At Penn State Dr. Greenberg is Director of The Prevention Research Center for the Promotion of Human Development (http://www.prevention.psu.edu ). The Prevention Center aims to promote the well-being of children and youth and to reduce the prevalence of high risk behaviors and poor outcomes for children, families and communities. The center has four primary goals; (1) conduct collaborative research to examine the effectiveness of innovative models of preventive intervention. (2) provide training on topics related to prevention research, (3) provide assistance to Pennsylvania communities on the development, implementation, and evaluation of prevention programs, and (4) provide policy-relevant information on best practices to federal, state and local governments.