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Brendgen, Mara; Boivin, Michel; Vitaro, Frank; Bukowski, William M.; Dionne, Ginette; Tremblay, Richard E.; Perusse, Daniel – Child Development, 2008
Based on a sample of 406 seven-year-old twins, this study examined whether exposure to friends' social or physical aggression, respectively, moderates the effect of heritability on children's own social and physical aggression. Univariate analyses showed that children's own social and physical aggression were significantly explained by genetic…
Descriptors: Aggression, Genetics, Interaction, Antisocial Behavior
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Sagar, H. Andrew; And Others – Child Development, 1983
Observations indicate Black and White sixth-grade students interacted primarily with others of their own sex and race. Boys interacted more across racial lines than did girls, and Blacks were almost twice as likely as Whites to be the source of cross-race interactions. Peer behaviors were more likely to be task-related when directed toward White…
Descriptors: Blacks, Classroom Research, Elementary Education, Elementary School Students