Parichehr Sadr Nafisi - Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
Zahra Eftekhar Saadi - Corresponding author: Zahra Eftekhar Saadi,PhD; Faculty of Psycology and Educational Sciences: Farhang Shahr, Ahvaz, Khuzestan Province. Department of Psychology, Islamic Azad University, Ahvaz Branch, Postal Code: ۳۷۳۳۳--۶۱۳۴۹, Ahvaz, Iran.
Alireza Heidari - Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.

This study aimed to compare the effectiveness of compassion-focused intervention and rational-emotional behavior therapy among women on weight self-efficacy and self-criticism on an Overweight Diet. This study was a quasi-experimental design using a pre-test and post-test with a control group. The statistical population consisted of all women on an overweight diet that was referred to therapy clinics in Tehran from December ۲۰۱۹ to April ۲۰۲۰. Through a convenience sampling method, ۴۵ overweight females were selected based on inclusion criteria and randomly assigned to a control and two experimental groups. Both experimental groups۱(n=۱۵), and ۲ (n=۱۵) were treated with compassion-focused therapy and rational-emotional behavior therapy for ten and eight weekly ۹۰-minute sessions, but the control group (n=۱۵) did not receive any treatment. At the start of the study, all participants completed using the Weight Efficacy Lifestyle Questionnaire (WEL) and the Levels of Self-criticism (LOSC) Scale. Multivariate analysis of covariance (MANCOVA) and One-Way Analysis of Covariance (ANCOVA) were applied by the SPSS-۲۵ program (P < ۰.۰۵). Furthermore, there was a significant difference between post-test scores of compassion-focused intervention (CFT) and rational-emotional behavioral therapy (REBT) groups in terms of self-efficacy and self-criticism. The people in the REBT intervention group had better self-efficacy and self-criticism scores (p = ۰.۰۰۱). The findings showed that compassion-focused intervention (CFT) and rational-emotional behavioral therapy interventions could help with overweightness. Therefore, both intervention programs are recommended for improving weight self-efficacy and decreasing self-criticism among women on an overweight diet.

Compassion, Rational, weight, self-efficacy, Self-criticism