The study examined how adolescents' individual characteristics and class context are related to bystander behaviors in cases of ethnic victimization. The sample included 1065 adolescents in Sweden (M[subscript age] = 13.12, SD = 0.42; 55% males). Female adolescents, adolescents of immigrant background, and adolescents with positive attitudes…

Studies of adolescent or parent-based twins suggest that gene-environment correlation (rGE) is an important mechanism underlying parent-adolescent relationships. However, information on how parents' and children's genes and environments influence correlated parent "and" child behaviors is needed to distinguish types of rGE. The present…

Individual differences in inhibition were moderately but significantly stable over the two years of the study. Compared to other children, inhibited children engaged in less high quality peer play at home and in day care, and were less able to play alone in the mother's absence. Other findings underscored the predictive and construct validity of…