The Prevention Research Branch conducts behavioral and observational research to identify determinants of health behavior and test the efficacy and effectiveness of educational, behavioral, and environmental strategies for improving or protecting maternal, child, and adolescent health. The research is conducted within an adolescent development framework and focuses on the influences of individual characteristics, parents, and peers on adolescent health behavior. There are three main areas of ongoing research: young novice drivers, family management of diabetes, and adolescent problem behavior.