Methods
aggression
This was a quasi-experimental study, using pretest-posttest design with a control group. In the 2019–2020 academic year, the statistical population comprised all female students in high school first and second years in the city of Yazd, Iran. Using purposive sampling and based on include and exclude criteria (high risk of aggression due to their scores on a screening test and Parental consent to participate in the class) 30 female students were selected. Randomly, they were assigned to an experimental(n = 15) and control groups(n-15). The Buss-Perry Aggression Questionnaire was conducted on students. The experimental group had 8 intervention sessions, whereas the control group received no intervention. The data were subsequently examined using Analysis of Covariance(ANCOVA).