Monirul Islam
Obsessive-Compulsive Disorder (OCD) is the 4th most prevalent psychiatric disorder and 10th most disabling of all medical diseases. The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) is considered as gold standard tool which is widely used to assess the severity and the treatment response of OCD. Aim of this study was to adapt and evaluate psychometric properties of Y-BOCS Bangla. The adaptation was done as per Beaton et al., 2000 criteria. A total of 48 untreated newly diagnosed OCD patients were enrolled. Content validity, face validity, and factor analysis were considered for the assessment of validity. Reliability was assessed considering internal consistency, inter-rater reliability, and test-retest reliability. The Item-level Content Validity Indexes (I-CVIs) were 1 except for item 10 and the Scale-level Content Validity Index (S-CVI) was 0.97. In two factor model, no item had salient loading on more than one factor and there were no items that failed to load on either factor. Communalities were ranged from 0.36 to 0.85. Cronbach’s alpha value for Y-BOCS Bangla total, obsessions subscale and compulsions subscale were 0.76, 0.78, and 0.79 respectively. The range of Intraclass Correlation Coefficient (ICC) for inter-rater reliability was from 0.90 to 0.99 and Cohen’s Kappa was 0.904. ICCs for test-retest reliability were ranged from 0.76 to 0.99. All values represented that the Y-BOCS Bangla was a valid and reliable scale.
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