Measurement
RPQ: Reactive–Proactive Aggression Questionnaire
Reference and/or access link:
Dodge, K.A. and Coie, J.D. (1987). Social-information-processing factors in reactive and proactive aggression in children's peer groups. Journal of Personality and Social Psychology, 53(6): 1146-1158. doi: 10.1037/0022-3514.53.6.1146.