Stephen S. Leff, PhD | BIO

Stephen S. Leff, PhD, is the Co-Director of the Center for Violence Prevention at CHOP, a licensed Psychologist, and the William H. Bennett Professor of Psychology in Pediatrics at the Perelman School of Medicine at the University of Pennsylvania. His research focuses on aggression and bullying prevention programming, relational aggression which is the use of rumors and social exclusion to harm others, the community-based participatory research process which is working with community champions to integrate their voices and perspectives into best practice empirically-supported programming, and Scientific Edutainment which integrates empirical science with the latest entertainment technology in order to make educational programming evidence-based, engaging and relevant to youth. Dr. Leff has been the recipient of a number of federal grants and foundation awards to support his intervention research.