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KMID : 1143820230190010010
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Anxiety and Mood
2023 Volume.19 No. 1 p.10 ~ p.18
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Psychometric Properties of the Korean Version of 12-Item Obsessive-Compulsive Inventory in Accordance With Obsessive-Compulsive Symptom Dimensions in Individuals With Obsessive-Compulsive Disorder
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Seo Ho-Seok
Choi Mi-Na
Lee Seung-Jae
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Abstract
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Objective : The 18-item Obsessive-Compulsive Inventory-Revised (OCI-R) is widely employed to assess symptoms of obsessive-compulsive disorder (OCD). However, this instrument’s factor structure does not align with contemporary dimensional models of OCD. Therefore, the objective of this study was to examine psychometric properties of the 12-item Korean OCI (OCI-12) on four obsessive-compulsive symptom dimen- sions, in patients with OCD.
Methods : A total of 157 patients with OCD and 51 healthy controls completed psychological measures, in- cluding the OCI-R, Dimensional Obsessive-Compulsive Scale (DOCS), and scales evaluating anxiety and de- pressive symptoms. Pychometric characteristics of the OCI-12 with three neutralizing and three hoarding items eliminated from the OCI-R, were analyzed.
Results : All OCI-12 items registered excellent internal consistency at 0.83. Confirmatory factor analysis revealed strong association between individual items and their proposed latent factors (i.e., subscales). Con- vergent validity was appropriate. A high correlation was particularly observed for the DOCS score (r=0.71, p<0 .001). Moreover, the OCI-12 was as sensitive as the OCI-R for determining effects of empirically support- ed treatment for OCD.
Conclusion : The OCI-12 is a 12-item measure that adheres to the prevailing 4-factor model of OCD di- mensions. Like OCI-R, it possesses good to excellent psychometric properties, including reliability, validity, and sensitivity to treatment.
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KEYWORD
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Obsessive-compulsive disorder, Assessment, Questionnaire, Dimension
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