en روان شناسی تربیتی Educational Psychology پژوهشي Original <div style="text-align: justify;"><span style="line-height:2;"><span style="color:#3300ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><b>Objective</b>: Extramarital relationships have witnessed an upward trend in recent years, constituting a significant factor contributing to familial disintegration, divorce, and, ultimately, a deterioration in societal well-being. Consequently, the current investigation was undertaken with the objective of evaluating the efficacy of paradox therapy in alleviating post-traumatic stress disorder symptoms among women adversely impacted by extramarital relationships.<br> <b>Methods</b>: The methodological framework of the present study was semi-experimental, employing a pre-test-post-test design alongside a control group, supplemented by a follow-up phase spanning two months. The research population encompassed all women who had experienced the consequences of their husbands&#39; extramarital affairs and who sought psychological services at various psychology and counseling clinics located in Tehran. The sample for this investigation comprised 30 individuals who expressed a willingness to engage in the study and were selected through convenience sampling; however, during the course of the research, 3 participants withdrew from each group. The instrument utilized for data collection was the PTSD Checklist for DSM-5 (PCL-5), with data analysis employing analysis of variance with repeated measures.<br> <b>Results</b>: The findings indicated that paradox therapy exerted a statistically significant influence on the reduction of post-traumatic stress disorder symptoms in women affected by extramarital relationships (p<0.05).<br> <b>Conclusions</b>: Therefore, it is posited that paradox therapy may serve as a viable intervention in addressing psychological trauma and mitigating the symptoms of post-traumatic stress disorder resultant from extramarital relationships.</span></span></span></span></div> Paradox therapy, Post-traumatic stress disorder, Extramarital relationship, Woman 159 172 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-987-1&slc_lang=en&sid=1 Masoumeh Bekhnoodeh bekhnoodeh.m@gmail.com 100319475328460010716 100319475328460010716 No Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran Nahid Havasi havassi.n2020@gmail.com 100319475328460010717 100319475328460010717 Yes Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran Mohammad Ali Besharat Besharat@gmail.com 100319475328460010718 100319475328460010718 No Department of Psychology and Educational Sciences, University of Tehran, Tehran, Iran Mohmmad Javad Ahmadizadeh Ahmadizadeh@gmail.com 100319475328460010719 100319475328460010719 No Behavioral Sciences Research Center, Lifestyle Research Institute, Baqiyatollah University of Medical Sciences, Tehran, Iran. Marjan Hossein-Zadeh-Taghvaie Taghvaie@gmail.com 100319475328460010720 100319475328460010720 No Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran