Rated gender boundary violation and maintenance of 47 preadolescents participating in a summer day camp. Found that children who violated gender boundaries tended to be unpopular with peers; and children who maintained boundaries were judged by camp counselors to be more competent socially than children who violated boundaries. (MDM)

Examined assertive bids of elementary school children engaged in a cooperative task. Results from kindergarten and grade one participants support previous research regarding greater male assertiveness and attempts to influence other boys. By grade three, girls' overall assertiveness equaled that of boys. (Author/DB)

Observed the decision-reaching and leadership behavior of children in same- amd mixed-age triads by coding their verbalizations in arriving at a consensus for their preference ranking of eight pictures. (HOD)

Children between three and nine years of age were randomly assigned to so-called fast or slow teams and were asked to make self- and intergroup evaluations. Five year olds had high self-evaluations, strong in-group bias, and high group cohesion regardless of which group they were in. (BC)

Examined the interrelations of group contextual factors and the occurrence of aggressive behavior in 22 experimental play groups of 7- and 9-year-old African American boys. Found that negative affect, high aversion behavior, high activity level, low group cohesion, and competitiveness were related to the occurrence of aggressive behavior. (MDM)

Investigated the relationship between peer group identification and similarity between individuals involved in problem behavior, and whether group identification moderated group influence on development of delinquent behavior among Italian sixth- and seventh-graders. Found that group behavior interacted with reciprocity of group nominations in…