios may also be used effectively in business communication teaching methods courses. This article details the justification and methodology for having…

  17. Fifteen years of portfolio assessment of dental hygiene student competency: lessons learned.

    Science.gov (United States)

    Gadbury-Amyot, Cynthia C; Bray, Kimberly Krust; Austin, Kylie J

    2014-10-01

    Adoption of portfolio assessment in the educational environment is gaining attention as a means to incorporate self-assessment into the curriculum and to use evidence to support learning outcomes and to demonstrate competency. Portfolios provide a medium for students to demonstrate and document their personal and professional growth across the curriculum. The purpose of this literature review is to discuss the drivers for portfolio education, the benefits to both students and program faculty/administrators, the barriers associated with portfolio use, and suggested solutions that have been determined through several years of "lessons learned." The University of Missouri Kansas City School of Dentistry, Division of Dental Hygiene department has been utilizing portfolio assessment for over 15 years and has collected data related to portfolio performance since 2001. Results from correlational statistics calculated on the 312 dental hygiene students that graduated from 2001 to 2013 demonstrate a positive and significant relationship between portfolio performance and overall GPA as well as portfolio performance and NBDHE scores. Copyright © 2014 The American Dental Hygienists’ Association.

  18. Probabilistic disaggregation of a spatial portfolio of exposure for natural hazard risk assessment

    DEFF Research Database (Denmark)

    Custer, Rocco; Nishijima, Kazuyoshi

    2018-01-01

    In natural hazard risk assessment situations are encountered where information on the portfolio of exposure is only available in a spatially aggregated form, hindering a precise risk assessment. Recourse might be found in the spatial disaggregation of the portfolio of exposure to the resolution...... of a portfolio of buildings in two communes in Switzerland and the results are compared to sample observations. The relevance of probabilistic disaggregation uncertainty in natural hazard risk assessment is illustrated with the example of a simple flood risk assessment....

  19. Developing an Information Literacy Assessment Rubric: A Case Study of Collaboration, Process, and Outcomes

    Science.gov (United States)

    Gola, Christina H.; Ke, Irene; Creelman, Kerry M.; Vaillancourt, Shawn P.

    2014-01-01

    A team of four librarians at the University of Houston (UH) Libraries partnered with the UH Office of Institutional Effectiveness and its Director of Assessment and Accreditation Services for General Education to conduct a campus-wide, exploratory assessment of undergraduate information literacy skills. The project evaluated a selection of…

  20. The feasibility and acceptability of using a portfolio to assess professional competence.

    Science.gov (United States)

    Miller, Patricia A; Tuekam, Rosine

    2011-01-01

    Little is known about physical therapists' views on the use of portfolios to evaluate professional competence. The purpose of this study was to gather the opinions of physical therapists on the feasibility and acceptability of a portfolio prepared to demonstrate evidence of clinical specialization through reported activities and accomplishments related to professional development, leadership, and research. Twenty-nine Canadian physical therapists practising in the neurosciences area were given 8 weeks to prepare a professional portfolio. Participants submitted the portfolio along with a survey addressing the preparation of the portfolio and its role as an assessment tool. Qualitative content analysis was used to interpret the participants' comments. Participants reported that maintaining organized records facilitated the preparation of their portfolio. They experienced pride when reviewing their completed portfolios, which summarized their professional activities and highlighted their achievements. Concerns were noted about the veracity of self-reported records and the ability of the documentation to provide a comprehensive view of the full scope of the professional competencies required for clinical specialization (e.g., clinical skills). The study's findings support the feasibility and acceptability of a portfolio review to assess professional competence and clinical specialization in physical therapy and have implications for both physical therapists and professional agencies.

  1. Decision Gate Process for Assessment of a Technology Development Portfolio

    Science.gov (United States)

    Kohli, Rajiv; Fishman, Julianna; Hyatt, Mark

    2012-01-01

    The NASA Dust Management Project (DMP) was established to provide technologies (to TRL 6 development level) required to address adverse effects of lunar dust to humans and to exploration systems and equipment, which will reduce life cycle cost and risk, and will increase the probability of sustainable and successful lunar missions. The technology portfolio of DMP consisted of different categories of technologies whose final product is either a technology solution in itself, or one that contributes toward a dust mitigation strategy for a particular application. A Decision Gate Process (DGP) was developed to assess and validate the achievement and priority of the dust mitigation technologies as the technologies progress through the development cycle. The DGP was part of continuous technology assessment and was a critical element of DMP risk management. At the core of the process were technology-specific criteria developed to measure the success of each DMP technology in attaining the technology readiness levels assigned to each decision gate. The DGP accounts for both categories of technologies and qualifies the technology progression from technology development tasks to application areas. The process provided opportunities to validate performance, as well as to identify non-performance in time to adjust resources and direction. This paper describes the overall philosophy of the DGP and the methodology for implementation for DMP, and describes the method for defining the technology evaluation criteria. The process is illustrated by example of an application to a specific DMP technology.

  2. An Assessment of Air Force Development Portfolio Management Practices

    National Research Council Canada - National Science Library

    Greiner, Michael A; Dooley, Kevin J; Shunk, Dan L; McNutt, Ross T

    2002-01-01

    .... Decision makers must weigh benefits, costs, and mission needs for a variety of proposed new initiatives and current weapon systems programs to develop an effective portfolio that provides the best value to the user...

  3. Assessing the costs and benefits of US renewable portfolio standards

    Science.gov (United States)

    Wiser, Ryan; Mai, Trieu; Millstein, Dev; Barbose, Galen; Bird, Lori; Heeter, Jenny; Keyser, David; Krishnan, Venkat; Macknick, Jordan

    2017-09-01

    Renewable portfolio standards (RPS) exist in 29 US states and the District of Columbia. This article summarizes the first national-level, integrated assessment of the future costs and benefits of existing RPS policies; the same metrics are evaluated under a second scenario in which widespread expansion of these policies is assumed to occur. Depending on assumptions about renewable energy technology advancement and natural gas prices, existing RPS policies increase electric system costs by as much as 31 billion, on a present-value basis over 2015-2050. The expanded renewable deployment scenario yields incremental costs that range from 23 billion to 194 billion, depending on the assumptions employed. The monetized value of improved air quality and reduced climate damages exceed these costs. Using central assumptions, existing RPS policies yield 97 billion in air-pollution health benefits and 161 billion in climate damage reductions. Under the expanded RPS case, health benefits total 558 billion and climate benefits equal 599 billion. These scenarios also yield benefits in the form of reduced water use. RPS programs are not likely to represent the most cost effective path towards achieving air quality and climate benefits. Nonetheless, the findings suggest that US RPS programs are, on a national basis, cost effective when considering externalities.

  4. The Impact of Library Tutorials on the Information Literacy Skills of Occupational Therapy and Physical Therapy Students in an Evidence-Based Practice Course: A Rubric Assessment.

    Science.gov (United States)

    Schweikhard, April J; Hoberecht, Toni; Peterson, Alyssa; Randall, Ken

    2018-01-01

    This study measures how online library instructional tutorials implemented into an evidence-based practice course have impacted the information literacy skills of occupational and physical therapy graduate students. Through a rubric assessment of final course papers, this study compares differences in students' search strategies and cited sources pre- and post-implementation of the tutorials. The population includes 180 randomly selected graduate students from before and after the library tutorials were introduced into the course curriculum. Results indicate a statistically significant increase in components of students' searching skills and ability to find higher levels of evidence after completing the library tutorials.

  5. Methodical approaches to assessment of quality of the bank loan portfolio

    Directory of Open Access Journals (Sweden)

    Tysyachna Yunna S.

    2014-01-01

    Full Text Available The goal of the article lies in the study of basic methodical approaches to assessment of the quality of the bank loan portfolio, identification of specific features of their practical application and justification of selection of the most appropriate for the modern economic conditions. The article considers three main groups of methods of assessment of the quality of the bank loan portfolio: expert evaluation methods and statistical and analytical methods. It goes without saying that in order to obtain an objective assessment of quality of the bank loan portfolio it is necessary to apply a complex approach, however, due to some advantages and shortcomings of the studied methods, the author marks expediency of building an integral indicator, taxonomic in particular, in order to obtain a complex, objective and efficient assessment of the bank loan portfolio. Prospects of further studies in this direction are assessment of the quality of the loan portfolio of the first group banks by the size of their assets through building integral taxonomic indicators and identification, on this basis, of factors that influence the quality of the loan portfolio with the aim of improvement of the mechanism of management of the bank lending activity.

  6. The Writing Portfolio: an alternative assessment tool with young learners of English

    Directory of Open Access Journals (Sweden)

    Melpomeni Barabouti

    2012-02-01

    Full Text Available This paper presents the implementation of a portfolio for assessment purposes, with a group of primary school learners of English, aged 11-12. The focus of the portfolio is specific, concentrating on a purposeful and systematic collection of samples of students’ written language. The paper explores theories on portfolios as an alternative method of assessment and the benefits deriving from their use in the classroom. Moreover, it analyses all the stages of the organization of the learner portfolios from beginning to end. The findings shed light not only on positive outcomes but also possible problems. The paper discusses the implications of the study for classroom practice and provides suggestions for further experimentation.

  7. Assessing the Development of Medical Students' Personal and Professional Skills by Portfolio.

    Science.gov (United States)

    Yielder, Jill; Moir, Fiona

    2016-01-01

    The introduction of a new domain of learning for Personal and Professional Skills in the medical program at the University of Auckland in New Zealand has involved the compilation of a portfolio for assessment. This departure from the traditional assessment methods predominantly used in the past has been challenging to design, introduce, and maintain as a relevant and authentic assessment method. We present the portfolio format along with the process for its introduction and appraise the challenges, strengths, and limitations of the approach within the context of the current literature. We then outline a cyclical model of evaluation used to monitor and fine-tune the portfolio tasks and implementation process, in response to student and assessor feedback. The portfolios have illustrated the level of insight, maturity, and synthesis of personal and professional qualities that students are capable of achieving. The Auckland medical program strives to foster these qualities in its students, and the portfolio provides an opportunity for students to demonstrate their reflective abilities. Moreover, the creation of a Personal and Professional Skills domain with the portfolio as its key assessment emphasizes the importance of reflective practice and personal and professional development and gives a clear message that these are fundamental longitudinal elements of the program.

  8. Assessing the Development of Medical Students’ Personal and Professional Skills by Portfolio

    Science.gov (United States)

    Yielder, Jill; Moir, Fiona

    2016-01-01

    The introduction of a new domain of learning for Personal and Professional Skills in the medical program at the University of Auckland in New Zealand has involved the compilation of a portfolio for assessment. This departure from the traditional assessment methods predominantly used in the past has been challenging to design, introduce, and maintain as a relevant and authentic assessment method. We present the portfolio format along with the process for its introduction and appraise the challenges, strengths, and limitations of the approach within the context of the current literature. We then outline a cyclical model of evaluation used to monitor and fine-tune the portfolio tasks and implementation process, in response to student and assessor feedback. The portfolios have illustrated the level of insight, maturity, and synthesis of personal and professional qualities that students are capable of achieving. The Auckland medical program strives to foster these qualities in its students, and the portfolio provides an opportunity for students to demonstrate their reflective abilities. Moreover, the creation of a Personal and Professional Skills domain with the portfolio as its key assessment emphasizes the importance of reflective practice and personal and professional development and gives a clear message that these are fundamental longitudinal elements of the program. PMID:29349315

  9. The use of portfolios for continuing assessment of physiotherapy students in clinical practice settings

    Directory of Open Access Journals (Sweden)

    N. Naidoo

    2004-01-01

    Full Text Available Many and varied methods of assessment are used to evaluate undergraduate physiotherapy students. Different modes of assessment occur as a result of contrasting educational theories and because the purpose of assessment is variable. In this era of performance assessment related to  the students’ mastery of the core curriculum, portfolios can enhance the assessment process by revealing a range of skills and understandings. This fits snugly into the physiotherapy curriculum for undergraduate continuous assessment purposes. Portfolio assessment can facilitate more reflection on students’ learning, more ownership of learning and more awareness of self-development. This supports the South African Qualifications Authority’s objective for higher education of reflection and life-long learning in our students. This article presents discussion on the use of portfolios in physiotherapy student learning and assessment in clinical practice.

  10. Crossing the Rubric-Con

    Science.gov (United States)

    Bailey, James R.

    2014-01-01

    This essay engages the prospect and peril of employing rubrics in America. It discusses how institutional independence affects the enterprise, and addresses whether rubrics will be received as salvation or subservience by educational agents. It asks how rubrics can benefit stakeholders while examining their unintended consequences. It concludes by…

  11. Rubrics and the enhancement of student learning

    Directory of Open Access Journals (Sweden)

    Malini Y Reddy

    2007-06-01

    Full Text Available Empirical research on the effectiveness of rubrics has primarily concentrated on its contribution towards improvement in academic performance, as reflected in attainment of higher grades. Its role in assessing the other dimensions of SL such as attitudes, behaviors and perceptions that affect students’ inclination and ability to learn has been largely unexplored. There is also a paucity of literature on how the tool can be used for informing course delivery and course design. The objectives of the study are derived from these gaps in literature. The proposed study seeks to explore the usefulness of rubrics from the perspective of students, drawing motivation from two recent studies – the study by Andrade & Du (2005, which examined the usage of rubrics by students to support their own learning and academic performance and the study by Petkov & Petkova(2006, which explored the possibility of developing curriculum wide rubrics at post-graduate level. This study intends to investigate the contribution of rubrics referenced feedback towards enhancement of motivation, development of self- regulation characteristics and improvement in academic performance. It seeks to achieve this by assessing student-learning outcomes in a multiple courses of general Masters in Business Administration (MBA program in two or more business schools in Hyderabad including, ICFAI Business School, Hyderabad.

  12. The Development and Test of the Public Speaking Competence Rubric

    Science.gov (United States)

    Schreiber, Lisa M.; Paul, Gregory D.; Shibley, Lisa R.

    2012-01-01

    In response to the demand for increased accountability within the university classroom, there have been calls for a new generation of rubrics that effectively assess students' competence in several areas, including public speaking. This article describes the development, test, and factor analyses of the Public Speaking Competence Rubric (PSCR), an…

  13. Analytical Rubrics in Higher Education: A Repository of Empirical Data

    Science.gov (United States)

    Hack, Catherine

    2015-01-01

    The use of rubrics for grading and feedback in higher education has increased in response to requirements for consistency and transparency across a diverse range of assessment tasks. There is a growing evidence base demonstrating the reliability of rubrics across different markers and instances. The number of studies describing the impact of…

  14. EFFECT OF USING PORTFOLIO ASSESSMENT TO IMPROVE SCIENTIFIC ATTITUDE OF STUDENTS LEARNING PHYSICS IN HIGH SCHOOL

    Directory of Open Access Journals (Sweden)

    Gede Wartawan Putu

    2018-01-01

    Full Text Available This study aims to investigate the effect of portfolio assessment in teaching physics and scientific attitude. The research was conducted on students of high school in Singaraja. Research was an quasi- experimental study by using “The Posttest-Only Control Group Design”. The research involved 152 high school students of class X of science as samples, taken with multistage random sampling technique. Portfolio assessment was integrated with physics learning. The implementation of the portfolio assessment included four key elements such as the students' work folders, clear assessment criteria, and self-assessment, and conference between teacher and students. The data needed in this research was the students' scientific attitude which included the aspect of curiosity, respect for evidence, the willingness to change ideas, and critical reflection. Data needed in this research included scientific attitudes students. A Likert scale instrument was used to measure the scientific attitude students. Data were analyzed using analysis of variance with SPSS 20.0 at significance level α = 0.05. The results showed there are differences in the scientific attitude students who take physics learning with assessment portfolios and students who take physics learning with assessment of conventional. The findings of this study indicate that portfolio assessment in learning physics significantly affect the scientific attitude students.

  15. EFFECT OF USING PORTFOLIO ASSESSMENT TO IMPROVE SCIENTIFIC ATTITUDE OF STUDENTS LEARNING PHYSICS IN HIGH SCHOOL

    Directory of Open Access Journals (Sweden)

    putu wartawan

    2017-12-01

    Full Text Available This study aims to investigate the effect of portfolio assessment in teaching physics and scientific attitude. The research was conducted on students of high school  in Singaraja. Research was an  quasi- experimental study by using  “The Posttest-Only Control Group Design”.  The research involved 152 high school students of class X of science as samples, taken with multistage random sampling technique. Portfolio assessment was integrated with physics learning. The implementation of the portfolio assessment included four key elements such as the students' work folders, clear assessment criteria, and self-assessment, and conference between teacher and students.  The data needed in this research was the students' scientific attitude which included the aspect of curiosity, respect for evidence, the willingness to change ideas, and critical reflection. Data needed in this research included scientific attitudes students.  A Likert scale instrument was used to measure the scientific attitude students.  Data were analyzed using  analysis of variance with SPSS 20.0 at significance level a = 0.05. The results showed there are differences in the scientific attitude students who take physics learning with assessment portfolios and students who take physics learning with assessment of conventional.  The findings of this study indicate that portfolio assessment in learning physics significantly affect the scientific attitude students.

  16. Examining portfolio-based assessment in an upper-level biology course

    Science.gov (United States)

    Ziegler, Brittany Ann

    Historically, students have been viewed as empty vessels and passive participants in the learning process but students actually are active forming their own conceptions. One way student learning is impacted is through assessment. Alternative assessment, which contrasts traditional assessment methods, takes into account how students learn by promoting engagement and construction of knowledge This dissertation explores portfolio-based assessment, a method of alternative assessment, which requires students to compose a purposeful collection of work demonstrating their knowledge in an upper-level biology course. The research objectives include characterizing and contributing to the understanding of portfolio-based assessment in higher education, examining reflection and inquiry portfolio components, determining student knowledge of biological concepts, and investigating student integrative thinking through the transformation of reflections into concept webs One main finding includes the majority of reflections categorized as naive or novice in quality. There was no difference in quality of reflections among biological topic. There was a relatively equal amount of high and low cognitive level questions. Students' knowledge of biological concepts significantly increased from the beginning to end of the course. Student written reflections were transformed into concept webs to allow for examination of student integrative thinking. Concepts, relationships, and interconnections in concept webs showed variation but declined by the end of the semester This study is one of the first examining portfolio-based assessment in an upper-level biology course We do not contend that this method of assessment is the only way to promote student learning but portfolio-based assessment may be a tool that can transform science education but currently the role of portfolio-based assessment in science education remains unclear. Additional research needs to be conducted before we will fully

  17. Initial Validation of a Technical Writing Rubric for Engineering Design

    Directory of Open Access Journals (Sweden)

    Cheryl Bodnar

    2018-02-01

    Full Text Available Engineering design serves as the capstone experience of most undergraduate engineering programs. One of the key elements of the engineering design process is the compilation of results obtained into a technical report that can be shared and distributed to interested stakeholders including industry, faculty members and other relevant parties. In an effort to expand the tools available for assessment of engineering design technical reports, this study performed an initial validation of a previously developed Technical Writing rubric. The rubric was evaluated for its reliability to measure the intended construct, inter-rater reliability and external validity in comparison to an existing generalized written communication rubric. It was found that the rubric was reliable with Cronbach’s alpha for all dimensions between 0.817 and 0.976. The inter-rater reliability for the overall instrument was also found to be excellent at 0.85. Finally, it was observed that there were no statistically significant differences observed between the measurements obtained on the Technical Writing rubric in comparison to the more generalized Written Communication Value rubric. This demonstrates that although specific to engineering design environments the Technical Writing rubric was able to measure key constructs associated with written communication practice. This rubric can now serve as one additional tool for assessment of communication skills within engineering capstone design experiences.

  18. Using Portfolio to Assess Rural Young Learners' Writing Skills in English Language Classroom

    Science.gov (United States)

    Aziz, Muhammad Noor Abdul; Yusoff, Nurahimah Mohd.

    2015-01-01

    This study aimed at discussing the benefits of portfolio assessment in assessing students' writing skills. The study explores the use of authentic assessment in the classroom. Eleven primary school children from Year 4 in a rural school in Sabah participated in this study. Data were collected by observing them during the English Language lessons…

  19. The relationship between students’ perceptions of portfolio assessment practice and their approaches to learning

    NARCIS (Netherlands)

    Segers, M.S.R.; Gijbels, D.; Thurlings, M.C.G.

    2008-01-01

    This study focuses on students’ learning approaches in the context of a competency-based program on Applied Sciences, with portfolio assessment as its core mode of assessment. The study examines students’ perceptions of these assessment practices and the relationships to their learning approaches.

  20. An electronic portfolio for quantitative assessment of surgical skills in undergraduate medical education.

    Science.gov (United States)

    Sánchez Gómez, Serafín; Ostos, Elisa María Cabot; Solano, Juan Manuel Maza; Salado, Tomás Francisco Herrero

    2013-05-06

    We evaluated a newly designed electronic portfolio (e-Portfolio) that provided quantitative evaluation of surgical skills. Medical students at the University of Seville used the e-Portfolio on a voluntary basis for evaluation of their performance in undergraduate surgical subjects. Our new web-based e-Portfolio was designed to evaluate surgical practical knowledge and skills targets. Students recorded each activity on a form, attached evidence, and added their reflections. Students self-assessed their practical knowledge using qualitative criteria (yes/no), and graded their skills according to complexity (basic/advanced) and participation (observer/assistant/independent). A numerical value was assigned to each activity, and the values of all activities were summated to obtain the total score. The application automatically displayed quantitative feedback. We performed qualitative evaluation of the perceived usefulness of the e-Portfolio and quantitative evaluation of the targets achieved. Thirty-seven of 112 students (33%) used the e-Portfolio, of which 87% reported that they understood the methodology of the portfolio. All students reported an improved understanding of their learning objectives resulting from the numerical visualization of progress, all students reported that the quantitative feedback encouraged their learning, and 79% of students felt that their teachers were more available because they were using the e-Portfolio. Only 51.3% of students reported that the reflective aspects of learning were useful. Individual students achieved a maximum of 65% of the total targets and 87% of the skills targets. The mean total score was 345 ± 38 points. For basic skills, 92% of students achieved the maximum score for participation as an independent operator, and all achieved the maximum scores for participation as an observer and assistant. For complex skills, 62% of students achieved the maximum score for participation as an independent operator, and 98% achieved

  1. The use of e-portfolio in a linear algebra course

    Directory of Open Access Journals (Sweden)

    María Isabel García-Planas

    2016-03-01

    Full Text Available The use of e-portfolio becomes more common learning and student assessment; and this is due to the need for teachers to enhance students’ autonomy. The use of e-portfolio helps students to reflect on their own learning process. Lectures to large groups should not be limited only to classes, but must foster active learning, and in this regard, the introduction of the e-portfolio is a good tool because it stimulates collaborative and cooperative work among students and in turn encourages feedback with the teacher. To apply active methodologies during 2014-15 has been introduced in the course of the preparation of Linear Algebra comprehensive e-portfolio. To prepare the work of the e-portfolio the teacher had to clearly define the objectives that must be achieved by the students, and has had to plan in an understandable manner the tasks that the students can work independently outside the classroom. For the realization of the e-portfolio have been used different platforms. Each third of the students worked with a different platform, through AteneaLabs that it has provided templates in order that each student make their own e-portfolio, as well as it provide all necessary manuals. The platforms used were: Mahara, Exabis, WordPress and Google Sites. Formative assessment of the e-portfolio has been made from different rubrics defined in in the course syllabus and known by students since the beginning of the course.

  2. The Dilemmas of Formulating Theory-Informed Design Guidelines for a Video Enhanced Rubric for the Formative Assessment of Complex Skills

    NARCIS (Netherlands)

    Ackermans, Kevin; Rusman, Ellen; Brand-Gruwel, Saskia; Specht, Marcus

    2017-01-01

    Learners aiming to master a complex skill may benefit from the combina-tion of abstract information found in a text-based analytical rubric and con-crete information provided by a video modeling example. In this paper, we address the design dilemmas of combining video modeling examples and rubrics

  3. The Dilemmas of Formulating Theory-Informed Design Guidelines for a Video Enhanced Rubric (for the Formative Assessment of Complex Skills)

    NARCIS (Netherlands)

    Ackermans, Kevin; Rusman, Ellen; Brand-Gruwel, Saskia; Specht, Marcus

    2017-01-01

    Learners aiming to master a complex skill may benefit from the combina-tion of abstract information found in a text-based analytical rubric and con-crete information provided by a video modeling example. In this paper, we address the design dilemmas of combining video modeling examples and rubrics

  4. Information Technology Project Portfolio and Strategy Alignment Assessment Based on Data Envelopment Analysis

    Directory of Open Access Journals (Sweden)

    Marisa Analía Sánchez

    2012-11-01

    Full Text Available Recent researches have shown that companies face considerable difficulties in assessing the strategy value contribution of Information Technology (IT investments. One of the major obstacles to achieving strategy alignment is that organizations find extremely difficult to link and quantify the IT investments benefits with strategic goals. The aim of this paper is to define an approach to assess portfolio-strategy alignment. To this end a formal specification of Kaplan and Norton Strategy Map is developed utilizing Unified Modeling Language (UML. The approach uses the Strategy Map as a framework for defining the portfolio value contribution and Data Envelopment Analysis (DEA is used as the methodology for measuring efficiency of project portfolios.DOI:10.5585/gep.v3i2.66

  5. Effect of portfolio assessment on student learning in prenatal training for midwives.

    Science.gov (United States)

    Kariman, Nourossadat; Moafi, Farnoosh

    2011-01-01

    The tendency to use portfolios for evaluation has been developed with the aim of optimizing the culture of assessment. The present study was carried out to determine the effect of using portfolios as an evaluation method on midwifery students' learning and satisfaction in prenatal practical training. In this prospective cohort study, all midwifery students in semester four (n=40), were randomly allocated to portfolio and routine evaluation groups. Based on their educational goals, the portfolio groups prepared packages which consisted of a complete report of the history, physical examinations, and methods of patient management (as evaluated by a checklist) for women who visited a prenatal clinic. During the last day of their course, a posttest, clinical exam, and student satisfaction form were completed. The two groups' mean age, mean pretest scores, and their prerequisite course that they should have taken in the previous semester were similar. The mean difference in the pre and post test scores for the two groups' knowledge and comprehension levels did not differ significantly (P>0.05). The average scores on questions in Bloom's taxonomy 2 and 3 of the portfolio group were significantly greater than those of the routine evaluation group (P=0.002, P=0.03, respectively). The mean of the two groups' clinical exam scores was significantly different. The portfolio group's mean scores on generating diagnostic and therapeutic solutions and the ability to apply theory in practice were higher than those of the routine group. Overall, students' satisfaction scores in the two evaluation methods were relatively similar. Portfolio evaluation provides the opportunity for more learning by increasing the student's participation in the learning process and helping them to apply theory in practice.

  6. Portfolio assessments for future generation investment in newly industrializing countries – A case study of Thailand

    International Nuclear Information System (INIS)

    Vithayasrichareon, Peerapat; MacGill, Iain F.

    2012-01-01

    This paper assesses future electricity generation portfolios in Thailand in 2030 given uncertain future fossil-fuel prices, carbon pricing policies, electricity demand, and capital costs. Thailand faces challenges for generation investment given its rapid socio-economic progress and fast growing demand. A novel generation investment and planning decision-support tool which incorporates a Monte Carlo extension to conventional optimal generation mix methods combined with portfolio-based analysis techniques, is used. The tool can formally assess tradeoffs between expected future generation costs, cost uncertainties, and CO 2 emissions for the range of different generation portfolios. Results highlight that different levels of future carbon pricing will have significant impacts on the most appropriate generation portfolios. The impact of carbon pricing, however, is not on the appropriate proportion of combined cycle gas turbines (CCGT) in the mix but, instead, on the future role of coal versus nuclear in Thailand. Compared with the current proposed 2030 generation mix, it is possible that there are other generation portfolios that offer lower expected costs, cost uncertainty, and CO 2 emissions depending on future carbon pricing. Results suggest that this investment decision-support approach may have value for electric utilities and policy-makers contemplating significant generation investments under high future uncertainty and conflicting policy objectives. -- Highlights: ► Assess Thailand's future generation portfolios in 2030 under uncertainties. ► Future carbon prices have significant impacts on the appropriate generation mixes. ► Carbon pricing affects the future role of coal versus nuclear in Thailand. ► There may be more appropriate alternatives than the proposed 2030 generation mix. ► This decision-support approach has value for utility and policy decision-making.

  7. The viability of alternative assessment methods in the Greek upper secondary school: the oral portfolio

    Directory of Open Access Journals (Sweden)

    Angeliki Daphni

    2012-02-01

    Full Text Available Τhe final examination of the English language subject, in the context of the Greek state upper secondary education, is a traditional paper-and-pencil test which does not include any assessment of oracy skills. This article explores the viability of the oral portfolio as an alternative assessment and pedagogic method that can facilitate the assessment of speaking and listening skills and create a more motivating learning environment. To this effect, three methodological tools were designed, namely, a questionnaire addressing upper secondary English teachers in Greek state schools, a case study involving an oral portfolio implementation and finally, a questionnaire for students to record their experience. The study demonstrates that implementation of the portfolio contributed to a successful assessment of oracy skills and that it was a stimulating experience for students. The results of the study also showed that the pedagogical value of the portfolio counterbalanced its practical constraints. The paper concludes by putting forward recommendations for the future application of this assessment technique in state school education.

  8. Portfolio assessment and evaluation: implications and guidelines for clinical nursing education.

    Science.gov (United States)

    Chabeli, M M

    2002-08-01

    With the advent of Outcomes-Based Education in South Africa, the quality of nursing education is debatable, especially with regard to the assessment and evaluation of clinical nursing education, which is complex and renders the validity and reliability of the methods used questionable. This paper seeks to explore and describe the use of portfolio assessment and evaluation, its implications and guidelines for its effective use in nursing education. Firstly, the concepts of assessment, evaluation, portfolio and alternative methods of evaluation are defined. Secondly, a comparison of the characteristics of the old (traditional) methods and the new alternative methods of evaluation is made. Thirdly, through deductive analysis, synthesis and inference, implications and guidelines for the effective use of portfolio assessment and evaluation are described. In view of the qualitative, descriptive and exploratory nature of the study, a focus group interview with twenty students following a post-basic degree at a university in Gauteng regarding their perceptions on the use of portfolio assessment and evaluation method in clinical nursing education was used. A descriptive method of qualitative data analysis of open coding in accordance with Tesch's protocol (in Creswell 1994:155) was used. Resultant implications and guidelines were conceptualised and described within the existing theoretical framework. Principles of trustworthiness were maintained as described by (Lincoln & Guba 1985:290-327). Ethical considerations were in accordance with DENOSA's standards of research (1998:7).

  9. Developing evaluation instrument based on CIPP models on the implementation of portfolio assessment

    Science.gov (United States)

    Kurnia, Feni; Rosana, Dadan; Supahar

    2017-08-01

    This study aimed to develop an evaluation instrument constructed by CIPP model on the implementation of portfolio assessment in science learning. This study used research and development (R & D) method; adapting 4-D by the development of non-test instrument, and the evaluation instrument constructed by CIPP model. CIPP is the abbreviation of Context, Input, Process, and Product. The techniques of data collection were interviews, questionnaires, and observations. Data collection instruments were: 1) the interview guidelines for the analysis of the problems and the needs, 2) questionnaire to see level of accomplishment of portfolio assessment instrument, and 3) observation sheets for teacher and student to dig up responses to the portfolio assessment instrument. The data obtained was quantitative data obtained from several validators. The validators consist of two lecturers as the evaluation experts, two practitioners (science teachers), and three colleagues. This paper shows the results of content validity obtained from the validators and the analysis result of the data obtained by using Aikens' V formula. The results of this study shows that the evaluation instrument based on CIPP models is proper to evaluate the implementation of portfolio assessment instruments. Based on the experts' judgments, practitioners, and colleagues, the Aikens' V coefficient was between 0.86-1,00 which means that it is valid and can be used in the limited trial and operational field trial.

  10. Teaching Auditing Using Cases in an Online Learning Environment: The Role of ePortfolio Assessment

    Science.gov (United States)

    Mihret, Dessalegn Getie; Abayadeera, Nadana; Watty, Kim; McKay, Jade

    2017-01-01

    While teaching auditing using cases is regarded as an effective approach, spatial separation of students and teachers in online contexts can restrict the application of case teaching. This study examines an undergraduate auditing course implemented to address this challenge by integrating case teaching with ePortfolio assessment. Students' written…

  11. BBN-Based Portfolio Risk Assessment for NASA Technology R&D Outcome

    Science.gov (United States)

    Geuther, Steven C.; Shih, Ann T.

    2016-01-01

    The NASA Aeronautics Research Mission Directorate (ARMD) vision falls into six strategic thrusts that are aimed to support the challenges of the Next Generation Air Transportation System (NextGen). In order to achieve the goals of the ARMD vision, the Airspace Operations and Safety Program (AOSP) is committed to developing and delivering new technologies. To meet the dual challenges of constrained resources and timely technology delivery, program portfolio risk assessment is critical for communication and decision-making. This paper describes how Bayesian Belief Network (BBN) is applied to assess the probability of a technology meeting the expected outcome. The network takes into account the different risk factors of technology development and implementation phases. The use of BBNs allows for all technologies of projects in a program portfolio to be separately examined and compared. In addition, the technology interaction effects are modeled through the application of object-oriented BBNs. The paper discusses the development of simplified project risk BBNs and presents various risk results. The results presented include the probability of project risks not meeting success criteria, the risk drivers under uncertainty via sensitivity analysis, and what-if analysis. Finally, the paper shows how program portfolio risk can be assessed using risk results from BBNs of projects in the portfolio.

  12. The renewables portfolio standard in Texas: an early assessment

    International Nuclear Information System (INIS)

    Langniss, Ole; Wiser, Ryan

    2003-01-01

    Texas has rapidly emerged as one of the leading wind power markets in the United States. This development can be largely traced to a well-designed and carefully implemented renewables portfolio standard (RPS). The RPS is a new policy mechanism that has received increasing attention as an attractive approach to support renewable power generation. Though replacing existing renewable energy policies with an as-of-yet untested approach in the RPS is risky, early experience from Texas suggests that an RPS can effectively spur renewables development and encourage competition among renewable energy producers. Initial RPS targets in Texas were well exceeded by the end of 2001, with 915 MW of wind installed in that year alone. RPS compliance costs appear negligible with new wind projects reportedly contracted for well under 3(US) cents/kWh, in part as a result of a 1.7(US) cents/kWh production tax credit, an outstanding wind resource and an RPS that is sizable enough to drive project economies of scale. Obliged retail suppliers have been willing to enter into long-term contracts with renewable generators, reducing important risks for both the developer and the retail supplier. Finally, the country's first comprehensive renewable energy certificate program has been put into place to monitor and track RPS compliance

  13. The renewables portfolio standard in Texas: An early assessment; TOPICAL

    International Nuclear Information System (INIS)

    Wiser, Ryan H.; Langniss, Ole

    2001-01-01

    Texas has rapidly emerged as one of the leading wind power markets in the United States. This development can be largely traced to a well-designed and carefully implemented renewables portfolio standard (RPS). The RPS is a new policy mechanism that has received increasing attention as an attractive approach to support renewable power generation. Though replacing existing renewable energy policies with an as-of-yet largely untested approach in the RPS is risky, early experience from Texas suggests that an RPS can effectively spur renewables development and encourage competition among renewable energy producers. Initial RPS targets in Texas will be far exceeded by the end of 2001, with as much as 930 MW of wind slated for installation this year. RPS compliance costs appear negligible, with new wind projects reportedly contracted for under 3(US)/242/kWh, in part as a result of a 1.7(US)/242/kWh production tax credit, an outstanding wind resource, and an RPS that is sizable enough to drive project economies of scale. Obliged retail suppliers have been willing to enter into long-term contracts with renewable generators, reducing important risks for both the developer and the retail supplier. Finally, the country's first comprehensive renewable energy certificate program has been put into place to monitor and track RPS compliance

  14. Construct validation of teacher portfolio assessment : Procedures for improving teacher competence assessment illustrated by teaching students research skills

    NARCIS (Netherlands)

    Schaaf, M.F. van der

    2005-01-01

    The study aims to design and test procedures for teacher portfolio assessments. What are suitable procedures to assess teachers' competencies in developing students' research skills? We first searched into the tasks teachers have in teaching students research skills and the competencies needed to

  15. Investigating Portfolio Assessment with Learners of the 3rd Grade in a Greek State Primary School

    Directory of Open Access Journals (Sweden)

    Sophia Kouzouli

    2012-02-01

    Full Text Available Assessment is a field increasingly explored in relation to the parameters it involves. The special characteristics of the learners and the interactive relationship between instruction and assessment lead to the use not only of traditional assessment techniques but also of alternative methods such as the portfolio. This study intends to investigate the implementation of a process portfolio in a Greek state primary school with a class of third graders aged between 8-9, concentrating on integration of skills. The findings show that this technique is appropriate for young learners and that it meets specific pedagogical and assessment criteria. It also exerts positive impact on metacognitive awareness, learner autonomy and positive attitude towards learning. Finally, the findings give insight to emerging problems and issues requiring further research.

  16. Energy Portfolio Assessment Tool (EPAT): Sustainable Energy Planning Using the WEF Nexus Approach - Texas Case Study

    Science.gov (United States)

    Mroue, A. M.

