Rooyesh-e- Ravanshenasi Journal(RRJ)

The present study aimed to determine the effectiveness of acceptance and commitment therapy on impulsivity, feelings of involvement, and cognitive flexibility in adolescent boys with conduct disorder. The research method was a quasi-experimental design with a pre-test-post-test design and a control group. The statistical population of the study was adolescent boys with clinical and psychiatric diagnoses of conduct disorder referring to treatment and counseling centers in Tehran in 1403, from which 30 people were selected conveniently and randomly placed in two groups of 15 people, experimental and control. Data collection tools included the Barrett Impulsivity Questionnaire (1995, BIS-11), Gilbert and Allan Feelings of Involvement Questionnaire (1998, FTQ), and Dennis et al. Cognitive Flexibility Scale (2010, CFI). The experimental group received one session of acceptance and commitment therapy each week in 8 90-minute sessions. Multivariate analysis of covariance was used to analyze the data. The results showed that by controlling for the pre-test effect, there was a significant difference between the post-test of the experimental and control groups in impulsivity, feelings of involvement, and cognitive flexibility in adolescent boys with conduct disorder (p<0.05). From the above findings, it can be concluded that acceptance and commitment therapy affected impulsivity, feelings of involvement, and cognitive flexibility in adolescent boys with conduct disorder in the experimental group.