Validation of the Italian version of the Yale-Brown Obsessive Compulsive Scale-Second Edition (Y-BOCS-II) in a clinical sample

Melli, Gabriele, Avallone, Emiliano, Moulding, Richard, Pinto, Antonio, Micheli, Elena and Carraresi, Claudia 2015, Validation of the Italian version of the Yale-Brown Obsessive Compulsive Scale-Second Edition (Y-BOCS-II) in a clinical sample, Comprehensive psychiatry, vol. 60, pp. 86-92, doi: 10.1016/j.comppsych.2015.03.005.

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Title Validation of the Italian version of the Yale-Brown Obsessive Compulsive Scale-Second Edition (Y-BOCS-II) in a clinical sample
Author(s) Melli, Gabriele
Avallone, Emiliano
Moulding, RichardORCID iD for Moulding, Richard
Pinto, Antonio
Micheli, Elena
Carraresi, Claudia
Journal name Comprehensive psychiatry
Volume number 60
Start page 86
End page 92
Total pages 7
Publisher WB Saunders
Place of publication New York, N. Y.
Publication date 2015
ISSN 1532-8384
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Summary OBJECTIVE: The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) is the most widely accepted measure of obsessive-compulsive disorder (OCD) symptom severity. Recently, the scale has been revised into a second edition (Y-BOCS-II) in order to improve its measurement properties. The present study aimed to evaluate the psychometric properties of the Italian version of the Y-BOCS-II Severity Scale (SS) in a large clinical sample. METHOD: The original version of the Y-BOCS-II was translated into Italian, which involved forward and back-translation procedures. The Italian Y-BOCS-II-SS was administered to one hundred twenty-five treatment-seeking adults with OCD, together with the original Y-BOCS-SS and a battery of self-report measures assessing OCD symptom severity and depressive and anxious symptomology. The factor structure, internal consistency, temporal stability, and construct validity were investigated on the whole sample, while inter-rater and test-retest reliability were assessed on a subsample of participants. RESULTS: Factor analyses revealed a two-factor structure different from those of the original scale, comprising (1) symptom severity; and (2) interference from symptoms. Internal consistency, test-retest reliability over a 2-week period and inter-rater reliability were satisfactory. The Y-BOCS-II-SS also showed excellent construct validity (and better than the Y-BOCS-SS), with good convergent and discriminant validity when assessed against other OCD symptom measures and measures of depression, anxiety and worry. CONCLUSIONS: These findings suggest that the Italian version of the Y-BOCS-II-SS retains the adequate psychometric properties of the original and that it can be confidently used as an assessment tool of OCD symptoms in both clinical and research settings.
Language eng
DOI 10.1016/j.comppsych.2015.03.005
Field of Research 111799 Public Health and Health Services not elsewhere classified
Socio Economic Objective 920299 Health and Support Services not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, WB Saunders
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Document type: Journal Article
Collection: School of Psychology
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