Roy Levy
Professor, The Sanford School
Professor, Institute for Social Science Research Affiliated Faculty
Quantitative Psychology Area Head and Professor, Psychology
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SS 120 TEMPE, AZ 85287-3701
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Mail code: 3701Campus: Tempe
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Long Bio
Roy Levy is a professor appointed in the Quantitative Psychology area in the Department of Psychology, as well as in the T. Denny Sanford School of Social and Family Dynamics, specializing in quantitative methodology. His research and teaching interests include methodological investigations and applications in psychometrics and statistical modeling, focusing on item response theory, structural equation modeling, and Bayesian approaches to inference and modeling. He also works in areas of assessment design, focusing on evidentiary principles and applications in innovative assessments. For more on his work, visit https://sites.google.com/a/asu.edu/roylevy/
Education
- Ph.D. Measurement, Statistics and Evaluation, University of Maryland 2006
- M.A. Measurement, Statistics and Evaluation, University of Maryland 2002
- B.A. Philosophy, University of Maryland 2001
Research Interests
Dr. Levy's work primarily concerns the use of statistical and psychometric models in assessment, education, and the social sciences more broadly. His interests include methodological investigations and applications in psychometrics and statistical modeling, with a focus on models and procedures associated with item response theory, structural equation modeling, Bayesian networks, and Bayesian approaches to inference. In connection with these areas, his current interests include dimensionality assessment, model checking, and model comparison. Dr. Levy also works in the area of assessment design, focusing on evidentiary principles and applications in complex, simulation-based assessments.
Publications
- Dubravka Svetina, Roy Levy. A framework for dimensionality assessment for multidimensional item response models. Educational Assessment (2014).
- Kim L. Gratz, Matthew T. Tull, Roy Levy. Randomized controlled trial and uncontrolled 9-month follow-up of an adjunctive emotion regulation group therapy for deliberate self-harm among women with borderline personality disorder. Psychological Medicine (2014).
- Dubravka Svetina, AAron V. Crawford, Roy Levy, Samuel B. Green, Lietta Scott, Marilyn S. Thompson, Joanna S. Gorin, Derek Fay, Katie L. Kunze. Designing small-scale tests: A simulation study of parameter recovery with the 1-PL. Psychological Test and Assessment Modeling (2013).
- John T. Behrens, Kristen E. DiCerbo, Nedim Yel, Roy Levy. Exploratory data analysis. Handbook of psychology, volume 2: Research methods in psychology (2013).
- Roy Levy, Jaehwa Choi. Bayesian structural equation modeling. Structural equation modeling: A second course (2nd ed.) (2013).
- Andre A. Rupp, Roy Levy, Kristen E. DiCerbo, Shauna Sweet, AAron V. Crawford, Tiago Calico, Martin Benson, Derek Fay, Katie L. Kunze, Robert J. Mislevy, John T. Behrens. Putting ECD into practice: The interplay of theory and data in evidence models within a digital learning environment. Journal of Educational Data Mining (2012).
- Dubravka Svetina, Roy Levy. An overview of software for conducting dimensionality assessment in multidimensional models. Applied Psychological Measurement (2012).
- Kim L. Gratz, Roy Levy, Matthew T. Tull. Emotion regulation as a mechanism of change in an acceptance-based emotion regulation group therapy for deliberate self-harm among women with borderline personality pathology. Journal of Cognitive Psychotherapy (2012).
- Robert J. Mislevy, John T. Behrens, Kristen E. DiCerbo, Roy Levy. Design and discovery in educational assessment: Evidence-centered design, psychometrics, and educational data mining. Journal of Educational Data Mining (2012).
- Samuel B. Green, Roy Levy, Marilyn S. Thompson, Min Lu, Wen-Juo Lo. A proposed solution to the problem with using completely random data to assess the number of factors with parallel analysis. Educational and Psychological Measurement (2012).
- John T. Behrens, Robert J. Mislevy, Kristen E. DiCerbo, Roy Levy. Evidence centered design for learning and assessment in the digital world. Technology-based assessments for 21st century skills: Theoretical and practical implications from modern research (2012).
- Patti West, Daisy W. Rutstein, Robert J. Mislevy, Junhui Liu, Roy Levy, Kristen E. DiCerbo, AAron V. Crawford, Younyoung Choi, Kristina Chapple, John T. Behrens. A Bayesian network approach to modeling learning progressions. Learning Progressions in Science: Current Challenges and Future Directions (2012).
- David L. Wodrich, Randa Jarrar, Jeffrey Buchhalter, Roy Levy, Catherine Gay. Knowledge about epilepsy and confidence in instructing students with epilepsy: Teachers’ responses to a new scale. Epilespy & Behavior (2011).
- Marina A. Bornovalova, Matthew T. Tull, Kim L. Gratz, Roy Levy, Carl W. Lejuez. Extending models of self-harm and suicide to inner-city substance users. Psychological Trauma: Theory, Research, Practice, and Policy (2011).
- Morris A. Okun, Rebecca Rios, Aaron V. Crawford, Roy Levy. Does the relation between volunteering and well-being vary with health and age?. International Journal of Aging and Human Development (2011).
- Roy Levy. Bayesian data-model fit assessment for structural equation modeling. Structural Equation Modeling: A Multidisciplinary Journal (2011).
- Roy Levy. Posterior predictive model checking for conjunctive multidimensionality in item response theory. Journal of Educational and Behavioral Statistics (2011).
- Roy Levy, Dubravka Svetina. A generalized dimensionality discrepancy measure for dimensionality assessment in multidimensional item response theory. British Journal of Mathematical and Statistical Psychology (2011).
- Roy Levy, Gregory R. Hancock. An extended model comparison framework for covariance and mean structure models, accommodating multiple groups and latent mixtures. Sociological Methods and Research (2011).
- John T. Behrens, Robert J. Mislevy, Kristen E. DiCerbo, Roy Levy. Evidence centered design for learning and assessment in the digital world. Technology-based assessments for 21st century skills: Theoretical and practical implications from modern research (2011).
- Aaron V. Crawford, Samuel B. Green, Roy Levy, Wen-Juo Lo, Lietta Scott, Dubravka Svetina, Marilyn S. Thompson. Evaluation of parallel analysis methods for determining the number of factors. Educational and Psychological Methods (2010).
- Lori A. Long, David L. Wodrich, Roy Levy, Michael M. Etzl, Annie T. Gieseking. Students with brain tumors: Their post-treatment perceptions of teachers, peers, and academics and retrospective views on school during treatment. Journal of Child Health Care (2010).
- Marina A. Bornovalova, Roy Levy, Kim L. Gratz, Carl W. Lejuez. Understanding the heterogeneity of BPD symptoms through latent class analysis: Initial results and clinical correlates among inner-city substance users. Psychological Assessment (2010).
- Robert J. Mislevy, John T. Behrens, Randy E. Bennett, Sarah F. DeMark, Dennis C. Frezzo, Roy Levy, Daniel H. Robinson, Daisy H. Rutstein, Valerie J. Shute, Ken Stanley, Fielding I. Winters. On the roles of external knowledge representations in assessment design. Journal of Technology, Learning, and Assessment (2010).
- Roy Levy. SEMModComp: An R package for calculating likelihood ratio tests for mean and covariance structure models. Applied Psychological Measurement (2010).
- Morris Okun, Roy Levy, Paul Karoly, Linda Ruehlman. Dispositional happiness and college student GPA: Unpacking a null relation. Journal of Research in Personality (2009).
- Roy Levy. Evidentiary reasoning in diagnostic classification models. Measurement: Interdisciplinary Research and Perspectives (2009).
- Roy Levy. SEMModComp: Likelihood ratio tests for mean and covariance structure models. (2009).
- Mislevy, Robert J (Author) ,Levy, Roy (Author) ,Kroopnick, Marc (Author) ,Rutstein, Daisy (Author) . Evidentiary foundations of mixture item response theory models. Forthcoming in. Advances in latent variable mixture models (2008).
- Roy Levy, Gregory Hancock. A framework of statistical tests for comparing mean and covariance structure models. Multivariate Behavioral Research (2007).
- Mislevy, Robert J (Author) ,Levy, Roy (Author) . Bayesian psychometric modeling from an evidence-centered design perspective. Handbook of statistics (2007).
- Levy, Roy (Author) ,Behrens, John T (Author) ,Mislevy, Robert J (Author) . Variations in adaptive testing and their on-line leverage points. Online assessment, measurement and evaluation: Emerging practices (2006).
- Williamson, David M (Author) ,Almond, Russell G (Author) ,Mislevy, Robert J (Author) ,Levy, Roy (Author) . An application of Bayesian networks in automated scoring of computerized simulation tasks. Automated scoring of complex tasks in computer-based testing (2006).
- John Behrens, Robert Mislevy, Malcolm Bauer, David Williamson, Roy Levy. Introduction to evidence centered design and lessons learned from its application in a global e-learning program. International Journal of Testing (2004).
- Roy Levy, Robert Mislevy. Specifying and refining a measurement model for a computer-based interactive assessment. International Journal of Testing (2004).
- Roy Levy, Robert J. Mislevy, John T. Behrens. MCMC in educational research. Handbook of Markov chain Monte Carlo: Methods and applications (0).
Research Activity
- Enders,Craig Kyle*, Levy,Roy. Multiple imputation procedures for multilevel data. ED-ERI(7/1/2015 - 7/1/2015).
- Levy,Roy*. Data Analytic and Psychometric Methods for Innovative Educational Systems. NCS Pears(9/1/2013 - 2/28/2016).
- Levy,Roy*. Hierarchical and Bayesian Analyses for Large Scale Complex Data. CISCO SYSTEMS INC(9/26/2012 - 7/25/2015).
- Levy,Roy*. Data Analytic and Psychometric Methods for Innovative Educational Systems. NCS Pears(9/1/2012 - 8/31/2013).
- Elliott,Stephen Nelson, Elliott,Stephen Nelson, Levy,Roy, Schulte,Ann C. National Research and Development Center on Assessment and Accountability for Special Education. UNIV. OF OREGON(10/4/2011 - 6/30/2016).
- Chi,Michelene T.H.*, Chi,Michelene T.H.*, Levy,Roy. Developing Guidelines for Optimizing Levels of Students' Overt Engagement Activities. ED-IES(8/15/2011 - 12/20/2015).
- Levy,Roy*. Psychometrics for Gaming and Simulation-Based Assessment. UCLA (AT LOS ANGELES)(2/1/2011 - 9/14/2013).
- Levy,Roy*. Generalized Dimensionality Assessment for Multidimensional Psychometric Models. ED-IES(9/1/2010 - 11/30/2012).
- Levy,Roy*. Hierarchical and Bayesian Analyses for Large Scale Complex Data. CISCO SYSTEMS INC(10/1/2009 - 9/30/2010).
- Levy,Roy*. Hierarchical and Bayesian Analyses for Large Scale Complex Data. CISCO SYSTEMS INC(8/15/2009 - 7/26/2013).
- Levy,Roy*. Complex Models for Innovative Educational Assessment. CISCO LEARNING INST(8/1/2008 - 7/31/2009).
Teaching Website URL
Courses
2023 Fall
| Course Number | Course Title |
|---|---|
| PSY 492 | Honors Directed Study |
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
| NEU 492 | Honors Directed Study |
| NEU 493 | Honors Thesis |
2023 Summer
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2023 Spring
| Course Number | Course Title |
|---|---|
| PSY 531 | Multiple Regression/Psych Res |
| FAS 598 | Special Topics |
| FAS 598 | Special Topics |
2022 Fall
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2022 Summer
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2021 Fall
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2021 Summer
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2021 Spring
| Course Number | Course Title |
|---|---|
| CDE 592 | Research |
| FAS 598 | Special Topics |
| FAS 598 | Special Topics |
| CDE 591 | Seminar |
2020 Fall
| Course Number | Course Title |
|---|---|
| CDE 592 | Research |
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
| FAS 510 | Bayes Analyses Social Science |
| SOC 510 | Bayes Analyses Social Science |
2020 Summer
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2020 Spring
| Course Number | Course Title |
|---|---|
| CDE 592 | Research |
| EDP 799 | Dissertation |
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 790 | Reading and Conference |
| EDP 599 | Thesis |
| SOC 390 | Social Statistics I |
| FAS 493 | Honors Thesis |
2019 Fall
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
| SOC 390 | Social Statistics I |
| SOC 390 | Social Statistics I |
| FAS 492 | Honors Directed Study |
| CDE 592 | Research |
2019 Summer
| Course Number | Course Title |
|---|---|
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 799 | Dissertation |
2019 Spring
| Course Number | Course Title |
|---|---|
| EDP 799 | Dissertation |
| EDP 592 | Research |
| EDP 792 | Research |
| EDP 790 | Reading and Conference |
| EDP 599 | Thesis |
| CDE 591 | Seminar |
Presentations
- Yu Liu, Roy Levy, Stephen G. West. Probing interactions in multiple regression: Frequentist versus Bayesian approaches. Joint Statistical Meetings (Aug 2014).
- Stephen G. West, Yu Liu, Roy Levy,. Testing simple slopes following significant interactions: The Aiken and West (1991) procedure and a Bayesian alternative. VI European Congress of Methodology (Jul 2014).
- Samuel B. Green, Keke Lai, Roy Levy, Yuning Xu, Nedim Yel, Marilyn S. Thompson, Natalie D. Eggum-Wilkens, Katie L. Kunze, Masumi Iida, Ray Reichenburg. Assessing model similarity in structural equation modeling. annual meeting of the American Educational Research Association (Apr 2014).
- Roy Levy. An introduction to Bayesian statistical modeling, or: A short list of reasons I am a Bayesian and you might be too. Invited Talk (Nov 2013).
- Roy Levy. An introduction to Bayesian statistical modeling, or: A short list of reasons I am a Bayesian and you might be too. Invited Talk (Jun 2013).
- Samuel B. Green, Marilyn S. Thompson, Roy Levy, Nick Redell. Accuracy of revised and traditional parallel analyses for assessing dimensionality with binary data. annual meeting of the American Educational Research Association (May 2013).
- Nedim Yel, Yuning Xu, Roy Levy. Dimensionality assessment for multidimensional item response models accommodating polytomous and missing data. annual meeting of the National Council on Measurement in Education (May 2013).
- Katie L. Kunze, Derek M. Fay, Aaron V. Crawford, Shawn M. Stockford, Kristina Chapple, Roy Levy, Melissa Kovacs. How to say N/A: Illuminating survey responses using missing data patterns and latent class modeling. annual meeting of the American Educational Research Association (May 2013).
- Derek M. Fay, Aaron V. Crawford, Katie L. Kunze, Roy Levy, Shawn M. Stockford, Kristina Chapple, Melissa Kovacs. Leveraging factor analysis and item response theory approaches to analyzing a large-scale student satisfaction survey. annual meeting of the American Educational Research Association (May 2013).
- Roy Levy. Psychometric and evidentiary advances, opportunities, and challenges for simulation-based assessment. Learning Sciences Institute ALL Series (Feb 2013).
- Roy Levy. Psychometric advances, opportunities, and challenges for simulation-based assessment. Center for K-12 Assessment & Performance Management at ETS Invitational Research Symposium on Techno (May 2012).
- Shauna J. Sweet, Aaron V. Crawford, Derek Fay, Katie L. Kunze, Roy Levy. Confirmatory modeling and data-model fit techniques for assessments embedded in digital learning environments. annual meeting of the National Council on Measurement in Education (Apr 2012).
- Derek Fay, Katie L. Kunze, Aaron V. Crawford, Roy Levy. Analysis of PTSBA product data using exploratory dimensionality assessment techniques. annual meeting of the National Council on Measurement in Education (Apr 2012).
- Samuel B. Green, Wen-juo Lo, Marilyn S. Thompson, Roy Levy. A stepwise hypothesis-testing approach to assess the number of underlying factors: Revised parallel analysis as an alternative to maximum likelihood testing. annual meeting of the American Educational Research Association (Apr 2012).
- Dubravka Svetina, Roy Levy. Dimensionality in compensatory MIRT when complex structure exists: Evaluation of DETECT and NOHARM. annual meeting of the American Educational Research Association (Apr 2012).
- Roy Levy. Generalized dimensionality assessment for multidimensional psychometric models. ETS Meeting (Jan 2012).
- Kim L. Gratz, Roy Levy, Matthew T. Tull. Innovative investigations of emotion regulation as a mechanism of change in treatments for BPD and related pathology. annual convention of the Association for Behavioral and Cognitive Therapies (Nov 2011).
- Roy Levy, AAron V. Crawford, Derek Fay, Katie Poole. Data-model fit assessment for Bayesian networks for simulation-based assessments. annual meeting of the American Educational Research Association (Apr 2011).
- Samuel B. Green, Roy Levy, Marilyn S. Thompson, Min Lu, Wen-Juo Lo, Dubravka Svetina, AAron V. Crawford, Lietta Scott. Use of completely random data to assess the number of factors with parallel analysis: An empirical evaluation of a conceptual flaw and its correction. annual meeting of the American Educational Research Association (Apr 2011).
- Roy Levy. Rules for communicating technical material and working with lay audiences. annual meeting of the National Council on Measurement in Education (Apr 2011).
- Roy Levy. An introduction to Bayesian statistical modeling, or, a short list of reasons I am a Bayesian and you might be too. Center for Population Dynamics, Arizona State University (Feb 2011).
- Roy Levy. Challenges to evidentiary reasoning and measurement modeling in game- and simulation-based assessment systems. Center for Advanced Technology in Schools (CATS) Workshop for Research on Games and Learning, the Na (Jan 2011).
- Roy Levy, Dubravka Svetina. A framework for dimensionality assessment for multidimensional item response models. annual meeting of the National Council on Measurement in Education (May 2010).
- Roy Levy. Bayesian data-model fit assessment for structural equation modeling. annual meeting of the American Educational Research Association (May 2010).
- Roy Levy. Providing diagnostic feedback using Bayesian networks in the Cisco Networking Academy. annual meeting of the American Educational Research Association (May 2010).
- Roy Levy. Psychometrics of Simulations and Games. National Center for Research on Evaluation, Standards, & Student Testing (CRESST) (Feb 2010).
- Shute, Valerie, Levy, Roy, Baker, Ryan, Zapata, Diego, Beck, Joseph. Assessment and learning in intelligent educational systems: A peek into the future. International Conference on Artificial Intelligence in Education (Jul 2009).
- Levy, Roy. Posterior predictive model checking for diagnostic classification models. Statistical and Applied Mathematical Summer Institute (Jul 2009).
- Levy, Roy. Markov chain Monte Carlo (MCMC) estimation for diagnostic classification models. Statistical and Applied Mathematical Summer Institute (Jul 2009).
- West, Patti, Rutstein, Daisy, Mislevy, Robert, Liu, Junhui, Levy, Roy, DiCerbo, Kristen, Crawford, Aaron, Choi, Younyoung, Behrens, John. A Bayes net approach to modeling learning progressions and task performances. Learning Progressions in Science Conference (Jun 2009).
- Crawford, Aaron, Green, Samuel, Levy, Roy, Lo, Wenjuo, Scott, Lietta, Svetina, Dubravka, Thompson, Marilyn. Evaluation of parallel analysis methods for determining the number of factors. Annual meeting of the American Educational Research Association (Apr 2009).
- Levy, Roy, Crawford, Aaron,. Bayesian network modeling for student- and domain-level inferences. Annual meeting of the American Educational Research Association (Apr 2009).
- Levy, Roy, Svetina, Dubravka. A new statistic and posterior predictive model checking procedure for assessing dimensionality in multidimensional item response theory. Annual meeting of the National Council on Measurement in Education (Apr 2009).
- Levy, Roy, Hancock, Gregory. A generalized model comparison framework for covariance and mean structure models, accommodating multiple groups and latent mixtures. Annual meeting of the American Educational Research Association (Apr 2009).
- Levy, Roy, Hancock, G. A generalized model comparison framework in structural equation modeling. Anual meeting of the Psychometric Society, Montréal, Canada (Jun 2006).
- Mislevy, R, Levy, Roy, Kroopnick, M, Wise, D. Evidentiary foundations of mixture item response theory models. Annual Center for Integrated Latent Variable Research conference, College Park, MD (May 2006).
- Choi, J, Levy, Roy, Hancock, G. Markov chain Monte Carlo estimation method with covariance data for structural equation modeling. Annual meeting of the American Educational Research Association, San Francisco, CA (Apr 2006).
- Kroopnick, M, Levy, Roy. Comparing fully Bayesian and marginal maximum likelihood estimation of multidimensional item response models for polytomous items. Annual meeting of the National Council on Measurement in Education, San Francisco, CA (Apr 2006).
- Levy, Roy, Hancock, G. Alternative approaches to validity in a modeling framework. Annual meeting of the American Educational Research Association, San Francisco, CA (Apr 2006).
- Levy, Roy, Mislevy, R, Sinharay, S. Posterior predictive model checking for multidimensionality in item response theory. Annual meeting of the National Council on Measurement in Education, San Francisco, CA (Apr 2006).
- Levy, Roy. Posterior predictive model checking for within-item multidimensionality. Department of Mathematics and Statistics, Wright State University, Dayton, OH (Nov 2005).
- Levy, Roy. Introduction to factor analysis. Basic Process in Addictive Behaviors Laboratory, University of Maryland, College Park, MD (Sep 2005).
- Levy, Roy. Introduction to item response theory. Basic Process in Addictive Behaviors Laboratory, University of Maryland, College Park, MD (Sep 2005).
- Levy, Roy. Introduction to structural equation modeling. Basic Process in Addictive Behaviors Laboratory, University of Maryland, College Park, MD (Sep 2005).
- Levy, Roy. Posterior predictive model checking for cognitively-based psychometric models. Annual meeting of the Psychometric Society, Tilburg, The Netherlands (Jul 2005).
- Levy, Roy, Hancock, G. A framework of statistical tests for comparing mean and covariance structure models. Annual meeting of the American Educational Research Association, Montréal, Canada (Apr 2005).
- Mislevy, R, Levy, Roy. On the roles of knowledge representations in assessment. Annual meeting of the American Educational Research Association, Montréal, Canada (Apr 2005).
- Frezzo, D, Levy, Roy, Kroopnick, M. Knowledge representations in curricular and psychometric design. Annual meeting of the American Educational Research Association, Montreal, Canada (Apr 2005).
- Levy, Roy, Hancock, G. A framework of statistical tests for comparing covariance structure models. Annual meeting of the American Educational Research Association, San Diego, CA (Apr 2004).
- Levy, Roy, Hancock, G. A statistical test for nonnested covariance models. Annual meeting of the American Educational Research Association, Chicago, IL (Apr 2003).
- Levy, Roy, Mislevy, R. Specifying and refining a complex measurement model. Annual meeting of the National Council on Measurement in Education, Chicago, IL (Apr 2003).
- Levy, Roy. Markov chain Monte Carlo estimation for assessment: Procedures and practices. Presented at Educational Testing Service, Princeton, NJ (Jun 2002).
- Levy, Roy. Introduction to evidence-centered design with an emphasis on evidence.
- Bornovalova, M, Levy, Roy, Daughters, S, Gratz, K, Lejuez, C. Understanding symptom clusters of BPD in and their clinical correlates in a sample of inner-city drug users. 40th annual convention of the Association for Behavioral and Cognitive Therapies
- Bornovalova, M, Levy, Roy, Lejuez, C, Daughters, S. Using latent class analysis in the diagnosis of BPD; initial results and clinical correlates. 20th annual meeting for Society for Research in Psychopathology
- Levy, Roy. A model comparison framework for structural equation modeling.
- Levy, Roy, Mislevy, R, Sinharay, S. Posterior predictive model checking for conjunctive multidimensionality in item response theory. Annual meeting of the National Council on Measurement in Education
- Levy, Roy. Factors affecting the dimension of best measurement and connections with unidimensional modeling. Annual meeting of the National Council on Measurement in Education
Service
- Journal of Educational Measurement, Associate Editor (2014 - Present)
- Journal of Educational Measurement, Associate Editor (2014 - Present)
- American Educational Research Association Structural Equation Modeling Special Interest Group, Reviewer (2013 - Present)
- Educational Measurement: Issues and Practice, Editorial Board (2013 - Present)
- Educational Measurement: Issues and Practice, Editorial Board (2013 - Present)
- Family and Human Development Graduate Committee, Member (2011 - Present)
- Family and Human Development Graduate Committee, Member (2011 - Present)
- Family and Human Development Graduate Committee, Member (2011 - Present)
- Educational Assessment, Editorial Board (2011 - Present)
- Educational Assessment, Editorial Board (2011 - Present)
- Educational Assessment, Editorial Board (2011 - Present)
- Educational Assessment, Editorial Board (2011 - Present)
- Quantitative Methods in the Social Sciences Committee, Member (2010 - Present)
- Quantitative Methods in the Social Sciences Committee, Member (2010 - Present)
- American Educational Research Association Structural Equation Modeling Special Interest Group, Chair (2008 - Present)
- Curriculum Committee, (2007 - Present)
- American Educational Research Association Educational Statisticians Special Interest Group, Reviewer (2005 - Present)
- American Educational Research Association Structural Equation Modeling Special Interest Group, Reviewer (2005 - Present)
- National Council on Measurement in Education, Reviewer (2005 - Present)
- American Educational Research Association, Reviewer (2003 - Present)
- Journal of Applied School Psychology, Editorial Board (2009 - 2013)
- Educational Measurement & Assessment Search Committee, Member (2012 - 2012)
- NCME Bradley Hanson Award for Contributions to Educational Measurement Award Committee, Committee Member (2009 - 2012)
- American Educational Research Association Division D Quantitative Dissertation Award Committee, Committee Member (2009 - 2012)
- Journal of Applied School Psychology, Editorial Board (2009 - 2011)
- Journal of School Psychology, Editorial Board (2008 - 2011)
- American Educational Research Association Division D Quantitative Dissertation Award Committee, Committee Member (2009 - 2011)
- National Science Foundation, Proposal Reviewer (2008)
- American Educational Research Association Structural Equation Modeling Special Interest Group, Co-Chair (2007 - 2008)
- Psychometrika, Ad hoc Reviewer (2004 - 2007)
- Educational Assessment, Ad hoc Reviewer (2005 - 2006)
- 5th Year B.A./M.A. Program, Department of Measurement, Statistics & Evaluation, University of Maryland, Mentor (2002 - 2006)
- Rao, C. R., & Sinharay, S. (Eds.) Handbook of statistics, Volume 27: Psychometrics. North-Holland: Elsevier, Reviewer (2005 - 2005)
- Faculty Search Commitee, Department of Measurement, Statistics & Evaluation University of Maryland, Member (2004 - 2005)
- Structural equation modeling: A second course. Greenwich, CT: Information Age Publishing, Editorial Assistant (2003 - 2005)