    2017-12-01

    The future energy portfolio at the national and subnational levels should consider its impact on water resources and environment. Although energy resources are the main contributors to the national economic growth, these resources must not exploit other primary natural resources. A study of the connections between energy and natural systems, such as water, environment and land is required prior to proceeding to energy development. Policy makers are in need of a tool quantifying the interlinkages across energy, water and the environment, while demonstrating the consequent trade-offs across the nexus systems. The Energy Portfolio Assessment Tool (EPAT) is a tool that enables the policy maker to create different energy portfolio scenarios with various energy and electricity sources, and evaluate the scenario's sustainability environmentally and economically. The Water-Energy-Food nexus systematic approach is the foundation of the EPAT framework. The research evaluates the impact of the current and projected Texas energy portfolios on water and the environment, taking into consideration energy production, electricity generation and policy change. The three scenarios to be assessed include EIA projections for energy production, and EIA projections for electricity generation with and without the Clean Power Plan (CPP). Each scenario is accompanied by tradeoffs across water, land, emissions, energy revenue and electricity cost. The CPP succeeds in mitigating the emissions of the electricity portfolio, but leads to an increase in water consumption and land use. The cost of electricity generation is almost identical with and without environmental conservation. Revenue from energy production increased, but results are majorly influenced by commodity price. Therefore, conservation policies should move from the silo to the nexus mentality to avoid unintended consequences as improving one part of the nexus could end up worsening the other parts.

  17. The portfolio approach to competency-based assessment at the Cleveland Clinic Lerner College of Medicine.

    Science.gov (United States)

    Dannefer, Elaine F; Henson, Lindsey C

    2007-05-01

    Despite the rapid expansion of interest in competency-based assessment, few descriptions of assessment systems specifically designed for a competency-based curriculum have been reported. The purpose of this article is to describe the design of a portfolio approach to a comprehensive, competency-based assessment system that is fully integrated with the curriculum to foster an educational environment focused on learning. The educational design goal of the Cleveland Clinic Lerner College of Medicine of Case Western Reserve University was to create an integrated educational program-curriculum and instructional methods, student assessment processes, and learning environment-to prepare medical students for success in careers as physician investigators. The first class in the five-year program matriculated in 2004. To graduate, a student must demonstrate mastery of nine competencies: research, medical knowledge, communication, professionalism, clinical skills, clinical reasoning, health care systems, personal development, and reflective practice. The portfolio provides a tool for collecting and managing multiple types of assessment evidence from multiple contexts and sources within the curriculum to document competence and promote reflective practice skills. This article describes how the portfolio was developed to provide both formative and summative assessment of student achievement in relation to the program's nine competencies.

  18. You Be the Judge: When Competitions Employ an Engineering Design Rubric

    Science.gov (United States)

    Goldberg, Gail Lynn

    2017-01-01

    This article examines the use of an engineering design rubric by judges for three different student competitions--one regional, one national, and one global--to evaluate portfolios posted on the Innovation Portal, a free online resource available to students, teachers, and others engaged in STEM education across instructional levels. Judges…

  19. Portfolio: a comprehensive method of assessment for postgraduates in oral and maxillofacial surgery.

    Science.gov (United States)

    Kadagad, Poornima; Kotrashetti, S M

    2013-03-01

    Post graduate learning and assessment is an important responsibility of an academic oral and maxillofacial surgeon. The current method of assessment for post graduate training include formative evaluation in the form of seminars, case presentations, log books and infrequently conducted end of year theory exams. End of the course theory and practical examination is a summative evaluation which awards the degree to the student based on grades obtained. Oral and maxillofacial surgery is mainly a skill based specialty and deliberate practice enhances skill. But the traditional system of assessment of post graduates emphasizes their performance on the summative exam which fails to evaluate the integral picture of the student throughout the course. Emphasis on competency and holistic growth of the post graduate student during training in recent years has lead to research and evaluation of assessment methods to quantify students' progress during training. Portfolio method of assessment has been proposed as a potentially functional method for post graduate evaluation. It is defined as a collection of papers and other forms of evidence that learning has taken place. It allows the collation and integration of evidence on competence and performance from different sources to gain a comprehensive picture of everyday practice. The benefits of portfolio assessment in health professions education are twofold: it's potential to assess performance and its potential to assess outcomes, such as attitudes and professionalism that are difficult to assess using traditional instruments. This paper is an endeavor for the development of portfolio method of assessment for post graduate student in oral and maxillofacial surgery.

  20. Development of the rubric self-efficacy scale

    Directory of Open Access Journals (Sweden)

    Perihan Güneş

    2018-01-01

    Full Text Available The purpose of this study is to develop a valid and reliable measurement tool determining teachers’ self-efficacy regarding rubrics. Especially in educational environments, rubrics are measurement tools used in the assessment phase of student products usually based on higher-order thinking skills. Determination of teachers’ self-efficacy regarding rubrics can give researchers an idea on how often and how accurately teachers use such tools.  For this reason, the existence of a tool accurately measuring self-efficacy variable is necessary. This study’s sample consists of 641 elementary, middle and high school teachers. To determine teachers’ self-efficacy levels regarding rubrics, 47-item draft was developed. As a result of validity and reliability analyzes, a 28-item measurement tool with a four-factor structure was obtained. The total scale’s and sub-factors’ internal consistency is quite high. Using this scale, researchers can examine the relationships between teachers’ self-efficacy and various variables that play an important role in education. In addition, comparative studies on the intended use of rubrics can be conducted by determining teachers’ self-efficacy levels regarding rubrics.

  1. Object-Oriented Bayesian Networks (OOBN) for Aviation Accident Modeling and Technology Portfolio Impact Assessment

    Science.gov (United States)

    Shih, Ann T.; Ancel, Ersin; Jones, Sharon M.

    2012-01-01

    The concern for reducing aviation safety risk is rising as the National Airspace System in the United States transforms to the Next Generation Air Transportation System (NextGen). The NASA Aviation Safety Program is committed to developing an effective aviation safety technology portfolio to meet the challenges of this transformation and to mitigate relevant safety risks. The paper focuses on the reasoning of selecting Object-Oriented Bayesian Networks (OOBN) as the technique and commercial software for the accident modeling and portfolio assessment. To illustrate the benefits of OOBN in a large and complex aviation accident model, the in-flight Loss-of-Control Accident Framework (LOCAF) constructed as an influence diagram is presented. An OOBN approach not only simplifies construction and maintenance of complex causal networks for the modelers, but also offers a well-organized hierarchical network that is easier for decision makers to exploit the model examining the effectiveness of risk mitigation strategies through technology insertions.

  2. A Framework for Assessing a Portfolio of Technologies for Licensing out

    DEFF Research Database (Denmark)

    Santiago, Leonardo; Martinelli, Marcela; Elói-Santos, Daniel T.

    2015-01-01

    to develop our approach, which we illustrate with an in-depth assessment of 50 technologies. We conclude by discussing the pros and cons of our approach and its potential generalization to other companies and considering how it can be used to indicate value drivers for R&D strategy.......Companies invest in R&D to create and exploit new opportunities. In recent years, leading innovative companies have attempted to establish a market for technologies and create leveraging opportunities through such markets. In this paper, we consider the question of how a firm can evaluate its...... patent portfolio for licensing purposes. To this end, we propose an approach that enables large corporations to scrutinize their portfolio of (patented) technologies and to subsequently set up royalty rate values to support the negotiation process of a particular technology. We use case-based research...

  3. Dependence and risk assessment for oil prices and exchange rate portfolios: A wavelet based approach

    Science.gov (United States)

    Aloui, Chaker; Jammazi, Rania

    2015-10-01

    In this article, we propose a wavelet-based approach to accommodate the stylized facts and complex structure of financial data, caused by frequent and abrupt changes of markets and noises. Specifically, we show how the combination of both continuous and discrete wavelet transforms with traditional financial models helps improve portfolio's market risk assessment. In the empirical stage, three wavelet-based models (wavelet-EGARCH with dynamic conditional correlations, wavelet-copula, and wavelet-extreme value) are considered and applied to crude oil price and US dollar exchange rate data. Our findings show that the wavelet-based approach provides an effective and powerful tool for detecting extreme moments and improving the accuracy of VaR and Expected Shortfall estimates of oil-exchange rate portfolios after noise is removed from the original data.

  4. THE EFFECT OF SCAFFOLDING AND PORTFOLIO ASSESSMENT ON JORDANIAN EFL LEARNERS’ WRITING

    Directory of Open Access Journals (Sweden)

    Ruba Fahmi Bataineh

    2016-07-01

    Full Text Available This study examines the potential effect of scaffolding-based instruction and portfolio-based assessment on Jordanian EFL tenth grade students’ overall writing performance and their performance on the sub-skills of focus, development, organization, conventions and word choice. The study uses a quasi-experimental experimental/control group, pre-/posttest design. In the experimental group, 15 female tenth grade students from the North-Eastern Badia Directorate of Education (Jordan were taught to generate ideas, structure, draft, and edit their written pieces using agency scaffolding, the scaffolding principles of contextual support, continuity, intersubjectivity, flow, contingency and handover, and a slightly adapted version of Hamp-Lyons and Condon’s (2000 Portfolio Model of collection, selection and reflection. A control group of 28 students were instructed conventionally per the guidelines of the teacher’s book. Using descriptive statistics and ANCOVA to analyze the students’ scores on the pre- and the posttests, the results showed that the group taught through scaffolding-based instruction and portfolio-based assessment outperformed the control group (at a≤ 0.05 in their overall writing performance and in their performance on the five writing sub-skills.

  5. Assessing the Value of Information for Identifying Optimal Floodplain Management Portfolios

    Science.gov (United States)

    Read, L.; Bates, M.; Hui, R.; Lund, J. R.

    2014-12-01

    Floodplain management is a complex portfolio problem that can be analyzed from an integrated perspective incorporating traditionally structural and nonstructural options. One method to identify effective strategies for preparing, responding to, and recovering from floods is to optimize for a portfolio of temporary (emergency) and permanent floodplain management options. A risk-based optimization approach to this problem assigns probabilities to specific flood events and calculates the associated expected damages. This approach is currently limited by: (1) the assumption of perfect flood forecast information, i.e. implementing temporary management activities according to the actual flood event may differ from optimizing based on forecasted information and (2) the inability to assess system resilience across a range of possible future events (risk-centric approach). Resilience is defined here as the ability of a system to absorb and recover from a severe disturbance or extreme event. In our analysis, resilience is a system property that requires integration of physical, social, and information domains. This work employs a 3-stage linear program to identify the optimal mix of floodplain management options using conditional probabilities to represent perfect and imperfect flood stages (forecast vs. actual events). We assess the value of information in terms of minimizing damage costs for two theoretical cases - urban and rural systems. We use portfolio analysis to explore how the set of optimal management options differs depending on whether the goal is for the system to be risk-adverse to a specified event or resilient over a range of events.

  6. Reliability of Portfolio: A Closer Look at Findings from Recent Publications

    Science.gov (United States)

    Oskay, Ozge Ozyalcin; Schallies, Michael; Morgil, Inci

    2008-01-01

    In this review article, conventional portfolio assessment and new developments in portfolio assessment are investigated. The concept of portfolio, portfolio building steps, contents of portfolio, evaluation of portfolio, advantages, disadvantages and concerns in using portfolio as well as validity and reliability of portfolio assessment are…

  7. A Monte Carlo based decision-support tool for assessing generation portfolios in future carbon constrained electricity industries

    International Nuclear Information System (INIS)

    Vithayasrichareon, Peerapat; MacGill, Iain F.

    2012-01-01

    This paper presents a novel decision-support tool for assessing future generation portfolios in an increasingly uncertain electricity industry. The tool combines optimal generation mix concepts with Monte Carlo simulation and portfolio analysis techniques to determine expected overall industry costs, associated cost uncertainty, and expected CO 2 emissions for different generation portfolio mixes. The tool can incorporate complex and correlated probability distributions for estimated future fossil-fuel costs, carbon prices, plant investment costs, and demand, including price elasticity impacts. The intent of this tool is to facilitate risk-weighted generation investment and associated policy decision-making given uncertainties facing the electricity industry. Applications of this tool are demonstrated through a case study of an electricity industry with coal, CCGT, and OCGT facing future uncertainties. Results highlight some significant generation investment challenges, including the impacts of uncertain and correlated carbon and fossil-fuel prices, the role of future demand changes in response to electricity prices, and the impact of construction cost uncertainties on capital intensive generation. The tool can incorporate virtually any type of input probability distribution, and support sophisticated risk assessments of different portfolios, including downside economic risks. It can also assess portfolios against multi-criterion objectives such as greenhouse emissions as well as overall industry costs. - Highlights: ► Present a decision support tool to assist generation investment and policy making under uncertainty. ► Generation portfolios are assessed based on their expected costs, risks, and CO 2 emissions. ► There is tradeoff among expected cost, risks, and CO 2 emissions of generation portfolios. ► Investment challenges include economic impact of uncertainties and the effect of price elasticity. ► CO 2 emissions reduction depends on the mix of

  8. Application of the Beck model to stock markets: Value-at-Risk and portfolio risk assessment

    Science.gov (United States)

    Kozaki, M.; Sato, A.-H.

    2008-02-01

    We apply the Beck model, developed for turbulent systems that exhibit scaling properties, to stock markets. Our study reveals that the Beck model elucidates the properties of stock market returns and is applicable to practical use such as the Value-at-Risk estimation and the portfolio analysis. We perform empirical analysis with daily/intraday data of the S&P500 index return and find that the volatility fluctuation of real markets is well-consistent with the assumptions of the Beck model: The volatility fluctuates at a much larger time scale than the return itself and the inverse of variance, or “inverse temperature”, β obeys Γ-distribution. As predicted by the Beck model, the distribution of returns is well-fitted by q-Gaussian distribution of Tsallis statistics. The evaluation method of Value-at-Risk (VaR), one of the most significant indicators in risk management, is studied for q-Gaussian distribution. Our proposed method enables the VaR evaluation in consideration of tail risk, which is underestimated by the variance-covariance method. A framework of portfolio risk assessment under the existence of tail risk is considered. We propose a multi-asset model with a single volatility fluctuation shared by all assets, named the single β model, and empirically examine the agreement between the model and an imaginary portfolio with Dow Jones indices. It turns out that the single β model gives good approximation to portfolios composed of the assets with non-Gaussian and correlated returns.

  9. Situating Information Literacy within the Curriculum: Using a Rubric to Shape a Program

    Science.gov (United States)

    Jastram, Iris; Leebaw, Danya; Tompkins, Heather

    2014-01-01

    Rubrics are a rapidly growing subfield of information literacy assessment, providing a powerful tool for understanding student learning. This paper explores the role that the creation and application of an information literacy rubric can play in program development. Because of the Information Literacy in Student Writing assessment project at…

  10. Portfolio Optimization

    OpenAIRE

    Issagali, Aizhan; Alshimbayeva, Damira; Zhalgas, Aidana

    2015-01-01

    In this paper Portfolio Optimization techniques were used to determine the most favorable investment portfolio. In particular, stock indices of three companies, namely Microsoft Corporation, Christian Dior Fashion House and Shevron Corporation were evaluated. Using this data the amounts invested in each asset when a portfolio is chosen on the efficient frontier were calculated. In addition, the Portfolio with minimum variance, tangency portfolio and optimal Markowitz portfolio are presented.

  11. The implementation of portfolio assessment by the educators on the mathematics learning process in senior high school

    Science.gov (United States)

    Lestariani, Ida; Sujadi, Imam; Pramudya, Ikrar

    2018-05-01

    Portfolio assessment can shows the development of the ability of learners in a period through the work so that can be seen progress monitored learning of each learner. The purpose of research to describe and know the implementation of portfolio assessment on the mathematics learning process with the Senior High school math teacher class X as the subject because of the importance of applying the assessment for the progress of learning outcomes of learners. This research includes descriptive qualitative research type. Techniques of data collecting is done by observation method, interview and documentation. Data collection then validated using triangulation technique that is observation technique, interview and documentation. Data analysis technique is done by data reduction, data presentation and conclusion. The results showed that the steps taken by teachers in applying portfolio assessment obtained focused on learning outcomes. Student learning outcomes include homework and daily tests. Based on the results of research can be concluded that the implementation of portfolio assessment is the form of learning results are scored. Teachers have not yet implemented other portfolio assessment techniques such as student work.

  12. Problem-Solving Rubrics Revisited: Attending to the Blending of Informal Conceptual and Formal Mathematical Reasoning

    Science.gov (United States)

    Hull, Michael M.; Kuo, Eric; Gupta, Ayush; Elby, Andrew

    2013-01-01

    Much research in engineering and physics education has focused on improving students' problem-solving skills. This research has led to the development of step-by-step problem-solving strategies and grading rubrics to assess a student's expertise in solving problems using these strategies. These rubrics value "communication" between the…

  13. Grading Rubrics: Hoopla or Help?

    Science.gov (United States)

    Howell, Rebecca J.

    2014-01-01

    The purpose of the study was to offer some quantitative, multivariate evidence concerning the impact of grading rubric use on academic outcome among American higher education students. Using a pre-post, quasi-experimental research design, cross-sectional data were derived from undergraduates enrolled in an elective during spring and fall 2009 at…

  14. Academic Leaders' Perspectives on Adopting ePortfolios for Developing and Assessing Professional Capabilities in Australian Business Education

    Science.gov (United States)

    Holt, Dale; McGuigan, Nicholas; Kavanagh, Marie; Leitch, Shona; Ngo, Leanne; Salzman, Scott; Watty, Kim; McKay, Jade

    2016-01-01

    This paper represents a major stage of data collection and reporting on an Australian Office for Learning and Teaching Innovation and Development grant investigating the adoption of ePortfolios for developing and assessing professional capabilities in Australian undergraduate business education. Assessing desired capabilities with and through…

  15. [The portfolio in health sciences teacher education: a tool for learning and assessment].

    Science.gov (United States)

    Roni, Carolina; Eder, María L; Schwartzman, Gisela

    2013-01-01

    The Portfolio is an assessment tool of learning that recently appears in academic forums, and since 2008 is part of the University Teacher Education Program (Teaching Training) at University Institute of Hospital Italiano. Was included to allow teachers reflect on their own practices and accompany them in their educational work everyday. This paper shares the evaluative experience focused on the educational value of the writing process of the Portfolio, as long as is a reflection and a learning tool, by the relationship that promotes between theory and practice. Writing promotes psychological processes that enable students gain new meanings of the knowledge and take over them. At the same time, it can attend the construction of practical rationality that governs the ways of intervening in the classroom, because they write and reflect from their own teaching work. They have been introduced changes in the proposed during the course of its implementation to preserve its purposes: to accompany the draft review, jointly define index, etc. Students point that it is high impact training and conclude that writing is re-think about what they have learned, and therefore keep learning.

  16. DEVELOPING VISUAL PRESENTATION ATTITUDE RUBRIC: VALIDITY AND RELIABILITY STUDY

    OpenAIRE

    ATEŞ, Hatice KADIOĞLU; ADA, Sefer; BAYSAL, Z. Nurdan

    2015-01-01

    Abstract The aim of this study is to develop visual presentation attitude rubric which is valid and reliable for the 4th grade students. 218 students took part in this study from Engin Can Güre which located in Istanbul, Esenler. While preparing this assessment tool with 34 criterias , 6 university lecturers view have been taken who are experts in their field. The answer key sheet has 4 (likert )type options. The rubric has been first tested by Kaiser-Meyer Olkin and Bartletts tests an...

  17. Using Rubrics as a Scientific Writing Instructional Method in Early Stage Undergraduate Neuroscience Study.

    Science.gov (United States)

    Clabough, Erin B D; Clabough, Seth W

    2016-01-01

    Scientific writing is an important communication and learning tool in neuroscience, yet it is a skill not adequately cultivated in introductory undergraduate science courses. Proficient, confident scientific writers are produced by providing specific knowledge about the writing process, combined with a clear student understanding about how to think about writing (also known as metacognition). We developed a rubric for evaluating scientific papers and assessed different methods of using the rubric in inquiry-based introductory biology classrooms. Students were either 1) given the rubric alone, 2) given the rubric, but also required to visit a biology subject tutor for paper assistance, or 3) asked to self-grade paper components using the rubric. Students who were required to use a peer tutor had more negative attitudes towards scientific writing, while students who used the rubric alone reported more confidence in their science writing skills by the conclusion of the semester. Overall, students rated the use of an example paper or grading rubric as the most effective ways of teaching scientific writing, while rating peer review as ineffective. Our paper describes a concrete, simple method of infusing scientific writing into inquiry-based science classes, and provides clear avenues to enhance communication and scientific writing skills in entry-level classes through the use of a rubric or example paper, with the goal of producing students capable of performing at a higher level in upper level neuroscience classes and independent research.

  18. Students’ use of a rubric for research theses

    NARCIS (Netherlands)

    Prins, Frans J.; de Kleijn, Renske; Tartwijk, Jan van

    2017-01-01

    A rubric for research theses was developed, based on the manual of the American Psychological Association, to be used as an assessment tool for teachers and students. The aim was to make students aware of what is expected, get familiar with criteria, and interpret teacher and peer feedback. In two

  19. Students' Use of a Rubric for Research Theses

    Science.gov (United States)

    Prins, Frans J.; de Kleijn, Renske; van Tartwijk, Jan

    2017-01-01

    A rubric for research theses was developed, based on the manual of the American Psychological Association, to be used as an assessment tool for teachers and students. The aim was to make students aware of what is expected, get familiar with criteria, and interpret teacher and peer feedback. In two studies, it was examined whether students use and…

  20. A Preliminary Rubric Design to Evaluate Mixed Methods Research

    Science.gov (United States)

    Burrows, Timothy J.

    2013-01-01

    With the increase in frequency of the use of mixed methods, both in research publications and in externally funded grants there are increasing calls for a set of standards to assess the quality of mixed methods research. The purpose of this mixed methods study was to conduct a multi-phase analysis to create a preliminary rubric to evaluate mixed…

  1. An Examination of the EeTPA Portfolio Assessment and Other Measures of Teacher Preparation and Readiness

    Science.gov (United States)

    Russell, Victoria; Davidson Devall, Kelly F.

    2016-01-01

    The authors examined the outcomes on several measures of world language teacher preparedness, including university- and state-mandated summative evaluations and the edTPA portfolio assessment, for seven world language teacher candidates during their final semester of clinical practice. The candidates were enrolled in an initial certification…

  2. Probabilistic disaggregation model with application to natural hazard risk assessment of portfolios

    DEFF Research Database (Denmark)

    Custer, Rocco; Nishijima, Kazuyoshi

    In natural hazard risk assessment, a resolution mismatch between hazard data and aggregated exposure data is often observed. A possible solution to this issue is the disaggregation of exposure data to match the spatial resolution of hazard data. Disaggregation models available in literature...... disaggregation model that considers the uncertainty in the disaggregation, taking basis in the scaled Dirichlet distribution. The proposed probabilistic disaggregation model is applied to a portfolio of residential buildings in the Canton Bern, Switzerland, subject to flood risk. Thereby, the model is verified...... are usually deterministic and make use of auxiliary indicator, such as land cover, to spatially distribute exposures. As the dependence between auxiliary indicator and disaggregated number of exposures is generally imperfect, uncertainty arises in disaggregation. This paper therefore proposes a probabilistic...

  3. The national portfolio for postgraduate family medicine training in South Africa: a descriptive study of acceptability, educational impact, and usefulness for assessment.

    Science.gov (United States)

    Jenkins, Louis; Mash, Bob; Derese, Anselme

    2013-07-25

    Since 2007 a portfolio of learning has become a requirement for assessment of postgraduate family medicine training by the Colleges of Medicine of South Africa. A uniform portfolio of learning has been developed and content validity established among the eight postgraduate programmes. The aim of this study was to investigate the portfolio's acceptability, educational impact, and perceived usefulness for assessment of competence. Two structured questionnaires of 35 closed and open-ended questions were delivered to 53 family physician supervisors and 48 registrars who had used the portfolio. Categorical and nominal/ordinal data were analysed using simple descriptive statistics. The open-ended questions were analysed with ATLAS.ti software. Half of registrars did not find the portfolio clear, practical or feasible. Workshops on portfolio use, learning, and supervision were supported, and brief dedicated time daily for reflection and writing. Most supervisors felt the portfolio reflected an accurate picture of learning, but just over half of registrars agreed. While the portfolio helped with reflection on learning, participants were less convinced about how it helped them plan further learning. Supervisors graded most rotations, suggesting understanding the summative aspect, while only 61% of registrars reflected on rotations, suggesting the formative aspects are not yet optimally utilised. Poor feedback, the need for protected academic time, and pressure of service delivery impacting negatively on learning. This first introduction of a national portfolio for postgraduate training in family medicine in South Africa faces challenges similar to those in other countries. Acceptability of the portfolio relates to a clear purpose and guide, flexible format with tools available in the workplace, and appreciating the changing educational environment from university-based to national assessments. The role of the supervisor in direct observations of the registrar and dedicated

  4. Decision Gate Process for Assessment of a NASA Technology Development Portfolio

    Science.gov (United States)

    Kohli, Rajiv; Fishman, Julianna L.; Hyatt, Mark J.

    2012-01-01

    The NASA Dust Management Project (DMP) was established to provide technologies (to Technology Readiness Level (TRL) 6) required to address adverse effects of lunar dust to humans and to exploration systems and equipment, to reduce life cycle cost and risk, and to increase the probability of sustainable and successful lunar missions. The technology portfolio of DMP consisted of different categories of technologies whose final product was either a technology solution in itself, or one that contributes toward a dust mitigation strategy for a particular application. A Decision Gate Process (DGP) was developed to assess and validate the achievement and priority of the dust mitigation technologies as the technologies progress through the development cycle. The DGP was part of continuous technology assessment and was a critical element of DMP risk management. At the core of the process were technology-specific criteria developed to measure the success of each DMP technology in attaining the technology readiness levels assigned to each decision gate. The DGP accounts for both categories of technologies and qualifies the technology progression from technology development tasks to application areas. The process provided opportunities to validate performance, as well as to identify non-performance in time to adjust resources and direction. This paper describes the overall philosophy of the DGP and the methodology for implementation for DMP, and describes the method for defining the technology evaluation criteria. The process is illustrated by example of an application to a specific DMP technology.

  5. The value of eJournals to support ePortfolio development for assessment in teacher education

    Directory of Open Access Journals (Sweden)

    Susan Crichton

    2009-04-01

    Full Text Available This paper presents findings from a two-year pilot project into the use of ePortfolios as a tool for assessment in a two year, field-oriented, inquiry-based teacher preparation program. Participants consisted of five cohorts of pre-service student teachers and five instructors; interviews, focus groups, artifacts, and project meetings provided the raw data for analysis. The originality of this work rests in the importance of establishing an eJournal to accompany the ePortfolio. Based on our findings in this action research study, we challenge and add to the existing ePortfolio literature around such issues as ePortfolio project design, process vs. product, the use of templates, social software, and documentation. Résumé : Cet article présente les résultats d’un projet pilote de deux ans portant sur l’utilisation des portfolios électroniques comme outil d’évaluation au sein d’un programme de préparation des enseignants axé sur la recherche et la pratique d’une durée de deux ans. Les participants se composaient de cinq cohortes d’étudiants en enseignement non encore sur le marché du travail ainsi que de cinq instructeurs; les données brutes qui ont été analysées proviennent d’entretiens, de groupes de discussion, d’artefacts et de réunions de projet. L’originalité de ce travail réside dans l’importance attachée à la création d’un journal électronique pour accompagner le portfolio. Sur la base de nos conclusions dans cette étude de recherche appliquée, nous remettons en question la documentation existante tout en y contribuant sur des sujets tels que la conception du projet de portfolio électronique, la comparaison du processus et du produit, l’utilisation de modèles, les logiciels sociaux et la documentation.

  6. Decision-support tool for assessing future nuclear reactor generation portfolios

    International Nuclear Information System (INIS)

    Jain, Shashi; Roelofs, Ferry; Oosterlee, Cornelis W.

    2014-01-01

    Capital costs, fuel, operation and maintenance (O and M) costs, and electricity prices play a key role in the economics of nuclear power plants. Often standardized reactor designs are required to be locally adapted, which often impacts the project plans and the supply chain. It then becomes difficult to ascertain how these changes will eventually reflect in costs, which makes the capital costs component of nuclear power plants uncertain. Different nuclear reactor types compete economically by having either lower and less uncertain construction costs, increased efficiencies, lower and less uncertain fuel cycles and O and M costs etc. The decision making process related to nuclear power plants requires a holistic approach that takes into account the key economic factors and their uncertainties. We here present a decision-support tool that satisfactorily takes into account the major uncertainties in the cost elements of a nuclear power plant, to provide an optimal portfolio of nuclear reactors. The portfolio so obtained, under our model assumptions and the constraints considered, maximizes the combined returns for a given level of risk or uncertainty. These decisions are made using a combination of real option theory and mean–variance portfolio optimization. - Highlights: • Decisions to continue or abandon the construction of NPPs • Mean–variance portfolio of nuclear reactors • Sensitivity study of mean–variance portfolio of nuclear reactors

  7. Teacher Portfolios.

    Science.gov (United States)

    Wolfe-Quintero, Kate; Brown, James Dean

    1998-01-01

    A portfolio of achievements, experiences, and reflections can help English-as-a-Second-Language teachers attain professional development goals and offer administrators greater insight for making informed hiring and job-performance decisions. This paper focuses on what teacher portfolios are, what their contents should be, and what their uses are…

  8. Teaching Portfolio

    DEFF Research Database (Denmark)

    Pedersen, Christian Fischer

    The present teaching portfolio has been submitted for evaluation in partial fulfillment of the requirements of the teacher training programme for Assistant Professors at Department of Engineering, Aarhus University, Denmark.......The present teaching portfolio has been submitted for evaluation in partial fulfillment of the requirements of the teacher training programme for Assistant Professors at Department of Engineering, Aarhus University, Denmark....

  9. Customer portfolios

    DEFF Research Database (Denmark)

    Clarke, Ann Højbjerg; Freytag, Per Vagn; Zolkiewski, Judith

    2017-01-01

    gives managers a tool to help to cope with the dynamic aspects of the customer portfolio. Recognition of the importance of communication to the process, the development of trust and the role of legitimacy also provides areas that managers can focus upon in their relationship management processes......Purpose The purpose of this paper is to extend the discussion about customer portfolios beyond simple identification of models and how they can be used for balanced resource allocation to a discussion about how portfolios should take into account views from relationship partners and how they should...... that helps improve the understanding of how customer portfolio models can actually be applied from a relational perspective. Findings The key aspects of the conceptual framework relate to how alignment of the relationships in the portfolio is achieved. Critical to this are the interaction spaces...

  10. Portfolios in Saudi medical colleges

    Science.gov (United States)

    Fida, Nadia M.; Shamim, Muhammad S.

    2016-01-01

    Over recent decades, the use of portfolios in medical education has evolved, and is being applied in undergraduate and postgraduate programs worldwide. Portfolios, as a learning process and method of documenting and assessing learning, is supported as a valuable tool by adult learning theories that stress the need for learners to be self-directed and to engage in experiential learning. Thoughtfully implemented, a portfolio provides learning experiences unequaled by any single learning tool. The credibility (validity) and dependability (reliability) of assessment through portfolios have been questioned owing to its subjective nature; however, methods to safeguard these features have been described in the literature. This paper discusses some of this literature, with particular attention to the role of portfolios in relation to self-reflective learning, provides an overview of current use of portfolios in undergraduate medical education in Saudi Arabia, and proposes research-based guidelines for its implementation and other similar contexts. PMID:26905344

  11. [A structured ePortfolio to handle a programme of professional competences assessment in the area of transfusion medicine].

    Science.gov (United States)

    Staccini, P; Hergon, E; Bordonado, C; Jullien, S; Quaranta, J-F

    2007-08-01

    In order to organize a nationwide program for the evaluation of professional practices in the area of blood transfusion, the French National Blood Transfusion Institute and the Nice-Sophia Antipolis University designed and implemented a web based service aimed at following-up and guiding the physicians involved in such an assessment program. The core component is a structured electronic portfolio (ePortfolio), the implementation of which was based on an object-oriented environment combined with a content management system. The modelling of the global evaluation system makes it possible to describe this type of portfolio according to six axes: an axis "objectives" (competencies accreditation); an axis "target" (heath care professionals); an axis "content" (numerical documents); an axis "structure" (matrix of answer defined in space and time); an axis "source" (single source peer-reviewed); an axis "level of evidence" (validation of the proof after its deposit by an identified and authenticated peer user, whole tracking of the exchanges and interactions between users and device).

  12. Specific patterns in portfolio analysis

    Directory of Open Access Journals (Sweden)

    Gabriela Victoria ANGHELACHE

    2013-11-01

    Full Text Available In the mid-twentieth century, under an unprecedented growth of the business of trading in securities, the need to provide a modern framework for assessing the performance of portfolios of financial instruments was felt. To that effect, it is noted that over this period, more and more economists have attempted to develop statistical mathematical models that ensure the evaluation of profitability and portfolio risk securities. These models are considered to be part of "the modern portfolio theory".

  13. A New Decision-Making Method for Stock Portfolio Selection Based on Computing with Linguistic Assessment

    Directory of Open Access Journals (Sweden)

    Chen-Tung Chen

    2009-01-01

    Full Text Available The purpose of stock portfolio selection is how to allocate the capital to a large number of stocks in order to bring a most profitable return for investors. In most of past literatures, experts considered the portfolio of selection problem only based on past crisp or quantitative data. However, many qualitative and quantitative factors will influence the stock portfolio selection in real investment situation. It is very important for experts or decision-makers to use their experience or knowledge to predict the performance of each stock and make a stock portfolio. Because of the knowledge, experience, and background of each expert are different and vague, different types of 2-tuple linguistic variable are suitable used to express experts' opinions for the performance evaluation of each stock with respect to criteria. According to the linguistic evaluations of experts, the linguistic TOPSIS and linguistic ELECTRE methods are combined to present a new decision-making method for dealing with stock selection problems in this paper. Once the investment set has been determined, the risk preferences of investor are considered to calculate the investment ratio of each stock in the investment set. Finally, an example is implemented to demonstrate the practicability of the proposed method.

  14. Incorporating a Soil Science Artifact into a University ePortfolio Assessment Tool

    Science.gov (United States)

    Mikhailova, Elena; Werts, Joshua; Post, Christopher; Ring, Gail

    2014-01-01

    The ePortfolio is a useful educational tool that is utilized in many educational institutions to showcase student accomplishments and provide students with an opportunity to reflect on their educational progress. The objective of this study was to develop and test an artifact from an introductory soil science course to be included in the…

  15. Collaborative e-Learning: e-Portfolios for Assessment, Teaching and Learning

    NARCIS (Netherlands)

    van Wesel, Maarten

    2009-01-01

    This paper presents an innovative approach to e-learning by exploring a number of initiatives where there is a move towards collaborative use of Personal Development Plans (PDPs) integrated with e-portfolios as mechanisms for delivering such plans. It considers whether such a move towards more

  16. Teacher Portfolios: An Effective Way to Assess Teacher Performance and Enhance Learning

    Science.gov (United States)

    Gelfer, Jeff; 'O' Hara, Katie; Krasch, Delilah; Nguyen, Neal

    2015-01-01

    Often administrators seek alternative methods of evaluating staff while staff are frequently searching for methods to represent the breadth and quality of their efforts. One method proving to be effective for gathering and organising products of teacher activity is the portfolio. This article will discuss the procedures that teachers can apply in…

  17. Computer Assisted Project-Based Instruction: The Effects on Science Achievement, Computer Achievement and Portfolio Assessment

    Science.gov (United States)

    Erdogan, Yavuz; Dede, Dinçer

    2015-01-01

    The purpose of this study is to compare the effects of computer assisted project-based instruction on learners' achievement in a science and technology course, in a computer course and in portfolio development. With this aim in mind, a quasi-experimental design was used and a sample of 70 seventh grade secondary school students from Org. Esref…

  18. Portfolio Management

    Science.gov (United States)

    Duncan, Sharon L.

    2011-01-01

    Enterprise Business Information Services Division (EBIS) supports the Laboratory and its functions through the implementation and support of business information systems on behalf of its business community. EBIS Five Strategic Focus Areas: (1) Improve project estimating, planning and delivery capability (2) Improve maintainability and sustainability of EBIS Application Portfolio (3) Leap forward in IT Leadership (4) Comprehensive Talent Management (5) Continuous IT Security Program. Portfolio Management is a strategy in which software applications are managed as assets

  19. Assessing hail risk for a building portfolio by generating stochastic events

    Science.gov (United States)

    Nicolet, Pierrick; Choffet, Marc; Demierre, Jonathan; Imhof, Markus; Jaboyedoff, Michel; Nguyen, Liliane; Voumard, Jérémie

    2015-04-01

    Among the natural hazards affecting buildings, hail is one of the most costly and is nowadays a major concern for building insurance companies. In Switzerland, several costly events were reported these last years, among which the July 2011 event, which cost around 125 million EUR to the Aargauer public insurance company (North-western Switzerland). This study presents the new developments in a stochastic model which aims at evaluating the risk for a building portfolio. Thanks to insurance and meteorological radar data of the 2011 Aargauer event, vulnerability curves are proposed by comparing the damage rate to the radar intensity (i.e. the maximum hailstone size reached during the event, deduced from the radar signal). From these data, vulnerability is defined by a two-step process. The first step defines the probability for a building to be affected (i.e. to claim damages), while the second, if the building is affected, attributes a damage rate to the building from a probability distribution specific to the intensity class. To assess the risk, stochastic events are then generated by summing a set of Gaussian functions with 6 random parameters (X and Y location, maximum hailstone size, standard deviation, eccentricity and orientation). The location of these functions is constrained by a general event shape and by the position of the previously defined functions of the same event. For each generated event, the total cost is calculated in order to obtain a distribution of event costs. The general events parameters (shape, size, …) as well as the distribution of the Gaussian parameters are inferred from two radar intensity maps, namely the one of the aforementioned event, and a second from an event which occurred in 2009. After a large number of simulations, the hailstone size distribution obtained in different regions is compared to the distribution inferred from pre-existing hazard maps, built from a larger set of radar data. The simulation parameters are then

  20. Alternate Assessment Use with Students Who Are Deaf or Hard of Hearing: An Exploratory Mixed-Methods Analysis of Portfolio, Checklists, and Out-of-Level Test Formats

    Science.gov (United States)

    Cawthon, Stephanie W.; Wurtz, Keith A.

