Associate Professor
My primary research area is infant and child temperament with a focus on activity level.  I am particularly interested in etiology of individual differences in the development of temperament, and much of my research involves the study of twins in an effort to disentangle the contributions of genetic and environmental factors to the development of temperament and related behaviors.  A second focus of my research is on the measurement of temperament in childhood.  Specifically, the factors that influence the validity of parents' ratings of their child's temperament.