KENNETH H. RUBIN (B.A., McGill, 1968; Ph.D., Pennsylvania State, 1971), is Professor of Human Development and Quantitative Methodology and Founding Director, Center for Children, Relationships, and Culture at the University of Maryland – College Park. Previously, he was Professor, Department of Psychology, University of Waterloo, and has held Visiting Appointments at Stanford U., U. Washington, U. Melbourne (Australia), and the Max-Planck-Institut fur Psychologische Forschung (Munich). His research interests include the study of child and adolescent social development, especially peer and parent-child relationships; social and emotional adjustment and maladjustment in childhood and adolescence; the origins and developmental course of social competence, social withdrawal, and aggression; and “all of the above” from a cross-cultural perspective. Many of his over 350 peer-reviewed publications have been co-authored by colleagues on five continents. Among his recent books are the Handbook of Peer Interactions, Relationships, and Groups (with William Bukowski and Brett Laursen, 2009; 2nd edition, in press); The Development of Shyness and Social Withdrawal (with Robert Coplan, 2010); Social Anxiety in Childhood: Bridging Developmental and Clinical Perspectives (with Heidi Gazelle, 2010); and Socioemotional Development in Cultural Context (with Xinyin Chen, 2011). His book, The Friendship Factor (2002) received the National Parenting Publications Gold Award.