Maryam Zadbar - Ph.D student in Psychology, Department of Psychology and Educational Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Gholamreza Manshaei - Associate Professor, Department of Psychology and Educational Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Asghar Aghaei Jeshvaghani - Professor, Department of Psychology and Educational Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

Objective: Obsessive-compulsive disorder affects the cognitive, mental and emotional order of sufferers and leads to a decrease in their performance. According to this this study was aimed at comparing the effectiveness of virtual reality exposure therapy with cognitive-behavioral therapy on obsessive- compulsive disorder symptoms amongst people with the disorder.Materials and Methods: A quasi-experimental method was employed followed by a pretest-posttest and a two-month follow-up. The population consisted of all people referred to Nik Mehr Counseling and Psychological Services in Tehran in ۲۰۲۰ and ۲۰۲۱. From among them, ۴۵ were selected through convenience sampling method, randomly put in experimental and control groups and received Maudsley's Obsessive-Compulsive Questionnaire. The follow-up was then implemented on subjects by receiving virtual reality exposure for ۱۲ sessions (۲ eight-minute sessions per week for ۶ weeks) and cognitive-behavioral therapy for ۱۲ sessions (۲ forty-five-minute sessions per week for ۶ weeks. The control group did not receive any intervention. Results were analyzed through ANOVA and Bonferroni Post-hoc Test with SPSS-۲۳.Findings: The results showed that both therapies appeared effective (F=۱۹۲; Eta=۰.۶۷; P<۰۰۰۱) on people with the disorder as they reduced obsession syndromes. Also, the follow-up test indicated that there is no significant difference between the effectiveness of these two therapies on subjects with obsessive-compulsive disorder (P<۰.۰۵).Conclusion: According to the results, since there is no difference in the effectiveness of virtual reality exposure therapy and cognitive-behavioral therapy, both can be applied to reduce obsession syndromes amongst people with the disorder.Objective: Obsessive-compulsive disorder affects the cognitive, mental and emotional order of sufferers and leads to a decrease in their performance. According to this this study was aimed at comparing the effectiveness of virtual reality exposure therapy with cognitive-behavioral therapy on obsessive- compulsive disorder symptoms amongst people with the disorder. Materials and Methods: A quasi-experimental method was employed followed by a pretest-posttest and a two-month follow-up. The population consisted of all people referred to Nik Mehr Counseling and Psychological Services in Tehran in ۲۰۲۰ and ۲۰۲۱. From among them, ۴۵ were selected through convenience sampling method, randomly put in experimental and control groups and received Maudsley's Obsessive-Compulsive Questionnaire. The follow-up was then implemented on subjects by receiving virtual reality exposure for ۱۲ sessions (۲ eight-minute sessions per week for ۶ weeks) and cognitive-behavioral therapy for ۱۲ sessions (۲ forty-five-minute sessions per week for ۶ weeks. The control group did not receive any intervention. Results were analyzed through ANOVA and Bonferroni Post-hoc Test with SPSS-۲۳. Findings: The results showed that both therapies appeared effective (F=۱۹۲; Eta=۰.۶۷; P<۰۰۰۱) on people with the disorder as they reduced obsession syndromes. Also, the follow-up test indicated that there is no significant difference between the effectiveness of these two therapies on subjects with obsessive-compulsive disorder (P<۰.۰۵). Conclusion: According to the results, since there is no difference in the effectiveness of virtual reality exposure therapy and cognitive-behavioral therapy, both can be applied to reduce obsession syndromes amongst people with the disorder.