Barry H. Schneider is Professor of Psychology and Vice-Dean of Research (Social Sciences) at the University of Ottawa, Canada, where he has taught since 1981. Since that time, he has received several professional awards, including Professor of the Year, Bea Wickett Award for an outstanding contribution to mental health in education, and fellow status with the Canadian Psychological Association. In addition to his research in Canada, he has worked in Costa Rica, Cuba, France, Hungary, and Italy. Dr Schneider is the author of three books, Friends and Enemies: Peer Relations in Childhood (London,...