    2009-01-01

    The purpose of this paper is to present findings on alternate assessments for students who are deaf or hard of hearing (SDHH). Drawn from the results of the "Second National Survey of Assessments and Accommodations for Students Who Are Deaf or Hard of Hearing," this study investigated three alternate assessment formats: portfolio, checklists, and…

  1. Switching portfolios.

    Science.gov (United States)

    Singer, Y

    1997-08-01

    A constant rebalanced portfolio is an asset allocation algorithm which keeps the same distribution of wealth among a set of assets along a period of time. Recently, there has been work on on-line portfolio selection algorithms which are competitive with the best constant rebalanced portfolio determined in hindsight (Cover, 1991; Helmbold et al., 1996; Cover and Ordentlich, 1996). By their nature, these algorithms employ the assumption that high returns can be achieved using a fixed asset allocation strategy. However, stock markets are far from being stationary and in many cases the wealth achieved by a constant rebalanced portfolio is much smaller than the wealth achieved by an ad hoc investment strategy that adapts to changes in the market. In this paper we present an efficient portfolio selection algorithm that is able to track a changing market. We also describe a simple extension of the algorithm for the case of a general transaction cost, including the transactions cost models recently investigated in (Blum and Kalai, 1997). We provide a simple analysis of the competitiveness of the algorithm and check its performance on real stock data from the New York Stock Exchange accumulated during a 22-year period. On this data, our algorithm outperforms all the algorithms referenced above, with and without transaction costs.

  2. Development and examination of a rubric for evaluating point-of-care medical applications for mobile devices.

    Science.gov (United States)

    Butcher, Robyn; MacKinnon, Martin; Gadd, Kathleen; LeBlanc-Duchin, Denise

    2015-01-01

    The rapid development and updates of mobile medical resource applications (apps) highlight the need for an evaluation tool to assess the content of these resources. The purpose of the study was to develop and test a new evaluation rubric for medical resource apps. The evaluation rubric was designed using existing literature and through a collaborative effort between a hospital and an academic librarian. Testing found scores ranging from 23% to 88% for the apps. The evaluation rubric proved able to distinguish levels of quality within each content component of the apps, demonstrating potential for standardization of medical resource app evaluations.

  3. Not Driven by High-Stakes Tests: Exploring Science Assessment and College Readiness of Students from an Urban Portfolio Community High School

    Science.gov (United States)

    Fleshman, Robin Earle

    This case study seeks to explore three research questions: (1) What science teaching and learning processes, perspectives, and cultures exist within the science classroom of an urban portfolio community high school? (2) In what ways does the portfolio-based approach prepare high school students of color for college level science coursework, laboratory work, and assessment? (3) Are portfolio community high school students of color college ready? Is there a relationship between students' science and mathematics performance and college readiness? The overarching objectives of the study are to learn, understand, and describe an urban portfolio community high school as it relates to science assessment and college readiness; to understand how the administration, teachers, and alumni perceive the use of portfolios in science learning and assessment; and to understand how alumni view their preparation and readiness for college and college science coursework, laboratory work, and assessments. The theoretical framework of this study encompasses four theories: critical theory, contextual assessment, self-regulated learning, and ethic of care. Because the urban high school studied partnered with a community-based organization (CBO), it identifies as a community school. Therefore, I provide context regarding the concept, culture, and services of community schools. Case study is the research design I used to explore in-depth this urban portfolio community high school, which involved mixed methods for data collection and analysis. In total, six alumni/current college students, five school members (administrators and teachers), and three CBO members (administrators, including myself) participated in the study. In addition to school artefacts and student portfolios collected, classroom and portfolio panel presentation observations and 13 semi-structured interviews were conducted to understand the portfolio-based approach as it pertains to science learning and assessment and college

  4. Comparison of Portfolio Selection and Performance: Shari’ah-Compliant and Socially Responsible Investment Portfolios

    Directory of Open Access Journals (Sweden)

    Mehmet Asutay

    2015-04-01

    Full Text Available This study examines the effect of Islamic screening criteria on Shari’ah-compliant portfolio selection and performance compared to Socially Responsible Investment (SRI portfolio. Each portfolio constructed from 15 stocks based on FTSE 100 using data from year 1997. Mean-variance portfolio optimization is employed with some financial ratios added as constraints for the Shari’ah portfolio. Annual expected return of each portfolio from 2008 to 2013 is used to calculate Sharpe’s ratio, Treynor ratio and Jensen’s alpha as the performance measurement tools. Macroeconomic variables are assessed using ordinary least square to examine whether they influence the portfolios’ expected returns or not. The result finds that Shari’ah portfolio has a better performance than SRI from year 2008 to 2010 shown by higher value of the measurement tools. However, from 2011 to 2013, SRI portfolio has better performance than Shari’ah portfolio

  5. A Relationship Strategy Perspective on Relationship Portfolios

    DEFF Research Database (Denmark)

    Ritter, Thomas; Andersen, Henrik

    2014-01-01

    The paper develops a three-dimensional portfolio model for business relationships which distinguishes among six different categories. Based on assessments of customer profitability, customer commitment, and growth potential, the positioning of a given customer relationship in the portfolio allows...... managers to determine appropriate customer relationship strategies and appropriate performance indicators. Results from applying the portfolio model are reported and managerial implications and future research are discussed.......The paper develops a three-dimensional portfolio model for business relationships which distinguishes among six different categories. Based on assessments of customer profitability, customer commitment, and growth potential, the positioning of a given customer relationship in the portfolio allows...

  6. Problem-solving rubrics revisited: Attending to the blending of informal conceptual and formal mathematical reasoning

    Science.gov (United States)

    Hull, Michael M.; Kuo, Eric; Gupta, Ayush; Elby, Andrew

    2013-06-01

    Much research in engineering and physics education has focused on improving students’ problem-solving skills. This research has led to the development of step-by-step problem-solving strategies and grading rubrics to assess a student’s expertise in solving problems using these strategies. These rubrics value “communication” between the student’s qualitative description of the physical situation and the student’s formal mathematical descriptions (usually equations) at two points: when initially setting up the equations, and when evaluating the final mathematical answer for meaning and plausibility. We argue that (i) neither the rubrics nor the associated problem-solving strategies explicitly value this kind of communication during mathematical manipulations of the chosen equations, and (ii) such communication is an aspect of problem-solving expertise. To make this argument, we present a case study of two students, Alex and Pat, solving the same kinematics problem in clinical interviews. We argue that Pat’s solution, which connects manipulation of equations to their physical interpretation, is more expertlike than Alex’s solution, which uses equations more algorithmically. We then show that the types of problem-solving rubrics currently available do not discriminate between these two types of solutions. We conclude that problem-solving rubrics should be revised or repurposed to more accurately assess problem-solving expertise.

  7. The PULSE Vision & Change Rubrics, Version 1.0: A Valid and Equitable Tool to Measure Transformation of Life Sciences Departments at All Institution Types

    Science.gov (United States)

    Brancaccio-Taras, Loretta; Pape-Lindstrom, Pamela; Peteroy-Kelly, Marcy; Aguirre, Karen; Awong-Taylor, Judy; Balser, Teri; Cahill, Michael J.; Frey, Regina F.; Jack, Thomas; Kelrick, Michael; Marley, Kate; Miller, Kathryn G.; Osgood, Marcy; Romano, Sandra; Uzman, J. Akif; Zhao, Jiuqing

    2016-01-01

    The PULSE Vision & Change Rubrics, version 1.0, assess life sciences departments' progress toward implementation of the principles of the "Vision and Change report." This paper reports on the development of the rubrics, their validation, and their reliability in measuring departmental change aligned with the "Vision and…

  8. Institutional Assessment and the Integrative Core Curriculum: Involving Students in the Development of an ePortfolio System

    Science.gov (United States)

    Silva, Mary Lourdes; Adams Delaney, Susan; Cochran, Jolene; Jackson, Ruth; Olivares, Cory

    2015-01-01

    The majority of research on the implementation of ePortfolios focuses on curriculum, faculty development, or student buy-in. When ePortfolio systems have been described in technical terms, the focus has been on the functionality, affordances, and limitations of ePortfolio systems (e.g., TaskStream, LiveText), free web tools (e.g., Google Docs),…

  9. Random matrix theory filters in portfolio optimisation: A stability and risk assessment

    Science.gov (United States)

    Daly, J.; Crane, M.; Ruskin, H. J.

    2008-07-01

    Random matrix theory (RMT) filters, applied to covariance matrices of financial returns, have recently been shown to offer improvements to the optimisation of stock portfolios. This paper studies the effect of three RMT filters on the realised portfolio risk, and on the stability of the filtered covariance matrix, using bootstrap analysis and out-of-sample testing. We propose an extension to an existing RMT filter, (based on Krzanowski stability), which is observed to reduce risk and increase stability, when compared to other RMT filters tested. We also study a scheme for filtering the covariance matrix directly, as opposed to the standard method of filtering correlation, where the latter is found to lower the realised risk, on average, by up to 6.7%. We consider both equally and exponentially weighted covariance matrices in our analysis, and observe that the overall best method out-of-sample was that of the exponentially weighted covariance, with our Krzanowski stability-based filter applied to the correlation matrix. We also find that the optimal out-of-sample decay factors, for both filtered and unfiltered forecasts, were higher than those suggested by Riskmetrics [J.P. Morgan, Reuters, Riskmetrics technical document, Technical Report, 1996. http://www.riskmetrics.com/techdoc.html], with those for the latter approaching a value of α=1. In conclusion, RMT filtering reduced the realised risk, on average, and in the majority of cases when tested out-of-sample, but increased the realised risk on a marked number of individual days-in some cases more than doubling it.

  10. The Development and Validation of a Rubric to Enhance Performer Feedback for Undergraduate Vocal Solo Performance

    Science.gov (United States)

    Herrell, Katherine A.

    2014-01-01

    This is a study of the development and validation of a rubric to enhance performer feedback for undergraduate vocal solo performance. In the literature, assessment of vocal performance is under-represented, and the value of feedback from the assessment of musical performances, from the point of view of the performer, is nonexistent. The research…

  11. Teachers’ design and use of rubrics and modeling activities for formative assessment of lower secondary school students’ modeling competence in science

    DEFF Research Database (Denmark)

    Nielsen, Sanne Schnell

    Modeling competence plays a central role in the recently revised science curriculum in Denmark. Teachers are requested to assess students learning progress targeting the modeling competence in their daily teaching. Accordingly, the teachers must understand this competence and have suitable...... assessment criteria and methods at hand. However, the curriculum descriptions of the modeling competence concept is only phrased in general terms and not based on a systematic framework....

  12. Online Reflective Writing Mechanisms and Its Effects on Self-Regulated Learning: A Case of Web-Based Portfolio Assessment System

    Science.gov (United States)

    Liang, Chaoyun; Chang, Chi-Cheng; Shu, Kuen-Ming; Tseng, Ju-Shih; Lin, Chun-Yu

    2016-01-01

    The purpose of the present study was to design reflective writing mechanisms in a web-based portfolio assessment system and evaluate its effects on self-regulated learning. Participants were two classes of juniors majoring in data processing and taking a course called "Website design" at a vocational high school in Taiwan. One class was…

  13. Implementation of Online Peer Assessment in a Design for Learning and Portfolio (D4L+P) Program to Help Students Complete Science Projects

    Science.gov (United States)

    Wuttisela, Karntarat; Wuttiprom, Sura; Phonchaiya, Sonthi; Saengsuwan, Sayant

    2016-01-01

    Peer assessment was one of the most effective strategies to improve students' understanding, metacognitive skills, and social interaction. An online tool, "Designing for Learning and Portfolio (D4L+P)", was developed solely to support the T5 (tasks, tools, tutorials, topicresources, and teamwork) method of teaching and learning. This…

  14. Using ePortfolios to Assess Applied and Collaborative Learning and Academic Identity in a Summer Research Program for Community College Students

    Science.gov (United States)

    Singer-Freeman, Karen; Bastone, Linda; Skrivanek, Joseph

    2016-01-01

    We evaluate the extent to which ePortfolios can be used to assess applied and collaborative learning and academic identity among community college students from underrepresented minority groups who participated in a summer research program. Thirty-eight students were evaluated by their research sponsor and two or three naïve faculty evaluators.…

  15. "Think Like a Lawyer" Using a Legal Reasoning Grid and Criterion-Referenced Assessment Rubric on IRAC (Issue, Rule, Application, Conclusion)

    Science.gov (United States)

    Burton, Kelley

    2017-01-01

    The Australian Learning and Teaching Council's Bachelor of Laws Learning and Teaching Academic Standards Statement identified "thinking skills" as one of the six threshold learning outcomes for a Bachelor of Laws Program, which reinforced the significance of learning, teaching and assessing "thinking skills" in law schools…

  16. The Blooming Anatomy Tool (BAT): A Discipline-Specific Rubric for Utilizing Bloom's Taxonomy in the Design and Evaluation of Assessments in the Anatomical Sciences

    Science.gov (United States)

    Thompson, Andrew R.; O'Loughlin, Valerie D.

    2015-01-01

    Bloom's taxonomy is a resource commonly used to assess the cognitive level associated with course assignments and examination questions. Although widely utilized in educational research, Bloom's taxonomy has received limited attention as an analytical tool in the anatomical sciences. Building on previous research, the Blooming Anatomy Tool (BAT)…

  17. Portfolios as "Learning Companions" for Children and a Means to Support and Assess Language Learning in the Primary School

    Science.gov (United States)

    Jones, Jane

    2012-01-01

    This article explores the idea of portfolios as a way to collect evidence of pupils' learning and achievement in their language learning in the primary school. The emphasis is on portfolio work as an active and reflective process to underpin and support learning and to show evidence of achievement and progression. Pupil choice and reflexivity are…

  18. Rubrics as a Mitigating Instrument for Bias in the Grading of Student Writing

    Science.gov (United States)

    Gerritson, Michael

    2013-01-01

    The practice of grading student writing often seems arbitrary and unfair to students. It is important to students and educators that writing is fairly and accurately assessed in order to facilitate demonstrable improvement in their composition. This research addressed a specific writing rubric as a method to mitigate implicit or subconscious…

  19. Transforming Taxonomies into Rubrics: Using SOLO in Social Science and Inclusive Education

    Science.gov (United States)

    Rembach, Lauren; Dison, Laura

    2016-01-01

    Designing assessment rubrics has become an important pedagogical practice for lecturers in the Wits School of Education (WsoE) in the recognition of writing as a valuable tool for teaching and learning across disciplines. This paper describes and reflects on the process of adapting the SOLO taxonomy (Structure of Observed Learning Outcomes)…

  20. Inter-rater reliability of healthcare professional skills' portfolio assessments: The Andalusian Agency for Healthcare Quality model

    Directory of Open Access Journals (Sweden)

    Antonio Almuedo-Paz

    2014-07-01

    Full Text Available This study aims to determine the reliability of assessment criteria used for a portfolio at the Andalusian Agency for Healthcare Quality (ACSA. Data: all competences certification processes, regardless of their discipline. Period: 2010-2011. Three types of tests are used: 368 certificates, 17,895 reports and 22,642 clinical practice reports (N = 3,010 candidates. The tests were evaluated in pairs by the ACSA team of raters using two categories: valid and invalid. Results: The percentage agreement in assessments of certificates was 89,9%, while for the reports of clinical practice was 85,1 % and for clinical practice reports was 81,7%. The inter-rater agreement coefficients (kappa ranged from 0,468 to 0,711. Discussion: The results of this study show that the inter-rater reliability of assessments varies from fair to good. Compared with other similar studies, the results put the reliability of the model in a comfortable position. Among the improvements incorporated, progressive automation of evaluations must be highlighted.

  1. Exploring students' perceptions on the use of significant event analysis, as part of a portfolio assessment process in general practice, as a tool for learning how to use reflection in learning.

    Science.gov (United States)

    Grant, Andrew J; Vermunt, Jan D; Kinnersley, Paul; Houston, Helen

    2007-03-30

    Portfolio learning enables students to collect evidence of their learning. Component tasks making up a portfolio can be devised that relate directly to intended learning outcomes. Reflective tasks can stimulate students to recognise their own learning needs. Assessment of portfolios using a rating scale relating to intended learning outcomes offers high content validity. This study evaluated a reflective portfolio used during a final-year attachment in general practice (family medicine). Students were asked to evaluate the portfolio (which used significant event analysis as a basis for reflection) as a learning tool. The validity and reliability of the portfolio as an assessment tool were also measured. 81 final-year medical students completed reflective significant event analyses as part of a portfolio created during a three-week attachment (clerkship) in general practice (family medicine). As well as two reflective significant event analyses each portfolio contained an audit and a health needs assessment. Portfolios were marked three times; by the student's GP teacher, the course organiser and by another teacher in the university department of general practice. Inter-rater reliability between pairs of markers was calculated. A questionnaire enabled the students' experience of portfolio learning to be determined. Benefits to learning from reflective learning were limited. Students said that they thought more about the patients they wrote up in significant event analyses but information as to the nature and effect of this was not forthcoming. Moderate inter-rater reliability (Spearman's Rho .65) was found between pairs of departmental raters dealing with larger numbers (20-60) of portfolios. Inter-rater reliability of marking involving GP tutors who only marked 1-3 portfolios was very low. Students rated highly their mentoring relationship with their GP teacher but found the portfolio tasks time-consuming. The inter-rater reliability observed in this study should

  2. Generic Assessment Rubrics for Computer Programming Courses

    Science.gov (United States)

    Mustapha, Aida; Samsudin, Noor Azah; Arbaiy, Nurieze; Mohammed, Rozlini; Hamid, Isredza Rahmi

    2016-01-01

    In programming, one problem can usually be solved using different logics and constructs but still producing the same output. Sometimes students get marked down inappropriately if their solutions do not follow the answer scheme. In addition, lab exercises and programming assignments are not necessary graded by the instructors but most of the time…

  3. Using the Visualization Software Evaluation Rubric to explore six freely available visualization applications

    Directory of Open Access Journals (Sweden)

    Thea P. Atwood

    2018-01-01

    Full Text Available Objective: As a variety of visualization tools become available to librarians and researchers, it can be challenging to select a tool that is robust and flexible enough to provide the desired visualization outcomes for work or personal use. In this article, the authors provide guidance on several freely available tools, and offer a rubric for use in evaluating visualization tools. Methods: A rubric was generated to assist the authors in assessing the selected six freely available visualization tools. Each author analyzed three tools, and discussed the differences, similarities, challenges, and successes of each. Results: Of the six visualization tools, two tools emerged with high marks. The authors found that the rubric was a successful evaluation tool, and facilitated discussion on the strengths and weaknesses of the six selected visualization pieces of software. Conclusions: Of the six different visualization tools analyzed, all had different functions and features available to best meet the needs of users. In a situation where there are many options available, and it is difficult at first glance to determine a clear winner, a rubric can be useful in providing a method to quickly assess and communicate the effectiveness of a tool.

  4. Universal portfolios in stochastic portfolio theory

    OpenAIRE

    Wong, Ting-Kam Leonard

    2015-01-01

    Consider a family of portfolio strategies with the aim of achieving the asymptotic growth rate of the best one. The idea behind Cover's universal portfolio is to build a wealth-weighted average which can be viewed as a buy-and-hold portfolio of portfolios. When an optimal portfolio exists, the wealth-weighted average converges to it by concentration of wealth. Working under a discrete time and pathwise setup, we show under suitable conditions that the distribution of wealth in the family sati...

  5. Examining Portfolio-Based Assessment in an Upper-Level Biology Course

    Science.gov (United States)

    Ziegler, Brittany Ann

    2012-01-01

    Historically, students have been viewed as empty vessels and passive participants in the learning process but students actually are active forming their own conceptions. One way student learning is impacted is through assessment. Alternative assessment, which contrasts traditional assessment methods, takes into account how students learn by…

  6. Web-Based Portfolio Assessment: Validation of an Open Source Platform

    Science.gov (United States)

    Collins, Regina; Elliot, Norbert; Klobucar, Andrew; Deek, Fadi P.

    2013-01-01

    Assessment of educational outcomes through purchased tests is commonplace in the evaluation of individual student ability and of educational programs. Focusing on the assessment of writing performance in a longitudinal study of first-time, full-time students (n = 598), this research describes the design, use, and assessment of an open-source…

  7. Overall strategy for management of parameters and data in the biosphere assessment portfolio

    International Nuclear Information System (INIS)

    Hjerpe, T.

    2006-12-01

    Throughout the biosphere assessment, the parameters selected to represent the present and future biosphere and choices of data values are crucial issues, greatly affecting the end result. The necessity of clear strategy for managing parameters and data is obvious; how to handle the variability of parameters as such, the selection from different sources, the derivation of values of model parameters not readily available, storage of the data in a proper manner, and assuring the quality throughout the whole assessment programme. In this working report a proposed set of broad guidelines for the overall strategy for the management of parameters and data in the biosphere assessment strategy is first presented. Thereafter, a scheme is proposed for assuring the knowledge quality of data. Finally, a proposal for requirements and management of the biosphere assessment database and the current status of the on-going work building the biosphere assessment database and interfaces to other tools are presented. (orig.)

  8. A Rubric for Evaluating Student Analyses of Business Cases

    Science.gov (United States)

    Riddle, Emma Jane; Smith, Marilyn; Frankforter, Steven A.

    2016-01-01

    This article presents a rubric for evaluating student performance on written case assignments that require qualitative analysis. This rubric is designed for three purposes. First, it informs students of the criteria on which their work will be evaluated. Second, it provides instructors with a reliable instrument for accurately measuring and…

  9. Evaluation of an established learning portfolio.

    Science.gov (United States)

    Vance, Gillian; Williamson, Alyson; Frearson, Richard; O'Connor, Nicole; Davison, John; Steele, Craig; Burford, Bryan

    2013-02-01

    The trainee-held learning portfolio is integral to the foundation programme in the UK. In the Northern Deanery, portfolio assessment is standardised through the Annual Review of Competence Progression (ARCP) process. In this study we aimed to establish how current trainees evaluate portfolio-based learning and ARCP, and how these attitudes may have changed since the foundation programme was first introduced. Deanery-wide trainee attitudes were surveyed by an electronic questionnaire in 2009 and compared with perceptions recorded during the pilot phase (2004-2005).  Many trainees continue to view the e-portfolio negatively. Indeed, significantly fewer trainees in 2009 thought that the e-portfolio was a 'good idea' or a 'worthwhile investment of time' than in 2005. Trainees remain unconvinced about the educational value of the e-portfolio: fewer trainees in 2009 regarded it as a tool that might help focus on training or recognise individual strengths and weaknesses. Issues around unnecessary bureaucracy persist. Current trainees tend to understand how to use the e-portfolio, but many did not know how much, or what evidence to collect. Few supervisors were reported to provide useful guidance on the portfolio. ARCP encouraged portfolio completion but did not give meaningful feedback to drive future learning.   Continued support is needed for both trainees and supervisors in portfolio-building skills and in using the e-portfolio as an educational tool. Trainee-tailored feedback is needed to ensure that portfolio-based assessment promotes lifelong, self-directed and reflective learners. © Blackwell Publishing Ltd 2013.

  10. Portfolio: A Comprehensive Method of Assessment for Postgraduates in Oral and Maxillofacial Surgery

    OpenAIRE

    Kadagad, Poornima; Kotrashetti, S. M.

    2012-01-01

    Post graduate learning and assessment is an important responsibility of an academic oral and maxillofacial surgeon. The current method of assessment for post graduate training include formative evaluation in the form of seminars, case presentations, log books and infrequently conducted end of year theory exams. End of the course theory and practical examination is a summative evaluation which awards the degree to the student based on grades obtained. Oral and maxillofacial surgery is mainly a...

  11. Tools for peer assessment in an e-learning environment

    Directory of Open Access Journals (Sweden)

    Hugo Nordseth

    2010-11-01

    Full Text Available Our exploration of peer assessment in the formative feedback of themes within ITL111 Digital Competence for teachers (15 ECTS and GEO102 Physical Geography (15 ECTS is based on support from tools within the LMS, sets of learning based outcomes, rubrics and Six Thinking Hats. The overall effect is improved quality of the student assignments and deeper learning. The best results were registered with the use of rubrics where the students were presented with clearly defined criteria for expected performance on a sample of different themes within the course. In order to perform the peer review, the students had to acquire the basic knowledge of the various themes. In addition, seeing how others solved the assignment provided the student with reflections on the themes that would improve the student's own final portfolio.

  12. Revising an Engineering Design Rubric: A Case Study Illustrating Principles and Practices to Ensure Technical Quality of Rubrics

    Science.gov (United States)

    Goldberg, Gail Lynn

    2014-01-01

    This article provides a detailed account of a rubric revision process to address seven common problems to which rubrics are prone: lack of consistency and parallelism; the presence of "orphan" and "widow" words and phrases; redundancy in descriptors; inconsistency in the focus of qualifiers; limited routes to partial credit;…

  13. Performance of salmon fishery portfolios across western North America.

    Science.gov (United States)

    Griffiths, Jennifer R; Schindler, Daniel E; Armstrong, Jonathan B; Scheuerell, Mark D; Whited, Diane C; Clark, Robert A; Hilborn, Ray; Holt, Carrie A; Lindley, Steven T; Stanford, Jack A; Volk, Eric C

    2014-12-01

    Quantifying the variability in the delivery of ecosystem services across the landscape can be used to set appropriate management targets, evaluate resilience and target conservation efforts. Ecosystem functions and services may exhibit portfolio-type dynamics, whereby diversity within lower levels promotes stability at more aggregated levels. Portfolio theory provides a framework to characterize the relative performance among ecosystems and the processes that drive differences in performance. We assessed Pacific salmon Oncorhynchus spp. portfolio performance across their native latitudinal range focusing on the reliability of salmon returns as a metric with which to assess the function of salmon ecosystems and their services to humans. We used the Sharpe ratio (e.g. the size of the total salmon return to the portfolio relative to its variability (risk)) to evaluate the performance of Chinook and sockeye salmon portfolios across the west coast of North America. We evaluated the effects on portfolio performance from the variance of and covariance among salmon returns within each portfolio, and the association between portfolio performance and watershed attributes. We found a positive latitudinal trend in the risk-adjusted performance of Chinook and sockeye salmon portfolios that also correlated negatively with anthropogenic impact on watersheds (e.g. dams and land-use change). High-latitude Chinook salmon portfolios were on average 2·5 times more reliable, and their portfolio risk was mainly due to low variance in the individual assets. Sockeye salmon portfolios were also more reliable at higher latitudes, but sources of risk varied among the highest performing portfolios. Synthesis and applications . Portfolio theory provides a straightforward method for characterizing the resilience of salmon ecosystems and their services. Natural variability in portfolio performance among undeveloped watersheds provides a benchmark for restoration efforts. Locally and regionally

  14. Performance of salmon fishery portfolios across western North America

    Science.gov (United States)

    Griffiths, Jennifer R; Schindler, Daniel E; Armstrong, Jonathan B; Scheuerell, Mark D; Whited, Diane C; Clark, Robert A; Hilborn, Ray; Holt, Carrie A; Lindley, Steven T; Stanford, Jack A; Volk, Eric C

    2014-01-01

    Quantifying the variability in the delivery of ecosystem services across the landscape can be used to set appropriate management targets, evaluate resilience and target conservation efforts. Ecosystem functions and services may exhibit portfolio-type dynamics, whereby diversity within lower levels promotes stability at more aggregated levels. Portfolio theory provides a framework to characterize the relative performance among ecosystems and the processes that drive differences in performance. We assessed Pacific salmon Oncorhynchus spp. portfolio performance across their native latitudinal range focusing on the reliability of salmon returns as a metric with which to assess the function of salmon ecosystems and their services to humans. We used the Sharpe ratio (e.g. the size of the total salmon return to the portfolio relative to its variability (risk)) to evaluate the performance of Chinook and sockeye salmon portfolios across the west coast of North America. We evaluated the effects on portfolio performance from the variance of and covariance among salmon returns within each portfolio, and the association between portfolio performance and watershed attributes. We found a positive latitudinal trend in the risk-adjusted performance of Chinook and sockeye salmon portfolios that also correlated negatively with anthropogenic impact on watersheds (e.g. dams and land-use change). High-latitude Chinook salmon portfolios were on average 2·5 times more reliable, and their portfolio risk was mainly due to low variance in the individual assets. Sockeye salmon portfolios were also more reliable at higher latitudes, but sources of risk varied among the highest performing portfolios. Synthesis and applications. Portfolio theory provides a straightforward method for characterizing the resilience of salmon ecosystems and their services. Natural variability in portfolio performance among undeveloped watersheds provides a benchmark for restoration efforts. Locally and regionally

  15. Capstone Portfolios and Geography Student Learning Outcomes

    Science.gov (United States)

    Mossa, Joann

    2014-01-01

    Due to increasing demands regarding student learning outcomes and accreditation, a capstone portfolio was added to assess critical thinking and communication skills of geography majors at a large public university in the USA. The portfolio guidelines were designed to be adaptable to a flexible curriculum where about half of the requirements within…

  16. Undergraduate Student Perspectives on Electronic Portfolio Assessment in College Composition Courses

    Science.gov (United States)

    Fullerton, Bridget Katherine Jean

    2017-01-01

    Though Linda Adler-Kassner and Peggy O'Neill claim that ethical writing assessment models "must be designed and built collaboratively, with careful attention to the values and passions of all involved, through a process that provides access to all," college students have not typically been included in scholarly conversations about…

  17. Teacher Electronic Portfolio and its Relation to EFL Student Teacher Performance and Attitude

    Directory of Open Access Journals (Sweden)

    Areej T Alshawi

    2017-01-01

    Full Text Available E-portfolio is a promising approach to develop teachers into reflective practitioners who show that they can adapt to new technologies, new criteria, and new environments. The current research explored the quality of EFL student teachers’ e-portfolios and their attitudes towards using them. The research was conducted on 30 EFL female student teachers at Princess Noura bint Abdulrahman University, Saudi Arabia. The participants were engaging in practical training at schools and reflecting their skills and experiences in their e-portfolios. This research posed further questions about the relationships between the quality of EFL student teachers’ e-portfolios, their attitudes towards using them and their teaching performance. In order to explore the possible answers, the participants’ teaching performance were observed, their e-portfolios were evaluated by a rubric, and a 24-item questionnaire was administered to them. The results proved high proficiency level of the EFL student teachers’ e-portfolios and positive attitudes towards using e-portfolios among EFL student teachers. Furthermore, the results denoted a statistically significant positive relationship between the quality of EFL student teachers’ e-portfolio and their teaching performance. The results of this study may encourage policy makers to integrate the idea of e-portfolio and reflection as an effective component in teacher education and development.

  18. Probabilistic disaggregation model with application to natural hazard risk assessment of portfolios

    OpenAIRE

    Custer, Rocco; Nishijima, Kazuyoshi

    2012-01-01

    In natural hazard risk assessment, a resolution mismatch between hazard data and aggregated exposure data is often observed. A possible solution to this issue is the disaggregation of exposure data to match the spatial resolution of hazard data. Disaggregation models available in literature are usually deterministic and make use of auxiliary indicator, such as land cover, to spatially distribute exposures. As the dependence between auxiliary indicator and disaggregated number of exposures is ...

  19. Applying a Data Stewardship Maturity Matrix to the NOAA Observing System Portfolio Integrated Assessment Process

    Science.gov (United States)

    Peng, G.; Austin, M.

    2017-12-01

    Identification and prioritization of targeted user community needs are not always considered until after data has been created and archived. Gaps in data curation and documentation in the data production and delivery phases limit data's broad utility specifically for decision makers. Expert understanding and knowledge of a particular dataset is often required as a part of the data and metadata curation process to establish the credibility of the data and support informed decision-making. To enhance curation practices, content from NOAA's Observing System Integrated Assessment (NOSIA) Value Tree, NOAA's Data Catalog/Digital Object Identifier (DOI) projects (collection-level metadata) have been integrated with Data/Stewardship Maturity Matrices (data and stewardship quality information) focused on assessment of user community needs. This results in user focused evidence based decision making tools created by NOAA's National Environmental Satellite, Data, and Information Service (NESDIS) through identification and assessment of data content gaps related to scientific knowledge and application to key areas of societal benefit. Through enabling user need feedback from the beginning of data creation through archive allows users to determine the quality and value of data that is fit for purpose. Data gap assessment and prioritization are presented in a user-friendly way using the data stewardship maturity matrices as measurement of data management quality. These decision maker tools encourages data producers and data providers/stewards to consider users' needs prior to data creation and dissemination resulting in user driven data requirements increasing return on investment. A use case focused on need for NOAA observations linked societal benefit will be used to demonstrate the value of these tools.

  20. The primary assessment tool at Philips electronics : capturing real options and organizational risk in technology portfolio management

    NARCIS (Netherlands)

    Lint, L.J.O.

    2000-01-01

    I develop an extended scoring approach to build a balanced portfolio of new technology projects under uncertainty at early stages of development. My contribution is twofold. First, I show how the tool incorporates the option approach to decision making to create contingent claims on future market

  1. Teaching and Assessing Academic Writing via the Portfolio: Benefits for Learners of English as an Additional Language

    Science.gov (United States)

    Romova, Zina; Andrew, Martin

    2011-01-01

    This paper examines the use of portfolios as pedagogical tools for developing academic writing. In particular, it considers the value of multi-drafting, where learners reflect on the learning of a text type as well as focusing on micro and macro aspects. The paper outlines a situated pedagogical approach, where students come to understand their…

  2. Petascale Diagnostic Assessment of the Global Portfolio Rainfall Space Missions' Ability to Support Flood Forecasting

    Science.gov (United States)

    Reed, P. M.; Chaney, N.; Herman, J. D.; Wood, E. F.; Ferringer, M. P.

    2015-12-01

    This research represents a multi-institutional collaboration between Cornell University, The Aerospace Corporation, and Princeton University that has completed a Petascale diagnostic assessment of the current 10 satellite missions providing rainfall observations. Our diagnostic assessment has required four core tasks: (1) formally linking high-resolution astrodynamics design and coordination of space assets with their global hydrological impacts within a Petascale "many-objective" global optimization framework, (2) developing a baseline diagnostic evaluation of a 1-degree resolution global implementation of the Variable Infiltration Capacity (VIC) model to establish the required satellite observation frequencies and coverage to maintain acceptable global flood forecasts, (3) evaluating the limitations and vulnerabilities of the full suite of current satellite precipitation missions including the recently approved Global Precipitation Measurement (GPM) mission, and (4) conceptualizing the next generation spaced-based platforms for water cycle observation. Our team exploited over 100 Million hours of computing access on the 700,000+ core Blue Waters machine to radically advance our ability to discover and visualize key system tradeoffs and sensitivities. This project represents to our knowledge the first attempt to develop a 10,000 member Monte Carlo global hydrologic simulation at one degree resolution that characterizes the uncertain effects of changing the available frequencies of satellite precipitation on drought and flood forecasts. The simulation—optimization components of the work have set a theoretical baseline for the best possible frequencies and coverages for global precipitation given unlimited investment, broad international coordination in reconfiguring existing assets, and new satellite constellation design objectives informed directly by key global hydrologic forecasting requirements. Our research poses a step towards realizing the integrated

  3. Choosing or Designing the Perfect WebQuest for Your Learners Using a Reliable Rubric

    Science.gov (United States)

    Unal, Zafer; Bodur, Yasar; Unal, Aslihan

    2012-01-01

    The researchers in this study undertook development of a webquest evaluation rubric and investigated its reliability. The rubric was created using the strengths of the currently available webquest rubrics with improvements based on the comments provided in the literature and feedback received from educators. After the rubric was created, 23…

  4. Robust Active Portfolio Management

    National Research Council Canada - National Science Library

    Erdogan, E; Goldfarb, D; Iyengar, G

    2006-01-01

    ... on the portfolio beta, and limits on cash and industry exposure. We show that the optimal portfolios can be computed by solving second-order cone programs -- a class of optimization problems with a worst case complexity (i.e...

  5. Validity of the Learning Portfolio: Analysis of a Portfolio Proposal for the University

    Science.gov (United States)

    Gregori-Giralt, Eva; Menéndez-Varela, José Luis

    2015-01-01

    Validity is a central issue in portfolio-based assessment. This empirical study used a quantitative approach to analyse the validity of the inferences drawn from a disciplinary course work portfolio assessment comprising profession-specific and learning competencies. The study also examined the problems involved in the development of the…

  6. Implementing portfolio in postgraduate general practice training. Benefits and recommendations.

    Science.gov (United States)

    Alotaibi, Fawaz S

    2012-10-01

    This paper presents a review to explore the literature focusing on portfolio in postgraduate general practice (GP) training, and to examine the impact of implementation of portfolio on learning process, as well as proposing recommendations for its implementation in postgraduate GP training. An electronic search was carried out on several databases for studies addressing portfolio in postgraduate GP training. Six articles were included to address specifically the effectiveness of portfolio in postgraduate GP training. Five of them described successful experiences of portfolio-based learning implementation. Only one article addressed portfolio-based assessment in postgraduate GP training. The existing evidence provides various benefits of professional portfolio-based learning. It does appear to have advantages of stimulating reflective learning, promoting proactive learning, and bridging the hospital experiences of the learners to GP. Moreover, the challenges to implementation of portfolio-based learning are often based on orientation and training of stakeholders.

