Thank you for visiting my web site. I am a Professor in the Quantitative Psychology Program and L.L. Thurstone Psychometric Laboratory of the Department of Psychology and Neuroscience at the University of North Carolina at Chapel Hill. On my web site, I keep copies of many of my publications and conference presentations, as well as related supplementary material like computer code and technical appendices.

Research Interests

The overarching goals of my program of research are to propose, evaluate, and apply quantitative modeling techniques to improve research on the development of negative social and health behaviors and psychopathology. I have focused particularly on generalized and nonlinear latent variable models, a broad class of models which includes multilevel models, factor analysis, structural equation models, latent curve models, item response theory models, latent class models, and mixture models.