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  • Title: Independent validation of the dimensional Yale-Brown obsessive-compulsive scale (DY-BOCS).
    Author: Pertusa A, Fernández de la Cruz L, Alonso P, Menchón JM, Mataix-Cols D.
    Journal: Eur Psychiatry; 2012 Nov; 27(8):598-604. PubMed ID: 21570815.
    Abstract:
    INTRODUCTION: Obsessive-compulsive disorder (OCD) is a clinically heterogeneous condition characterized by a few consistent, temporally stable symptom dimensions. The dimensional Yale-Brown obsessive-compulsive scale (DY-BOCS) is a recently developed instrument that allows patient and clinician ratings of dimension-specific symptom severity, as well as estimates of global symptom severity in patients with OCD. METHODS: We examined the psychometric properties of the DY-BOCS in a sample of 128 European adult patients with OCD. RESULTS: The results of the psychometric analyses were overall excellent. The internal consistency across the domains of time, distress and interference for each dimension was high. The subscales of the DY-BOCS were largely independent from one another. The convergent and discriminant validity of the DY-BOCS subscales were adequate. The Global Severity and Interference scales were largely intercorrelated, suggesting that they may be redundant. The level of agreement between self-report and expert ratings was adequate although somewhat lower than in the original validation study. CONCLUSION: The results of the present study confirm the excellent psychometric properties of the DY-BOCS reported in the original validation study.
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