A Cross-cultural study of the psychometric properties of the Reactive-Proactive Aggression Questionnaire among Italian non-clinical adolescents.

Five independent studies were used to test the hypothesis that a reliable 2-factor structure underlies theReactive–Proactive Aggression Questionnaire (RPQ) items and that the 2 scales show distinct patterns ofassociation with personality and bullying behavior measures. Study 1 (N 1,447) gave evidence of aclear 2-factor structure of RPQ items with factor loading matrices closely matching reactive (congruencecoefficient .90) and proactive (congruence coefficient .91) models of item assignment. The RPQ2-factor structure was consistently replicated in Study 2 (N 662), as well as across the remaining 3studies. In Study 3 (N 536), Neuroticism differentiated reactive and proactive forms of aggression. InStudy 4 (N 674), self-reports of bullying behaviors were selectively correlated with proactiveaggression. Findings confirm and extend the differential correlates of proactive–reactive aggression andalso support the psychometric properties of the RPQ in a different cultural context. Finally, in Study 5(N 347), the RPQ scales showed adequate 2-month test–retest reliability.