The Impact of Educational Intervention on Aggression Level among High School Students in Ilam-Iran

Background Management and control of adolescence aggression improves constructive relationships, quality of life, and academic achievement. This research aimed to study the impact of educational intervention on reduction of aggression among male high school students in Ilam city, Iran. Materials and Methods This quasi-experimental intervention study using the pretest-posttest method was conducted on 70 aggressive male high school students in Ilam who were selected using the convenience sampling method. First, students were asked to fill out the Buss-Perry Aggression Questionnaire (BPAQ) and 70 of them with the highest score of aggression were selected as the sample. They received educational intervention for eight 90-minute sessions during one month. Then post-test data were collected and follow-up at three months after the intervention and statistically analyzed using SPSS-20. Results The mean age of subjects was 15.81+/-1.24 years old. 83 belonged to the urban community and 12.5 belonged to the rural community. The results showed that the educational intervention was effective in reduction of aggression levels and its four subscales (P<0.05). The results of the within-subject ANOVA indicated that the mean score of overall aggression, verbal aggression, physical aggression, anger, and hostility, follows a linear and descending trend from the posttest to the follow-up (P