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A Comparative Study of the Effectiveness of Mentalization-Based Therapy (MBT) and Acceptance and Commitment Therapy (ACT) on Enhancing Resilience and Cognitive Flexibility in Adolescents with a History of Suicide Attempt in Shiraz
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Mohammad Ranjbar1   , Ali mohammad Rezai2 , Akbar Rezai Fard3 |
1- Department of Psychology, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran
2- Department of Psychology, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran , dr.rezaie@iau.ac.ir
3- Department of Psychology Education and Counseling, Farhangian University, P.O. Box 14665-889, Tehran, Iran |
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Abstract: (7 Views) |
Introduction: Resilience and cognitive flexibility in adolescents with a history of suicide attempts are considered important challenges in mental health. The present study aimed to compare the effectiveness of Mentalization-Based Therapy (MBT) and Acceptance and Commitment Therapy (ACT) in enhancing resilience and cognitive flexibility among adolescents with a history of suicide attempts in Shiraz.
Methods: The present study employed a randomized controlled trial with a pretest–posttest, control-group, and two-month follow-up design. The sample consisted of 60 adolescents aged 13–18 years with a history of suicide attempts, who were randomly assigned to three groups of 20 participants each: two experimental groups and one control group. Participants completed the Connor and Davidson (2003) Resilience Scale and the Dennis and Vander Wal (2010) Cognitive Flexibility Inventory at three assessment points. The experimental groups received either Mentalization-Based Therapy (MBT) or Acceptance and Commitment Therapy (ACT) over eight 2-hour sessions, whereas the control group was placed on a waiting list. Data were analyzed using repeated-measures analysis of variance (ANOVA) with SPSS software.
Results: The findings indicated that both Mentalization-Based Therapy and Acceptance and Commitment Therapy were effective in increasing the dimensions of resilience and cognitive flexibility among adolescents with a history of suicide attempts (p < 0.05), and there was no statistically significant difference between the effectiveness of the two treatments (p > 0.05).
Conclusion: Both Mentalization-Based Therapy and Acceptance and Commitment Therapy are effective and applicable approaches for improving psychological adjustment in high-risk adolescents and may be used as equivalent therapeutic interventions.
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| Keywords: Mentalization-Based Therapy (MBT), Acceptance and Commitment Therapy (ACT), Psychological Resilience, Cognitive Flexibility, Suicidal Behavior |
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Type of Article: Research Article |
Subject:
Forensic Psychiatry
Received: 2026/07/3 | Revised: 2026/08/11 | Accepted: 2026/08/11
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