title: Gender and age differences in self-reported aggression of high school students.
abstract: The purpose of the study was to (a) investigate gender and age differences in physical aggression, verbal aggression, anger, and hostility, and (b) examine the discriminatory power of the Greek version of the Aggression Questionnaire (GAQ) with high school students. The sample of the study consisted of 658 high school students (321 boys and 337 girls), with an age range from 13 to 17 years (M = 15.3, SD = 1.5). The students completed the Aggression Questionnaire adapted to Greek. Regarding gender, the overall correct identification rate in the discriminant analysis showed that 73.3% of the cases were correctly classified. In addition, the results indicated that physical aggression declined with age and that, compared to boys, girls of higher grades apply more indirect forms of aggression, such as anger and hostility. The findings of the study provide important information regarding the expression of aggressive behavior during adolescence.
authors.affiliation: Aristotle University of Thessaloniki, Thessaloniki, Greece.
authors.forename: Haralambos
authors.initials: H
authors.lastname: Tsorbatzoudis
authors.forename: Antonios K
authors.initials: AK
authors.lastname: Travlos
authors.forename: Angelos
authors.initials: A
authors.lastname: Rodafinos
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000374:Aggression / Q000145:classification* / Q000523:psychology; D005260:Female; D006115:Greece; D006791:Hostility; D006801:Humans; D007398:Interpersonal Relations; D007604:Juvenile Delinquency / Q000145:classification* / Q000523:psychology; D008297:Male; D010379:Peer Group; D012737:Sex Factors; D013334:Students / Q000523:psychology / Q000706:statistics & numerical data*