J. David Hawkins (USA) is the Endowed Professor of Prevention and Founding Director of the Social Development Research Group at the University of Washington, USA. His research focuses on understanding and preventing child and adolescent health and behavior problems. He develops and tests prevention strategies which seek to reduce risk through the enhancement of strengths and protective factors in families, schools, and communities. He is principal investigator of a randomized field experiment across seven states testing the effectiveness of the Communities That Care prevention system. David Hawkins is committed to translating research into effective practice and policy to improve adolescent health and development.