  7. [New portfolio, a users' manual].

    Science.gov (United States)

    Cougnoux, Nadège; Deken, Éric; Juif, Isabelle; Papas, Anne

    2015-10-01

    The portfolio, a tool for monitoring nursing students throughout their internship period, has now been modified. The new 2015 version can be used to monitor and trace the student's career as well as progress made. One of the major new points is the integration of an intermediate internship assessment. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

  8. Student evaluations of the portfolio process.

    Science.gov (United States)

    Murphy, John E; Airey, Tatum C; Bisso, Andrea M; Slack, Marion K

    2011-09-10

    To evaluate pharmacy students' perceived benefits of the portfolio process and to gather suggestions for improving the process. A questionnaire was designed and administered to 250 first-, second-, and third-year pharmacy students at the University of Arizona College of Pharmacy. Although the objectives of the portfolio process were for students to understand the expected outcomes, understand the impact of extracurricular activities on attaining competencies, identify what should be learned, identify their strengths and weaknesses, and modify their approach to learning, overall students perceived the portfolio process as having less than moderate benefit. First-year students wanted more examples of portfolios while second- and third-year students suggested that more time with their advisor would be beneficial. The portfolio process will continue to be refined and efforts made to improve students' perceptions of the process as it is intended to develop the self-assessments skills they will need to improve their knowledge and professional skills throughout their pharmacy careers.

  9. Development of an Electronic Portfolio System Success Model: An Information Systems Approach

    Science.gov (United States)

    Balaban, Igor; Mu, Enrique; Divjak, Blazenka

    2013-01-01

    This research has two main goals: to develop an instrument for assessing Electronic Portfolio (ePortfolio) success and to build a corresponding ePortfolio success model using DeLone and McLean's information systems success model as the theoretical framework. For this purpose, we developed an ePortfolio success measurement instrument and structural…

  10. Using Facebook-Based e-Portfolio in ESL Writing Classrooms: Impact and Challenges

    Science.gov (United States)

    Barrot, Jessie S.

    2016-01-01

    In English as a second language (ESL) writing pedagogy, much attention has been given to electronic portfolio (e-portfolio) assessment via social networking sites. However, little is known about how Facebook can be used as an e-portfolio platform. Hence, this paper describes the impact of Facebook-based e-portfolio on ESL students' writing…

  11. Comprehensive Education Portfolio with a Career Focus

    Science.gov (United States)

    Kruger, Evonne J.; Holtzman, Diane M.; Dagavarian, Debra A.

    2013-01-01

    There are many types of student portfolios used within academia: the prior learning portfolio, credentialing portfolio, developmental portfolio, capstone portfolio, individual course portfolio, and the comprehensive education portfolio. The comprehensive education portfolio (CEP), as used by the authors, is a student portfolio, developed over…

  12. Concurrent credit portfolio losses.

    Science.gov (United States)

    Sicking, Joachim; Guhr, Thomas; Schäfer, Rudi

    2018-01-01

    We consider the problem of concurrent portfolio losses in two non-overlapping credit portfolios. In order to explore the full statistical dependence structure of such portfolio losses, we estimate their empirical pairwise copulas. Instead of a Gaussian dependence, we typically find a strong asymmetry in the copulas. Concurrent large portfolio losses are much more likely than small ones. Studying the dependences of these losses as a function of portfolio size, we moreover reveal that not only large portfolios of thousands of contracts, but also medium-sized and small ones with only a few dozens of contracts exhibit notable portfolio loss correlations. Anticipated idiosyncratic effects turn out to be negligible. These are troublesome insights not only for investors in structured fixed-income products, but particularly for the stability of the financial sector. JEL codes: C32, F34, G21, G32, H81.

  13. Portfolio Assessment: Does It Really Give the Benefits That It Purports to Offer? Views of Early Childhood and First-Grade Teachers

    Science.gov (United States)

    Alaçam, Nur; Olgan, Refika

    2016-01-01

    Early childhood (n = 10) and first-grade teachers' (n = 10) views concerning portfolio usage were investigated in the current research. After collecting the data, six themes were constituted regarding the teachers' opinions about portfolio use concerning "portfolio conception," "advantages, disadvantages and challenges of…

  14. The Development of a Secondary-Level Solo Wind Instrument Performance Rubric Using the Multifaceted Rasch Partial Credit Measurement Model

    Science.gov (United States)

    Wesolowski, Brian C.; Amend, Ross M.; Barnstead, Thomas S.; Edwards, Andrew S.; Everhart, Matthew; Goins, Quentin R.; Grogan, Robert J., III; Herceg, Amanda M.; Jenkins, S. Ira; Johns, Paul M.; McCarver, Christopher J.; Schaps, Robin E.; Sorrell, Gary W.; Williams, Jonathan D.

    2017-01-01

    The purpose of this study was to describe the development of a valid and reliable rubric to assess secondary-level solo instrumental music performance based on principles of invariant measurement. The research questions that guided this study included (1) What is the psychometric quality (i.e., validity, reliability, and precision) of a scale…

  15. Development and validation of Dutch version of Lasater Clinical Judgment Rubric in hospital practice: An instrument design study

    NARCIS (Netherlands)

    Vreugdenhil, Jettie; Spek, Bea

    2017-01-01

    Clinical reasoning in patient care is a skill that cannot be observed directly. So far, no reliable, valid instrument exists for the assessment of nursing students' clinical reasoning skills in hospital practice. Lasater's clinical judgment rubric (LCJR), based on Tanner's model "Thinking like a

  16. An unbalanced portfolio.

    Science.gov (United States)

    Federsel, Hans-Jurgen

    2009-06-01

    An excellent demonstration of how meaningful and valuable conferences devoted to the topic of project and portfolio management in the pharmaceutical industry can be, was given at an event organized in Barcelona, September 2008. Thus, over this 2-day meeting the delegates were updated on the state of the art in this wide-reaching area from speakers representing an array of companies; from small, relatively new players, via mid-sized, to established large and big pharmas. One common theme that emerged was the importance of assessing the value of drug projects as correctly as possible, especially under the current financial climate and the many challenges facing the industry. Furthermore, experiences from constructing portfolios with the aim to minimize risk and maximize return on investment were shared alongside mathematical approaches to obtain the data required for this purpose and accounts of the pleasures and hardships working in a global context and in partnership constellations. Copyright 2009 Prous Science, S.A.U. or its licensors. All rights reserved.

  17. The Language Portfolio as a Self-Assessment Mechanism in an English Course Aimed at Fostering Senior Students’ Autonomy

    Directory of Open Access Journals (Sweden)

    Carlos Cárdenas Espitia

    2010-12-01

    Full Text Available This article describes an action research project in which the members of a basic English class for adults over 50 at a Colombian public university undertook the mission of discovering their potentialities as autonomous learners. By means of the reflective use of the language portfolio, the members of this course guided the planning and execution stages of the course they were enrolled in. The findings show that learners’ reflection may be convenient when designing a course that better fits the characteristics, needs, and expectations of the students so that the they can profit more from the course itself.

  18. Quantitative Portfolio Optimization Techniques Applied to the Brazilian Stock Market

    Directory of Open Access Journals (Sweden)

    André Alves Portela Santos

    2012-09-01

    Full Text Available In this paper we assess the out-of-sample performance of two alternative quantitative portfolio optimization techniques - mean-variance and minimum variance optimization – and compare their performance with respect to a naive 1/N (or equally-weighted portfolio and also to the market portfolio given by the Ibovespa. We focus on short selling-constrained portfolios and consider alternative estimators for the covariance matrices: sample covariance matrix, RiskMetrics, and three covariance estimators proposed by Ledoit and Wolf (2003, Ledoit and Wolf (2004a and Ledoit and Wolf (2004b. Taking into account alternative portfolio re-balancing frequencies, we compute out-of-sample performance statistics which indicate that the quantitative approaches delivered improved results in terms of lower portfolio volatility and better risk-adjusted returns. Moreover, the use of more sophisticated estimators for the covariance matrix generated optimal portfolios with lower turnover over time.

  19. Decentralized portfolio management

    OpenAIRE

    Coutinho, Paulo; Tabak, Benjamin Miranda

    2003-01-01

    We use a mean-variance model to analyze the problem of decentralized portfolio management. We find the solution for the optimal portfolio allocation for a head trader operating in n different markets, which is called the optimal centralized portfolio. However, as there are many traders specialized in different markets, the solution to the problem of optimal decentralized allocation should be different from the centralized case. In this paper we derive conditions for the solutions to be equiva...

  20. Risk modelling in portfolio optimization

    Science.gov (United States)

    Lam, W. H.; Jaaman, Saiful Hafizah Hj.; Isa, Zaidi

    2013-09-01

    Risk management is very important in portfolio optimization. The mean-variance model has been used in portfolio optimization to minimize the investment risk. The objective of the mean-variance model is to minimize the portfolio risk and achieve the target rate of return. Variance is used as risk measure in the mean-variance model. The purpose of this study is to compare the portfolio composition as well as performance between the optimal portfolio of mean-variance model and equally weighted portfolio. Equally weighted portfolio means the proportions that are invested in each asset are equal. The results show that the portfolio composition of the mean-variance optimal portfolio and equally weighted portfolio are different. Besides that, the mean-variance optimal portfolio gives better performance because it gives higher performance ratio than the equally weighted portfolio.

  1. Systemic risk contributions: a credit portfolio approach

    OpenAIRE

    Düllmann, Klaus; Puzanova, Natalia

    2011-01-01

    We put forward a Merton-type multi-factor portfolio model for assessing banks' contributions to systemic risk. This model accounts for the major drivers of banks' systemic relevance: size, default risk and correlation of banks' assets as a proxy for interconnectedness. We measure systemic risk in terms of the portfolio expected shortfall (ES). Banks' (marginal) risk contributions are calculated based on partial derivatives of the ES in order to ensure a full risk allocation among institutions...

  2. PSN: Portfolio Social Network

    DEFF Research Database (Denmark)

    Cortes, Jordi Magrina; Nizamani, Sarwat; Memon, Nasrullah

    2014-01-01

    In this paper we present a web-based information system which is a portfolio social network (PSN) that provides solutions to the recruiters and job seekers. The proposed system enables users to create portfolio so that he/she can add his specializations with piece of code if any specifically...

  3. Using Electronic Portfolios

    Science.gov (United States)

    Page, Deb

    2012-01-01

    The digitized collections of artifacts known as electronic portfolios are creating solutions to a variety of performance improvement needs in ways that are cost-effective and improve both individual and group learning and performance. When social media functionality is embedded in e-portfolios, the tools support collaboration, social learning,…

  4. Households' portfolio choices

    NARCIS (Netherlands)

    Hochgürtel, S.

    1998-01-01

    This thesis presents four topics on households' portfolio choices. Empirically, households do not hold well-diversified wealth portfolios. In particular, they refrain from putting their savings into risky assets. We explore several ways that might help explaining this observation. Using Dutch

  5. Portfolio i erhvervsuddannelserne

    DEFF Research Database (Denmark)

    2008-01-01

    Materialet kombinerer korte film med introducerende tekster og belyser fra forskellige vinkler, hvordan portfolio kan bruges som evalueringsmetode i erhvervsuddannelserne. Udgiver: Undervisningsministeriet Udgivelsessted: Pub.uvm.dk......Materialet kombinerer korte film med introducerende tekster og belyser fra forskellige vinkler, hvordan portfolio kan bruges som evalueringsmetode i erhvervsuddannelserne. Udgiver: Undervisningsministeriet Udgivelsessted: Pub.uvm.dk...

  6. Leptokurtic portfolio theory

    Science.gov (United States)

    Kitt, R.; Kalda, J.

    2006-03-01

    The question of optimal portfolio is addressed. The conventional Markowitz portfolio optimisation is discussed and the shortcomings due to non-Gaussian security returns are outlined. A method is proposed to minimise the likelihood of extreme non-Gaussian drawdowns of the portfolio value. The theory is called Leptokurtic, because it minimises the effects from “fat tails” of returns. The leptokurtic portfolio theory provides an optimal portfolio for investors, who define their risk-aversion as unwillingness to experience sharp drawdowns in asset prices. Two types of risks in asset returns are defined: a fluctuation risk, that has Gaussian distribution, and a drawdown risk, that deals with distribution tails. These risks are quantitatively measured by defining the “noise kernel” — an ellipsoidal cloud of points in the space of asset returns. The size of the ellipse is controlled with the threshold parameter: the larger the threshold parameter, the larger return are accepted for investors as normal fluctuations. The return vectors falling into the kernel are used for calculation of fluctuation risk. Analogously, the data points falling outside the kernel are used for the calculation of drawdown risks. As a result the portfolio optimisation problem becomes three-dimensional: in addition to the return, there are two types of risks involved. Optimal portfolio for drawdown-averse investors is the portfolio minimising variance outside the noise kernel. The theory has been tested with MSCI North America, Europe and Pacific total return stock indices.

  7. Performance Assessment of the Masses in 30 Seconds or Less

    Science.gov (United States)

    Dunbar, Laura

    2012-01-01

    Performance assessment does not have to be a time-consuming ordeal; it is a great way to assess our students' skills. It is essential to create a rubric that is simple, quick, and objective. This article discusses the process of creating a rubric as well as showing a rubric used by the author in her general music classroom for several years.…

  8. METHODICAL BASES OF MANAGEMENT OF INSURANCE PORTFOLIO

    Directory of Open Access Journals (Sweden)

    Serdechna Yulia

    2018-01-01

    Full Text Available Introduction. Despite the considerable arsenal of developments in the issues of assessing the management of the insurance portfolio remains unresolved. In order to detail, specify and further systematize the indicators for the indicated evaluation, the publications of scientists are analyzed. The purpose of the study is to analyze existing methods by which it is possible to formulate and manage the insurance portfolio in order to achieve its balance, which will contribute to ensuring the financial reliability of the insurance company. Results. The description of the essence of the concept of “management of insurance portfolio”, as the application of actuarial methods and techniques to the combination of various insurance risks offered for insurance or are already part of the insurance portfolio, allowing to adjust the size and structure of the portfolio in order to ensure its financial stability, achievement the maximum level of income of an insurance organization, preservation of the value of its equity and financial security of insurance liabilities. It is determined that the main methods by which the insurer’s insurance portfolio can be formed and managed is the selection of risks; reinsurance operations that ensure diversification of risks; formation and placement of insurance reserves, which form the financial basis of insurance activities. The method of managing an insurance portfolio, which can be both active and passive, is considered. Conclusions. It is determined that the insurance portfolio is the basis on which all the activities of the insurer are based and which determines its financial stability. The combination of methods and technologies applied to the insurance portfolio is a management method that can be both active and passive and has a number of specific methods through which the insurer’s insurance portfolio can be formed and managed. It is substantiated that each insurance company aims to form an efficient and

  9. Portfolio use and practices in US colleges and schools of pharmacy.

    Science.gov (United States)

    Skrabal, Maryann Z; Turner, Paul D; Jones, Rhonda M; Tilleman, Jennifer A; Coover, Kelli L

    2012-04-10

    To identify the prevalence of portfolio use in US pharmacy programs, common components of portfolios, and advantages of and limitations to using portfolios. A cross-sectional electronic survey instrument was sent to experiential coordinators at US colleges and schools of pharmacy to collect data on portfolio content, methods, training and resource requirements, and benefits and challenges of portfolio use. Most colleges and schools of pharmacy (61.8%) use portfolios in experiential courses and the majority (67.1%) formally assess them, but there is wide variation regarding content and assessment. The majority of respondents used student portfolios as a formative evaluation primarily in the experiential curriculum. Although most colleges and schools of pharmacy have a portfolio system in place, few are using them to fulfill accreditation requirements. Colleges and schools need to carefully examine the intended purpose of their portfolio system and follow-through with implementation and maintenance of a system that meets their goals.

  10. Beyond Renewable Portfolio Standards: An Assessment of Regional Supply and Demand Conditions Affecting the Future of Renewable Energy in the West; Report and Executive Summary

    Energy Technology Data Exchange (ETDEWEB)

    Hurlbut, D. J.; McLaren, J.; Gelman, R.

    2013-08-01

    This study assesses the outlook for utility-scale renewable energy development in the West once states have met their renewable portfolio standard (RPS) requirements. In the West, the last state RPS culminates in 2025, so the analysis uses 2025 as a transition point on the timeline of RE development. Most western states appear to be on track to meet their final requirements, relying primarily on renewable resources located relatively close to the customers being served. What happens next depends on several factors including trends in the supply and price of natural gas, greenhouse gas and other environmental regulations, consumer preferences, technological breakthroughs, and future public policies and regulations. Changes in any one of these factors could make future renewable energy options more or less attractive.

  11. Portfolios in Saudi medical colleges. Why and how?

    Directory of Open Access Journals (Sweden)

    Nadia M. Fida

    2016-03-01

    Full Text Available Over recent decades, the use of portfolios in medical education has evolved, and is being applied in undergraduate and postgraduate programs worldwide. Portfolios, as a learning process and method of documenting and assessing learning, is supported as a valuable tool by adult learning theories that stress the need for learners to be self-directed and to engage in experiential learning. Thoughtfully implemented, a portfolio provides learning experiences unequaled by any single learning tool. The credibility (validity and dependability (reliability of assessment through portfolios have been questioned owing to its subjective nature; however, methods to safeguard these features have been described in the literature. This paper discusses some of this literature, with particular attention to the role of portfolios in relation to self-reflective learning, provides an overview of current use of portfolios in undergraduate medical education in Saudi Arabia, and proposes research-based guidelines for its implementation and other similar contexts.

  12. MODERN THEORETICAL APPROACHES CREDIT PORTFOLIO QUALITY MANAGEMENT OF COMMERCIAL BANK

    Directory of Open Access Journals (Sweden)

    Victoria Lisnic

    2016-12-01

    Full Text Available Credit portfolio management means the totality of financial and economic decisions realization aimed at achieving optimal ratio of performance indicators of loan portfolio. If low-quality loans increase, the reduction of productive assets volume and, respectively, profitability from banking lending. In extreme cases a such situation could lead to bank bankruptcy. At present bank loan portfolio quality assessment is an important component of bank management.

  13. Portfolio analysis based on the example of Zagreb Stock Exchange

    OpenAIRE

    Bogdan, Sinisa; Baresa, Suzana; Ivanovic, Sasa

    2010-01-01

    In this paper we analyze the portfolio that was selected from the Zagreb Stock Exchange and also try to assess its risks and its future offerings that are relevant in making the decisions about investments. Through the work we will explain the importance of diversification and how the very diversification reduces risk. We will also analyze the systemic risk of individual stocks within the portfolio and the systemic risk of the given portfolio and explain its importance. Through regression ana...

  14. Methods of Choosing an Optimal Portfolio of Projects

    OpenAIRE

    Yakovlev, A.; Chernenko, M.

    2016-01-01

    This paper presents an analysis of existing methods for a portfolio of project optimization. The necessity for their improvement is shown. It is suggested to assess the portfolio of projects on the basis of the amount in the difference between the results and costs during development and implementation of selected projects and the losses caused by non-implementation or delayed implementation of projects that were not included in the portfolio. Consideration of capital and current costs compon...

  15. The standard for portfolio management

    CERN Document Server

    2017-01-01

    The Standard for Portfolio Management – Fourth Edition has been updated to best reflect the current state of portfolio management. It describe the principles that drive accepted good portfolio management practices in today’s organizations. It also expands the description of portfolio management to reflect its relation to organizational project management and the organization.

  16. Self-Assessment of competence during post-graduate training in general medicine: A preliminary study to develop a portfolio for further education

    Science.gov (United States)

    Huenges, Bert; Woestmann, Barbara; Ruff-Dietrich, Susanne; Rusche, Herbert

    2017-01-01

    Awareness of one’s own strengths and weaknesses is a key qualification for the specialist physician. We examined how physicians undergoing specialist training in general medicine rate themselves in different areas. For this purpose, 139 participants receiving post-graduate training in general practice offered by the Medical Association of Westfalen-Lippe assessed themselves regarding their subjective confidence in 20 core competencies and 47 situations involving patient counseling in general practice. Their self-assessments were recorded on a five-point Likert scale. The study questions addressed acceptance and practicability of self-assessment, mean values, reliability, stratification and plausibility of the results in group comparison. On average participants rated their subjective confidence with 3.4 out of 5 points. The results are self-consistent (Cronbach’s alpha >0.8), although there are considerable differences among competencies and among participants. The latter can be explained partly by biographical data, which supports the plausibility of the data. Participants stated that regularly gathering data on subjective learning needs and the discussion of these needs with mentors and trainers contributes to improving their specialist training. Elements for self-assessment are suitable for integration into a postgraduate training portfolio. These should be supplemented by formative assessment procedures. PMID:29226236

  17. Utility portfolio diversification

    International Nuclear Information System (INIS)

    Griffes, P.H.

    1990-01-01

    This paper discusses portfolio analysis as a method to evaluate utility supply decisions. Specifically a utility is assumed to increase the value of its portfolio of assets whenever it invests in a new supply technology. This increase in value occurs because the new asset either enhances the return or diversifies the risks of the firm's portfolio of assets. This evaluation method is applied to two supply innovations in the electric utility industry: jointly-owned generating plants and supply contracts with independent power producers (IPPs)

  18. Constant Proportion Portfolio Insurance

    DEFF Research Database (Denmark)

    Jessen, Cathrine

    2014-01-01

    on the theme, originally proposed by Fischer Black. In CPPI, a financial institution guarantees a floor value for the “insured” portfolio and adjusts the stock/bond mix to produce a leveraged exposure to the risky assets, which depends on how far the portfolio value is above the floor. Plain-vanilla portfolio...... insurance largely died with the crash of 1987, but CPPI is still going strong. In the frictionless markets of finance theory, the issuer’s strategy to hedge its liability under the contract is clear, but in the real world with transactions costs and stochastic jump risk, the optimal strategy is less obvious...

  19. From Aggregation to Interpretation: How Assessors Judge Complex Data in a Competency-Based Portfolio

    Science.gov (United States)

    Oudkerk Pool, Andrea; Govaerts, Marjan J. B.; Jaarsma, Debbie A. D. C.; Driessen, Erik W.

    2018-01-01

    While portfolios are increasingly used to assess competence, the validity of such portfolio-based assessments has hitherto remained unconfirmed. The purpose of the present research is therefore to further our understanding of how assessors form judgments when interpreting the complex data included in a competency-based portfolio. Eighteen…

  20. Learning in depth with the bespoke rubric-supported online poster presentation

    Science.gov (United States)

    Lajevardipour, Alireza; Wood, Andrew

    2017-08-01

    In our course of Biomedical Imaging, we introduced a research project as an assignment that included an online poster presentation. To assess the assignment, an adjusted criteria sheet was created, where it facilitated providing students with an effective feedback linked to particular criteria. Students are expected to produce a scientific poster to present the result of their investigation and upload it to an online discussion board. In addition, they are required to read their colleagues' works and provide peer-feedback by asking quality questions about principles and results, also on-line. Subtle distribution of marks in the rubric balances focus between preparing poster and providing peer-feedbacks.

  1. Use of Portfolios by Medical Students: Significance of Critical Thinking

    Directory of Open Access Journals (Sweden)

    Samy A. Azer

    2008-07-01

    Full Text Available Portfolios have been used in the medical curriculum to evaluate difficult-to-assess areas such as students' attitudes, professionalism and teamwork. However, their use early in a problem-based learning (PBL course to foster deep learning and enhance students' self-directed learning has not been adequately studied. The aims of this paper are to: (1 understand the uses of portfolios and the rationale for using reflection in the early years of a PBL curriculum; (2 discuss how to introduce portfolios and encourage students' critical thinking skills, not just reflection; and (3 provide students with tips that could enhance their skills in constructing good portfolios.

  2. Portfolio Management System

    Data.gov (United States)

    US Agency for International Development — PfMS is an implementation of WorkLenz. WorkLenz is USAID's portfolio management system tool. It is a commercially available, off-the-shelf (COTS) package that...

  3. Designing Modern Equity Portfolios

    OpenAIRE

    Ronald Jean Degen

    2011-01-01

    This aim of this paper is to describe possible ways of investing in equity; choosing the right stocks(among small-cap, large-cap, value, growth, and foreign) using fundamental analysis, defining their appropriate mix in the portfolios according to the desired return-risk profiles based on Markowitz?s modern portfolio theory, and using technical analysis to buy and sell them.

  4. Assessing the economic value of co-optimized grid-scale energy storage investments in supporting high renewable portfolio standards

    International Nuclear Information System (INIS)

    Go, Roderick S.; Munoz, Francisco D.; Watson, Jean-Paul

    2016-01-01

    Highlights: • We present a MILP to co-optimize generation, transmission, and storage investments. • We find significant value in co-optimized storage via investment deferrals. • Operational savings from bulk services are small relative to investment deferrals. • Co-optimized energy storage significantly reduces prices associated with RPS. - Abstract: Worldwide, environmental regulations such as Renewable Portfolio Standards (RPSs) are being broadly adopted to promote renewable energy investments. With corresponding increases in renewable energy deployments, there is growing interest in grid-scale energy storage systems (ESS) to provide the flexibility needed to efficiently deliver renewable power to consumers. Our contribution in this paper is to introduce a unified generation, transmission, and bulk ESS expansion planning model subject to an RPS constraint, formulated as a two-stage stochastic mixed-integer linear program (MILP) optimization model, which we then use to study the impact of co-optimization and evaluate the economic interaction between investments in these three asset classes in achieving high renewable penetrations. We present numerical case studies using the 24-bus IEEE RTS-96 test system considering wind and solar as available renewable energy resources, and demonstrate that up to $180 million/yr in total cost savings can result from the co-optimization of all three assets, relative to a situation in which no ESS investment options are available. Surprisingly, we find that co-optimized bulk ESS investments provide significant economic value through investment deferrals in transmission and generation capacity, but very little savings in operational cost. Finally, we observe that planning transmission and generation infrastructure first and later optimizing ESS investments—as is common in industry—captures at most 1.7% ($3 million/yr) of the savings that result from co-optimizing all assets simultaneously.

  5. An impact assessment of electricity and emission allowances pricing in optimised expansion planning of power sector portfolios

    International Nuclear Information System (INIS)

    Tolis, Athanasios I.; Rentizelas, Athanasios A.

    2011-01-01

    Highlights: → The impact of electricity and CO 2 allowance pricing in power sector is researched. → A stochastic programming approach without recourse is used for the optimisation. → Higher electricity prices may be proportionally beneficial for the power system. → The CO 2 allowance prices may be inversely proportionate with the expected yields. → High CO 2 allowance prices are inhibitors for conventional technology projects. -- Abstract: The present work concerns a systematic investigation of power sector portfolios through discrete scenarios of electricity and CO 2 allowance prices. The analysis is performed for different prices, from regulated to completely deregulated markets, thus representing different electricity market policies. The modelling approach is based on a stochastic programming algorithm without recourse, used for the optimisation of power sector economics under multiple uncertainties. A sequential quadratic programming routine is applied for the entire investigation period whilst the time-dependent objective function is subject to various social and production constraints, usually confronted in power sectors. The analysis indicated the optimal capacity additions that should be annually ordered from each competitive technology in order to substantially improve both the economy and the sustainability of the system. It is confirmed that higher electricity prices lead to higher financial yields of power production, irrespective of the CO 2 allowance price level. Moreover, by following the proposed licensing planning, a medium-term reduction of CO 2 emissions per MW h by 30% might be possible. Interestingly, the combination of electricity prices subsidisation with high CO 2 allowance prices may provide favourable conditions for investors willing to engage on renewable energy markets.

  6. The Role of e-Portfolios in Supporting Productive Learning

    Science.gov (United States)

    Yang, Min; Tai, Mui; Lim, Cher Ping

    2016-01-01

    e-Portfolios are a form of authentic assessment with formative functions that include showcasing and sharing learning artifacts, documenting reflective learning processes, connecting learning across various stages and enabling frequent feedback for improvements. This paper examines how e-portfolios take up these formative roles to support…

  7. A Holocaust Exhibit ePortfolio: Actively Engaging Students

    Science.gov (United States)

    Jordine, Melissa

    2015-01-01

    California State University, Fresno is currently considering implementing an ePortfolio requirement for all undergraduate students. The ePortfolio requirement would be introduced primarily to engage students in a HIP (high impact practice) but would also be used for assessment purposes. As a faculty member and a member of the CSU Fresno ePortfolio…

  8. Can One Portfolio Measure the Six ACGME General Competencies?

    Science.gov (United States)

    Jarvis, Robert M.; O'Sullivan, Patricia S.; McClain, Tina; Clardy, James A.

    2004-01-01

    Objective: To determine that portfolios, useable by any program, can provide needed evidence of resident performance within the ACGME general competencies. Methods: Eighteen residents constructed portfolios with selected entries from thirteen psychiatric skills. Two raters assessed whether entries reflected resident performance within the general…

  9. Reflective portfolios support learning, personal growth and ...

    African Journals Online (AJOL)

    Conclusion. Portfolios are an under-utilised assessment and self-development tool in postgraduate training. They allow students to self-assess their attainment of personal learning needs, professional growth and competency achievement and provide faculty with useful feedback on curriculum content, educational activities ...

  10. [Portfolio in nursing school: myth or reality].

    Science.gov (United States)

    Garnier, Chantal; Marchand, Claire

    2012-09-01

    The portfolio is a new tool that has been introduced for the setting up of a new program concerning the nurse training. It aims at the would-be nurse to improve their self-reliance and make them assess themselves through a critical and reflexive approach. Indeed, the portfolio is mostly made up of sheets that the student has to fill in when describing and analysing several professional conditions. This study is about the assessment of the relevance in the portfolio that each nurse student owns in order to make them improve their reflexive practical. The work will, thus, suggest different ways of thinking and improving the use of the tool. 30 portfolios were chosen randomly among the 2nd year students, because 180 analysis were assessed thanks to a grid. 10 viewpoints from volunteer students were gathered after several semi directive interviews. The qualitative and evaluative analysis shows that the students develop the reflexive practical throughout their trainings. It seems, indeed, relevant to choose the portfolio in order to help the students to develop this way of working. According to them, there are several positive points such as the distance towards an event, an awareness-raising of the acquisition, feedbacks about the quality of the text by the trainer and an ability to assess oneself. Yet, even though it was created 18 months ago, there are some limits such as the too short period of mentoring and feedback, the lack of time for the students to write their analysis, the fact that it is not a practical tool, and the unclear description of assessment criteria. In order to fulfil the needs, some solutions are to be found. The portfolio is clearly helpful for the students who wish to increase/improve gradually their reflexive practice. Thus, the trainer's role is crucial, when he is a supervisor.

  11. The Importance of Assessments: How Portfolios Can Impact Students' Self-Efficacy and Comprehension in an Online Graphic Design Course

    Science.gov (United States)

    Powell, Terry

    2013-01-01

    The purpose for this study was to find an assessment that is currently being used and is a common assessment familiar to others within the Brick-and-mortar classroom and transform that assessment for use within the online learning environment. By using assessments, teachers can measure whether or not students are learning what it is they are…

  12. Student Chemical Engineering Reflective ePortfolios--ChE Student Perceptions of Learning from Reflective ePortfolio Creation

    Science.gov (United States)

    Cherrstrom, Catherine A.; Raisor, Cindy; Fowler, Debra

    2015-01-01

    Engineering educators and employers value and prioritize communication skills, but developing and assessing such skills in engineering programs is challenging. Reflective ePortfolios provide opportunities to enhance communication skills. The purpose of this three-­year qualitative case study was to investigate the use of reflective ePortfolios in…

  13. Two Portfolio Systems: EFL Students' Perceptions of Writing Ability, Text Improvement, and Feedback

    Science.gov (United States)

    Lam, Ricky

    2013-01-01

    Research into portfolio assessment ("PA") typically describes teachers' development and implementation of different portfolio models in their respective teaching contexts, however, not much attention is paid to student perceptions of the portfolio approach or its impact on the learning of writing. To this end, this study aims to…

  14. Backtesting Portfolio Value-at-Risk with Estimated Portfolio Weights

    OpenAIRE

    Pei Pei

    2010-01-01

    This paper theoretically and empirically analyzes backtesting portfolio VaR with estimation risk in an intrinsically multivariate framework. For the first time in the literature, it takes into account the estimation of portfolio weights in forecasting portfolio VaR and its impact on backtesting. It shows that the estimation risk from estimating the portfolio weights as well as that from estimating the multivariate dynamic model of asset returns make the existing methods in a univariate framew...

  15. Using David Kolb's Experiential Learning Theory in Portfolio Development Courses.

    Science.gov (United States)

    Mark, Michael; Menson, Betty

    1982-01-01

    As personal portfolio assessment matures, practitioners continue to look for techniques that enhance both personal development and the process of seeking academic credit through assessment. Kolb's experiential learning theory and learning style inventory may have applications in this search. (Author)

  16. Benefits and Challenges of Developing a Customized Rubric for Curricular Review of a Residency Program in Laboratory Animal Medicine.

    Science.gov (United States)

    Whitcomb, Tiffany L; Wilson, Ronald P

    Rigorous curricular review of post-graduate veterinary medical residency programs is in the best interest of program directors in light of the requirements and needs of specialty colleges, graduate school administrations, and other stakeholders including prospective students and employers. Although minimum standards for training are typically provided by specialty colleges, mechanisms for evaluation are left to the discretion of program directors. The paucity of information available describing best practices for curricular assessment of veterinary medical specialty training programs makes resources from other medical fields essential to informing the assessment process. Here we describe the development of a rubric used to evaluate courses in a 3-year American College of Laboratory Animal Medicine (ACLAM)-recognized residency training program culminating in a Master of Science degree. This rubric, based on examples from medical education and other fields of graduate study, provided transparent criteria for evaluation that were consistent with stakeholder needs and institutional initiatives. However, its use caused delays in the curricular review process as two significant obstacles to refinement were brought to light: variation in formal education in curriculum design and significant differences in teaching philosophies among faculty. The evaluation process was able to move forward after institutional resources were used to provide faculty development in curriculum design. The use of a customized rubric is recommended as a best practice for curricular refinement for residency programs because it results in transparency of the review process and can reveal obstacles to change that would otherwise remain unaddressed.

  17. Students' attitudes towards the introduction of a Personal and Professional Development portfolio: potential barriers and facilitators.

    Science.gov (United States)

    Ross, Sarah; Maclachlan, Alison; Cleland, Jennifer

    2009-12-01

    Portfolios, widely used in undergraduate and postgraduate medicine, have variable purposes, formats and success. A recent systematic review summarised factors necessary for successful portfolio introduction but there are no studies investigating the views of students inexperienced in portfolio use towards portfolio learning. This study's aim was to survey student views about a prospective Professional and Personal Development (PPD) portfolio. This was a qualitative, focus group study. All focus groups were taped and transcribed verbatim, and anonymised. The transcripts were analysed inductively, using framework analysis. Four focus groups were carried out with 32 undergraduate medical students naïve in portfolio use. Three themes relevant to portfolio introduction emerged. The first theme was the need for clear information and support for portfolio introduction, and anxieties about how this could be supported effectively. The second was that students had negative views about reflective learning and whether this could be taught and assessed, believing formal assessment could foster socially acceptable content. The third was that participants revealed little understanding of reflective learning and its potential benefits. Rather portfolios were seen as useful for concrete purposes (e.g., job applications) not intrinsic benefits. Undergraduate medical students without experience of portfolios are anxious about portfolio introduction. They require support in developing reflective learning skills. Care must be taken to ensure students do not see portfolios as merely yet another assessment hurdle.

  18. Decentralized Portfolio Management

    Directory of Open Access Journals (Sweden)

    Benjamin Miranda Tabak

    2003-12-01

    Full Text Available We use a mean-variance model to analyze the problem of decentralized portfolio management. We find the solution for the optimal portfolio allocation for a head trader operating in n different markets, which is called the optimal centralized portfolio. However, as there are many traders specialized in different markets, the solution to the problem of optimal decentralized allocation should be different from the centralized case. In this paper we derive conditions for the solutions to be equivalent. We use multivariate normal returns and a negative exponential function to solve the problem analytically. We generate the equivalence of solutions by assuming that different traders face different interest rates for borrowing and lending. This interest rate is dependent on the ratio of the degrees of risk aversion of the trader and the head trader, on the excess return, and on the correlation between asset returns.

  19. Linearly Adjustable International Portfolios

    Science.gov (United States)

    Fonseca, R. J.; Kuhn, D.; Rustem, B.

    2010-09-01

    We present an approach to multi-stage international portfolio optimization based on the imposition of a linear structure on the recourse decisions. Multiperiod decision problems are traditionally formulated as stochastic programs. Scenario tree based solutions however can become intractable as the number of stages increases. By restricting the space of decision policies to linear rules, we obtain a conservative tractable approximation to the original problem. Local asset prices and foreign exchange rates are modelled separately, which allows for a direct measure of their impact on the final portfolio value.

  20. Linearly Adjustable International Portfolios

    International Nuclear Information System (INIS)

    Fonseca, R. J.; Kuhn, D.; Rustem, B.

    2010-01-01

    We present an approach to multi-stage international portfolio optimization based on the imposition of a linear structure on the recourse decisions. Multiperiod decision problems are traditionally formulated as stochastic programs. Scenario tree based solutions however can become intractable as the number of stages increases. By restricting the space of decision policies to linear rules, we obtain a conservative tractable approximation to the original problem. Local asset prices and foreign exchange rates are modelled separately, which allows for a direct measure of their impact on the final portfolio value.

