Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 7 4 2012 12 15 184 90 Maryam Rahat Department of Clinical Psychology, Shiraz University, Shiraz, Iran. Changiz Rahimi PhD Assistant Professor, Department of Clinical Psychology, Shiraz University, Shiraz, Eram Hill, Shiraz, Iran Norolah Mohamadi 2015 10 14 Objective: We examined the psychometric properties of the Arabic version of the Obsessive Compulsive Beliefs Questionnaire-44 (OBQ-44) in a sample of Kuwait University students. This questionnaire was developed by the Obsessive Compulsive Cognitions Working Group in order to assess belief domains believed to be crucial in the development of obsessive compulsive symptoms. Method: The Arabic version of the OBQ-44 was developed according to  the standard translation and back-translation methods. The Arabic versions of the OBQ-44, the Maudsley Obsessive - Compulsive Inventory (MOCI), and Beck Depression Inventory-Revised (BDI-II) were then administered on a sample of 200 Kuwait University students from the faculty of humanities chosen through random cluster sampling. Retest was administered within a 4 week time period. Results: The results of principle component factor analysis with varimax rotation indicated 6 factors which overlapped to a high degree. A 3 factor solution was chosen based on the scree plot and factor loadings which explained 36.12% of the variance. The factors were labeled as responsibility and threat estimation (RT), importance and control of thought (ICT) and perfectionism/Certainty (PC). The reliability coefficient of the three factors and the total score were assessed using three  methods: Internal consistency, Test-retest reliability and Split-half reliability. Results showed an acceptable internal consistency for the Arabic version of the OBQ-44. Regarding the validity of OBQ-44, the instrument correlated with the total score of MOCI and most of its subscales . Conclusion: These data support the reliability and validity of the OBQ-44 in a sample of Kuwait University students. https://ijps.tums.ac.ir/index.php/ijps/article/view/173 https://ijps.tums.ac.ir/index.php/ijps/article/download/173/169