en رويكرد شناختي رفتاري Cognitive behavioral پژوهشي Original Research Article <p style="text-align: justify"><b>Objective:</b> This research aimed to study the relationship between scrupulosity and obsessivecompulsive symptoms as well as obsessive-compulsive-related cognitive styles (obsessive beliefs and thought-action fusion).&nbsp;</p> <div style="text-align: justify"><b>Methods: </b>This was a correlational study. The study population included all individuals who referred to counseling centers of Tehran from August to December 2010 and diagnosed with obsessive-compulsive disorder, and also all Persian speakers with OCD who were active in internet from August to November 2012. A total of 30 individuals with obsessive-compulsive disorder (mostly Iranian Muslims) were recruited from different psychological counseling centers in Tehran. In addition, 50 individuals with OCD (obsessive-compulsive disorder) were recruited via internet social networks. For screening, we used Obsessive-Compulsive Inventory-Revised (OCI-R). Convenience method was used for the sampling. In order to collect data, Penn Inventory of Scrupulosity (PIOS), Thought-Action Fusion Scale (TAF), Depression Anxiety Stress Scale (DASS-21), Obsessive-Compulsive Inventory-Revised (OCI-R), and Obsessive Beliefs Questionnaire (OBQ) were administered. Pearson correlation coefficient and regression analysis were used to analyze the data. SPSS version 18 was used for data analysis.&nbsp;</div> <div style="text-align: justify"><b>Results: </b>Results showed that there were significant relationships between scrupulosity and obsessive-compulsive symptoms total score (r=0.275, P<0.05) also scrupulosity and obsessive beliefs (r=0.558, P<0.01) and scrupulosity and thought-action fusion (r=0.506, P<0.01). Results also revealed that the variations in scrupulosity scores could be best predicted by &lsquo;anxiety&rsquo; and &lsquo;Importance and Control of Thoughts.&rsquo; Scrupulosity is a subtype of OCD and is obsessive in nature.&nbsp;</div> <div style="text-align: justify"><b>Conclusion: </b>As explained by cognitive-behavioral theories of religious OCD, scrupulosity is closely related to the &lsquo;Importance of Thoughts and Controlling Thoughts,&rsquo; as well as moral and probability &lsquo;Thought-action Fusion.&rsquo; The results were in accordance with the findings of comparable studies on Christian samples. Results were explained according to Islamic views, and the implications for research and practice were discussed.</div> Scrupulosity, Obsessivecompulsive symptoms, OCDcognitive styles, Obsessive beliefs, Thought-action fusion 47 60 http://jpcp.uswr.ac.ir/browse.php?a_code=A-10-158-1&slc_lang=en&sid=1 Sara Kaviani openheart.ka@gmail.com Yes Department of Psychology and Educational Sciences, Faculty of Clinical and General Psychology, Allameh Tabataba'i University, Tehran, Iran. Hossein Eskandari No Organization Soghra Ebrahimi Ghavam No Organization