the mediating role of pleasant activities in cognitive behavioral therapy for depressed adolescents

Introduction: the purpose of this study was to investigate the effectiveness of cognitivebehavioral therapy in the depression of adolescents by an increase in pleasurable activities as a mediation. method: the statistical population included all adolescent girls (ages14to17) in isfahan. in the form of an empirical study with a control and an experimental group and by evaluation of pretest and posttest, 60girls which had been diagnosed with depression were selected and randomly assigned into two groups. subjects, using beck depression inventory (bdiii) and pleasant events schedule (pes).data were analyzed for mediation analysis by r software and ancova by spss24. results: findings show that cognitivebehavioral therapy is effective in increasing pleasurable activities (path coefficient: 0.19). the increase of pleasurable activities is effective in reducing depression (path coefficient: 0.35) and the cognitivebehavioral therapy by the mediation of pleasurable activities (path coefficient: 0.28) is effective. the entire effect of cognitivebehavioral therapy was on depression (β=0.28). actually, 22%direct and 0.06%indirect effects was applied through the effect of pleasurable activities on depression. conclusion: mediation analysis showed that pleasant events can play a mediating role in the relationship between depression and cognitivebehavioral therapy and can be used in shortterm treatments.