  1. Agile Project Portfolio Management

    DEFF Research Database (Denmark)

    Andersen, Jesper Rank; Riis, Jens Ove; Mikkelsen, Hans

    2005-01-01

    This paper will provide a preliminary introduction to the application of Agile Thinking in management of project portfolio and company development. At any point in time, companies have a crowd of development initiatives spread around the organisation and managed at different levels...... in the managerial hierarchy. They compete for resources and managerial attention, and they often take too long time - and some do not survive in the rapid changing context. Top man¬agers ask for speed, flexibility and effectiveness in the portfolio of development activities (projects). But which competencies...

  2. Portfolio Analysis for Vector Calculus

    Science.gov (United States)

    Kaplan, Samuel R.

    2015-01-01

    Classic stock portfolio analysis provides an applied context for Lagrange multipliers that undergraduate students appreciate. Although modern methods of portfolio analysis are beyond the scope of vector calculus, classic methods reinforce the utility of this material. This paper discusses how to introduce classic stock portfolio analysis in a…

  3. Students' reflections in a portfolio pilot: highlighting professional issues.

    Science.gov (United States)

    Haffling, Ann-Christin; Beckman, Anders; Pahlmblad, Annika; Edgren, Gudrun

    2010-01-01

    Portfolios are highlighted as potential assessment tools for professional competence. Although students' self-reflections are considered to be central in the portfolio, the content of reflections in practice-based portfolios is seldom analysed. To investigate whether students' reflections include sufficient dimensions of professional competence, notwithstanding a standardized portfolio format, and to evaluate students' satisfaction with the portfolio. Thirty-five voluntary final-year medical students piloted a standardized portfolio in a general practice (GP) attachment at Lund University, Sweden. Students' portfolio reflections were based upon documentary evidence from practice, and aimed to demonstrate students' learning. The reflections were qualitatively analysed, using a framework approach. Students' evaluations of the portfolio were subjected to quantitative and qualitative analysis. Among professional issues, an integration of cognitive, affective and practical dimensions in clinical practice was provided by students' reflections. The findings suggested an emphasis on affective issues, particularly on self-awareness of feelings, attitudes and concerns. In addition, ethical problems, clinical reasoning strategies and future communication skills training were subjects of several reflective commentaries. Students' reflections on their consultation skills demonstrated their endeavour to achieve structure in the medical interview by negotiation of an agenda for the consultation, keeping the interview on track, and using internal summarizing. The importance of active listening and exploration of patient's perspective was also emphasized. In students' case summaries, illustrating characteristic attributes of GP, the dominating theme was 'patient-centred care', including the patient-doctor relationship, holistic modelling and longitudinal continuity. Students were satisfied with the portfolio, but improved instructions were needed. A standardized portfolio in a

  4. Evaluation of IP Portfolios

    DEFF Research Database (Denmark)

    Søberg, Peder Veng

    2009-01-01

    As a result of an inquiry concerning how to evaluate IP (intellectual property) portfolios in order to enable the best possible use of IP resources within organizations, an IP evaluation approach primarily applicable for patents and utility models is developed. The developed approach is useful...... of the organization owning the IP....

  5. Acreage portfolio management

    International Nuclear Information System (INIS)

    Schneider, Georges

    1994-01-01

    This chapter demonstrates the need for acreage portfolio management at the stage of maturity which has been reached in the UK sector of the North Sea petroleum industry. It outlines the goals, the main features of the deals and the business process. (UK)

  6. Portfolio, refleksion og feedback

    DEFF Research Database (Denmark)

    Hansen, Jens Jørgen; Qvortrup, Ane; Christensen, Inger-Marie F.

    2017-01-01

    Denne leder definerer indledningsvist begrebet portfolio og gør rede for anvendelsesmuligheder i en uddannelseskontekst. Dernæst behandles portfoliometodens kvalitet og effekt for læring og undervisning og de centrale begreber refleksion, progression og feedback præsenteres og diskuteres. Herefter...

  7. AN EXAMPLE FOR PORTFOLIO PREPARATION IN GERMAN TEACHER TRAINING

    Directory of Open Access Journals (Sweden)

    Hüseyin ARAK

    2017-04-01

    Full Text Available In this study we are trying with the help of portfolio in teacher training and the diagnosis of the learning group concerning their skills in translation from German to Turkish, to show the documentation of the learning process. The portfolio provides a good overview about the performance of the students and it also prepares a basis for assessment. A growing self-awareness of students can be achieved through implementing the portfolio-method. The students should collect and reflect the most important materials and practices leading to key terms of the seminar. It is more than an assessment method it is a surrounding of learning. The work with portfolio has an influence on teaching, learning and assessing. As in detail, this is dependent on the aims and other characteristics of the models which take the portfolio work as a basis. The portfolio provides us a big advantage for the support of the cultural reflection. We can observe the process of the growth of knowledge step by step, because the measurement of the development in a determined period allows us either a written work or a Multiple Choice Test. In this sense we can look at the portfolio as an assessment instrument of a process.

  8. Sparse and stable Markowitz portfolios.

    Science.gov (United States)

    Brodie, Joshua; Daubechies, Ingrid; De Mol, Christine; Giannone, Domenico; Loris, Ignace

    2009-07-28

    We consider the problem of portfolio selection within the classical Markowitz mean-variance framework, reformulated as a constrained least-squares regression problem. We propose to add to the objective function a penalty proportional to the sum of the absolute values of the portfolio weights. This penalty regularizes (stabilizes) the optimization problem, encourages sparse portfolios (i.e., portfolios with only few active positions), and allows accounting for transaction costs. Our approach recovers as special cases the no-short-positions portfolios, but does allow for short positions in limited number. We implement this methodology on two benchmark data sets constructed by Fama and French. Using only a modest amount of training data, we construct portfolios whose out-of-sample performance, as measured by Sharpe ratio, is consistently and significantly better than that of the naïve evenly weighted portfolio.

  9. Portfolio optimization retail investor

    Directory of Open Access Journals (Sweden)

    I. А. Kiseleva

    2016-01-01

    Full Text Available The article notes that the task of the investor's risk management is to, on the one hand, as much as possible to strive to achieve the criterion of risk level, and on the other hand, in any case not exceed it. Since the domestic theory of risk management is under development, the problem of the optimal ratio of "risk-income" becomes now of particular relevance. This article discusses the different distribution areas of the private investor in order to obtain the maximum profit. The analysis showed us the overall economic and political system of the country, as well as the legislative provision of guarantees to the investor. To obtain sufficient income and reduce losses it is important to maintain the optimum value found between the amount of the investor's risk and capital transactions. Model of optimal placement of funds led to the conclusion about inexpediency strong increase in the diversification of the investment portfolio (more than 10 different types of assets in the portfolio, since it increases the complexity of its practical form, while the portfolio characteristics are improved significantly. It is concluded that it is impossible to increase revenue without increasing the risk or reduce risk without reducing income. The analysis shows that there is no single best asset portfolio. It is impossible to increase revenue without increasing the risk or reduce risk without reducing income. Possible combination of the "riskincome" will depend on the objective function. Most diversified and bringing the best return per unit of risk, is a portfolio that contains the most risky assets.

  10. The regional electricity generation mix in Scotland: A portfolio selection approach incorporating marine technologies

    International Nuclear Information System (INIS)

    Allan, Grant; Eromenko, Igor; McGregor, Peter; Swales, Kim

    2011-01-01

    Standalone levelised cost assessments of electricity supply options miss an important contribution that renewable and non-fossil fuel technologies can make to the electricity portfolio: that of reducing the variability of electricity costs, and their potentially damaging impact upon economic activity. Portfolio theory applications to the electricity generation mix have shown that renewable technologies, their costs being largely uncorrelated with non-renewable technologies, can offer such benefits. We look at the existing Scottish generation mix and examine drivers of changes out to 2020. We assess recent scenarios for the Scottish generation mix in 2020 against mean-variance efficient portfolios of electricity-generating technologies. Each of the scenarios studied implies a portfolio cost of electricity that is between 22% and 38% higher than the portfolio cost of electricity in 2007. These scenarios prove to be mean-variance 'inefficient' in the sense that, for example, lower variance portfolios can be obtained without increasing portfolio costs, typically by expanding the share of renewables. As part of extensive sensitivity analysis, we find that Wave and Tidal technologies can contribute to lower risk electricity portfolios, while not increasing portfolio cost. - Research Highlights: → Portfolio analysis of scenarios for Scotland's electricity generating mix in 2020. → Reveals potential inefficiencies of selecting mixes based on levelised cost alone. → Portfolio risk-reducing contribution of Wave and Tidal technologies assessed.

  11. The regional electricity generation mix in Scotland: A portfolio selection approach incorporating marine technologies

    Energy Technology Data Exchange (ETDEWEB)

    Allan, Grant, E-mail: grant.j.allan@strath.ac.u [Fraser of Allander Institute, Department of Economics, University of Strathclyde, Sir William Duncan Building, 130 Rottenrow, Glasgow G4 0GE (United Kingdom); Eromenko, Igor; McGregor, Peter [Fraser of Allander Institute, Department of Economics, University of Strathclyde, Sir William Duncan Building, 130 Rottenrow, Glasgow G4 0GE (United Kingdom); Swales, Kim [Department of Economics, University of Strathclyde, Sir William Duncan Building, 130 Rottenrow, Glasgow G4 0GE (United Kingdom)

    2011-01-15

    Standalone levelised cost assessments of electricity supply options miss an important contribution that renewable and non-fossil fuel technologies can make to the electricity portfolio: that of reducing the variability of electricity costs, and their potentially damaging impact upon economic activity. Portfolio theory applications to the electricity generation mix have shown that renewable technologies, their costs being largely uncorrelated with non-renewable technologies, can offer such benefits. We look at the existing Scottish generation mix and examine drivers of changes out to 2020. We assess recent scenarios for the Scottish generation mix in 2020 against mean-variance efficient portfolios of electricity-generating technologies. Each of the scenarios studied implies a portfolio cost of electricity that is between 22% and 38% higher than the portfolio cost of electricity in 2007. These scenarios prove to be mean-variance 'inefficient' in the sense that, for example, lower variance portfolios can be obtained without increasing portfolio costs, typically by expanding the share of renewables. As part of extensive sensitivity analysis, we find that Wave and Tidal technologies can contribute to lower risk electricity portfolios, while not increasing portfolio cost. - Research Highlights: {yields} Portfolio analysis of scenarios for Scotland's electricity generating mix in 2020. {yields} Reveals potential inefficiencies of selecting mixes based on levelised cost alone. {yields} Portfolio risk-reducing contribution of Wave and Tidal technologies assessed.

  12. Analysing the Integration of Engineering in Science Lessons with the Engineering-Infused Lesson Rubric

    Science.gov (United States)

    Peterman, Karen; Daugherty, Jenny L.; Custer, Rodney L.; Ross, Julia M.

    2017-01-01

    Science teachers are being called on to incorporate engineering practices into their classrooms. This study explores whether the Engineering-Infused Lesson Rubric, a new rubric designed to target best practices in engineering education, could be used to evaluate the extent to which engineering is infused into online science lessons. Eighty lessons…

  13. The Use of Marking Rubrics in Management Education: Issues of Deconstruction and Andragogy

    Science.gov (United States)

    Cohen, Michael; Billsberry, Jon

    2014-01-01

    Advocates of rubrics have claimed that the inclusion of employers in the shaping of management education rubrics can help students demonstrate to employers that they have relevant managerial skills. There is an inevitable logic to this argument. Let employers determine what they want from graduates, and academics can then design programs to…

  14. Strategic innovation portfolio management

    Directory of Open Access Journals (Sweden)

    Stanković Ljiljana

    2015-01-01

    Full Text Available In knowledge-based economy, strategic innovation portfolio management becomes more and more important and critical factor of enterprise's success. Value creation for all the participants in value chain is more successful if it is based on efficient resource allocation and improvement of innovation performances. Numerous researches have shown that companies with best position on the market found their competitiveness on efficient development and exploitation of innovations. In decision making process, enterprise's management is constantly faced with challenge to allocate resources and capabilities as efficiently as possible, in both short and long term. In this paper authors present preliminary results of realized empirical research related to strategic innovation portfolio management in ten chosen enterprises in Serbia. The structure of the paper includes the following parts: theoretical background, explanation of research purpose and methodology, discussion of the results and concluding remarks, including limitations and directions for further research.

  15. Acreage portfolio management

    International Nuclear Information System (INIS)

    Schneider, G.M.

    1992-01-01

    This paper reports that the need for managing the acreage portfolio in the UK North Sea arises from fragmentation of holdings and complex field partnerships. The main concepts are building up the heartlands and balancing cashflow forecasts. This has generated a number of friendly win-win deals, motivated by differences in perception of values. The business process includes identifying, evaluating and negotiating deals. The Petroleum Economist plays a central role throughout this process, seeking value gaps and supporting negotiations. Variations in reserves estimates present a major source of value gaps between buyer and seller. Economists need to work closely with engineers and geologists. Portfolio management is an exciting and challenging task which broadens the traditional role of the Petroleum Economist

  16. On portfolio risk diversification

    Science.gov (United States)

    Takada, Hellinton H.; Stern, Julio M.

    2017-06-01

    The first portfolio risk diversification strategy was put into practice by the All Weather fund in 1996. The idea of risk diversification is related to the risk contribution of each available asset class or investment factor to the total portfolio risk. The maximum diversification or the risk parity allocation is achieved when the set of risk contributions is given by a uniform distribution. Meucci (2009) introduced the maximization of the Rényi entropy as part of a leverage constrained optimization problem to achieve such diversified risk contributions when dealing with uncorrelated investment factors. A generalization of the risk parity is the risk budgeting when there is a prior for the distribution of the risk contributions. Our contribution is the generalization of the existent optimization frameworks to be able to solve the risk budgeting problem. In addition, our framework does not possess any leverage constraint.

  17. Hvorfor anvende portfolio eksamen?

    DEFF Research Database (Denmark)

    Elley, Tina Ninka

    2015-01-01

    from the clinical part. The two topics are weighted according to the distribution of ECTS points between theory and clinic. We implemented the portfolio format in November 2012, and the evaluations from the students have shown that the format is good; the students get less stressed at the exam......In Denmark the Biomedical Laboratory Scientist programme lasts for 3½ years, divided into 14 modules of 10 weeks. Every module concludes with an exam, which can be very stressful for the students. A survey was made among the students, confirming this. How can we change some of the exams in order...... to minimize the students' stress level? Then the pedagogical considerations started – where and how to do this? The conclusion was to work with the portfolio format at module 6 and module 7 and make it the exam form, as it was possible to divide the expected learning outcome for the two modules into topics...

  18. Acreage portfolio management

    International Nuclear Information System (INIS)

    Schneider

    1992-01-01

    This paper reports that the need to manage U.K. North Sea acreage portfolios arises from fragmentation of holdings and complex partnerships. This management has generated friendly rationalization deals motivated by differences in perception of values and aimed at building up heartlands and balancing cash-flow forecasts. The business process includes identifying, evaluating, and negotiating deals. The economist plays a central role within the evaluation team and supports the negotiators

  19. MANAGING THE USE OF DERIVATIVE INSTRUMENTS FOR PORTFOLIO RISK PURPOSES

    Directory of Open Access Journals (Sweden)

    Mădălina Antoaneta RĂDOI

    2017-05-01

    Full Text Available The priority in portfolio management is a good risk assessment and management. Of great importance is the margin that an asset portfolio guarantor must use with specific expertise in certain areas of market temporal inefficiency in order to improve its management performance. The relevant validity of the financial market and the emphasis laid on risk management carried along the development of financial instruments tailored to risk management. New derivative financial instruments have revolutionized the methods of portfolio management, of corporate treasury management, of banking management and, more generally, all financial strategies.

  20. Statistically Efficient Construction of α-Risk-Minimizing Portfolio

    Directory of Open Access Journals (Sweden)

    Hiroyuki Taniai

    2012-01-01

    Full Text Available We propose a semiparametrically efficient estimator for α-risk-minimizing portfolio weights. Based on the work of Bassett et al. (2004, an α-risk-minimizing portfolio optimization is formulated as a linear quantile regression problem. The quantile regression method uses a pseudolikelihood based on an asymmetric Laplace reference density, and asymptotic properties such as consistency and asymptotic normality are obtained. We apply the results of Hallin et al. (2008 to the problem of constructing α-risk-minimizing portfolios using residual signs and ranks and a general reference density. Monte Carlo simulations assess the performance of the proposed method. Empirical applications are also investigated.

  1. Portfolio careers for medical graduates: implications for postgraduate training and workforce planning.

    Science.gov (United States)

    Eyre, Harris A; Mitchell, Rob D; Milford, Will; Vaswani, Nitin; Moylan, Steven

    2014-06-01

    Portfolio careers in medicine can be defined as significant involvement in one or more portfolios of activity beyond a practitioner's primary clinical role, either concurrently or in sequence. Portfolio occupations may include medical education, research, administration, legal medicine, the arts, engineering, business and consulting, leadership, politics and entrepreneurship. Despite significant interest among junior doctors, portfolios are poorly integrated with prevocational and speciality training programs in Australia. The present paper seeks to explore this issue. More formal systems for portfolio careers in Australia have the potential to increase job satisfaction, flexibility and retention, as well as diversify trainee skill sets. Although there are numerous benefits from involvement in portfolio careers, there are also risks to the trainee, employing health service and workforce modelling. Formalising pathways to portfolio careers relies on assessing stakeholder interest, enhancing flexibility in training programs, developing support programs, mentorship and coaching schemes and improving support structures in health services.

  2. Cluster analysis for portfolio optimization

    OpenAIRE

    Vincenzo Tola; Fabrizio Lillo; Mauro Gallegati; Rosario N. Mantegna

    2005-01-01

    We consider the problem of the statistical uncertainty of the correlation matrix in the optimization of a financial portfolio. We show that the use of clustering algorithms can improve the reliability of the portfolio in terms of the ratio between predicted and realized risk. Bootstrap analysis indicates that this improvement is obtained in a wide range of the parameters N (number of assets) and T (investment horizon). The predicted and realized risk level and the relative portfolio compositi...

  3. Do portfolios have a future?

    Science.gov (United States)

    Driessen, Erik

    2017-03-01

    While portfolios have seen an unprecedented surge in popularity, they have also become the subject of controversy: learners often perceive little gain from writing reflections as part of their portfolios; scholars question the ethics of such obligatory reflection; and students, residents, teachers and scholars alike condemn the bureaucracy surrounding portfolio implementation in competency-based education. It could be argued that mass adoption without careful attention to purpose and format may well jeopardize portfolios' viability in health sciences education. This paper explores this proposition by addressing the following three main questions: (1) Why do portfolios meet with such resistance from students and teachers, while educators love them?; (2) Is it ethical to require students to reflect and then grade their reflections?; (3) Does competency-based education empower or hamper the learner during workplace-based learning? Twenty-five years of portfolio reveal a clear story: without mentoring, portfolios have no future and are nothing short of bureaucratic hurdles in our competency-based education programs. Moreover, comprehensive portfolios, which are integrated into the curriculum and much more diverse in content than reflective portfolios, can serve as meaningful patient charts, providing doctor and patient with useful information to discuss well-being and treatment. In this sense, portfolios are also learner charts that comprehensively document progress in a learning trajectory which is lubricated by meaningful dialogue between learner and mentor in a trusting relationship to foster learning. If we are able to make such comprehensive and meaningful use of portfolios, then, yes, portfolios do have a bright future in medical education.

  4. Project Portfolio Management Applications Testing

    OpenAIRE

    Paul POCATILU

    2006-01-01

    Many IT companies are running project simultaneously. In order to achieve the best results, they have to group to the project in portfolios, and to use specific software that helps to manage them. Project portfolio management applications have a high degree of complexity and they are very important for the companies that are using it. This paper focuses on some characteristics of the testing process for project portfolio management applications

  5. Project Portfolio Management Applications Testing

    Directory of Open Access Journals (Sweden)

    Paul POCATILU

    2006-01-01

    Full Text Available Many IT companies are running project simultaneously. In order to achieve the best results, they have to group to the project in portfolios, and to use specific software that helps to manage them. Project portfolio management applications have a high degree of complexity and they are very important for the companies that are using it. This paper focuses on some characteristics of the testing process for project portfolio management applications

  6. Portfolio insurance using traded options

    OpenAIRE

    Machado-Santos, Carlos

    2001-01-01

    Literature concerning the institutional use of options indicates that the main purpose of option trading is to provide investors with the opportunity to create return distributions previously unavailable, considering that options provide the means to manipulate portfolio returns. In such a context, this study intends to analyse the returns of insured portfolios generated by hedging strategies on underlying stock portfolios. Because dynamic hedging is too expensive, we have hedged the stock po...

  7. Financial Advice and Individual Investor Portfolio Performance

    NARCIS (Netherlands)

    Kramer, M.M.

    2012-01-01

    This paper investigates whether financial advisers add value to individual investors portfolio decisions by comparing portfolios of advised and self-directed (execution-only) Dutch individual investors. The results indicate significant differences in characteristics and portfolios between these

  8. The Use of Rubrics in Benchmarking and Assessing Employability Skills

    Science.gov (United States)

    Riebe, Linda; Jackson, Denise

    2014-01-01

    Calls for employability skill development in undergraduates now extend across many culturally similar developed economies. Government initiatives, industry professional accreditation criteria, and the development of academic teaching and learning standards increasingly drive the employability agenda, further cementing the need for skill…

  9. A Rubric for Assessing Students' Experimental Problem-Solving Ability

    Science.gov (United States)

    Shadle, Susan E.; Brown, Eric C.; Towns, Marcy H.; Warner, Don L.

    2012-01-01

    The ability to couple problem solving both to the understanding of chemical concepts and to laboratory practices is an essential skill for undergraduate chemistry programs to foster in our students. Therefore, chemistry programs must offer opportunities to answer real problems that require use of problem-solving processes used by practicing…

  10. Portfolio langagier en francais (Language Portfolios in French).

    Science.gov (United States)

    Laplante, Bernard; Christiansen, Helen

    2001-01-01

    Suggests that first-year college students learning French should create a language portfolio that contains documents that illustrate what they have learned in French, along with a brief statement of what linguistic skill the document demonstrates. The goal of the portfolio is to make students more aware of their own learning, their strengths, and…

  11. A Rubric to Enrich Student Writing and Understanding

    Directory of Open Access Journals (Sweden)

    Teresa L Larkin

    2015-05-01

    Full Text Available The importance of effective communication, both written and oral, has been widely documented within the STEM community. In fact, the ability to communicate effectively is a skillset that is often required by employers. Oftentimes it is challenging to make the transition from academia to the work place. The ability to communicate well is a critical element of this transition. This paper will describe a more authentic experience using a professional conference format that provides students an opportunity to sharpen both their written and oral communication skills. The professional conference paper activity has been utilized in a second-level physics course at American University for 15 years. The conference paper activity allows students to experience all aspects of a professional conference, which is something that they do not get in other courses. This paper will describe the conference paper activity and focus on the use of a rubric that has recently been implemented in order to assist students during multiple phases of the writing process. Through the conference paper, students must communicate about a technical topic in physics while simultaneously connecting that topic to their major field of study. Numerous steps are involved in the paper writing process and each one is designed to emulate an actual conference. The conference paper activity and the associated rubric discussed in this paper offer a unique opportunity for multiple points of feedback, both from the instructor and from their classmates, while the writing process is taking place. Too often in academia a writing activity is designed in such a way that students merely submit their final written papers for a grade. Once a final paper is submitted, there is no opportunity for feedback that will aid in the actual development and writing of the paper. A more traditional paper writing experience does not provide opportunities for formative feedback prior to submission of the final

  12. 網路化檔案評量環境下教學者評、學生自評與同儕 互評之信效度比較 Comparisons of Reliability and Validity among Instructor Assessment, Student Self-Assessment and Peer-Assessment under Web-Based Portfolio Assessment Environment

    Directory of Open Access Journals (Sweden)

    Chi-Cheng Chang

    2011-09-01

    Full Text Available 本研究比較網路化檔案評量環境下教學者評、學生自評與同儕互評的信效度。研究樣本為某高職二年級修習「計算機應用」課程的七十二位學生。學生使用網路化檔案評量系統進行檔案的製作、觀摩、自評與同儕互評,教師透過系統檢視學生的檔案並評量其學習表現。在三種評量結果之間差異上,教學者評、學生自評、同儕互評三種評量結果有顯著差異,其中教學者評量最為嚴格、其次為學生自評,同儕互評最為寬鬆。在三種評量結果之間一致性上,僅自評與教師評之間具一致性。自評與同儕互評之間、同儕互評與教學者評之間,都不具一致性。在三種評量結果與測驗成績一致性上,教學者評分結果與測驗成績具高度一致性,學生自評與測驗成績亦具高度一致性;而同儕互評結果與測驗成績一致性低。This study compares the reliable and validity among instructor assessment, student self-assessment and peer-assessment under the Web-based portfolio assessment environment. The research samples consist of 72 students who take “Computer Application” course of the second grade in some vocational high school. The students use the Web-based portfolio assessment system for creating their portfolio, emulating peers’ portfolio, and performing self-assessment and peer-assessment. The teacher uses the system for reviewing and assessing students’ learning performances. In regard to the difference among the three assessment approaches, there exists a significant difference among the three approaches. Instructor assessment is most rigorous, while peer-assessment is most slack. In regard to the correlation among the three assessment approaches, there exists a significant consistency between self-assessment and instructor assessment. There exist inconsistencies between self-assessment and peer-assessment as well as peer-assessment

  13. UK Household Portfolios

    OpenAIRE

    Banks, James; Smith, Sarah

    2000-01-01

    This paper presents a detailed analysis of the composition of household portfolios, using both aggregate and micro-data. Among the key findings are that: Most household wealth is held in the form of housing and pensions. Over time, there has been a shift away from housing towards financial assets, driven largely by the growth in life and pension funds. Liquid financial wealth (excluding life and pension funds) is not predominantly held in risky form. By far the most commonly held asset is an ...

  14. IT Portfolio Management

    DEFF Research Database (Denmark)

    Hansen, Lars Kristian; Kræmmergaard, Pernille

    2012-01-01

    As public organizations increasingly rely on IT-enabled development to provide faster cycle times and better services, IT Project Portfolio Management (IT PPM) has become a high priority issue. This research adopts engaged scholarship to investigate IT PPM practices within a large local government...... information about internal recourses, (4) Lack of operational goals to hold IT projects accountable, (5) No account of actual IT project costs. These results may be used to inform further research into IT PPM and to help managers improve IT PPM practices in public organizations in their effort of increase...

  15. Portfolios of quantum algorithms.

    Science.gov (United States)

    Maurer, S M; Hogg, T; Huberman, B A

    2001-12-17

    Quantum computation holds promise for the solution of many intractable problems. However, since many quantum algorithms are stochastic in nature they can find the solution of hard problems only probabilistically. Thus the efficiency of the algorithms has to be characterized by both the expected time to completion and the associated variance. In order to minimize both the running time and its uncertainty, we show that portfolios of quantum algorithms analogous to those of finance can outperform single algorithms when applied to the NP-complete problems such as 3-satisfiability.

  16. Æstetik og portfolio

    DEFF Research Database (Denmark)

    Hyldahl, Kirsten Kofod; Sams, Pernille; Egelund, Karen Stine

    2017-01-01

    Nærværende artikel præsenterer resultaterne af udviklingsprojektet ”Portfolio og æstetik” på pædagoguddannelsen i Hjørring. Projektet har til formål, gennem æstetisk formsprog, at stilladsere og fastholde de studerendes læreprocesser samt udvikle og implementere portfolio i studieaktiviteter på...

  17. Applying the partitioned multiobjective risk method (PMRM) to portfolio selection.

    Science.gov (United States)

    Reyes Santos, Joost; Haimes, Yacov Y

    2004-06-01

    The analysis of risk-return tradeoffs and their practical applications to portfolio analysis paved the way for Modern Portfolio Theory (MPT), which won Harry Markowitz a 1992 Nobel Prize in Economics. A typical approach in measuring a portfolio's expected return is based on the historical returns of the assets included in a portfolio. On the other hand, portfolio risk is usually measured using volatility, which is derived from the historical variance-covariance relationships among the portfolio assets. This article focuses on assessing portfolio risk, with emphasis on extreme risks. To date, volatility is a major measure of risk owing to its simplicity and validity for relatively small asset price fluctuations. Volatility is a justified measure for stable market performance, but it is weak in addressing portfolio risk under aberrant market fluctuations. Extreme market crashes such as that on October 19, 1987 ("Black Monday") and catastrophic events such as the terrorist attack of September 11, 2001 that led to a four-day suspension of trading on the New York Stock Exchange (NYSE) are a few examples where measuring risk via volatility can lead to inaccurate predictions. Thus, there is a need for a more robust metric of risk. By invoking the principles of the extreme-risk-analysis method through the partitioned multiobjective risk method (PMRM), this article contributes to the modeling of extreme risks in portfolio performance. A measure of an extreme portfolio risk, denoted by f(4), is defined as the conditional expectation for a lower-tail region of the distribution of the possible portfolio returns. This article presents a multiobjective problem formulation consisting of optimizing expected return and f(4), whose solution is determined using Evolver-a software that implements a genetic algorithm. Under business-as-usual market scenarios, the results of the proposed PMRM portfolio selection model are found to be compatible with those of the volatility-based model

  18. PORTFOLIO ANALYSIS BASED ON THE EXAMPLE OF ZAGREB STOCK EXCHANGE

    Directory of Open Access Journals (Sweden)

    Sinisa Bogdan

    2010-06-01

    Full Text Available In this paper we analyze the portfolio that was selected from the Zagreb Stock Exchange and also try to assess its risks and its future offerings that are relevant in making the decisions about investments. Through the work we will explain the importance of diversification and how the very diversification reduces risk. We will also analyze the systemic risk of individual stocks within the portfolio and the systemic risk of the given portfolio and explain its importance. Through regression analysis we will analyze the securities with the highest and lowest systemic risk and will clarify the results. At the end we will explain the correlation in the selected portfolio and point out the importance of the correlation and diversification itself.

  19. Regularizing portfolio optimization

    International Nuclear Information System (INIS)

    Still, Susanne; Kondor, Imre

    2010-01-01

    The optimization of large portfolios displays an inherent instability due to estimation error. This poses a fundamental problem, because solutions that are not stable under sample fluctuations may look optimal for a given sample, but are, in effect, very far from optimal with respect to the average risk. In this paper, we approach the problem from the point of view of statistical learning theory. The occurrence of the instability is intimately related to over-fitting, which can be avoided using known regularization methods. We show how regularized portfolio optimization with the expected shortfall as a risk measure is related to support vector regression. The budget constraint dictates a modification. We present the resulting optimization problem and discuss the solution. The L2 norm of the weight vector is used as a regularizer, which corresponds to a diversification 'pressure'. This means that diversification, besides counteracting downward fluctuations in some assets by upward fluctuations in others, is also crucial because it improves the stability of the solution. The approach we provide here allows for the simultaneous treatment of optimization and diversification in one framework that enables the investor to trade off between the two, depending on the size of the available dataset.

  20. Regularizing portfolio optimization

    Science.gov (United States)

    Still, Susanne; Kondor, Imre

    2010-07-01

    The optimization of large portfolios displays an inherent instability due to estimation error. This poses a fundamental problem, because solutions that are not stable under sample fluctuations may look optimal for a given sample, but are, in effect, very far from optimal with respect to the average risk. In this paper, we approach the problem from the point of view of statistical learning theory. The occurrence of the instability is intimately related to over-fitting, which can be avoided using known regularization methods. We show how regularized portfolio optimization with the expected shortfall as a risk measure is related to support vector regression. The budget constraint dictates a modification. We present the resulting optimization problem and discuss the solution. The L2 norm of the weight vector is used as a regularizer, which corresponds to a diversification 'pressure'. This means that diversification, besides counteracting downward fluctuations in some assets by upward fluctuations in others, is also crucial because it improves the stability of the solution. The approach we provide here allows for the simultaneous treatment of optimization and diversification in one framework that enables the investor to trade off between the two, depending on the size of the available dataset.

  1. Analysis of the Capability Portfolio Review (CPR)

    Science.gov (United States)

    2014-06-01

    10  2.4.1.1.  The Basics of Modern Portfolio Theory ...of Modern Portfolio Theory Much of modern portfolio management has been motivated by the influential work of Harry Markowitz (Markowitz, 1952) and...unsystematic risk associated with individual stocks, leaving only the generally market risk (Walls, 2004). The basic assumption of modern portfolio theory is

  2. 12 CFR 347.108 - Portfolio investments.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Portfolio investments. 347.108 Section 347.108... INTERNATIONAL BANKING § 347.108 Portfolio investments. (a) Portfolio investments. If a bank, directly or indirectly, acquires or holds an equity interest in a foreign organization as a portfolio investment and the...

  3. The development of the portfolio management for the unit investment funds

    OpenAIRE

    Sergeeva, Irina; Nikiforova, Vera

    2012-01-01

    The paper analyses common Russian practice of assessment of the effectiveness of the unit investment fund portfolio management based on the risk/return tradeoff. The paper identifies characteristics, advantages and disadvantages of various portfolio risk measures, and introduces the approach to risk assessment based on the analytical coefficient calculations.

  4. Motivating Freshman Students in a Business Management Course via Portfolios: Practice from a Greek Public University

    Science.gov (United States)

    Papadimitriou, Antigoni

    2009-01-01

    There are many ways to approach the evaluation of student learning. Portfolios, as collections of student work, are an increasingly popular assessment strategy, especially in the United States. Portfolios provide an exceptionally comprehensive picture of student learning. However, this assessment method requires extra effort to plan, to evaluate,…

  5. Towards a TENCompetence ePortfolio

    Directory of Open Access Journals (Sweden)

    Adriana J. Berlanga

    2008-07-01

    Full Text Available This article argues that the TENCompetence ePortfolio definition should integrate rhetorical, pedagogical, social, and technical perspectives. The rhetorical perspective is needed to show the learner’s competences, achievements and history; the pedagogical perspective aims at supporting learner’s self-reflection, through the definition of competences mastered, review and creation of (new competence development plans, and assessment of competences; the social perspective aims at fostering interaction and social help support; and the technical perspective aims at supporting the other three perspectives. Guiding principles for the design of the TENCompetence ePortfolio are provided, and the aforementioned perspectives detailed.

  6. Analysing the integration of engineering in science lessons with the Engineering-Infused Lesson Rubric

    Science.gov (United States)

    Peterman, Karen; Daugherty, Jenny L.; Custer, Rodney L.; Ross, Julia M.

    2017-09-01

    Science teachers are being called on to incorporate engineering practices into their classrooms. This study explores whether the Engineering-Infused Lesson Rubric, a new rubric designed to target best practices in engineering education, could be used to evaluate the extent to which engineering is infused into online science lessons. Eighty lessons were selected at random from three online repositories, and coded with the rubric. Overall results documented the strengths of existing lessons, as well as many components that teachers might strengthen. In addition, a subset of characteristics was found to distinguish lessons with the highest level of engineering infusion. Findings are discussed in relation to the potential of the rubric to help teachers use research evidence-informed practice generally, and in relation to the new content demands of the U.S. Next Generation Science Standards, in particular.

  7. The language and style of Latin rubrics in medieval liturgical Easter drama

    Czech Academy of Sciences Publication Activity Database

    Vršecká-Kvízová, Kateřina

    -, č. 71 (2013), s. 267-280 ISSN 1376-7453 R&D Projects: GA MŠk(CZ) LD13043 Institutional support: RVO:67985955 Keywords : Easter drama * Medieval Latin * Latin rubrics Subject RIV: AI - Linguistics

  8. Rubrics Cubed: Are We Prisoners of ORSA-Style Decision-Making?

    National Research Council Canada - National Science Library

    Paparone, Christopher R; Crupi, James A

    2006-01-01

    ... and the valuable insights that can be derived from them. The three alternative rubrics explained by the authors include: programmatic (by-the-book), participative (politics), and emergent (complex or chaotic) decisionmaking...

  9. Portfolio optimization and performance evaluation

    DEFF Research Database (Denmark)

    Juhl, Hans Jørn; Christensen, Michael

    2013-01-01

    Based on an exclusive business-to-business database comprising nearly 1,000 customers, the applicability of portfolio analysis is documented, and it is examined how such an optimization analysis can be used to explore the growth potential of a company. As opposed to any previous analyses, optimal...... customer portfolios are determined, and it is shown how marketing decision-makers can use this information in their marketing strategies to optimize the revenue growth of the company. Finally, our analysis is the first analysis which applies portfolio based methods to measure customer performance......, and it is shown how these performance measures complement the optimization analysis....

  10. Portfolio management: Finding growth opportunities in a restructured electricity marketplace. Final report

    International Nuclear Information System (INIS)

    Staley, J.; Patterson, A.; Gardner, T.

    1997-12-01

    implementing a portfolio management process. This report describes a four-phase project design that covers the mobilization, assessment, design, and implementation of a portfolio management process

  11. Parametric Portfolio Selection: Evaluating and Comparing to Markowitz Portfolios

    Directory of Open Access Journals (Sweden)

    Marcelo C. Medeiros

    2014-10-01

    Full Text Available In this paper we exploit the parametric portfolio optimization in the Brazilian market. Our data consists of monthly returns of 306 Brazilian stocks in the period between 2001 and 2013. We tested the model both in and out of sample and compared the results with the value and equal weighted portfolios and with a Markowitz based portfolio. We performed statistical inference in the parametric optimization using bootstrap techniques in order to build the parameters empirical distributions. Our results showed that the parametric optimization is a very efficient technique out of sample. It consistently showed superior results when compared with the VW, EW and Markowitz portfolios even when transaction costs were included. Finally, we consider the parametric approach to be very flexible to the inclusion of constraints in weights, transaction costs and listing and delisting of stocks.

