The effect of classroom aggression-related peer group norms on students' short-term trajectories of aggression
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Using a four-wave/seven-month longitudinal design with a sample of 1595 preadolescents (53% boys, 47% girls, Mage = 10.2 years) from 63 fourth-, fifth- and sixth- grade classrooms in nine mixed-sex schools in Bogotá, Colombia, we examined whether growth traje... ...
