Dr. Edwards is interested in measurement issues in the social sciences. Most of his work has been in the realms of item response theory (IRT) and factor analysis. Some topics he is currently interested in or working on include multidimensional IRT (aka item factor analysis) models, minimum detectable change, multi-stage adaptive testing, measurement models for multiple reporters, local dependence diagnostics, and model fit (and misfit). In addition, he has developed software to allow researchers to estimate item factor analysis models using MCMC.
PhD, Quantitative Psychology, University of North Carolina at Chapel Hill
MA, Quantitative Psychology, University of North Carolina at Chapel Hill
BA, Psychology and English, Ursinus College
American Academy of Family Physicians Foundation, American College of Rheumatology, Arthritis Foundation, College Board, Department of Health and Human Services, National Institute on Aging, National Institute on Drug Abuse, National Institutes of Health, National Science Foundation, Robert Wood Johnson Foundation, VA Healthcare System of Ohio