Purpose: The aim of this study was the effectiveness of emotion regulation therapy on emotional-behavioral symptoms, sleep problems and problem solving in 14-16 year old girls.
Materials and Methods: This was a quasi-experimental study with a pretest-posttest design with a control and follow-up group of 3 months. The statistical population of this study included all 14 to 16 year old female students studying in high school in Kermanshah in 2021-2022. By available sampling method, 60 female students were selected and randomly assigned to three equal groups of 20 people. Data were collected using the Ability and Problems Questionnaire (Goodman, 1997), the Problem Solving Questionnaire (Hepner and Patterson, 1988) and the Sleep Assessment Questionnaire (Boyce et al., 1989). Data were analyzed using SPSS software version 25 using descriptive statistics, statistical assumptions and analysis of variance with repeated measures and Bonferroni test.
Findings: The results showed that emotional-behavioral symptoms and their dimensions in the experimental groups significantly improved compared to the control group and this improvement remained stable in the follow-up stage.
Conclusion: The results showed that acceptance and commitment therapy and emotion regulation treatment compared to the control group were significantly effective in improving problem solving skills and its dimensions.