Penulis: Erin Phelps

AMY EVA ALBERTS WARREN, Ph D, is a Research Scientist at the Institute for Applied Research in Youth Development, Tufts University. RICHARD M. LERNER, Ph D, is the Bergstrom Chair in Applied Developmental Science and the Director of the Institute for Applied Research in Youth Development at Tufts University. He has edited or coedited many publications, including The Handbook of Life-Span Development (Wiley), and was the founding editor of both the Journal of Research on Adolescence and Applied Developmental Science. ERIN PHELPS, Ed D, is a Research Scientist at the Institute for Applied Research in Youth Development, Tufts University.