KMAN Publication Inc. (KMANPUB) Applied Family Therapy Journal (AFTJ) 3041-8798 In Press 2026 07 01 Comparison of the Effectiveness of Acceptance and Commitment Therapy and Choice Theory-Based Therapy on Post-Traumatic Growth in Divorced Women with Divorce Grief Comparison of the Effectiveness of Acceptance and Commitment Therapy and Choice Theory-Based Therapy on Post-Traumatic Growth in Divorced Women with Divorce Grief 1 12 EN Journal Article 2025 12 23 <p><strong>Objective:</strong> The objective of this study was to compare the effectiveness of Acceptance and Commitment Therapy (ACT) and Choice Theory-Based Therapy (CTBT) on post-traumatic growth in divorced women experiencing divorce grief.</p> <p><strong>Methods and Materials:</strong> This research utilized a quasi-experimental, pre-test-post-test design with a control group and a two-month follow-up period. The statistical population consisted of divorced women experiencing divorce grief. A sample of participants was selected through purposive sampling and randomly assigned to three equal groups: ACT ( ), CTBT ( ), and a control group ( ). The experimental groups participated in weekly, two-hour intervention sessions based on their respective protocols, while the control group received no intervention. The primary data collection tool was the Post-Traumatic Growth Inventory (PTGI). Data analysis was conducted using SPSS software, employing descriptive statistics, repeated measures ANOVA, and Bonferroni post-hoc tests.</p> <p><strong>Findings:</strong> The results demonstrated a significant main effect for Time ( , ) regarding total post-traumatic growth. However, the main effect for Group ( ) and the Time Group interaction effect ( ) were not statistically significant for the total score. Bonferroni post-hoc analyses indicated no significant differences between the ACT and CTBT groups concerning total PTG at the post-test ( ) or the follow-up ( ) stages, though both were significantly higher than the control group. The only significant difference between the two active interventions emerged in the Spiritual Change sub-component at the follow-up stage, where the ACT group ( ) scored significantly higher than the CTBT group ( , ).</p> <p><strong>Conclusion:</strong> Both Acceptance and Commitment Therapy and Choice Theory-Based Therapy are highly and equally effective interventions for promoting overall post-traumatic growth in divorced women dealing with divorce grief. While both can be confidently utilized in clinical settings, ACT may offer a specific advantage in facilitating sustained spiritual change over time.</p> https://journals.kmanpub.com/index.php/aftj/article/download/5174/11296