LAUSR

Abstract Motives for aggression can be reactive or proactive. While research on these motives for aggression exists in Western societies, little is known about their prevalence in a non-Western society such as Malaysia. The first step to narrow this gap is to validate an instrument, which measures levels of reactive and proactive aggression. In the present study we translated the instrument for reactive and proactive aggression (IRPA) self-report, and examined its psychometric properties in 957 Malaysian adolescents. Participants completed the IRPA self-report along with instruments measuring victimization, anger, shame, and guilt. The outcomes confirmed the expected two-factor structure, good internal consistency and validity of the IRPA self-report in a Malaysian sample.