Measurement Invariance and Psychometric Properties of the Reactive and Proactive Aggression Questionnaire (RPQ) Across Genders
Aggression is an important risk factor that predisposes adolescents to disruptive and criminal behaviours. The purpose of the present study was to investigate the structural invariance and psychometric properties of the Persian version of the Reactive-Proactive Aggression Questionnaire (RPQ) across genders among adolescents. A sample of 450 students (Mage = 14 years, SD = 0.81) was recruited randomly and completed the Persian version of the RPQ, Child Behavior Checklist and Strengths and Difficulties Questionnaire. Although the two-factor model obtained the best fit across genders, the results did not support the equivalence of factor loadings across groups. These findings replicated the distinction of reactive and proactive aggression while implied different models of the RPQ based on gender. Suggestions for future research and a more accurate assessment of these two kinds of aggression are further discussed.