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Independent validation of the Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS)

Published online by Cambridge University Press:  13 May 2011

A. Pertusa ,
de la Cruz L. Fernández ,
P. Alonso ,
J.M. Menchón  and
D. Mataix-Cols
A. Pertusa*
Affiliation:
Departments of Psychology and Psychosis Studies, King's College London, Institute of Psychiatry, PO 69, De Crespigny Park Road, London SE5 8AF, UK Obsessive-Compulsive Disorder Clinical and Research Unit, Department of Psychiatry, Bellvitge Hospital, Feixa Llarga s/n, 08907 Hospitalet de Llobregat, Barcelona, Spain
de la Cruz L. Fernández
Affiliation:
Departments of Psychology and Psychosis Studies, King's College London, Institute of Psychiatry, PO 69, De Crespigny Park Road, London SE5 8AF, UK
P. Alonso
Affiliation:
Obsessive-Compulsive Disorder Clinical and Research Unit, Department of Psychiatry, Bellvitge Hospital, Feixa Llarga s/n, 08907 Hospitalet de Llobregat, Barcelona, Spain Centro de Investigación en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Spain Department of Clinical Sciences, Bellvitge Campus, University of Barcelona, Barcelona, Spain
J.M. Menchón
Affiliation:
Obsessive-Compulsive Disorder Clinical and Research Unit, Department of Psychiatry, Bellvitge Hospital, Feixa Llarga s/n, 08907 Hospitalet de Llobregat, Barcelona, Spain Centro de Investigación en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Spain Department of Clinical Sciences, Bellvitge Campus, University of Barcelona, Barcelona, Spain
D. Mataix-Cols
Affiliation:
Departments of Psychology and Psychosis Studies, King's College London, Institute of Psychiatry, PO 69, De Crespigny Park Road, London SE5 8AF, UK
*
*Corresponding author. Tel.: +44 208 123 4941; fax: +44 207 848 0379. E-mail address:alberto.pertusa@kcl.ac.uk (A. Pertusa).
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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.

Keywords

Obsessive-compulsive disorderSymptom dimensionsScaleHeterogeneity
Type
Original articles
Information
European Psychiatry , Volume 27 , Issue 8 , November 2012 , pp. 598 - 604
Copyright
Copyright © European Psychiatric Association 2012

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