  12. Portfolio i Praksis

    DEFF Research Database (Denmark)

    Saltofte, Margit; Krill, Cecilia

    . Præsentationsfolien fokuserer på at præsentere et færdigt produkt eller resultat, mens arbejdsportfolien har fokus på proces, refleksion og læring. Til denne forskel knytter sig desuden helt naturligt en sondring imellem det delte og det private. Hvor præsentationsportfolio per definition er åben og har en modtager i...... sigte, er arbejdsportfolien i udgangspunktet lukket og privat. Det vil sige at man selv udvælger, hvad der skal ses af fx vejleder eller medstuderende – og hvad, der skal forblive privat. Portfolio i Praksis tilbyder desuden en række håndgribelige øvelser, der kan bruges som hjælp til at understøtte det...

  13. IT Portfolio Management

    DEFF Research Database (Denmark)

    Hansen, Lars Kristian; Kræmmergaard, Pernille

    2012-01-01

    information about internal recourses, (4) Lack of operational goals to hold IT projects accountable, (5) No account of actual IT project costs. These results may be used to inform further research into IT PPM and to help managers improve IT PPM practices in public organizations in their effort of increase......As public organizations increasingly rely on IT-enabled development to provide faster cycle times and better services, IT Project Portfolio Management (IT PPM) has become a high priority issue. This research adopts engaged scholarship to investigate IT PPM practices within a large local government...... on the theory’s distinction between different modes of control five problems in control is identified: (1) weak accountability processes between the political and the administrative level, (2) weak accountability processes between director level and the IT executives, (3) IT projects established on incomplete...

  14. AREVA's nuclear reactors portfolio

    International Nuclear Information System (INIS)

    Marincic, A.

    2009-01-01

    A reasonable assumption for the estimated new build market for the next 25 years is over 340 GWe net. The number of prospect countries is growing almost each day. To address this new build market, AREVA is developing a comprehensive portfolio of reactors intended to meet a wide range of power requirements and of technology choices. The EPR reactor is the flagship of the fleet. Intended for large power requirements, the four first EPRs are being built in Finland, France and China. Other countries and customers are in view, citing just two examples: the Usa where the U.S. EPR has been selected as the technology of choice by several U.S utilities; and the United Kingdom where the Generic Design Acceptance process of the EPR design submitted by AREVA and EDF is well under way, and where there is a strong will to have a plant on line in 2017. For medium power ranges, the AREVA portfolio includes a boiling water reactor and a pressurized water reactor which both offer all of the advantages of an advanced plant design, with excellent safety performance and competitive power generation cost: -) KERENA (1250+ MWe), developed in collaboration with several European utilities, and in particular with Eon; -) ATMEA 1 (1100+ MWe), a 3-loop evolutionary PWR which is being developed by AREVA and Mitsubishi. AREVA is also preparing the future and is deeply involved into Gen IV concepts. It has developed the ANTARES modular HTR reactor (pre-conceptual design completed) and is building upon its vast Sodium Fast Reactor experience to take part into the development of the next prototype. (author)

  15. Successful healthcare programs and projects: organization portfolio management essentials.

    Science.gov (United States)

    Pickens, Scott; Solak, Jamie

    2005-01-01

    Many healthcare organization projects take more time and resources than planned and fail to deliver desired business outcomes. Healthcare IT is a major component of many projects and often undeservedly receives the blame for failure. Poor results are often not a result of faulty healthcare IT or poor project management or poor project execution alone. Many projects fail because of poor portfolio management--poor planning and management of the portfolio of initiatives designed to meet an organization's strategic goals. Because resources are limited, portfolio management enables organizations to more strategically allocate and manage their resources so care delivery, service delivery, and initiatives that advance organizations toward their strategic goals, including healthcare IT initiatives, can be accomplished at the levels of quality and service desired by an organization. Proper portfolio management is the essential foundation for program and project success and supports overall organization success. Without portfolio management, even programs and projects that execute flawlessly may not meet desired objectives. This article discusses the essential requirements for porfolio management. These include opportunity identification, return on investment (ROI) forecast, project prioritization, capacity planning (inclusive of human, financial, capital, and facilities resources), work scheduling, program and project management and execution, and project performance and value assessment. Portfolio management is essential to successful healthcare project execution. Theories are drawn from the Organizational Project Management Maturity Model (OPM3) work of the Project Management Institute and other leading strategy, planning, and organization change management research institutes.

  16. A Mean variance analysis of arbitrage portfolios

    Science.gov (United States)

    Fang, Shuhong

    2007-03-01

    Based on the careful analysis of the definition of arbitrage portfolio and its return, the author presents a mean-variance analysis of the return of arbitrage portfolios, which implies that Korkie and Turtle's results ( B. Korkie, H.J. Turtle, A mean-variance analysis of self-financing portfolios, Manage. Sci. 48 (2002) 427-443) are misleading. A practical example is given to show the difference between the arbitrage portfolio frontier and the usual portfolio frontier.

  17. 78 FR 21045 - Confirmation, Portfolio Reconciliation, Portfolio Compression, and Swap Trading Relationship...

    Science.gov (United States)

    2013-04-09

    ... COMMODITY FUTURES TRADING COMMISSION 17 CFR Part 23 RIN 3038-AC96 Confirmation, Portfolio Reconciliation, Portfolio Compression, and Swap Trading Relationship Documentation Requirements for Swap Dealers... CFTC published final rules setting forth requirements for swap confirmation, portfolio reconciliation...

  18. Optimal Portfolios in Wishart Models and Effects of Discrete Rebalancing on Portfolio Distribution and Strategy Selection

    OpenAIRE

    Li, Zejing

    2012-01-01

    This dissertation is mainly devoted to the research of two problems - the continuous-time portfolio optimization in different Wishart models and the effects of discrete rebalancing on portfolio wealth distribution and optimal portfolio strategy.

  19. Data Management Rubric for Video Data in Organismal Biology.

    Science.gov (United States)

    Brainerd, Elizabeth L; Blob, Richard W; Hedrick, Tyson L; Creamer, Andrew T; Müller, Ulrike K

    2017-07-01

    Standards-based data management facilitates data preservation, discoverability, and access for effective data reuse within research groups and across communities of researchers. Data sharing requires community consensus on standards for data management, such as storage and formats for digital data preservation, metadata (i.e., contextual data about the data) that should be recorded and stored, and data access. Video imaging is a valuable tool for measuring time-varying phenotypes in organismal biology, with particular application for research in functional morphology, comparative biomechanics, and animal behavior. The raw data are the videos, but videos alone are not sufficient for scientific analysis. Nearly endless videos of animals can be found on YouTube and elsewhere on the web, but these videos have little value for scientific analysis because essential metadata such as true frame rate, spatial calibration, genus and species, weight, age, etc. of organisms, are generally unknown. We have embarked on a project to build community consensus on video data management and metadata standards for organismal biology research. We collected input from colleagues at early stages, organized an open workshop, "Establishing Standards for Video Data Management," at the Society for Integrative and Comparative Biology meeting in January 2017, and then collected two more rounds of input on revised versions of the standards. The result we present here is a rubric consisting of nine standards for video data management, with three levels within each standard: good, better, and best practices. The nine standards are: (1) data storage; (2) video file formats; (3) metadata linkage; (4) video data and metadata access; (5) contact information and acceptable use; (6) camera settings; (7) organism(s); (8) recording conditions; and (9) subject matter/topic. The first four standards address data preservation and interoperability for sharing, whereas standards 5-9 establish minimum metadata

  20. Essays on Rational Portfolio Theory

    DEFF Research Database (Denmark)

    Nielsen, Simon Ellersgaard

    market prices, we findonly a very modest improvement in portfolio wealth over the corresponding strategy whichonly trades in bonds and stocks. Optimal Hedge Tracking Portfolios in a Limit Order Book. In this paper we developa control theoretic solution to the manner in which a portfolio manager optimally...... shouldtrack a targeted D, given that he wishes to hedge a short position in European call optionsthe underlying of which is traded in a limit order book. Specifically, we are interested in theinterplay between posting limit and market orders respectively: when should the portfoliomanager do what (and at what......’s theory of optimal portfolio selection for wealth maximisingagents. In this paper we present a systematic analysis of the optimal asset allocation in aderivative-free market for the Heston model, the 3/2 model, and a Fong Vasicek type model.Under the assumption that the market price of risk...

  1. Robust Portfolio Optimization Using Pseudodistances.

    Science.gov (United States)

    Toma, Aida; Leoni-Aubin, Samuela

    2015-01-01

    The presence of outliers in financial asset returns is a frequently occurring phenomenon which may lead to unreliable mean-variance optimized portfolios. This fact is due to the unbounded influence that outliers can have on the mean returns and covariance estimators that are inputs in the optimization procedure. In this paper we present robust estimators of mean and covariance matrix obtained by minimizing an empirical version of a pseudodistance between the assumed model and the true model underlying the data. We prove and discuss theoretical properties of these estimators, such as affine equivariance, B-robustness, asymptotic normality and asymptotic relative efficiency. These estimators can be easily used in place of the classical estimators, thereby providing robust optimized portfolios. A Monte Carlo simulation study and applications to real data show the advantages of the proposed approach. We study both in-sample and out-of-sample performance of the proposed robust portfolios comparing them with some other portfolios known in literature.

  2. Application of Markowitz Portfolio Theory by Building Optimal Portfolio on the US Stock Market

    OpenAIRE

    Širůček, Martin; Křen, Lukáš

    2015-01-01

    ŠIRŮČEK MARTIN, KŘEN LUKÁŠ. 2015. Application of Markowitz Portfolio Theory by Building Optimal Portfolio on the US Stock Market. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 63(4): 1375–1386. This paper is focused on building investment portfolios by using the Markowitz Portfolio Theory (MPT). Derivation based on the Capital Asset Pricing Model (CAPM) is used to calculate the weights of individual securities in portfolios. The calculated portfolios include a po...

  3. portfolio optimization based on nonparametric estimation methods

    Directory of Open Access Journals (Sweden)

    mahsa ghandehari

    2017-03-01

    Full Text Available One of the major issues investors are facing with in capital markets is decision making about select an appropriate stock exchange for investing and selecting an optimal portfolio. This process is done through the risk and expected return assessment. On the other hand in portfolio selection problem if the assets expected returns are normally distributed, variance and standard deviation are used as a risk measure. But, the expected returns on assets are not necessarily normal and sometimes have dramatic differences from normal distribution. This paper with the introduction of conditional value at risk ( CVaR, as a measure of risk in a nonparametric framework, for a given expected return, offers the optimal portfolio and this method is compared with the linear programming method. The data used in this study consists of monthly returns of 15 companies selected from the top 50 companies in Tehran Stock Exchange during the winter of 1392 which is considered from April of 1388 to June of 1393. The results of this study show the superiority of nonparametric method over the linear programming method and the nonparametric method is much faster than the linear programming method.

  4. The regional electricity generation mix in Scotland. A portfolio selection approach incorporating marine technologies

    Energy Technology Data Exchange (ETDEWEB)

    Allan, Grant; Eromenko, Igor; McGregor, Peter [Fraser of Allander Institute, Department of Economics, University of Strathclyde, Sir William Duncan Building, 130 Rottenrow, Glasgow G4 0GE (United Kingdom); Swales, Kim [Department of Economics, University of Strathclyde, Sir William Duncan Building, 130 Rottenrow, Glasgow G4 0GE (United Kingdom)

    2011-01-15

    Standalone levelised cost assessments of electricity supply options miss an important contribution that renewable and non-fossil fuel technologies can make to the electricity portfolio: that of reducing the variability of electricity costs, and their potentially damaging impact upon economic activity. Portfolio theory applications to the electricity generation mix have shown that renewable technologies, their costs being largely uncorrelated with non-renewable technologies, can offer such benefits. We look at the existing Scottish generation mix and examine drivers of changes out to 2020. We assess recent scenarios for the Scottish generation mix in 2020 against mean-variance efficient portfolios of electricity-generating technologies. Each of the scenarios studied implies a portfolio cost of electricity that is between 22% and 38% higher than the portfolio cost of electricity in 2007. These scenarios prove to be mean-variance 'inefficient' in the sense that, for example, lower variance portfolios can be obtained without increasing portfolio costs, typically by expanding the share of renewables. As part of extensive sensitivity analysis, we find that Wave and Tidal technologies can contribute to lower risk electricity portfolios, while not increasing portfolio cost. (author)

  5. Information Acquisition and Portfolio Performance

    OpenAIRE

    Guiso, Luigi; Jappelli, Tullio

    2006-01-01

    Rational investors perceive correctly the value of financial information. Investment in information is therefore rewarded with a higher Sharpe ratio. Overconfident investors overstate the quality of their own information, and thus attain a lower Sharpe ratio. We contrast the implications of the two models using a unique survey of customers of an Italian leading bank with portfolio data and measures of financial information. We find that the portfolio Sharpe ratio is negatively associated with...

  6. Different Variants of Fundamental Portfolio

    Directory of Open Access Journals (Sweden)

    Tarczyński Waldemar

    2014-06-01

    Full Text Available The paper proposes the fundamental portfolio of securities. This portfolio is an alternative for the classic Markowitz model, which combines fundamental analysis with portfolio analysis. The method’s main idea is based on the use of the TMAI1 synthetic measure and, in limiting conditions, the use of risk and the portfolio’s rate of return in the objective function. Different variants of fundamental portfolio have been considered under an empirical study. The effectiveness of the proposed solutions has been related to the classic portfolio constructed with the help of the Markowitz model and the WIG20 market index’s rate of return. All portfolios were constructed with data on rates of return for 2005. Their effectiveness in 2006- 2013 was then evaluated. The studied period comprises the end of the bull market, the 2007-2009 crisis, the 2010 bull market and the 2011 crisis. This allows for the evaluation of the solutions’ flexibility in various extreme situations. For the construction of the fundamental portfolio’s objective function and the TMAI, the study made use of financial and economic data on selected indicators retrieved from Notoria Serwis for 2005.

  7. Development, implementation, and analysis of desktop-scale model industrial equipment and a critical thinking rubric for use in chemical engineering education

    Science.gov (United States)

    Golter, Paul B.

    In order to address some of the challenges facing engineering education, namely the demand that students be better prepared to practice professional as well as technical skills, we have developed an intervention consisting of equipment, assessments and a novel pedagogy. The equipment consists of desktop-scale replicas of common industrial equipment. These are implemented in the form of modular cartridges that can be interchanged in a base unit containing water, power and instrumentation. These Desktop Learning Modules (DLMs) are effective at providing a hands on experience in most classroom environments without requiring either water or power hook-ups. Furthermore, the DLMs respond quickly enough that multiple experiments by multiple groups can be run in a single one hour class. We refined an existing critical thinking rubric to be more specific to the realm of engineering problem solving. By altering our pedagogy to a project based environment using the critical thinking rubric as a primary grading tool, we are able to observe and measure the critical thinking skills of student groups. This rubric is corroborated with an industrial perspective and measures constructs that are important to the students' future careers.

  8. Development and Validation of a Rubric for Diagnosing Students’ Experimental Design Knowledge and Difficulties

    Science.gov (United States)

    Dasgupta, Annwesa P.; Anderson, Trevor R.

    2014-01-01

    It is essential to teach students about experimental design, as this facilitates their deeper understanding of how most biological knowledge was generated and gives them tools to perform their own investigations. Despite the importance of this area, surprisingly little is known about what students actually learn from designing biological experiments. In this paper, we describe a rubric for experimental design (RED) that can be used to measure knowledge of and diagnose difficulties with experimental design. The development and validation of the RED was informed by a literature review and empirical analysis of undergraduate biology students’ responses to three published assessments. Five areas of difficulty with experimental design were identified: the variable properties of an experimental subject; the manipulated variables; measurement of outcomes; accounting for variability; and the scope of inference appropriate for experimental findings. Our findings revealed that some difficulties, documented some 50 yr ago, still exist among our undergraduate students, while others remain poorly investigated. The RED shows great promise for diagnosing students’ experimental design knowledge in lecture settings, laboratory courses, research internships, and course-based undergraduate research experiences. It also shows potential for guiding the development and selection of assessment and instructional activities that foster experimental design. PMID:26086658

  9. Land-Use Portfolio Modeler, Version 1.0

    Science.gov (United States)

    Taketa, Richard; Hong, Makiko

    2010-01-01

    Natural hazards pose significant threats to the public safety and economic health of many communities throughout the world. Community leaders and decision-makers continually face the challenges of planning and allocating limited resources to invest in protecting their communities against catastrophic losses from natural-hazard events. Public efforts to assess community vulnerability and encourage loss-reduction measures through mitigation often focused on either aggregating site-specific estimates or adopting standards based upon broad assumptions about regional risks. The site-specific method usually provided the most accurate estimates, but was prohibitively expensive, whereas regional risk assessments were often too general to be of practical use. Policy makers lacked a systematic and quantitative method for conducting a regional-scale risk assessment of natural hazards. In response, Bernknopf and others developed the portfolio model, an intermediate-scale approach to assessing natural-hazard risks and mitigation policy alternatives. The basis for the portfolio-model approach was inspired by financial portfolio theory, which prescribes a method of optimizing return on investment while reducing risk by diversifying investments in different security types. In this context, a security type represents a unique combination of features and hazard-risk level, while financial return is defined as the reduction in losses resulting from an investment in mitigation of chosen securities. Features are selected for mitigation and are modeled like investment portfolios. Earth-science and economic data for the features are combined and processed in order to analyze each of the portfolios, which are then used to evaluate the benefits of mitigating the risk in selected locations. Ultimately, the decision maker seeks to choose a portfolio representing a mitigation policy that maximizes the expected return-on-investment, while minimizing the uncertainty associated with that return

  10. The Use of E-Portfolio in a Linear Algebra Course

    Science.gov (United States)

    Torres, Judit Taberna; García-Planas, María Isabel; Domínguez-García, Santiago

    2016-01-01

    The use of e-portfolio becomes a standard tool when it comes to learning and student's assessment. This is due to the teachers need for enhancing their students' autonomy. The use of e-portfolio helps students to focus on their own learning process. Lectures should not be limited only to classes, but must foster active learning, and in this…

  11. Parent-Child Portfolios: "Look--This Book Is All about Us!"

    Science.gov (United States)

    Appl, Dolores J.; Leavitt, Jessica E.; Ryan, Melissa A.

    2014-01-01

    A team of facilitators describe the process and content of portfolios they create for families attending weekly playgroup sessions based on the philosophy and practices of the Parents Interacting with Infants (PIWI) model. The parent-child portfolios are a form of authentic assessment and highlight children's development within the context of…

  12. Use of Modern Methods of Credit Portfolio Risk Management in Commercial Banks of Russian Federation

    Directory of Open Access Journals (Sweden)

    Dmitrii S. Melnyk

    2013-01-01

    Full Text Available The article deals with the structure and factors of credit portfolio risk, analyses existing models of portfolio risk assessment and develops recommendations on the implementation of risk management adapted methods, presents recommendations on the optimization of the approach to credit risk minimization in Russian banking system.

  13. Finding Common Ground: Identifying and Eliciting Metacognition in ePortfolios across Contexts

    Science.gov (United States)

    Bokser, Julie A.; Brown, Sarah; Chaden, Caryn; Moore, Michael; Cleary, Michelle Navarre; Reed, Susan; Seifert, Eileen; Zecker, Liliana Barro; Wozniak, Kathryn

    2016-01-01

    Research has suggested ePortfolios reveal and support students' metacognition, that is, their awareness, tracking, and evaluation of their learning over time. However, due to the wide variety of purposes and audiences for ePortfolios, it has been unclear whether there might be common criteria for identifying and assessing metacognition in…

  14. E-Portfolios Rescue Biology Students from a Poorer Final Exam Result: Promoting Student Metacognition

    Science.gov (United States)

    Haave, Neil

    2016-01-01

    E-portfolios have the potential to transform students' learning experiences. They promote reflection on the significance of what and how students have learned. Such reflective practices enhance students' ability to articulate their knowledge and skills to their peers, teachers, and future employers. In addition, e-portfolios can help assess the…

  15. Holistic and Individualistic Evaluations of Digital Visual Art Portfolios: A Mixed Methods Study

    Science.gov (United States)

    Cavill, William D., Jr.

    2017-01-01

    The high-stakes nature of portfolio evaluation makes it necessary to perform such assessments in the fairest and most equitable manner possible. Determining whether or not there is a difference between holistically and individualistically derived scores for digital visual art portfolios and how those differences can be explained was the focus of…

  16. The Challenges of Incorporating ePortfolio into an Undergraduate Nursing Programme

    Science.gov (United States)

    Haggerty, Carmel; Thompson, Trish

    2017-01-01

    Registered nurses today are required to maintain a portfolio of evidence of their competence to practice. This evidence collection commences at undergraduate level with nursing programmes requiring portfolio's as assessments, which are often submitted in hard copy. This paper describes the outcome when a small group of tutorial staff introduced…

  17. e-Portfolios Enhancing Students' Self-Directed Learning: A Systematic Review of Influencing Factors

    Science.gov (United States)

    Beckers, Jorrick; Dolmans, Diana; Van Merriënboer, Jeroen

    2016-01-01

    e-Portfolios have become increasingly popular among educators as learning tools. Some research even shows that e-portfolios can be utilised to facilitate the development of skills for self-directed learning. Such skills include self-assessment of performance, formulation of learning goals, and selection of future tasks. However, it is not yet…

  18. The development of a reflective vascular training portfolio: Using a ...

    African Journals Online (AJOL)

    ... of formative assessment to certify candidates. Case-based self-reflection in postgraduate training may be used as an additional educational tool and incorporated into the curricula vitae of trainees. We describe the method used to assess a vascular case, based on a self-reflective training method (vascular case portfolio).

  19. Potentials and Challenges of Student Progress Portfolio Innovation ...

    African Journals Online (AJOL)

    This paper aims at stimulating discussion on Students Progress Portfolio (SPP) Innovation in assessment. It analyses the potential and challenges of SPP as well as how it can be harnessed to improve assessment practices and its contribution to quality education. The paper is based on a recent qualitative research which ...

  20. Universal portfolios generated by the Bregman divergence

    Science.gov (United States)

    Tan, Choon Peng; Kuang, Kee Seng

    2017-04-01

    The Bregman divergence of two probability vectors is a stronger form of the f-divergence introduced by Csiszar. Two versions of the Bregman universal portfolio are presented by exploiting the mean-value theorem. The explicit form of the Bregman universal portfolio generated by a function of a convex polynomial is derived and studied empirically. This portfolio can be regarded as another generalized of the well-known Helmbold portfolio. By running the portfolios on selected stock-price data sets from the local stock exchange, it is shown that it is possible to increase the wealth of the investor by using the portfolios in investment.

  1. Portfolio Insurance Strategies by a Large Player

    OpenAIRE

    Kalife, Aymeric

    2004-01-01

    Market liquidity risk refers to the degree to which large size transactions can be carried out in a timely fashion with minimal impact on prices. Emphasized by the G10 report in 1993 and the BIS report in 1997, it is one factor of destabilization in the financial markets, as illustrated recently by the Asian crisis, the failure of the hedge fund LTCM during the Russian crisis. So in order to assess welfare implications of portfolio insurance strategies, it would be to estimate the dynamic hed...

  2. 77 FR 55903 - Confirmation, Portfolio Reconciliation, Portfolio Compression, and Swap Trading Relationship...

    Science.gov (United States)

    2012-09-11

    ... Vol. 77 Tuesday, No. 176 September 11, 2012 Part II Commodity Futures Trading Commission 17 CFR Part 23 Confirmation, Portfolio Reconciliation, Portfolio Compression, and Swap Trading Relationship... FUTURES TRADING COMMISSION 17 CFR Part 23 RIN 3038-AC96 Confirmation, Portfolio Reconciliation, Portfolio...

  3. Portfolio optimization with mean-variance model

    Science.gov (United States)

    Hoe, Lam Weng; Siew, Lam Weng

    2016-06-01

    Investors wish to achieve the target rate of return at the minimum level of risk in their investment. Portfolio optimization is an investment strategy that can be used to minimize the portfolio risk and can achieve the target rate of return. The mean-variance model has been proposed in portfolio optimization. The mean-variance model is an optimization model that aims to minimize the portfolio risk which is the portfolio variance. The objective of this study is to construct the optimal portfolio using the mean-variance model. The data of this study consists of weekly returns of 20 component stocks of FTSE Bursa Malaysia Kuala Lumpur Composite Index (FBMKLCI). The results of this study show that the portfolio composition of the stocks is different. Moreover, investors can get the return at minimum level of risk with the constructed optimal mean-variance portfolio.

  4. Development and validation of Dutch version of Lasater Clinical Judgment Rubric in hospital practice: An instrument design study.

    Science.gov (United States)

    Vreugdenhil, Jettie; Spek, Bea

    2018-03-01

    Clinical reasoning in patient care is a skill that cannot be observed directly. So far, no reliable, valid instrument exists for the assessment of nursing students' clinical reasoning skills in hospital practice. Lasater's clinical judgment rubric (LCJR), based on Tanner's model "Thinking like a nurse" has been tested, mainly in academic simulation settings. The aim is to develop a Dutch version of the LCJR (D-LCJR) and to test its psychometric properties when used in a hospital traineeship context. A mixed-model approach was used to develop and to validate the instrument. Ten dedicated educational units in a university hospital. A well-mixed group of 52 nursing students, nurse coaches and nurse educators. A Delphi panel developed the D-LCJR. Students' clinical reasoning skills were assessed "live" by nurse coaches, nurse educators and students who rated themselves. The psychometric properties tested during the assessment process are reliability, reproducibility, content validity and construct validity by testing two hypothesis: 1) a positive correlation between assessed and self-reported sum scores (convergent validity) and 2) a linear relation between experience and sum score (clinical validity). The obtained D-LCJR was found to be internally consistent, Cronbach's alpha 0.93. The rubric is also reproducible with intraclass correlations between 0.69 and 0.78. Experts judged it to be content valid. The two hypothesis were both tested significant, supporting evidence for construct validity. The translated and modified LCJR, is a promising tool for the evaluation of nursing students' development in clinical reasoning in hospital traineeships, by students, nurse coaches and nurse educators. More evidence on construct validity is necessary, in particular for students at the end of their hospital traineeship. Based on our research, the D-LCJR applied in hospital traineeships is a usable and reliable tool. Copyright © 2017 Elsevier Ltd. All rights reserved.

  5. Deformed exponentials and portfolio selection

    Science.gov (United States)

    Rodrigues, Ana Flávia P.; Guerreiro, Igor M.; Cavalcante, Charles Casimiro

    In this paper, we present a method for portfolio selection based on the consideration on deformed exponentials in order to generalize the methods based on the gaussianity of the returns in portfolio, such as the Markowitz model. The proposed method generalizes the idea of optimizing mean-variance and mean-divergence models and allows a more accurate behavior for situations where heavy-tails distributions are necessary to describe the returns in a given time instant, such as those observed in economic crises. Numerical results show the proposed method outperforms the Markowitz portfolio for the cumulated returns with a good convergence rate of the weights for the assets which are searched by means of a natural gradient algorithm.

  6. Sygeplejestuderendes brug af portfolio i klinisk undervisning

    DEFF Research Database (Denmark)

    Hjorth, Anne Charlotte Overgaard; Bruhn, Helle

    2014-01-01

    Brugen af portfolio var mangelfuld, men et udviklingsprojekt i samarbejde med den kommunale sygepleje motiverede både sygeplejestuderende og kliniske vejledere til at anvende læringsdelen af portfolio aktivt.......Brugen af portfolio var mangelfuld, men et udviklingsprojekt i samarbejde med den kommunale sygepleje motiverede både sygeplejestuderende og kliniske vejledere til at anvende læringsdelen af portfolio aktivt....

  7. Dynamic Portfolio Strategy Using Clustering Approach.

    Science.gov (United States)

    Ren, Fei; Lu, Ya-Nan; Li, Sai-Ping; Jiang, Xiong-Fei; Zhong, Li-Xin; Qiu, Tian

    2017-01-01

    The problem of portfolio optimization is one of the most important issues in asset management. We here propose a new dynamic portfolio strategy based on the time-varying structures of MST networks in Chinese stock markets, where the market condition is further considered when using the optimal portfolios for investment. A portfolio strategy comprises two stages: First, select the portfolios by choosing central and peripheral stocks in the selection horizon using five topological parameters, namely degree, betweenness centrality, distance on degree criterion, distance on correlation criterion and distance on distance criterion. Second, use the portfolios for investment in the investment horizon. The optimal portfolio is chosen by comparing central and peripheral portfolios under different combinations of market conditions in the selection and investment horizons. Market conditions in our paper are identified by the ratios of the number of trading days with rising index to the total number of trading days, or the sum of the amplitudes of the trading days with rising index to the sum of the amplitudes of the total trading days. We find that central portfolios outperform peripheral portfolios when the market is under a drawup condition, or when the market is stable or drawup in the selection horizon and is under a stable condition in the investment horizon. We also find that peripheral portfolios gain more than central portfolios when the market is stable in the selection horizon and is drawdown in the investment horizon. Empirical tests are carried out based on the optimal portfolio strategy. Among all possible optimal portfolio strategies based on different parameters to select portfolios and different criteria to identify market conditions, 65% of our optimal portfolio strategies outperform the random strategy for the Shanghai A-Share market while the proportion is 70% for the Shenzhen A-Share market.

  8. Dynamic Portfolio Strategy Using Clustering Approach.

    Directory of Open Access Journals (Sweden)

    Fei Ren

    Full Text Available The problem of portfolio optimization is one of the most important issues in asset management. We here propose a new dynamic portfolio strategy based on the time-varying structures of MST networks in Chinese stock markets, where the market condition is further considered when using the optimal portfolios for investment. A portfolio strategy comprises two stages: First, select the portfolios by choosing central and peripheral stocks in the selection horizon using five topological parameters, namely degree, betweenness centrality, distance on degree criterion, distance on correlation criterion and distance on distance criterion. Second, use the portfolios for investment in the investment horizon. The optimal portfolio is chosen by comparing central and peripheral portfolios under different combinations of market conditions in the selection and investment horizons. Market conditions in our paper are identified by the ratios of the number of trading days with rising index to the total number of trading days, or the sum of the amplitudes of the trading days with rising index to the sum of the amplitudes of the total trading days. We find that central portfolios outperform peripheral portfolios when the market is under a drawup condition, or when the market is stable or drawup in the selection horizon and is under a stable condition in the investment horizon. We also find that peripheral portfolios gain more than central portfolios when the market is stable in the selection horizon and is drawdown in the investment horizon. Empirical tests are carried out based on the optimal portfolio strategy. Among all possible optimal portfolio strategies based on different parameters to select portfolios and different criteria to identify market conditions, 65% of our optimal portfolio strategies outperform the random strategy for the Shanghai A-Share market while the proportion is 70% for the Shenzhen A-Share market.

  9. Application of Markowitz Portfolio Theory by Building Optimal Portfolio on the US Stock Market

    Directory of Open Access Journals (Sweden)

    Martin Širůček

    2015-01-01

    Full Text Available This paper is focused on building investment portfolios by using the Markowitz Portfolio Theory (MPT. Derivation based on the Capital Asset Pricing Model (CAPM is used to calculate the weights of individual securities in portfolios. The calculated portfolios include a portfolio copying the benchmark made using the CAPM model, portfolio with low and high beta coefficients, and a random portfolio. Only stocks were selected for the examined sample from all the asset classes. Stocks in each portfolio are put together according to predefined criteria. All stocks were selected from Dow Jones Industrial Average (DJIA index which serves as a benchmark, too. Portfolios were compared based on their risk and return profiles. The results of this work will provide general recommendations on the optimal approach to choose securities for an investor’s portfolio.

  10. Aspects of manager, portfolio allocation, and fund performance in Brazil

    Directory of Open Access Journals (Sweden)

    Cláudia Olímpia Neves Mamede Maestri

    Full Text Available ABSTRACT This paper intends to contribute to the literature on investment funds in emerging markets by looking at the performance of multimarket funds in Brazil from a manager perspective. The aim of the paper was to analyze whether some characteristics of investment fund managers, as well as their portfolio holdings, can affect fund performance. In emerging countries both portfolio asset allocation and manager characteristics can help explain differences in the fund performance, which increases the relevance of this study. Therefore, the impact of this research lies in its revealing a significant relationship between risk-adjusted return and the portion of portfolios allocated to fixed or variable income, which seems that have not been explored in the context of emerging economies yet. A total of 6,002 multimarket funds were analyzed, covering the period between September 2009 and December 2015, using panel data with robust standard errors clustered by funds. We also employed robust statistics in order to assess some potential biases due to outliers, by analyzing the breakdown point in the estimated models. It should be noted that portfolio composition (allocation of portfolios into variable income and fixed income was the most important factor in explaining a potential change in the performance of Brazilian multimarket funds. Also important were the effectiveness of the management of these funds, that is, the best risk-adjusted returns were delivered by less experienced managers, funds investing more in fixed income, managers with more funds under management, and larger funds.

  11. Portfolio Αssessment of Speaking Skills in English as a Foreign Language in Primary Education

    Directory of Open Access Journals (Sweden)

    Georgia Efthymiou

    2012-02-01

    Full Text Available This study focuses on the assessment of speaking skills with reference to young learners. This is achieved by using an alternative method of assessment, namely portfolios. The general aim is to introduce learners’ to portfolio assessment of their speaking skills and to promote further learning and autonomy making, thus, learning and assessment coexist in a non-threatening mode. Three methodological tools are used for this research; a needs analysis questionnaire addressing the pupils��� needs of the fifth grade of a Greek primary school, the European Portfolio of Languages (ELP - used in tandem with the oral portfolio Dossier - and a final evaluation questionnaire given to the pupils after the completion of the oral portfolio project. Based on the statistical analysis of pupils’ evaluation results and the teacher’s observation throughout the school year, it is evident that the oral portfolio denotes a time-consuming and laborious assessment process. Nevertheless, the pupils see it as an interesting experience and are willing to use it again in the future. In conclusion, students’ portfolios are an innovative method of assessment that can actually promote the development of speaking skills and young learners’ metacognitive strategies in the EFL classroom, and raise their interest in learning.

  12. Feature selection for portfolio optimization

    DEFF Research Database (Denmark)

    Bjerring, Thomas Trier; Ross, Omri; Weissensteiner, Alex

    2016-01-01

    Most portfolio selection rules based on the sample mean and covariance matrix perform poorly out-of-sample. Moreover, there is a growing body of evidence that such optimization rules are not able to beat simple rules of thumb, such as 1/N. Parameter uncertainty has been identified as one major....... While most of the diversification benefits are preserved, the parameter estimation problem is alleviated. We conduct out-of-sample back-tests to show that in most cases different well-established portfolio selection rules applied on the reduced asset universe are able to improve alpha relative...

  13. Managing the New Product Portfolio

    DEFF Research Database (Denmark)

    Larsson, Flemming

    2008-01-01

    Product development companies are increasingly confronted with an unforgiving global marketplace, which urges the top management to pursue every product development opportunity that appears on the road. This situation incurs an important question: Which product development opportunities should a ....... The contributions encourage an improved understanding of the portfolio management concept and support industry professionals in their efforts to compose and continuously maintain a commercially strong product development portfolio.......Product development companies are increasingly confronted with an unforgiving global marketplace, which urges the top management to pursue every product development opportunity that appears on the road. This situation incurs an important question: Which product development opportunities should...

  14. Portfolios and the market geometry

    Science.gov (United States)

    Eleutério, Samuel; Araújo, Tanya; Vilela Mendes, R.

    2014-09-01

    A geometric analysis of return time series, performed in the past, implied that most of the systematic information in the market is contained in a space of small dimension. Here we have explored subspaces of this space to find out the relative performance of portfolios formed from companies that have the largest projections in each one of the subspaces. As expected, it was found that the best performance portfolios are associated with some of the small eigenvalue subspaces and not to the dominant dimensions. This is found to occur in a systematic fashion over an extended period (1990-2008).

  15. Application of Project Portfolio Management

    Science.gov (United States)

    Pankowska, Malgorzata

    The main goal of the chapter is the presentation of the application project portfolio management approach to support development of e-Municipality and public administration information systems. The models of how people publish and utilize information on the web have been transformed continually. Instead of simply viewing on static web pages, users publish their own content through blogs and photo- and video-sharing slides. Analysed in this chapter, ICT (Information Communication Technology) projects for municipalities cover the mixture of the static web pages, e-Government information systems, and Wikis. So, for the management of the ICT projects' mixtures the portfolio project management approach is proposed.

  16. Purchasing portfolio usage and purchasing sophistication

    NARCIS (Netherlands)

    Gelderman, C.J.; Weele, van A.J.

    2005-01-01

    Purchasing portfolio models have caused considerable controversy in literature. Many advantages and disadvantages have been put forward, revealing a strong disagreement on the merits of portfolio models. This study addresses the question whether or not the use of purchasing portfolio models should

  17. Hierarchical Portfolio Management: Theory and Applications

    NARCIS (Netherlands)

    H. Ning (Haikun)

    2007-01-01

    textabstractUnder his own preference, how should an investor coordinate the asset managers such that his aggregated portfolio is optimized? The efficiency of each managed sub portfolio and the aggregation of all the sub portfolios are the 2 main underlying problems considered in this dissertation.

  18. Modern Portfolio Theory: Some Main Results

    OpenAIRE

    Müller, Heinz H.

    2017-01-01

    This article summarizes some main results in modern portfolio theory. First, the Markowitz approach is presented. Then the capital asset pricing model is derived and its empirical testability is discussed. Afterwards Neumann-Morgenstern utility theory is applied to the portfolio problem. Finally, it is shown how optimal risk allocation in an economy may lead to portfolio insurance

  19. Household portfolios and implicit risk aversion

    NARCIS (Netherlands)

    Bucciol, A.; Miniaci, R.

    2008-01-01

    We derive from a sample of US households the distribution of the risk aversion implicit in their portfolio choice. Our estimate minimizes the distance between the certainty equivalent return generated with observed portfolios and portfolios that are optimal in a mean-variance framework. Taking into

  20. Quantitative investment strategies and portfolio management

    NARCIS (Netherlands)

    Guo, J.

    2012-01-01

    This book contains three essays on alternative investments and portfolio management. Taking from a portfolio investor’s perspective, the first essay analyzes the portfolio implication of investing in hedge funds when there is a hedge fund lockup period. The second essay studies the investment

  1. The Impact of Transaction Costs on Rebalancing an Investment Portfolio in Portfolio Optimization

    OpenAIRE

    B. Marasović; S. Pivac; S. V. Vukasović

    2015-01-01

    Constructing a portfolio of investments is one of the most significant financial decisions facing individuals and institutions. In accordance with the modern portfolio theory maximization of return at minimal risk should be the investment goal of any successful investor. In addition, the costs incurred when setting up a new portfolio or rebalancing an existing portfolio must be included in any realistic analysis. In this paper rebalancing an investment portfolio in the pr...

  2. Delegated Portfolio Management and Optimal Allocation of Portfolio Managers

    DEFF Research Database (Denmark)

    Christensen, Michael; Vangsgaard Christensen, Michael; Gamskjaer, Ken

    2015-01-01

    In this article, we investigate whether the application of the mean-variance framework on portfolio manager allocation offers any out-of-sample benefits compared to a naïve strategy of equal weighting. Based on an exclusive data-set of high-net-worth (HNW) investors, we utilize a wide variety of ...

  3. Electronic portfolios in nursing education: a review of the literature.

    Science.gov (United States)

    Green, Janet; Wyllie, Aileen; Jackson, Debra

    2014-01-01

    As health professionals, nurses are responsible for staying abreast of current professional knowledge and managing their own career, professional growth and development, and ideally, practices to support these activities should start during their student years. Interest in electronic or eportfolios is gathering momentum as educationalists explore their potential as a strategy for fostering lifelong learning and enhancing on-going personal and professional development. In this paper, we present an overview of e-portfolios and their application to nurse education, highlighting potential benefits and considerations of useage. We argue that the e-portfolio can represent an authentic means of assessing cognitive, reflective and affective skills. Furthermore, the e-portfolio provides a means through which nurses can record and provide evidence of skills, achievements, experience, professional development and on-going learning, not only for themselves, but for the information and scrutiny of registration boards, employers, managers and peers. Crown Copyright © 2013. Published by Elsevier Ltd. All rights reserved.

  4. Competency-Based Evaluation in Higher Education--Design and Use of Competence Rubrics by University Educators

    Science.gov (United States)

    Velasco-Martínez, Leticia-Concepción; Tójar-Hurtado, Juan-Carlos

    2018-01-01

    Competency-based learning requires making changes in the higher education model in response to current socio-educational demands. Rubrics are an innovative educational tool for competence evaluation, for both students and educators. Ever since arriving at the university systems, the application of rubrics in evaluation programs has grown…

  5. How adult students in Information Studies use a scoring rubric for the development of their information literacy skills

    NARCIS (Netherlands)

    A.A.J. (Jos) van Helvoort

    2012-01-01

    The purpose of this article is to expand on a previous study on the development of a scoring rubric for information literacy1. The present paper examines how students at the Department of Information Services and Information Management, The Hague University, use the scoring rubric for their school

  6. Simulation and rubrics: technology and grading student performance in nurse anesthesia education.

    Science.gov (United States)

    Overstreet, Maria; McCarver, Lewis; Shields, John; Patterson, Jordan

    2015-06-01

    The use of simulation technology has introduced a challenge for simulation nurse educators: evaluation of student performance. The subjectivity of student performance evaluation has been in need of improvement. It is imperative to provide clear and consistent information to the learner of expectations for their performance. Educators use objectives to define for the learner what the primary focus will be in the learning activities. Creation of rubrics to replace checklists to evaluate learner performance is a team task. Improved rubrics assist instructors in providing valuable, immediate, and postactivity feedback and consistency among instructors, and improved inter-rater reliability. Copyright © 2015 Elsevier Inc. All rights reserved.

  7. Using Electronic Student Portfolios in Management Education: A Stakeholder Perspective.

    Science.gov (United States)

    Chappell, David S.; Schermerhorn, John R., Jr.

    1999-01-01

    A business school is using electronic student portfolios as an academic assessment and career development tool. They are also used for internship and job placements. It is recommended that they be mandatory, even for students with weaker computer skills, and they should have defined deadlines and feedback mechanisms. (SK)

  8. Performance of the reverse Helmbold universal portfolio

    Science.gov (United States)

    Tan, Choon Peng; Kuang, Kee Seng; Lee, Yap Jia

    2017-04-01

    The universal portfolio is an important investment strategy in a stock market where no stochastic model is assumed for the stock prices. The zero-gradient set of the objective function estimating the next-day portfolio which contains the reverse Kullback-Leibler order-alpha divergence is considered. From the zero-gradient set, the explicit, reverse Helmbold universal portfolio is obtained. The performance of the explicit, reverse Helmbold universal portfolio is studied by running them on some stock-price data sets from the local stock exchange. It is possible to increase the wealth of the investor by using these portfolios in investment.

  9. Portfolios: A Vehicle for Inquiry.

    Science.gov (United States)

    McMackin, Mary C.

    By blending elements of inquiry with the components of portfolios, learning and thinking in teacher preparation courses can be extended and possible tensions between "covering content" and allowing "open-ended investigation" can be mitigated. Over the years, the author mused about how she might nudge graduate students in her…

  10. Dynamic Portfolio Choice with Frictions

    DEFF Research Database (Denmark)

    Garleanu, Nicolae; Heje Pedersen, Lasse

    2016-01-01

    We show how portfolio choice can be modeled in continuous time with transitory and persistent transaction costs, multiple assets, multiple signals predicting returns, and general signal dynamics. The objective function is derived from the limit of discrete-time models with endogenous transaction...

  11. Teaching Sociology through Student Portfolios

    Science.gov (United States)

    Trepagnier, Barbara

    2004-01-01

    After several years of teaching Sociological Thought--an upper division course that focuses on classical, modern, and contemporary sociological theories--the author came across the idea of student portfolios. As a consequence, the course has undergone far-reaching changes. The content remains relatively intact; however, today the theory course…

  12. Adaptation portfolios in water management

    NARCIS (Netherlands)

    Aerts, J.C.J.H.; Botzen, W.J.W.; Werners, S.

    2015-01-01

    This study explores how Modern Portfolio Theory (MPT) can guide investment decisions in integrated water resources management (IWRM) and climate change adaptation under uncertainty. The objectives of the paper are to: (i) explain the concept of diversification to reduce risk, as formulated in MPT;

  13. Robust Portfolio Optimization Using Pseudodistances

    Science.gov (United States)

    2015-01-01

    The presence of outliers in financial asset returns is a frequently occurring phenomenon which may lead to unreliable mean-variance optimized portfolios. This fact is due to the unbounded influence that outliers can have on the mean returns and covariance estimators that are inputs in the optimization procedure. In this paper we present robust estimators of mean and covariance matrix obtained by minimizing an empirical version of a pseudodistance between the assumed model and the true model underlying the data. We prove and discuss theoretical properties of these estimators, such as affine equivariance, B-robustness, asymptotic normality and asymptotic relative efficiency. These estimators can be easily used in place of the classical estimators, thereby providing robust optimized portfolios. A Monte Carlo simulation study and applications to real data show the advantages of the proposed approach. We study both in-sample and out-of-sample performance of the proposed robust portfolios comparing them with some other portfolios known in literature. PMID:26468948

  14. Portfolio selection with heavy tails

    NARCIS (Netherlands)

    Hyung, N.; Vries, de C.G.

    2007-01-01

    Consider the portfolio problem of choosing the mix between stocks and bonds under a downside risk constraint. Typically stock returns exhibit fatter tails than bonds corresponding to their greater downside risk. Downside risk criteria like the safety first criterion therefore often select corner

  15. Portfolio Selection with Heavy Tails

    NARCIS (Netherlands)

    N. Hyung (Namwon); C.G. de Vries (Casper)

    2004-01-01

    textabstractConsider the portfolio problem of choosing the mix between stocks and bonds under a downside risk constraint. Typically stock returns exhibit fatter tails than bonds corresponding to their greater downside risk. Downside risk criteria like the safety first criterion therefore of ten

  16. Does health affect portfolio choice?

    Science.gov (United States)

    Love, David A; Smith, Paul A

    2010-12-01

    A number of recent studies find that poor health is empirically associated with a safer portfolio allocation. It is difficult to say, however, whether this relationship is truly causal. Both health status and portfolio choice are influenced by unobserved characteristics such as risk attitudes, impatience, information, and motivation, and these unobserved factors, if not adequately controlled for, can induce significant bias in the estimates of asset demand equations. Using the 1992-2006 waves of the Health and Retirement Study, we investigate how much of the connection between health and portfolio choice is causal and how much is due to the effects of unobserved heterogeneity. Accounting for unobserved heterogeneity with fixed effects and correlated random effects models, we find that health does not appear to significantly affect portfolio choice among single households. For married households, we find a small effect (about 2-3 percentage points) from being in the lowest of five self-reported health categories. Copyright © 2009 John Wiley & Sons, Ltd.

  17. Supply contract and portfolio insurance

    Science.gov (United States)

    Runsheng Yin; Bob Izlar

    2001-01-01

    The long-term growth of institutional timberland investments depends on the ability of timberland investment management organizations (TIMO) to deal effectively with securitization, leveraging, arbitraging, supply contracting, portfolio insurance, tax efficiency enhancement, and other issues. Financial engineering holds great promise for many of these issues. This...

  18. Turnover activity in wealth portfolios

    NARCIS (Netherlands)

    Castaldi, C.; Milakovic, M.

    2007-01-01

    We examine several subsets of the wealthiest individuals in the US and the UK that are compiled by Forbes Magazine and the Sunday Times. Since these are named subsets, we can calculate the returns to wealth portfolios, and calibrate a statistical equilibrium model of wealth distribution that

  19. Turnover activity in wealth portfolios

    NARCIS (Netherlands)

    Castaldi, Carolina; Milakovic, Mishael

    We examine several subsets of the wealthiest individuals in the US and the UK that are compiled by Forbes Magazine and the Sunday Times. Since these are named subsets, we can calculate the returns to wealth portfolios, and calibrate a statistical equilibrium model of wealth distribution that

  20. HEURISTIC APPROACHES FOR PORTFOLIO OPTIMIZATION

    OpenAIRE

    Manfred Gilli, Evis Kellezi

    2000-01-01

    The paper first compares the use of optimization heuristics to the classical optimization techniques for the selection of optimal portfolios. Second, the heuristic approach is applied to problems other than those in the standard mean-variance framework where the classical optimization fails.

  1. Optimal Portfolio Choice with Annuitization

    NARCIS (Netherlands)

    Koijen, R.S.J.; Nijman, T.E.; Werker, B.J.M.

    2006-01-01

    We study the optimal consumption and portfolio choice problem over an individual's life-cycle taking into account annuity risk at retirement. Optimally, the investor allocates wealth at retirement to nominal, inflation-linked, and variable annuities and conditions this choice on the state of the

  2. Household Portfolios in the Netherlands

    NARCIS (Netherlands)

    Alessie, R.J.M.; Hochgürtel, S.; van Soest, A.H.O.

    2000-01-01

    We describe and analyse the portfolio structure of Dutch households using micro panel data from the CentER Savings Survey, 1993-1998.The data allows for a distinction between many types of assets.Moreover, we have information on mortgage debt, consumer debt, etc.We analyse the composition of

  3. Managing a "N" Securities Portfolio

    Directory of Open Access Journals (Sweden)

    Costică Vlad

    2016-01-01

    For the application that will be described below, namely the management of a portfolio of eightsecurity bonds, a financial analyst should carry more than 10^15 computing operations. Thedemonstration focuses on the analysis of results and on summarizing the concepts used.

  4. Discrepancies in assessing undergraduates’ pragmatics learning

    Directory of Open Access Journals (Sweden)

    Oscar Ndayizeye

    2017-12-01

    Full Text Available The purpose of this research was to reveal the level of implementation of authentic assessment in the pragmatics course at the English Education Department of a university. Discrepancy Evaluation Model (DEM was used. The instruments were questionnaire, documentation, and observation. The result of the research shows that respectively, the effectiveness of definition, installation, process, and production stages in logits are -0.06, -0.14, 0.45, and 0.02 on its aspect of the assessment methods’ effectiveness in uncovering students’ ability. Such values indicate that the level of implementation fell respectively into ‘very high’,’high’, ‘low’, and ‘very low’ categories.  The students’ success rate is in ‘very high’ category with the average score of 3.22. However, the overall implementation of the authentic assessment fell into a ‘low’ category with the average score of 0.06. Discrepancies leading to such a low implementation are the unavailability of the assessment scheme, that of scoring rubric, minimal (only 54.54% diversification of assessment methods, infrequency of the lecturer’s feedback on the students’ academic achievement, and the non-use of portfolio assessment.

  5. Development and Validation of a Rubric for Diagnosing Students' Experimental Design Knowledge and Difficulties.

    Science.gov (United States)

    Dasgupta, Annwesa P; Anderson, Trevor R; Pelaez, Nancy

    2014-01-01

    It is essential to teach students about experimental design, as this facilitates their deeper understanding of how most biological knowledge was generated and gives them tools to perform their own investigations. Despite the importance of this area, surprisingly little is known about what students actually learn from designing biological experiments. In this paper, we describe a rubric for experimental design (RED) that can be used to measure knowledge of and diagnose difficulties with experimental design. The development and validation of the RED was informed by a literature review and empirical analysis of undergraduate biology students' responses to three published assessments. Five areas of difficulty with experimental design were identified: the variable properties of an experimental subject; the manipulated variables; measurement of outcomes; accounting for variability; and the scope of inference appropriate for experimental findings. Our findings revealed that some difficulties, documented some 50 yr ago, still exist among our undergraduate students, while others remain poorly investigated. The RED shows great promise for diagnosing students' experimental design knowledge in lecture settings, laboratory courses, research internships, and course-based undergraduate research experiences. It also shows potential for guiding the development and selection of assessment and instructional activities that foster experimental design. © 2014 A. P. Dasgupta et al. CBE—Life Sciences Education © 2014 The American Society for Cell Biology. This article is distributed by The American Society for Cell Biology under license from the author(s). It is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

  6. Outcomes-Based Authentic Learning, Portfolio Assessment, and a Systems Approach to ‘Complex Problem-Solving’: Related Pillars for Enhancing the Innovative Role of PBL in Future Higher Education

    Directory of Open Access Journals (Sweden)

    Cameron Richards

    2015-06-01

    Full Text Available The challenge of better reconciling individual and collective aspects of innovative problem-solving can be productively addressed to enhance the role of PBL as a key focus of the creative process in future higher education. This should involve ‘active learning’ approaches supported by related processes of teaching, assessment and curriculum. As Biggs & Tan (2011 have suggested, an integrated or systemic approach is needed for the most effective practice of outcomes-based education also especially relevant for addressing relatively simple as well as more complex problems. Such a model will be discussed in relation to the practical example of a Masters subject conceived with interdisciplinary implications, applications, and transferability: ‘sustainable policy studies in science, technology and innovation’. Different modes of PBL might be encouraged in terms of the authentic kinds of ‘complex problem-solving’ issues and challenges which increasingly confront an interdependent and changing world. PBL can be further optimized when projects or cases also involve contexts and examples of research and inquiry. However, perhaps the most crucial pillar is a model of portfolio assessment for linking and encouraging as well as distinguishing individual contributions to collaborative projects and activities.

  7. What Is the Relationship Between a Preclerkship Portfolio Review and Later Performance in Clerkships?

    Science.gov (United States)

    O'Brien, Celia Laird; Thomas, John X; Green, Marianne M

    2018-01-01

    Medical educators struggle to find effective ways to assess essential competencies such as communication, professionalism, and teamwork. Portfolio-based assessment provides one method of addressing this problem by allowing faculty reviewers to judge performance, as based on a longitudinal record of student behavior. At the Feinberg School of Medicine, the portfolio system measures behavioral competence using multiple assessments collected over time. This study examines whether a preclerkship portfolio review is a valid method of identifying problematic student behavior affecting later performance in clerkships. The authors divided students into two groups based on a summative preclerkship portfolio review in 2014: students who had concerning behavior in one or more competencies and students progressing satisfactorily. They compared how students in these groups later performed on two clerkship outcomes as of October 2015: final grades in required clerkships, and performance on a clerkship clinical composite score. They used Mann-Whitney tests and multiple linear regression to examine the relationship between portfolio review results and clerkship outcomes. They used USMLE Step 1 to control for knowledge acquisition. Students with concerning behavior preclerkship received significantly lower clerkship grades than students progressing satisfactorily (P = .002). They also scored significantly lower on the clinical composite score (P analysis indicated concerning behavior was associated with lower clinical composite scores, even after controlling for knowledge acquisition. The results show a preclerkship portfolio review can identify behaviors that impact clerkship performance. A comprehensive portfolio system is a valid way to measure behavioral competencies.

  8. USMA Study of the Residential Communities Initiative (RCI) Portfolio and Asset Management (PAM)

    National Research Council Canada - National Science Library

    Powell, Robert; Parnell, Gregory; Driscoll, Patrick J; Boylan, Gregory; Evans, Daniel; Underwood, Thaddeus; Moten, Margaret

    2006-01-01

    ...) Portfolio and Asset Management (PAM) program and provide an independent assessment of the adequacy of the Army's RCI PAM program in achieving its intended objectives across all domains and all phases of the program...

  9. Development and Application of a Rubric for Evaluating Students' Performance on Newton's Laws of Motion

    Science.gov (United States)

    Kocakulah, Mustafa Sabri

    2010-01-01

    This study aims to develop and apply a rubric to evaluate the solutions of pre-service primary science teachers to questions about Newton's Laws of Motion. Two groups were taught the topic using the same teaching methods and administered four questions before and after teaching. Furthermore, 76 students in the experiment group were instructed…

  10. Measuring Course Competencies in a School of Business: The Use of Standardized Curriculum and Rubrics

    Science.gov (United States)

    Gibson, Jane Whitney

    2011-01-01

    This paper examines the growing emphasis on measurement of course competencies by individual college students through two course examples, an undergraduate course in managing change and conflict and a graduate course in human resource management. The author explains how standardized curriculum and assignment rubrics are being used to measure…

  11. Examining Design and Inter-Rater Reliability of a Rubric Measuring Research Quality across Multiple Disciplines

    Directory of Open Access Journals (Sweden)

    Marilee J. Bresciani

    2009-05-01

    Full Text Available The paper presents a rubric to help evaluate the quality of research projects. The rubric was applied in a competition across a variety of disciplines during a two-day research symposium at one institution in the southwest region of the United States of America. It was collaboratively designed by a faculty committee at the institution and was administered to 204 undergraduate, master, and doctoral oral presentations by approximately 167 different evaluators. No training or norming of the rubric was given to 147 of the evaluators prior to the competition. The findings of the inter-rater reliability analysis reveal substantial agreement among the judges, which contradicts literature describing the fact that formal norming must occur prior to seeing substantial levels of inter-rater reliability. By presenting the rubric along with the methodology used in its design and evaluation, it is hoped that others will find this to be a useful tool for evaluating documents and for teaching research methods.

  12. Portfolio Analysis of Renewable Energy Opportunities: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Richards, Allison; Deprizio, Jodi; Anderson, Kate; DiOrio, Nick; Elgqvist, Emma; Simpkins, Travis

    2016-11-01

    Time Warner Cable (TWC), now Charter Communications (CC), partnered with the National Renewable Energy Laboratory (NREL) to assess the technical and economic potential for solar photovoltaic (PV), wind, and ground-source heat-pump systems at 696 TWC facilities. NREL identified 306 sites where adding a renewable energy system would provide cost savings over the project life-cycle. In general, the top sites have some combination of high electricity rates ($0.16-$0.29/kWh), significant state incentives, and favorable net-metering policies. If all projects were implemented via third-party power purchase agreements, TWC/CC would save $37 million over 25 years and meet 10.5% of their energy consumption with renewable energy. This paper describes the portfolio screening methodology used to identify and prioritize renewable energy opportunities across the TWC sites, as well as a summary of the potential cost savings that may be realized by implementing these projects. This may provide a template for other companies interested in identifying and prioritizing renewable energy opportunities across a large number of geographically dispersed sites. Following this initial portfolio analysis, NREL will be conducting in-depth analysis of project development opportunities at ten sites and evaluating off-grid solutions that may enable carbon emission reduction and grid independence at select facilities.

  13. Automatic Trading Agent. RMT Based Portfolio Theory and Portfolio Selection

    Science.gov (United States)

    Snarska, M.; Krzych, J.

    2006-11-01

    Portfolio theory is a very powerful tool in the modern investment theory. It is helpful in estimating risk of an investor's portfolio, arosen from lack of information, uncertainty and incomplete knowledge of reality, which forbids a perfect prediction of future price changes. Despite of many advantages this tool is not known and not widely used among investors on Warsaw Stock Exchange. The main reason for abandoning this method is a high level of complexity and immense calculations. The aim of this paper is to introduce an automatic decision-making system, which allows a single investor to use complex methods of Modern Portfolio Theory (MPT). The key tool in MPT is an analysis of an empirical covariance matrix. This matrix, obtained from historical data, biased by such a high amount of statistical uncertainty, that it can be seen as random. By bringing into practice the ideas of Random Matrix Theory (RMT), the noise is removed or significantly reduced, so the future risk and return are better estimated and controlled. These concepts are applied to the Warsaw Stock Exchange Simulator {http://gra.onet.pl}. The result of the simulation is 18% level of gains in comparison with respective 10% loss of the Warsaw Stock Exchange main index WIG.

  14. Teaching empirical finance courses: A project on portfolio management

    Directory of Open Access Journals (Sweden)

    Bruce Morley

    2016-12-01

    Full Text Available The aim of this article was to assess the use of a group-based project for an empirical finance type of course. It examines the outline of the project, the methodology the students are encouraged to follow and how the course is assessed. This approach enables the students to apply many of the techniques learnt on this course and other courses such as econometrics, to determine an optimal portfolio of assets given their view on the risks in the economy. The emphasis is on risk management through portfolio diversification and the use of a simple hedge strategy. The overall aim was to introduce the students to the basics of portfolio management, as many work in this industry for their industrial placements and when they graduate. The main contribution to the literature is through the analysis of an empirically based portfolio management project. The feedback from the students suggests they felt that they had learnt useful concepts and information, in an enjoyable exercise.

  15. Portfolio optimization in electricity markets

    International Nuclear Information System (INIS)

    Liu, Min; Wu, Felix F.

    2007-01-01

    In a competitive electricity market, Generation companies (Gencos) face price risk and delivery risk that affect their profitability. Risk management is an important and essential part in the Genco's decision making. In this paper, risk management through diversification is considered. The problem of energy allocation between spot markets and bilateral contracts is formulated as a general portfolio optimization problem with a risk-free asset and n risky assets. Historical data of the PJM electricity market are used to demonstrate the approach. (author)

  16. Large deviations and portfolio optimization

    Science.gov (United States)

    Sornette, Didier

    Risk control and optimal diversification constitute a major focus in the finance and insurance industries as well as, more or less consciously, in our everyday life. We present a discussion of the characterization of risks and of the optimization of portfolios that starts from a simple illustrative model and ends by a general functional integral formulation. A major item is that risk, usually thought of as one-dimensional in the conventional mean-variance approach, has to be addressed by the full distribution of losses. Furthermore, the time-horizon of the investment is shown to play a major role. We show the importance of accounting for large fluctuations and use the theory of Cramér for large deviations in this context. We first treat a simple model with a single risky asset that exemplifies the distinction between the average return and the typical return and the role of large deviations in multiplicative processes, and the different optimal strategies for the investors depending on their size. We then analyze the case of assets whose price variations are distributed according to exponential laws, a situation that is found to describe daily price variations reasonably well. Several portfolio optimization strategies are presented that aim at controlling large risks. We end by extending the standard mean-variance portfolio optimization theory, first within the quasi-Gaussian approximation and then using a general formulation for non-Gaussian correlated assets in terms of the formalism of functional integrals developed in the field theory of critical phenomena.

  17. Making sense with ePortfolios

    DEFF Research Database (Denmark)

    Poulsen, Bo Klindt; Dimsits, Miriam

    2017-01-01

    of the statements from the students concerning their understanding of ePortfolio processes are fundamentally questions of how to make sense of the ePortfolio tool, both in their professional and personal lives. This calls for a didactical stance with the teachers who use ePortfolios, based on empowerment through......This article discusses the question of making sense out of working with ePortfolio in adult education. The article presents the results of a small-scale survey among adults in continuing education who have worked with ePortfolio as the central didactic principle. It is argued that many...... meaning-making, in order for ePortfolios to make sense. It is suggested that two relevant didactic perspectives for making sense of the world can be found in theories of biographicity and metaphor work. Moreover, a strong didactic stance that supports sense-making must be based on a strong teacher role...

  18. Post-modern portfolio theory supports diversification in an investment portfolio to measure investment's performance

    OpenAIRE

    Rasiah, Devinaga

    2012-01-01

    This study looks at the Post-Modern Portfolio Theory that maintains greater diversification in an investment portfolio by using the alpha and the beta coefficient to measure investment performance. Post-Modern Portfolio Theory appreciates that investment risk should be tied to each investor's goals and the outcome of this goal did not symbolize economic of the financial risk. Post-Modern Portfolio Theory's downside measure generated a noticeable distinction between downside and upside volatil...

  19. Portfolios with nonlinear constraints and spin glasses

    Science.gov (United States)

    Gábor, Adrienn; Kondor, I.

    1999-12-01

    In a recent paper Galluccio, Bouchaud and Potters demonstrated that a certain portfolio problem with a nonlinear constraint maps exactly onto finding the ground states of a long-range spin glass, with the concomitant nonuniqueness and instability of the optimal portfolios. Here we put forward geometric arguments that lead to qualitatively similar conclusions, without recourse to the methods of spin glass theory, and give two more examples of portfolio problems with convex nonlinear constraints.

  20. Correlation risk and optimal portfolio choice

    OpenAIRE

    Buraschi, Andrea; Porchia, Paolo; Trojani, Fabio

    2010-01-01

    We develop a new framework for multivariate intertemporal portfolio choice that allows us to derive optimal portfolio implications for economies in which the degree of correlation across industries, countries, or asset classes is stochastic. Optimal portfolios include distinct hedging components against both stochastic volatility and correlation risk. We find that the hedging demand is typically larger than in univariate models, and it includes an economically significant covariance hedging...

  1. A portfolio risk analysis on electricity supply planning

    International Nuclear Information System (INIS)

    Huang, Y.-H.; Wu, J.-H.

    2008-01-01

    Conventional electricity planning selects from a range of alternative technologies based on the least-cost method without assessing cost-related risks. The current approach to determining energy generation portfolios creates a preference for fossil fuel. Consequently, this preference results in increased exposure to recent fluctuations in fossil fuel prices, particularly for countries heavily depend on imported energy. This paper applies portfolio theory in conventional electricity planning with Taiwan as a case study. The model objective is to minimize the 'risk-weighted present value of total generation cost'. Both the present value of generating cost and risk (variance of the generating cost) are considered. Risk of generating cost is introduced for volatile fuel prices and uncertainty of technological change and capital cost reduction. The impact of risk levels on the portfolio of power generation technologies is also examined to provide some valuable policy suggestions. Study results indicate that replacing fossil fuel with renewable energy helps reduce generating cost risk. However, due to limited renewable development potential in Taiwan, there is an upper bound of 15% on the maximum share of renewable energy in the generating portfolio. In the meantime, reevaluating the current nuclear energy policy for reduced exposure to fossil fuel price fluctuations is worthwhile

  2. Large and small baseload power plants: Drivers to define the optimal portfolios

    International Nuclear Information System (INIS)

    Locatelli, Giorgio; Mancini, Mauro

    2011-01-01

    Despite the growing interest in Small Medium sized Power Plants (SMPP) international literature provides only studies related to portfolios of large plants in infinite markets/grids with no particular attention given to base load SMPP. This paper aims to fill this gap, investigating the attractiveness of SMPP portfolios respect to large power plant portfolios. The analysis includes nuclear, coal and combined cycle gas turbines (CCGT) of different plant sizes. The Mean Variance Portfolio theory (MVP) is used to define the best portfolio according to Internal Rate of Return (IRR) and Levelised Unit Electricity Cost (LUEC) considering the life cycle costs of each power plant, Carbon Tax, Electricity Price and grid dimension. The results show how large plants are the best option for large grids, while SMPP are as competitive as large plants in small grids. In fact, in order to achieve the highest profitability with the lowest risk it is necessary to build several types of different plants and, in case of small grids, this is possible only with SMPP. A further result is the application of the framework to European OECD countries and the United States assessing their portfolios. - Highlights: ► The literature about power plant portfolios does not consider small grids and IRR. ► We evaluated Base load portfolios respect to IRR and LUEC. ► We assessed the influence of grid and plant size, CO 2 cost and Electricity Price. ► Large plants are optimal for large markets even if small plants have similar IRR. ► Small plants are suitable to diversify portfolios in small grids reducing the risk.

  3. Mean-Reverting Portfolio With Budget Constraint

    Science.gov (United States)

    Zhao, Ziping; Palomar, Daniel P.

    2018-05-01

    This paper considers the mean-reverting portfolio design problem arising from statistical arbitrage in the financial markets. We first propose a general problem formulation aimed at finding a portfolio of underlying component assets by optimizing a mean-reversion criterion characterizing the mean-reversion strength, taking into consideration the variance of the portfolio and an investment budget constraint. Then several specific problems are considered based on the general formulation, and efficient algorithms are proposed. Numerical results on both synthetic and market data show that our proposed mean-reverting portfolio design methods can generate consistent profits and outperform the traditional design methods and the benchmark methods in the literature.

  4. Parametric Portfolio Policies with Common Volatility Dynamics

    DEFF Research Database (Denmark)

    Ergemen, Yunus Emre; Taamouti, Abderrahim

    A parametric portfolio policy function is considered that incorporates common stock volatility dynamics to optimally determine portfolio weights. Reducing dimension of the traditional portfolio selection problem significantly, only a number of policy parameters corresponding to first- and second......-order characteristics are estimated based on a standard method-of-moments technique. The method, allowing for the calculation of portfolio weight and return statistics, is illustrated with an empirical application to 30 U.S. industries to study the economic activity before and after the recent financial crisis....

  5. Low volatility sector-based portfolios: a South African case

    African Journals Online (AJOL)

    Black pointed out that when investors are restricted from using leverage or bor- ..... takes into account the correlation between the sectors in a portfolio. ..... 3The information ratio of a portfolio is the active premium (portfolio annualised return ...

  6. Portfolio Diversification with Commodity Futures: Properties of Levered Futures

    NARCIS (Netherlands)

    Woodard, J.D.; Egelkraut, T.M.; Garcia, P.; Pennings, J.M.E.

    2005-01-01

    Portfolio Diversification with Commodity Futures: Properties of Levered Futures This study extends previous work on the impact of commodity futures on portfolio performance by explicitly incorporating levered futures into the portfolio optimization problem. Using data on nine individual commodity

  7. From aggregation to interpretation: how assessors judge complex data in a competency-based portfolio.

    Science.gov (United States)

    Oudkerk Pool, Andrea; Govaerts, Marjan J B; Jaarsma, Debbie A D C; Driessen, Erik W

    2018-05-01

    While portfolios are increasingly used to assess competence, the validity of such portfolio-based assessments has hitherto remained unconfirmed. The purpose of the present research is therefore to further our understanding of how assessors form judgments when interpreting the complex data included in a competency-based portfolio. Eighteen assessors appraised one of three competency-based mock portfolios while thinking aloud, before taking part in semi-structured interviews. A thematic analysis of the think-aloud protocols and interviews revealed that assessors reached judgments through a 3-phase cyclical cognitive process of acquiring, organizing, and integrating evidence. Upon conclusion of the first cycle, assessors reviewed the remaining portfolio evidence to look for confirming or disconfirming evidence. Assessors were inclined to stick to their initial judgments even when confronted with seemingly disconfirming evidence. Although assessors reached similar final (pass-fail) judgments of students' professional competence, they differed in their information-processing approaches and the reasoning behind their judgments. Differences sprung from assessors' divergent assessment beliefs, performance theories, and inferences about the student. Assessment beliefs refer to assessors' opinions about what kind of evidence gives the most valuable and trustworthy information about the student's competence, whereas assessors' performance theories concern their conceptualizations of what constitutes professional competence and competent performance. Even when using the same pieces of information, assessors furthermore differed with respect to inferences about the student as a person as well as a (future) professional. Our findings support the notion that assessors' reasoning in judgment and decision-making varies and is guided by their mental models of performance assessment, potentially impacting feedback and the credibility of decisions. Our findings also lend further

  8. Characteristics of Omega-Optimized Portfolios at Different Levels of Threshold Returns

    Directory of Open Access Journals (Sweden)

    Renaldas Vilkancas

    2014-12-01

    Full Text Available There is little literature considering effects that the loss-gain threshold used for dividing good and bad outcomes by all downside (upside risk measures has on portfolio optimization and performance. The purpose of this study is to assess the performance of portfolios optimized with respect to the Omega function developed by Keating and Shadwick at different levels of the threshold returns. The most common choices of the threshold values used in various Omega studies cover the risk-free rate and the average market return or simply a zero return, even though the inventors of this measure for risk warn that “using the values of the Omega function at particular points can be critically misleading” and that “only the entire Omega function contains information on distribution”. The obtained results demonstrate the importance of the selected values of the threshold return on portfolio performance – higher levels of the threshold lead to an increase in portfolio returns, albeit at the expense of a higher risk. In fact, within a certain threshold interval, Omega-optimized portfolios achieved the highest net return, compared with all other strategies for portfolio optimization using three different test datasets. However, beyond a certain limit, high threshold values will actually start hurting portfolio performance while meta-heuristic optimizers typically are able to produce a solution at any level of the threshold, and the obtained results would most likely be financially meaningless.

  9. Use of crops and livestock futures contracts in portfolios: an analysis of feasibility

    Directory of Open Access Journals (Sweden)

    Mattos Fabio L.

    2003-01-01

    Full Text Available According to Portfolio Theory, by combining assets that show a correlation inferior to one (1 among their individual returns, it becomes possible to create portfolios that reduce risk without damaging expected return. Crop and livestock futures contracts and company stocks show such a characteristic, which signals potential benefits when forming portfolios combining these two types of assets. This investment strategy is not often utilized in Brazil. The purpose of our research was to assess whether such an asset combination is actually advantageous to those creating investment portfolios in the Brazilian market. Our evaluation used instruments of analysis developed by Markowitz in Portfolio Theory and data about the return from crop and livestock futures contracts and stocks. The data was gathered from the Brazilian Futures and Commodities Exchange (BM&F and Brazil?s National Association of Open Market Institutions (ANDIMA between July 1994 and December 1998. The results of this work showed that the combination of these two types of assets in investment portfolios can be an interesting portfolio management alternative.

  10. Portfolio risk-return analysis: The case of the automotive industry in the Czech Republic

    Directory of Open Access Journals (Sweden)

    Florin Aliu

    2017-12-01

    Full Text Available Risk has always been the concern of managers and shareholders as a part of decision-making processes. Managers tend to control unsystematic risk mostly while trying to minimize the exposure to systematic (market risk. The paper aims to assess the risk level and risk-return tradeoffs for the companies operating in Czech automotive industry. A diversification formula and calculation of returns using return-on-equity were employed on the yearly basis from 2005 till 2014. The returns and risk calculations were conducted on the portfolio of auto manufacturers, followed by the portfolio of auto suppliers, while the third one was performed for suppliers and manufacturers taken together. The results of the study show that the average correlation coefficient tends to decrease when we move from manufacturers to suppliers, while increasing when we join manufacturers and suppliers in one portfolio. The highest diversification benefit has been reached in the portfolio of auto suppliers. The highest risk is manifested for the portfolio of manufacturers, while the lowest – in the portfolio of auto suppliers. Risk level declined when we joined manufacturers and suppliers in comparison with risk of manufacturers alone. However, the lowest risk and the highest risk-return tradeoff were achieved in the portfolio of suppliers.

  11. Macro-Financial Linkages in Egypt; A Panel Analysis of Economic Shocks and Loan Portfolio Quality

    OpenAIRE

    Inessa Love; Rima Turk-Ariss

    2013-01-01

    This paper investigates macro-financial linkages in Egypt using two complementary methods, assessing the interaction between different macroeconomic aggregates and loan portfolio quality in a multivariate framework as well as through a panel vector autoregressive method that controls for bank-level characteristics. Using a panel of banks over 1993-2010, the authors find that a positive shock to capital inflows and growth in gross domestic product improves banks’ loan portfolio quality, and ...

  12. The Web-based CanMEDS Resident Learning Portfolio Project (WEBCAM): how we got started.

    Science.gov (United States)

    Glen, Peter; Balaa, Fady; Momoli, Franco; Martin, Louise; Found, Dorothy; Arnaout, Angel

    2016-12-01

    The CanMEDS framework is ubiquitous in Canadian postgraduate medical education; however, training programs do not have a universal method of assessing competence. We set out to develop a novel portfolio that allowed trainees to generate a longitudinal record of their training and development within the framework. The portfolio provided an objective means for the residency program director to document and evaluate resident progress within the CanMEDS roles.

  13. More efficient optimization of long-term water supply portfolios

    Science.gov (United States)

    Kirsch, Brian R.; Characklis, Gregory W.; Dillard, Karen E. M.; Kelley, C. T.

    2009-03-01

    The use of temporary transfers, such as options and leases, has grown as utilities attempt to meet increases in demand while reducing dependence on the expansion of costly infrastructure capacity (e.g., reservoirs). Earlier work has been done to construct optimal portfolios comprising firm capacity and transfers, using decision rules that determine the timing and volume of transfers. However, such work has only focused on the short-term (e.g., 1-year scenarios), which limits the utility of these planning efforts. Developing multiyear portfolios can lead to the exploration of a wider range of alternatives but also increases the computational burden. This work utilizes a coupled hydrologic-economic model to simulate the long-term performance of a city's water supply portfolio. This stochastic model is linked with an optimization search algorithm that is designed to handle the high-frequency, low-amplitude noise inherent in many simulations, particularly those involving expected values. This noise is detrimental to the accuracy and precision of the optimized solution and has traditionally been controlled by investing greater computational effort in the simulation. However, the increased computational effort can be substantial. This work describes the integration of a variance reduction technique (control variate method) within the simulation/optimization as a means of more efficiently identifying minimum cost portfolios. Random variation in model output (i.e., noise) is moderated using knowledge of random variations in stochastic input variables (e.g., reservoir inflows, demand), thereby reducing the computing time by 50% or more. Using these efficiency gains, water supply portfolios are evaluated over a 10-year period in order to assess their ability to reduce costs and adapt to demand growth, while still meeting reliability goals. As a part of the evaluation, several multiyear option contract structures are explored and compared.

  14. Applying Portfolio Theory to EU Electricity Planning and Policy-Making

    Energy Technology Data Exchange (ETDEWEB)

    Awerbuch, Shimon; Berger, Martin

    2003-02-01

    This study introduces mean-variance portfolio theory and evaluates its potential application to the development of efficient (optimal) European Union (EU-15) generating portfolios that enhance energy security and diversification objectives. The analysis extends to European countries the previous work done by Awerbuch in the US, and applies a significantly more detailed portfolio model that reflects the risk of the relevant generating cost streams: fuel, operation and maintenance and construction period costs. It illustrates the portfolio effects of different generating mixes. The study offers preliminary findings on the effects of including more renewable energy sources in the typical EU portfolio mix and suggests interesting directions for further study. The study arises from the perception that these standard, finance-oriented analyses may offer valuable enhancements to energy planning, and concepts of energy security and diversity. Clearly the combination of better portfolio construction and more accurate pricing should lead to more optimal decisions in the round. This study, therefore, represents an effort to complement traditional approaches and point researchers and planners into new territory. The results generally indicate that the existing and projected EU generating mixes are sub optimal - though slightly - from a risk-return perspective, which implies that feasible portfolios with lower cost and risk exist. These can be developed by adjusting the conventional mix and by including larger shares of wind or similar renewable technologies. The results of the portfolio analysis suggest that fixed cost technologies such as renewables must be a part of any efficient generating portfolio. Our assessment of all technologies is limited to risk and cost measures, although other benefits, including low externality costs and sustainability, are often cited for renewables.

  15. Decarbonization of the U.S. electricity sector: Are state energy policy portfolios the solution?

    International Nuclear Information System (INIS)

    Carley, Sanya

    2011-01-01

    State governments have taken the lead on U.S. energy and climate policy. It is not yet clear, however, whether state energy policy portfolios can generate results in a similar magnitude or manner to their presumed carbon mitigation potential. This article seeks to address this lack of policy evidence and contribute empirical insights on the carbon mitigation effects of state energy portfolios within the U.S. electricity sector. Using a dynamic, long-term electricity dispatch model with U.S. power plant, utility, and transmission and distribution data between 2010 and 2030, this analysis builds a series of state-level policy portfolio scenarios and performs a comparative scenario analysis. Results reveal that state policy portfolios have modest to minimal carbon mitigation effects in the long run if surrounding states do not adopt similar portfolios as well. The difference in decarbonization potential between isolated state policies and larger, more coordinated policy efforts is due in large part to carbon leakage, which is the export of carbon intensive fossil fuel-based electricity across state lines. Results also confirm that a carbon price of $50/metric ton CO 2 e can generate substantial carbon savings. Although both policy options - an energy policy portfolio or a carbon price - are effective at reducing carbon emissions in the present analysis, neither is as effective alone as when the two strategies are combined. - Research highlights: → Scenario modeling exercise to assess effectiveness of state energy policy portfolios. → Regional coordination has greater decarbonization potential than state policies. → Some states benefit more from regional policy coordination than others. → Emissions leakage attenuates the effect of isolated state policy portfolios. → Carbon price with coordinated energy portfolio has greatest decarbonization potential.

  16. Estimated correlation matrices and portfolio optimization

    Science.gov (United States)

    Pafka, Szilárd; Kondor, Imre

    2004-11-01

    Correlations of returns on various assets play a central role in financial theory and also in many practical applications. From a theoretical point of view, the main interest lies in the proper description of the structure and dynamics of correlations, whereas for the practitioner the emphasis is on the ability of the models to provide adequate inputs for the numerous portfolio and risk management procedures used in the financial industry. The theory of portfolios, initiated by Markowitz, has suffered from the “curse of dimensions” from the very outset. Over the past decades a large number of different techniques have been developed to tackle this problem and reduce the effective dimension of large bank portfolios, but the efficiency and reliability of these procedures are extremely hard to assess or compare. In this paper, we propose a model (simulation)-based approach which can be used for the systematical testing of all these dimensional reduction techniques. To illustrate the usefulness of our framework, we develop several toy models that display some of the main characteristic features of empirical correlations and generate artificial time series from them. Then, we regard these time series as empirical data and reconstruct the corresponding correlation matrices which will inevitably contain a certain amount of noise, due to the finiteness of the time series. Next, we apply several correlation matrix estimators and dimension reduction techniques introduced in the literature and/or applied in practice. As in our artificial world the only source of error is the finite length of the time series and, in addition, the “true” model, hence also the “true” correlation matrix, are precisely known, therefore in sharp contrast with empirical studies, we can precisely compare the performance of the various noise reduction techniques. One of our recurrent observations is that the recently introduced filtering technique based on random matrix theory performs

  17. Developing and Validating a Science Notebook Rubric for Fifth-Grade Non-Mainstream Students

    Science.gov (United States)

    Huerta, Margarita; Lara-Alecio, Rafael; Tong, Fuhui; Irby, Beverly J.

    2014-07-01

    We present the development and validation of a science notebook rubric intended to measure the academic language and conceptual understanding of non-mainstream students, specifically fifth-grade male and female economically disadvantaged Hispanic English language learner (ELL) and African-American or Hispanic native English-speaking students. The science notebook rubric is based on two main constructs: academic language and conceptual understanding. The constructs are grounded in second-language acquisition theory and theories of writing and conceptual understanding. We established content validity and calculated reliability measures using G theory and percent agreement (for comparison) with a sample of approximately 144 unique science notebook entries and 432 data points. Results reveal sufficient reliability estimates, indicating that the instrument is promising for use in future research studies including science notebooks in classrooms with populations of economically disadvantaged Hispanic ELL and African-American or Hispanic native English-speaking students.

  18. Academic portfolio in the digital era: organizing and maintaining a portfolio using reference managers.

    Science.gov (United States)

    Bhargava, Puneet; Patel, Vatsal B; Iyer, Ramesh S; Moshiri, Mariam; Robinson, Tracy J; Lall, Chandana; Heller, Matthew T

    2015-02-01

    The academic portfolio has become an integral part of the promotions process. Creating and maintaining an academic portfolio in paper-based or web-based formats can be a cumbersome and time-consuming task. In this article, we describe an alternative way to efficiently organize an academic portfolio using a reference manager software, and discuss some of the afforded advantages. The reference manager software Papers (Mekentosj, Amsterdam, The Netherlands) was used to create an academic portfolio. The article outlines the key steps in creating and maintaining a digital academic portfolio. Using reference manager software (Papers), we created an academic portfolio that allows the user to digitally organize clinical, teaching, and research accomplishments in an indexed library enabling efficient updating, rapid retrieval, and easy sharing. To our knowledge, this is the first digital portfolio of its kind.

  19. Model Risk in Portfolio Optimization

    Directory of Open Access Journals (Sweden)

    David Stefanovits

    2014-08-01

    Full Text Available We consider a one-period portfolio optimization problem under model uncertainty. For this purpose, we introduce a measure of model risk. We derive analytical results for this measure of model risk in the mean-variance problem assuming we have observations drawn from a normal variance mixture model. This model allows for heavy tails, tail dependence and leptokurtosis of marginals. The results show that mean-variance optimization is seriously compromised by model uncertainty, in particular, for non-Gaussian data and small sample sizes. To mitigate these shortcomings, we propose a method to adjust the sample covariance matrix in order to reduce model risk.

  20. Portfolio Manager Selection – A Case Study

    DEFF Research Database (Denmark)

    Christensen, Michael

    2017-01-01

    Within a delegated portfolio management setting, this paper presents a case study of how the manager selection process can be operationalized in practice. Investors have to pursue a thorough screening of potential portfolio managers in order to discover their quality, and this paper discusses how...

  1. Purchasing portfolio models: a critique and update

    NARCIS (Netherlands)

    Gelderman, C.J.; Weele, van A.J.

    2005-01-01

    Purchasing portfolio models have spawned considerable discussion in the literature. Many advantages and disadvantages have been put forward, revealing considerable divergence in opinion on the merits of portfolio models. This study addresses the question of whether or not the use of purchasing

  2. Robust portfolio selection under norm uncertainty

    Directory of Open Access Journals (Sweden)

    Lei Wang

    2016-06-01

    Full Text Available Abstract In this paper, we consider the robust portfolio selection problem which has a data uncertainty described by the ( p , w $(p,w$ -norm in the objective function. We show that the robust formulation of this problem is equivalent to a linear optimization problem. Moreover, we present some numerical results concerning our robust portfolio selection problem.

  3. Managing R&D Alliance Portfolios

    DEFF Research Database (Denmark)

    Engel Nielsen, Lars; Mahnke, Volker

    2003-01-01

    be observed in several companies engaged in the cross section of telecommunication and mobile technology where increased complexity magnifies managerial challenges. Drawing on modern portfolio theory, this paper offers a model for managing portfolios of R&D alliances. In particular, an analysis...

  4. Essays on intertemporal consumption and portfolio choice

    NARCIS (Netherlands)

    van Bilsen, Servaas

    2015-01-01

    This dissertation consists of two parts, preceded by an introductory chapter. Part I (Chapters 2, 3 and 4) considers optimal consumption and portfolio choice using preference models. Chapter 2 analyzes optimal consumption and portfolio choice under loss aversion and endogenous updating of the

  5. Portfolios for Majors in Professional Communication.

    Science.gov (United States)

    Killingsworth, M. Jimmie; Sanders, Scott P.

    1987-01-01

    Suggests general principles for developing assignments where students prepare portfolios that reveal their overall communication skills in addition to the usual job search tools. Emphasizes that students should concentrate on including works in the portfolio with the criteria of quality, variety, professionalism, and maturity in mind. (SKC)

  6. Reflection during Portfolio-Based Conversations

    Science.gov (United States)

    Oosterbaan, Anne E.; van der Schaaf, Marieke F.; Baartman, Liesbeth K. J.; Stokking, Karel M.

    2010-01-01

    This study aims to explore the relationship between the occurrence of reflection (and non-reflection) and thinking activities (e.g., orientating, selecting, analysing) during portfolio-based conversations. Analysis of 21 transcripts of portfolio-based conversations revealed that 20% of the segments were made up of reflection (content reflection…

  7. IT Portfolio Selection and IT Synergy

    Science.gov (United States)

    Cho, Woo Je

    2010-01-01

    This dissertation consists of three chapters. The primary objectives of this dissertation are: (1) to provide a methodological framework of IT (Information Technology) portfolio management, and (2) to identify the effect of IT synergy on IT portfolio selection of a firm. The first chapter presents a methodological framework for IT project…

  8. Predictors and Portfolios Over the Life Cycle

    DEFF Research Database (Denmark)

    Kraft, Holger; Munk, Claus; Weiss, Farina

    In a calibrated consumption-portfolio model with stock, housing, and labor income predictability, we evaluate the welfare effects of predictability on life-cycle consumption-portfolio choice. We compare skilled investors who are able to take advantage of all sources of predictability with unskilled...

  9. Optimal Portfolio Choice with Wash Sale Constraints

    DEFF Research Database (Denmark)

    Astrup Jensen, Bjarne; Marekwica, Marcel

    2011-01-01

    We analytically solve the portfolio choice problem in the presence of wash sale constraints in a two-period model with one risky asset. Our results show that wash sale constraints can heavily affect portfolio choice of investors with unrealized losses. The trading behavior of such investors...

  10. On the Teaching of Portfolio Theory.

    Science.gov (United States)

    Biederman, Daniel K.

    1992-01-01

    Demonstrates how a simple portfolio problem expressed explicitly as an expected utility maximization problem can be used to instruct students in portfolio theory. Discusses risk aversion, decision making under uncertainty, and the limitations of the traditional mean variance approach. Suggests students may develop a greater appreciation of general…

  11. The Use of Portfolios in Leadership Education

    Science.gov (United States)

    Olsen, Paul E.

    2009-01-01

    This paper discusses the benefits of using student portfolios in undergraduate leadership education at Saint Michael's College. There appears to be a natural link between the use of portfolios as a tool to facilitate and document leadership growth and development. The Business Administration and Accounting Department at Saint Michael's College…

  12. Optimal portfolio choice under loss aversion

    NARCIS (Netherlands)

    A.B. Berkelaar (Arjan); R.R.P. Kouwenberg (Roy)

    2000-01-01

    textabstractProspect theory and loss aversion play a dominant role in behavioral finance. In this paper we derive closed-form solutions for optimal portfolio choice under loss aversion. When confronted with gains a loss averse investor behaves similar to a portfolio insurer. When confronted with

  13. Optimization of the bank's operating portfolio

    Science.gov (United States)

    Borodachev, S. M.; Medvedev, M. A.

    2016-06-01

    The theory of efficient portfolios developed by Markowitz is used to optimize the structure of the types of financial operations of a bank (bank portfolio) in order to increase the profit and reduce the risk. The focus of this paper is to check the stability of the model to errors in the original data.

  14. SunShot Initiative Portfolio Book 2014

    Energy Technology Data Exchange (ETDEWEB)

    Solar Energy Technologies Office

    2014-05-01

    The 2014 SunShot Initiative Portfolio Book outlines the progress towards the goals outlined in the SunShot Vision Study. Contents include overviews of each of SunShot’s five subprogram areas, as well as a description of every active project in the SunShot’s project portfolio as of May 2014.

  15. Portfolio Diversification Effects of Downside Risk

    NARCIS (Netherlands)

    N. Hyung (Namwon); C.G. de Vries (Casper)

    2004-01-01

    textabstractRisk managers use portfolios to diversify away the un-priced risk of individual securities. In this paper we compare the benefits of portfolio diversification for downside risk in case returns are normally distributed with the case fat tailed distributed returns. The downside risk of a

  16. The Shapley decomposition for portfolio risk

    OpenAIRE

    Stéphane Mussard; Virginie Terraza

    2006-01-01

    The aim of this paper is to provide an application of the Shapley Value to decompose financial portfolio risk. Decomposing the sample covariance risk measure yields relative measures, which enable securities of a portfolio to be classified according to risk scales.

  17. Applying an information literacy rubric to first-year health sciences student research posters*

    OpenAIRE

    Goodman, Xan; Watts, John; Arenas, Rogelio; Weigel, Rachelle; Terrell, Tony

    2018-01-01

    Objective This article describes the collection and analysis of annotated bibliographies created by first-year health sciences students to support their final poster projects. The authors examined the students’ abilities to select relevant and authoritative sources, summarize the content of those sources, and correctly cite those sources. Methods We collected images of 1,253 posters, of which 120 were sampled for analysis, and scored the posters using a 4-point rubric to evaluate the students...

  18. Applying an information literacy rubric to first-year health sciences student research posters

    OpenAIRE

    Xan Goodman; John Watts; Rogelio Arenas; Rachelle Weigel; Tony Terrell

    2018-01-01

    Objective: This article describes the collection and analysis of annotated bibliographies created by first-year health sciences students to support their final poster projects. The authors examined the students’ abilities to select relevant and authoritative sources, summarize the content of those sources, and correctly cite those sources. Methods: We collected images of 1,253 posters, of which 120 were sampled for analysis, and scored the posters using a 4-point rubric to evaluate student...

  19. Analysis of CDM Projects' Portfolio in West African Economic and Monetary Union - Regional Baseline Assessment in Energy Sector. Case Study: Benin, Burkina Faso, Niger and Togo

    OpenAIRE

    Satoguina, Honorat

    2006-01-01

    This study analyses current energy projects in Benin, Burkina Faso, Niger and Togo. Based on the size of these projects, the study shows that currently, only small scale CDM projects can be developed in these countries in energy sectors. Moreover, baseline emissions factors are assessed for the different electricity grids. These baselines are very low in interconnected grids in cities, while they are relatively high for isolated and non-connected utilities in remote areas. Consequently, count...

  20. [Concept extraction of graduate research by modified grounded theory approach and creating of rubric oriented to performance evaluation].

    Science.gov (United States)

    Yasuhara, Tomohisa; Sone, Tomomichi; Kohno, Takeyuki; Ogita, Kiyokazu

    2015-01-01

      A revised core curriculum model for pharmaceutical education, developed on the basis of the principles of outcome-based education, will be introduced in 2015. Inevitably, appropriate assessments of students' academic achievements will be required. Although evaluations of the cognitive domain can be carried out by paper tests, evaluation methods for the attitude domain and problem-solving abilities need to be established. From the viewpoint of quality assurance for graduates, pharmaceutical education reforms have become vital to evaluation as well as learning strategies. To evaluate student academic achievements on problem-solving abilities, authentic assessment is required. Authentic assessment is the evaluation that mimics the context tried in work and life. Specifically, direct evaluation of performances, demonstration or the learners' own work with integrated variety knowledge and skills, is required. To clarify the process of graduate research, we obtained qualitative data through focus group interviews with six teachers and analyzed the data using the modified grounded theory approach. Based on the results, we clarify the performance students should show in graduate research and create a rubric for evaluation of performance in graduate research.

  1. The extent and characteristics of United Kingdom hospital pharmacists keeping, or not keeping, a professional development portfolio.

    Science.gov (United States)

    Kostrzewski, Andrzej J; Dhillon, Soraya; Goodsman, Danë; Taylor, Kevin M G; Weinman, John A

    2009-10-01

    The aim of this study was to examine the use of continuing professional development (CPD) portfolios by hospital pharmacists. The objectives were to assess the extent to which pharmacists use portfolios in CPD and to examine the attitudes/beliefs which differentiate those who do and do not keep a portfolio. Participants completed two questionnaires: (1) personality traits were examined using the Big-Five questionnaire and (2) a new Pharmacist Portfolio-Engaging Behaviour Questionnaire (PPEBQ) examined the attitudes and beliefs. What constitutes a portfolio was left to the interpretation of the participants, but it was specified that the survey was about participants' views of producing written records of their professional practice for CPD. The setting was hospital pharmacists based in the London area in December 2004. Overall, 134 pharmacists (78%) returned both questionnaires, and 80 stated that they kept a portfolio and 52 stated that they did not (two questionnaires were returned spoilt). There was no significant difference in the age or number of years qualified between those with and without a portfolio. Three personality traits were linked to keeping a portfolio (conscientiousness, agreeableness and emotional stability). Pharmacists with a portfolio scored highly on the perceived behavioural control and behavioural intention scales of the PPEBQ. The Big-Five personality questionnaire is a useful tool to investigate pharmacists' use of a portfolio. Results of the PPEBQ suggested that hospital pharmacists who had a portfolio were concerned with having control over its production. However, the PPEBQ requires further development to improve its reliability. These findings have implications for the educational support of CPD.

  2. Portfolio Optimization and Mortgage Choice

    Directory of Open Access Journals (Sweden)

    Maj-Britt Nordfang

    2017-01-01

    Full Text Available This paper studies the optimal mortgage choice of an investor in a simple bond market with a stochastic interest rate and access to term life insurance. The study is based on advances in stochastic control theory, which provides analytical solutions to portfolio problems with a stochastic interest rate. We derive the optimal portfolio of a mortgagor in a simple framework and formulate stylized versions of mortgage products offered in the market today. This allows us to analyze the optimal investment strategy in terms of optimal mortgage choice. We conclude that certain extreme investors optimally choose either a traditional fixed rate mortgage or an adjustable rate mortgage, while investors with moderate risk aversion and income prefer a mix of the two. By matching specific investor characteristics to existing mortgage products, our study provides a better understanding of the complex and yet restricted mortgage choice faced by many household investors. In addition, the simple analytical framework enables a detailed analysis of how changes to market, income and preference parameters affect the optimal mortgage choice.

  3. Construction of an Engineer's Notebook Rubric

    Science.gov (United States)

    Kelley, Todd R.

    2014-01-01

    It is evident that there is a need for assessment instruments that measure design and engineering design skills, knowledge, and ways of design thinking. These student assessments must be authentic to engineering design practices and measure key elements of the engineering design process. Kelley (2011) presented a rationale to include…

  4. Enhancement of knowledge construction activities utilizing 21st century learning design rubric

    Science.gov (United States)

    Pedoche, Margarette Anne U.; Taladua, Janica Mae M.; Panal, Geicky Pearl C.; Magsayo, Joy R.; Guarin, Rica Mae B.; Myrna, H. Lahoylahoy

    2018-01-01

    The main objective of the study was to enhance knowledge construction activities on its design particularly the objectives, support materials, student activities and assessment tools. Activities from the 2nd Quarter of Science Learners Material were the basis in the adaptation of activities. The adapted activities were evaluated by the In-service Science teachers and undergone modification by the researchers based on the teacher's comments and suggestions. It was then evaluated, revised, and validated, tried-out using the 21st CLD Rubric. Subjects of the study were 110 students from Grade 7-B, Grade 7-D, Grade 7-F in Geronima Cabrera National High School, Kolambugan, Lanao del Norte during the academic year 2016-2017, the study to determine their learning capabilities investigated by the use of Knowledge Construction Activities in the 21st Century Classroom, to investigate how the lessons were understood and appreciated by students, to stimulate interpretation, analysis, synthesizing, or evaluating ideas and develop critical thinking. Both quantitative and qualitative data were obtained from the students' scores in three activities. Results showed that there was a significant difference between the pretest and posttest scores of students. Mean scores between the pretest and posttest showed a mean difference of 3.35, thus the null hypothesis was rejected. It could be concluded with sufficient evidence to show that the students had basically low prior knowledge about the topic ecosystem. A significant difference was seen in the pretest and posttest, scores of the activities and Ecosystem model results after the implementation phase that a knowledge construction type of activity was better than the traditional one for it promoted meaningful learning and active engagement of students. Based on the results, it was clear that the use of knowledge construction activities had an effect on student's achievement in comparison to traditional teaching method. Thus, it was

  5. PRODUCT PORTFOLIO ANALYSIS - ARTHUR D. LITTLE MATRIX

    Directory of Open Access Journals (Sweden)

    Curmei Catalin Valeriu

    2011-07-01

    Full Text Available In recent decades we have witnessed an unseen dynamism among companies, which is explained by their desire to engage in more activities that provide a high level of development and diversification. Thus, as companies are diversifying more and more, their managers confront a number of challenges arising from the management of resources for the product portfolio and the low level of resources with which companies can identify, at a time. Responding to these challenges, over time were developed a series of analytical product portfolio methods through which managers can balance the sources of cash flows from the multiple products and also can identify the place and role of products, in strategic terms, within the product portfolio. In order to identify these methods the authors of the present paper have conducted a desk research in order to analyze the strategic marketing and management literature of the last 2 decades. Widely were studied a series of methods that are presented in the marketing and management literature as the main instruments used within the product portfolio strategic planning process. Among these methods we focused on the Arthur D. Little matrix. Thus the present paper has the purpose to outline the characteristics and strategic implications of the ADL matrix within a company’s product portfolio. After conducting this analysis we have found that restricting the product portfolio analysis to the A.D.L. matrix is not a very wise decision. The A.D.L. matrix among with other marketing tools of product portfolio analysis have some advantages and disadvantages and is trying to provide, at a time, a specific diagnosis of a company’s product portfolio. Therefore, the recommendation for the Romanian managers consists in a combined use of a wide range of tools and techniques for product portfolio analysis. This leads to a better understanding of the whole mix of product markets, included in portfolio analysis, the strategic position

  6. Patent portfolio management: literature review and a proposed model.

    Science.gov (United States)

    Conegundes De Jesus, Camila Kiyomi; Salerno, Mario Sergio

    2018-05-09

    Patents and patent portfolios are gaining attention in the last decades, from the called 'pro-patent era' to the recent billionaire transactions involving patent portfolios. The field is growing in importance, both theoretically and practically and despite having substantial literature on new product development portfolio management, we have not found an article relating this theory to patent portfolios. Areas covered: The paper develops a systematic literature review on patent portfolio management to organize the evolution and tendencies of patent portfolio management, highlighting distinctive features of patent portfolio management. Interview with IP manager of three life sciences companies, including a leading multinational group provided relevant information about patent portfolio management. Expert opinion: Based on the systematic literature review on portfolio management, more specifically, on new product development portfolio theory, and interview the paper proposes the paper proposes a reference model to manage patent portfolios. The model comprises four stages aligned with the three goals of the NPD portfolio management: 1 - Linking strategy of the Company's NPD Portfolio to Patent Portfolio; 2 - Balancing the portfolio in buckets; 3 - Patent Valuation (maximizing valuation); 4 - Regularly reviewing the patent portfolio.

  7. 12 CFR 1252.1 - Enterprise portfolio holding criteria.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 7 2010-01-01 2010-01-01 false Enterprise portfolio holding criteria. 1252.1 Section 1252.1 Banks and Banking FEDERAL HOUSING FINANCE AGENCY ENTERPRISES PORTFOLIO HOLDINGS § 1252.1 Enterprise portfolio holding criteria. The Enterprises are required to comply with the portfolio holdings...

  8. The Finite and Moving Order Multinomial Universal Portfolio

    International Nuclear Information System (INIS)

    Tan, Choon Peng; Pang, Sook Theng

    2013-01-01

    An upper bound for the ratio of wealths of the best constant -rebalanced portfolio to that of the multinomial universal portfolio is derived. The finite- order multinomial universal portfolios can reduce the implementation time and computer-memory requirements for computation. The improved performance of the finite-order portfolios on some selected local stock-price data sets is observed.

  9. The national portfolio of learning for postgraduate family medicine training in South Africa: experiences of registrars and supervisors in clinical practice.

    Science.gov (United States)

    Jenkins, Louis; Mash, Bob; Derese, Anselme

    2013-11-08

    In South Africa the submission of a portfolio of learning has become a national requirement for assessment of family medicine training. A national portfolio has been developed, validated and implemented. The aim of this study was to explore registrars' and supervisors' experience regarding the portfolio's educational impact, acceptability, and perceived usefulness for assessment of competence. Semi-structured interviews were conducted with 17 purposively selected registrars and supervisors from all eight South African training programmes. The portfolio primarily had an educational impact through making explicit the expectations of registrars and supervisors in the workplace. This impact was tempered by a lack of engagement in the process by registrars and supervisors who also lacked essential skills in reflection, feedback and assessment. The acceptability of the portfolio was limited by service delivery demands, incongruence between the clinical context and educational requirements, design of the logbook and easy availability of the associated tools. The use of the portfolio for formative assessment was strongly supported and appreciated, but was not always happening and in some cases registrars had even organised peer assessment. Respondents were unclear as to how the portfolio would be used for summative assessment. The learning portfolio had a significant educational impact in shaping work-place based supervision and training and providing formative assessment. Its acceptability and usefulness as a learning tool should increase over time as supervisors and registrars become more competent in its use. There is a need to clarify how it will be used in summative assessment.

  10. Portfolio analysis of layered security measures.

    Science.gov (United States)

    Chatterjee, Samrat; Hora, Stephen C; Rosoff, Heather

    2015-03-01

    Layered defenses are necessary for protecting the public from terrorist attacks. Designing a system of such defensive measures requires consideration of the interaction of these countermeasures. In this article, we present an analysis of a layered security system within the lower Manhattan area. It shows how portfolios of security measures can be evaluated through portfolio decision analysis. Consideration is given to the total benefits and costs of the system. Portfolio diagrams are created that help communicate alternatives among stakeholders who have differing views on the tradeoffs between security and economic activity. © 2014 Society for Risk Analysis.

  11. Does asymmetric correlation affect portfolio optimization?

    Science.gov (United States)

    Fryd, Lukas

    2017-07-01

    The classical portfolio optimization problem does not assume asymmetric behavior of relationship among asset returns. The existence of asymmetric response in correlation on the bad news could be important information in portfolio optimization. The paper applies Dynamic conditional correlation model (DCC) and his asymmetric version (ADCC) to propose asymmetric behavior of conditional correlation. We analyse asymmetric correlation among S&P index, bonds index and spot gold price before mortgage crisis in 2008. We evaluate forecast ability of the models during and after mortgage crisis and demonstrate the impact of asymmetric correlation on the reduction of portfolio variance.

  12. Real Time Investments with Adequate Portfolio Theory

    Directory of Open Access Journals (Sweden)

    Alina Kvietkauskienė

    2015-02-01

    Full Text Available The objective of this paper is to identify investment decision makingschemes using the adequate portfolio model. This approach can be employed to project investment in stocks, using the opportunities offered by the markets and investor intelligence. It was decided to use adequate portfolio theory for investment decision making, simulation of financial markets, and optimisation of utility function. The main conclusion of article suggests investigating return on individual portfolio level. Real investment is a way to make sure of the soundness of applicable strategies.

  13. Portfolio of qualifications: a tool for evaluating academic productivity at the Karolinska Institutet.

    Science.gov (United States)

    Dahllöf, G; Ekstrand, J; Nordenström, J

    1999-02-01

    A Portfolio of Qualifications for academic appointments at the Karolinska Institutet has been developed to define more clearly the competence and qualifications which are given high priority for academic appointments at the Karolinska Institutet. The major fields of application are for new appointments and promotions, providing guidelines for the individual for improving his/her proficiency, and as a basis for determining individual salary rates. Four portfolios have been developed, a pedagogical, a clinical, a scientific, and a leadership, development and workplace relations portfolio. Attached to the portfolios are assessment forms. We consider the Qualifications Portfolio to be a reflection of changes in attitudes and values at the Karolinska Institutet. The system offers a method for the recognition of faculty productivity in different dimensions. This may be beneficial for the university in view of the increasing diversity and complexity of academic institutions. The Qualifications portfolio can be obtained from the world wide web, http:/(/)www.ki.se/ki/merit.se.html (in Swedish), http:/(/)www.ki.se/ki/merit.html (in English).

  14. A new active portfolio risk management for an electricity retailer based on a drawdown risk preference

    International Nuclear Information System (INIS)

    Charwand, Mansour; Gitizadeh, Mohsen; Siano, Pierluigi

    2017-01-01

    This paper addresses the deciding under uncertainty of an electricity retailer in order to maximise its total expected rate of return. The developed methodology is based on the modelling of the stochastic evolution of zonal prices that seeks to manage a portfolio of different contracts. Retailer's load and the price at each zone are forecasted using the seasonal autoregressive integrated moving average (SARIMA) model and a clustering technique is used for scenario reduction. Supply sources include the pool, self-production facilities, forward and bilateral contracts. The risk of cost fluctuation due to uncertainties is explicitly modelled using the multi-scenario drawdown methodology. This risk function quantifies in aggregated format the frequency and magnitude of the portfolio drawdowns over planning horizon. In-sample and out-of-sample runs are performed for a portfolio allocation problem. Carried out experimental results on the basis of realistic data, show that imposing risk constraints improve the “real” performance of a portfolio management in out-of-sample runs. - Highlights: • A new drawdown-based method is introduced to retailer deciding under uncertainty. • This tool is used to assess the risk levels regarding retailer midterm strategies. • The methodology is based on the modeling of the stochastic evolution of zonal prices. • The risk function quantifies the frequency and magnitude of the portfolio drawdowns. • In-sample and out-of-sample runs are performed for a portfolio allocation problem.

  15. Efficient power generating portfolio in Brazil: Conciliating cost, emissions and risk

    International Nuclear Information System (INIS)

    Losekann, Luciano; Marrero, Gustavo A.; Ramos-Real, Francisco J.; Fagundes de Almeida, Edmar Luiz

    2013-01-01

    The main purpose of this paper is to assess efficiency of the Brazilian electricity generation mix proposed in the 2020 Decennial Plan for Energy Expansion (DPEE 2020). It evaluates estimated costs, risks and CO 2 emissions following the mean–variance portfolio theory. The efficiency frontier is estimated for three CO 2 prices scenarios: no CO 2 prices, low CO 2 price and high CO 2 price. The planned portfolio in Brazil presented in the DPEE 2020 is relatively close to the efficient frontier, however there is still room for risk mitigation by diversifying the energy portfolio. As there is currently no CO 2 price in Brazil, the tendency is that diversification increases fossil fuel share in the energy mix, but the introduction of a CO 2 price can be an option to promote renewables. This type of large general market framework can contribute to reduce market uncertainties by reducing the level of government′s discretionary activism. -- Highlights: •We use portfolio theory to evaluate Brazilian generation mix expansion. •The Brazilian expansion plan is evaluated in three CO 2 price scenarios. •It is room to efficiency gains through portfolio diversification. •When CO 2 is not priced, fossil fuel increases it shares in the efficient portfolio. •High CO 2 prices increase the share of wind and biomass in the mix

  16. Measuring Treasury Bond Portfolio Risk and Portfolio Optimization with a Non-Gaussian Multivariate Model

    Science.gov (United States)

    Dong, Yijun

    The research about measuring the risk of a bond portfolio and the portfolio optimization was relatively rare previously, because the risk factors of bond portfolios are not very volatile. However, this condition has changed recently. The 2008 financial crisis brought high volatility to the risk factors and the related bond securities, even if the highly rated U.S. treasury bonds. Moreover, the risk factors of bond portfolios show properties of fat-tailness and asymmetry like risk factors of equity portfolios. Therefore, we need to use advanced techniques to measure and manage risk of bond portfolios. In our paper, we first apply autoregressive moving average generalized autoregressive conditional heteroscedasticity (ARMA-GARCH) model with multivariate normal tempered stable (MNTS) distribution innovations to predict risk factors of U.S. treasury bonds and statistically demonstrate that MNTS distribution has the ability to capture the properties of risk factors based on the goodness-of-fit tests. Then based on empirical evidence, we find that the VaR and AVaR estimated by assuming normal tempered stable distribution are more realistic and reliable than those estimated by assuming normal distribution, especially for the financial crisis period. Finally, we use the mean-risk portfolio optimization to minimize portfolios' potential risks. The empirical study indicates that the optimized bond portfolios have better risk-adjusted performances than the benchmark portfolios for some periods. Moreover, the optimized bond portfolios obtained by assuming normal tempered stable distribution have improved performances in comparison to the optimized bond portfolios obtained by assuming normal distribution.

  17. The Role of Agribusiness Assets in Investment Portfolios

    OpenAIRE

    Johnson, Michael; Malcolm, Bill; O'Connor, Ian

    2006-01-01

    Investment in agribusiness assets has grown significantly in recent years. The question of interest is whether including agribusiness assets in investment portfolios provide benefits. The effects of diversification by including agribusiness assets in two investment portfolios, a mixed asset portfolio and a diversified share portfolio was investigated using Markowitz’s (1952) Modern Portfolio Theory (MPT) of mean-variance optimization. To measure the performance of agribusiness assets, an in...

  18. An Extensive Evaluation of Portfolio Approaches for Constraint Satisfaction Problems

    Directory of Open Access Journals (Sweden)

    Roberto Amadini

    2016-06-01

    Full Text Available In the context of Constraint Programming, a portfolio approach exploits the complementary strengths of a portfolio of different constraint solvers. The goal is to predict and run the best solver(s of the portfolio for solving a new, unseen problem. In this work we reproduce, simulate, and evaluate the performance of different portfolio approaches on extensive benchmarks of Constraint Satisfaction Problems. Empirical results clearly show the benefits of portfolio solvers in terms of both solved instances and solving time.

  19. Optimal Portfolio Rebalancing Strategy : Evidence from Finnish Stocks

    OpenAIRE

    Savage, Akinwunmi

    2010-01-01

    Portfolio rebalancing is an established concept in portfolio management and investing generally. Assets within a portfolio have different return and risk prospects, and this inevitably leads them to drift away from their initial allocation weights overtime. Portfolio rebalancing is arguably the only method by which such assets can be reset to their initial weights, thus ensuring the portfolio reflects the risk appetite of the investor. Like many other concepts and practices in finance, portfo...

  20. 13 CFR 107.760 - How a change in size or activity of a Portfolio Concern affects the Licensee and the Portfolio...

    Science.gov (United States)

    2010-01-01

    ... of a Portfolio Concern affects the Licensee and the Portfolio Concern. 107.760 Section 107.760... § 107.760 How a change in size or activity of a Portfolio Concern affects the Licensee and the Portfolio Concern. (a) Effect on Licensee of a change in size of a Portfolio Concern. If a Portfolio Concern no...