Study of same-sex play networks found that between ages four and six, the size of girls' play networks decreases along with the number of girls excluded. Although results did not confirm the hypothesis that the size of boys' play networks increases, there was a trend for boys in the older classes to exclude fewer playmates from their networks. (AA)

Investigated associations between parents' reported coercion and negotiation with their children, children's self-reported conflict strategies with peers, and their behavioral competence rated by both parents. Results obtained through observation, interviews, and questionnaires included a concurrent correlation between parents' use of coercion and…