Korean Self-Report Version of the Yale-Brown Obsessive-Compulsive Scale: Factor Structure, Reliability, and Validity.
- Author:
Soon Ho SEOL
1
;
Jun Soo KWON
;
Min Sup SHIN
Author Information
1. Department of Psychiatry & Behavioral Science, Seoul National University College of Medicine, Seoul, Republic of Korea. shinms@snu.ac.kr
- Publication Type:Original Article
- Keywords:
Obsessive-compulsive disorder;
Yale-Brown Obsessive-Compulsive Scale;
Self-report version;
Factor structure;
Reliability;
Validity
- MeSH:
Depression;
Humans;
Obsessive Behavior;
Obsessive-Compulsive Disorder;
Psychometrics
- From:Psychiatry Investigation
2013;10(1):17-25
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVE: Although several self-report versions of the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) have been developed and used widely, few psychometric studies have established the construct validity of this measure. Therefore, we developed Korean self-report version of the Y-BOCS and evaluated its factor structure, reliability, and validity. METHODS: A non-clinical student sample (n=206) and a clinical OCD sample (n=199) completed the Korean self-report version and other measures of obsessive-compulsive disorder (OCD), depression, and anxiety. RESULTS: Consistent with the originally proposed structure, confirmatory factor analyses supported a factor structure comprised of Obsessions and Compulsions factors in the Korean self-report version. Two subscale scores and the total score of the Korean self-report version showed good internal consistency and convergent validity, but relatively poor discriminant validity. Applying a cutoff score of 16, 84% of OCD patients and 93% of the non-clinical sample were classified correctly. CONCLUSION: Korean self-report version of the Y-BOCS is a psychometrically sound and valid measure for assessing OCD symptoms as compared with the clinician-administered version. The originally proposed division of OCD severity into obsessions and compulsions appears accurate in the Korean self-report version. The cutoff score for the Korean self-report version needs adjustment based on further researches.
