The focus of her research is health psychology, specifically the development of multicomponent models of condom-use behavior on which HIV-prevention-intervention content can be based. This work focuses primarily on adolescents at risk for HIV or STDs and is funded by National Institute on Alcohol Abuse and Alcoholism. Recently, she has begun work on exercise behavior and is interested in the psychological, biological, and genetic determinants of the initiation and maintenance of voluntary physical activity. She also has interests in evolutionary social psychology, particularly attraction and mating behavior.