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

TitleFunctional impairment in childhood OCD: development and psychometrics properties of the Child Obsessive-Compulsive Impact Scale-Revised (COIS-R).
Publication TypeJournal Article
Year of Publication2007
AuthorsPiacentini, J, Peris TS, Bergman LR, Chang S, Jaffer M
JournalJournal of clinical child and adolescent psychology : the official journal for the Society of Clinical Child and Adolescent Psychology, American Psychological Association, Division 53
Volume36
Issue4
Pagination645-53
Date Published2007 Oct-Dec
ISSN1537-4416
KeywordsActivities of Daily Living, Adolescent, Child, Child Behavior, Child Behavior Disorders, Child, Preschool, Comorbidity, Diagnostic and Statistical Manual of Mental Disorders, