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J Clin Child Adolesc Psychol. 2007 Oct-Dec;36(4):645-53.

Functional impairment in childhood OCD: development and psychometrics properties of the Child Obsessive-Compulsive Impact Scale-Revised (COIS-R).

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  • 1UCLA Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA 90024, USA. jpiacentini@mednet.ucla.edu

Abstract

This article documents the development, factor structure, and psychometric properties of the parent- and youth-report forms of the Child Obsessive Compulsive Impact Scale-Revised (COIS-R), a measure of obsessive-compulsive disorder (OCD)-specific functional impairment. Using a sample of 250 youth (M age = 11.7, 54% male, 80% Caucasian) diagnosed with OCD in a university hospital-based child anxiety clinic, exploratory factor analysis was employed to develop a 4-factor structure for the parent-report measure (Daily Living Skills, School, Social, Family/Activities) and a 3-factor structure for the youth-report form (School, Social, Activities). Both measures demonstrated good internal consistency, concurrent validity, and test-retest reliability. Moreover, partial correlations demonstrated significant associations between COIS-R scales and clinician global assessment of functioning scores controlling for both symptom severity and comorbid internalizing and externalizing symptomatology. These findings suggest that the COIS-R may hold utility for assessing the specific impact of OCD symptoms on youth functioning.

PMID:
18088221
[PubMed - indexed for MEDLINE]
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