Kevin J. Grimm, Ph.D. is a Professor in the Department of Psychology at Arizona State University, where he teaches classes on longitudinal growth modeling, exploratory data analysis, and structural equation modeling. He received his B.A. in Mathematics and Psychology with a concentration in Education from Gettysburg College in 2000, his M.A. and Ph.D. in Psychology from the University of Virginia (2001-2006). His research interests include longitudinal methodology, exploratory data analysis, and data integration, especially the integration of longitudinal studies. His recent research has focused on nonlinearity in growth models, growth mixture models, extensions of latent change score models, and approaches for analyzing change with limited dependent variables. Dr. Grimm is the director of the American Psychological Association’s Advanced Training Institute on Structural Equation Modeling in Longitudinal Research and has lectured at the workshop for the past fourteen years.