Hartup, Willard W.

Richard E. Tremblay, PhD, is Professor of Pediatrics, Psychiatry, and Psychology at the University of Montreal and Director of the Inter-University Research Unit on Children's Psychosocial Maladjustment. For over 20 years, he has conducted a program of longitudinal and experimental studies addressing the physical, cognitive, emotional, and social development of children from conception onward to understand the development and prevention of antisocial behavior.
Willard W. Hartup, EdD, is Regents' Professor Emeritus and former Director of the Institute of Child Development at the University