KMAN Publication Inc. (KMANPUB) Journal of Adolescent and Youth Psychological Studies (JAYPS) 2981-2526 6 Serial Number 34 2025 06 10 The Effectiveness of Mindfulness-Based Cognitive Therapy on Psychological Flexibility and Zest for Life in Adolescents The Effectiveness of Mindfulness-Based Cognitive Therapy on Psychological Flexibility and Zest for Life in Adolescents 1 6 10.61838/kman.jayps.6.6.1 EN Journal Article 2025 03 20 <table> <tbody> <tr> <td> <p><strong>Objective:</strong> The present study aimed to determine the effectiveness of Mindfulness-Based Cognitive Therapy (MBCT) on psychological flexibility and zest for life in adolescents.</p> <p><strong>Methods and Materials:</strong> The research method was a quasi-experimental design with experimental and control groups, including pre-test and post-test. The statistical population consisted of adolescents who referred to counseling centers in the city of Babol in 2023. The research sample included 30 adolescents selected through convenience sampling, who were then randomly assigned into two groups of 15 participants each (experimental and control). To assess the variables under study, the Psychological Flexibility Questionnaire and the Zest for Life Questionnaire were employed. The experimental group received eight 90-minute sessions of MBCT, while the control group did not receive any specific intervention.</p> <p><strong>Findings:</strong> The findings from data analysis showed that there was a significant difference in the post-test mean scores of psychological flexibility and zest for life between the experimental and control groups (p&lt;0.01).</p> <p><strong>Conclusion:</strong> Therefore, it can be concluded that Mindfulness-Based Cognitive Therapy has an effect on psychological flexibility and zest for life in adolescents.</p> </td> </tr> </tbody> </table> https://journals.kmanpub.com/index.php/jayps/article/download/4147/7149