procedure - 72, participants 36 m/f, children age 6 - 3 group 1 observed an adult demonstrating psychical and verbal aggression towards a bobo doll and group 2 watched an adult play non-aggressively. group 3- control findings: children exposed to the violent model were more likely to be aggressive (imitation) and boys were more likely to mimic a psychical aggressive male model ( identification) girls mimicked a verbal aggression