I have conducted research investigating cognitive development in children from early childhood to adolescence, with a primary focus on the development of social cognition and metacognition.My interest in developmental psychology began as a student at the University of California, Berkeley, where I received a B.A. in Psychology in 1982. I graduated from Stanford University with a Ph.D. in Psychology in 1986. After spending two years as a postdoctoral fellow at the University of Minnesota’s Center for Research on Learning, Perception, and Cognition, I taught at the University of Pittsburgh as a faculty member in the Department of Psychology. I joined the Department of Psychology at Northern Illinois University in 1995. I have served as a consulting editor for Child Development and Genetic Psychology Monographs, and as editor for the Journal of Genetic Psychology.