en روان شناسی تکاملی Evolutionary Psychology پژوهشي Original <div style="text-align: justify;"><span style="color:#3366ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:2;"><b>Objective</b>: The present study aimed to examine the effectiveness of self-regulation couple therapy on self-differentiation, identity styles, and family problem-solving skills among couples applying for divorce in District 7 of Mashhad city in 2023.<br> <b>Methods</b>: This research employed a quasi-experimental design with a pretest&ndash;posttest control group. The statistical population included all couples applying for divorce who referred to counseling centers in District 7 of Mashhad during the first six months of 1401. The sample consisted of 16 couples selected through voluntary purposive sampling and randomly assigned to an experimental group (16 individuals) and a control group (16 individuals). Data were collected using the Berzonsky Identity Style Inventory (Bennion & Adams, 1986), the Family Problem-Solving Questionnaire (FPS, 2010), and the Differentiation of Self Inventory (Skowron & Friedlander, 2003). Data were analyzed using multivariate and univariate analysis of covariance (MANCOVA and ANCOVA).<br> <b>Results</b>: The findings indicated that self-regulation couple therapy had a significant effect on self-differentiation, identity styles, and family problem-solving skills among couples applying for divorce.<br> <b><span calibri="">Conclusions</span></b><span calibri="">: Given that self-regulation couple therapy was found to be effective in improving self-differentiation, identity styles, and family problem-solving skills, counseling centers can benefit from employing skilled counselors who are proficient in non-pharmacological educational and therapeutic approaches to support couples seeking divorce and to promote family stability and emotional well-being.</span></span></span></span></span></div> Self-regulation couple therapy, Self-differentiation, Identity styles, Family problem-solving skills 345 358 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-1124-1&slc_lang=en&sid=1 Farzaneh Azimi Maanaviyan azimif2010@gmail.com 100319475328460011878 100319475328460011878 No Department of Family Counseling, Quchan Branch, Islamic Azad University, Quchan, Iran Hossein Akbari Amreghan akbariah@gmail.com 100319475328460011879 100319475328460011879 Yes Department of Psychology, Quchan Branch, Islamic Azad University, Quchan, Iran