en روان شناسی تکاملی Evolutionary Psychology پژوهشي Original <div style="text-align: justify;"><span style="color:#3300ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:2;"><b>Objective</b>: Emotional divorce constitutes a specific form of separation wherein couples cohabit within the same domicile yet lack affection and merely tolerate each other. Consequently, the present investigation was undertaken with the objective of assessing the efficacy of an acceptance and commitment therapy intervention on the levels of marital dissatisfaction and sexual performance among couples experiencing emotional divorce. <b>Methods</b>: The methodological framework employed was semi-experimental, incorporating a pre-test and post-test design alongside a control group. The statistical population encompassed all couples who sought assistance from counseling and psychological service centers in Baharestan district during 2023; from this population, 30 couples were randomly selected and assigned to either the experimental or control group through a simple randomization process. The acceptance and commitment therapy sessions were conducted for the experimental group whereas the control group did not receive any therapeutic intervention. Data analysis was performed utilizing univariate analysis of covariance.<br> <b>Results</b>: The findings indicated that acceptance and commitment therapy significantly decreased levels of marital dissatisfaction while simultaneously enhancing sexual performance. The effect sizes of 0.45 for marital dissatisfaction and 0.67 for sexual performance further substantiate the significance of these differences within the population. <b>Conclusions</b>: In light of these findings, therapists and counselors are encouraged to integrate this therapeutic approach into their practice to ameliorate sexual performance and mitigate marital dissatisfaction among couples experiencing emotional divorce.</span></span></span></span></div> Acceptance and commitment therapy, Marital dissatisfaction, Sexual performance, Emotional divorce 369 380 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-905-1&slc_lang=en&sid=1 Rozhain Roghani rozhan.roghaniii75@gmail.com 100319475328460010510 100319475328460010510 Yes MA in General Psychology, Islamic Azad University, Quds City Branch, Tehran, Iran Saharnaz Jafari jafarisaharnaz89@gmail.com 100319475328460010511 100319475328460010511 No MA in Clinical Psychology, Mesioor University of India, India Faezeh Sadat Shakibania shakibaf@gmail.com 100319475328460010512 100319475328460010512 No MA in Clinical Psychology, Hakim Nasser Khosrow Saveh Non-Profit Institute of Higher Education, Saveh, Iran Behnaz Hatami Behnazhatami918@gmail.com 100319475328460010513 100319475328460010513 No MA in family counseling, Allameh Tabatabai University, Tehran, Iran Elnaz Hajiyousefi eli_1361hf@yahoo.com 100319475328460010514 100319475328460010514 No Ph.D. in clinical psychology, Islamic Azad University, Tehran, Iran