I have also served on the Research and Psychometric committee for the PARCC consortium testing program representing Maryland and currently on the Research Advisory Committee for the Prince George Public School of Maryland. As Director of the Maryland Assessment Research Center (MARC), I work with the team to provide psychometric research and service to meet the State assessment needs. I am currently chairing the Technical Advisory Committee (TAC) for the Maryland state testing programs, working with the TAC members to help the state provide rigorous testing programs. I have participated in a variety of professional service activities. I proposed a multilevel testlet model for mixed-format tests that won the 2014 Bradley Hanson Award for Contributions to Educational Measurement by the National Council on Measurement in Education. My methodological research has been recognized by a national award, academic work including numerous edited books, book chapters, refereed journal papers, and national and international invited and refereed presentations and over $4 million research grants and contracts on which I serve as PI or CO-PI. My research agenda can be summarized into five general categories: methodological research on local dependence due to the use of testlets, modeling and methods for classification and cognitive diagnosis, Bayesian model parameter estimation, research on computer-based testing, and practical psychometric issues in large-scale tests. I have successfully established a coherent program of research by integrating item response theory (IRT) models, cognitive diagnostic models (CDM), and machine learning methods with multilevel and finite mixture modeling approaches with an aim to exert a positive and lasting effect on measurement practice in large-scale assessments and for cognitive diagnosis purposes. I believe that ultimately this work will promote the use of assessment data for cognitive diagnosis to facilitate learning and instruction. Many of these are due to the use of more complex innovative assessment formats. The overarching goal of my methodological research is to improve the practice in educational and psychological assessment and develop solutions to emerging psychometric challenges. Prior to joining the faculty in Measurement, Statistics, and Evaluation at UMD, I worked as a psychometrician at Harcourt Assessment on different state assessment programs. I received my PH.D from Florida State University in Measurement, Statistics, and Evaluation. I am currently a Professor at the University of Maryland (UMD), College Park specializing in educational measurement and psychometrics in large-scale assessment and also Director of Maryland Assessment Research Center (MARC).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |