Psychometric evaluation of the Greek version of the Aggression Questionnaire.

The study assesses the psychometric properties of the Greek version of the Aggression Questionnaire by Buss and Perry in a sample of 760 Greek high school students. This questionnaire has been widely used to study Physical Aggression, Verbal Aggression, Anger, and Hostility. A confirmatory factor analysis of responses showed adequate fit for the original 4-factor model (total variance explained: 68.2%). The analysis also showed satisfactory internal consistency and temporal stability over 6 to 8 weeks. Also, the construct validity, extreme groups' validity, and predictive validity indices were adequate. Greek female students adopted more indirect forms of aggression (Hostility) than males, who applied more direct forms such as Physical Aggression. Findings supported the use of the Greek version of the questionnaire for assessment in high school students.