"I Felt Like a Hero:" Adolescents' Understanding of Resolution-Promoting and Vengeful Actions on Behalf of Their Peers.

Bystander intervention on behalf of victims of peer aggression is credited with reducing victimization, yet little is known about how bystanders evaluate their intervention efforts. African-, European-, Mexican-, and Native-American adolescents (N = 266) between 13 and 18 years (M = 15.0, 54% female) recounted vengeful and peaceful responses to a peer's victimization.