2Introduction: Methadone users face psychological challenges that require training to support their treatment. Objective: This study aimed to compare the effectiveness of mindfulness group training and cognitive-behavioral therapy (CBT) groups in enhancing resilience and self-efficacy among individuals undergoing methadone treatment. Material and Methods: This study used a quasi-experimental design with pre-test, post-test,  control groups, and a follow-up phase. The research population included 2, 500 individuals under the welfare organization’s supervision, receiving methadone treatment at addiction treatment centers in two Tehran cities in the second half of 2018. A total of 45 participants were chosen using convenience sampling, then randomly assigned to mindfulness, CBT, and control groups (15 people per group). Mindfulness training comprised eight 60-minute sessions, while CBT involved weekly 90-minute sessions for the experimental groups, the control group received no intervention. Participants completed the General Self-Efficacy Scale (Scherer & Maddox) and the Connor-Davidson Resilience Scale at pre-test, post-test, and one month post-treatment.  Data were analyzed using two-way repeated measures ANOVA and Bonferroni post hoc tests,  with a significance level of 0. 05. Results: The findings revealed that, post-intervention, the average resilience score in the mindfulness training group rose to 100. 85±8. 1, with self-efficacy also increasing to 66. 70±5. 20.  In contrast, the CBT group showed an increase in resilience to 85. 95±13. 77 and in self-efficacy to 57. 85±7. 50 (P<0. 001). Compared to CBT, mindfulness group training demonstrated a more enduring effect over a one-month follow-up period (P<0. 005). Post-hoc tests confirmed that both interventions enhanced resilience and self-efficacy, with mindfulness training having a significantly greater impact (P<0. 001). Conclusion: The results confirmed that group mindfulness training and cognitive-behavioral group therapy positively impact the resilience and self-efficacy of individuals undergoing methadone treatment. It is recommended that counselors and therapists use these two therapeutic approaches when working with individuals in methadone treatment.

Background: Due to the lack of a comparative study on the effectiveness of cognitive-behavioral approaches on Obsessivecompulsive disorder (OCD), this study aimed to compare the effectiveness of CBT, ACT, MCT, and MICBT on the symptoms of OCD patients. Methods: The research design was experimental, with pre-test, posttest, follow-up, and a control group. The research population comprised patients with OCD who are referred to Shiraz (Iran). Counseling centers in the first quarter of 2017 with a definitive diagnosis of OCD. Participants were elected and had been assigned to five groups of twenty individuals by random. The subjects have been evaluated before and after the intervention by the Yale-Brown questionnaire. Data are analyzed using repeated measure analysis of Anova via SPSS 21. Results: The findings showed that all four types of intervention, i. e., MiCBT, MCT, ACT, and CBT, were effective in improving short-term OCD symptoms. Also, there was no significant difference in the longterm (follow-up/one month) between the MCT and CBT approaches,while ACT and MiCBT have maintained their therapeutic effect in the follow-up. Conclusions: OCD can be treated with all the mentioned therapies in short term,but, only ACT and MiCBT can be helpful in the long term.