en other Orginal research <span style="line-height:2;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="unicode-bidi:embed"><span sans-serif=""><span style="color:#2980b9;"><b><i><span new="" roman="" times="">Background:</span></i></b></span><span style="color:#000066;"> </span><span new="" roman="" times="">The rising prevalence of marital conflict and its detrimental impact on individual and family well-being underscores the urgent need for effective interventions. </span></span></span><br> <span style="unicode-bidi:embed"><span sans-serif=""><span style="color:#2980b9;"><b><i><span new="" roman="" times="">Objectives:</span></i></b></span><b> </b><span new="" roman="" times="">This study aimed to investigate the effectiveness of self-differentiation training on family process and marital intimacy in couples with marital conflict.</span></span></span><br> <span new="" roman="" times=""><span style="color:#2980b9;"><b><i>Methods:</i></b></span><span style="color:black"> A quasi-experimental pre-test, post-test, and follow-up design was utilized. The study population comprised all couples residing in Ahvaz, Iran, aged between 20 and 45, who sought divorce counseling at psychological centers in 2023. A convenience sample of 30 couples was recruited. Participants completed the Family Process Scale and the Marital Intimacy Scale at baseline, post-intervention, and a 45 day follow-up assessment. The intervention consisted of eight weekly 90 minute self-differentiation training sessions. Data were analyzed using repeated-measures analysis of variance. Post-hoc comparisons were conducted employing the LSD test.</span></span><br> <span style="unicode-bidi:embed"><span sans-serif=""><span style="color:#2980b9;"><b><i><span new="" roman="" times="">Results:</span></i></b></span><span new="" roman="" times=""> A significant increase in family process scores was observed between the pre-test and post-test assessments among couples experiencing marital conflict (p<0.001). Similarly, significant improvements in marital intimacy were found between the pre-test and both the post-test and follow-up assessments (P<0.001). These sustained effects at follow-up indicate the long-lasting impact of self-differentiation training.</span></span></span><br> <span style="unicode-bidi:embed"><span sans-serif=""><span style="color:#2980b9;"><b><i><span new="" roman="" times="">Conclusion:</span></i></b></span><span new="" roman="" times=""> Self-differentiation training significantly improved family processes and marital intimacy in couples experiencing conflict, suggesting its effectiveness in addressing the core issues underlying marital discord. Therefore, mental health professionals and family therapists should consider incorporating self-differentiation training into their practice when working with couples experiencing marital conflict, particularly those considering separation or divorce.</span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="unicode-bidi:embed"><span sans-serif="" style="font-family:Calibri,"><span style="font-size:8.0pt"><span style="font-family:"Times New Roman","serif""></span></span></span></span></span></span> Self-Differentiation, Family Process, Intimacy, Family Conflict 55 63 http://nmcjournal.zums.ac.ir/browse.php?a_code=A-10-997-1&slc_lang=en&sid=1 Seyedeh Farzaneh Jafari jafarisghrz@gmail.com 100319475328460013815 100319475328460013815 No Department of Counseling, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran Kobra Kazemian Moghaddam kkazemianmoghaddam@gmail.com 100319475328460013816 100319475328460013816 Yes Department of Psychology, Dezful Branch, Islamic Azad University, Dezful, Iran Maryam Gholamzadeh Jofreh gholamzade.m723@gmail.com 100319475328460013817 100319475328460013817 No Department of Counseling, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran