I am a Professor in the Department of Psychology at the University of California, Davis and member of the Graduate Group in Biostatistics. My research interests include methods to analyze change and intra-individual variability, in particular latent change models and dynamical systems. My current research in this area involves techniques to model multivariate processes associated with the development of reasoning from childhood to adolescence, and models to capture dyadic interactions over time. I am co-editor of the recent volume Statistical Methods for Modeling Human Dynamics and co-author of the upcoming Dynamics of Dyadic Interactions.