Welcome

Thank you for visiting my web site. I am a Professor and Director of 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.

My program of research centers on the proposal, evaluation, and application of quantitative modeling techniques to improve research on the development of negative social and health behaviors and psychopathology. To this end, I have focused 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. On my web site, I include links to many of my publications and associated supplementary material like computer code and technical appendices. I also post information for prospective graduate students who may be interested in working with me.