Research

With broad training in quantitative psychology, statistics, psychometrics, and data science — and years of experience in educational measurement — my research interests span multiple disciplines, crossing theoretical advances with practical applications. I am primarily interested in methodological issues in psychometrics, with latent variable modeling, Bayesian statistics, and mixed-effects models being the main focus of my current quantitative research program.

  • Diagnostic Classification Models (DCMs) — model development, estimation, and applied diagnostic measurement. See the DCM Book companion site.
  • Bayesian Psychometric Modeling — Bayesian formulations of confirmatory factor, IRT, and DCM models; estimation in JAGS, Stan, and nimble.
  • Multilevel Measurement Models — hierarchical extensions of measurement models for clustered, longitudinal, and multi-rater data.
  • Software & estimation methods — accessible implementations of contemporary psychometric models in R.
  • Rupp, A. A., Templin, J., & Henson, R. A. (2010). Diagnostic Measurement: Theory, Methods, and Applications. New York, NY: Guilford Press. → Companion site

For course-related code repositories (Bayesian, SEM, missing data, multilevel measurement, multivariate, etc.), see my GitHub profile.

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