Article
Kindergarten children's genetic vulnerabilities interact with friends' aggression to promote children's own aggression.
Journal of the American Academy of Child and Adolescent Psychiatry - 1 Aug 2007
VAN Lier Pol, Boivin Michel, Dionne Ginette, Vitaro Frank, Brendgen Mara, Koot Hans, Tremblay Richard E, Pérusse Daniel
Abstract excerpt
OBJECTIVE: To examine whether kindergarten children's genetic liability to physically aggress moderates the contribution of friends' aggression to their aggressive behaviors. METHOD: Teacher and peer reports of aggression were available for 359 6-year-old twin pairs (145 MZ, 212 DZ) as well as teacher and peer reports of aggression of the two best friends of each twin. Children's genetic risk for aggression was...
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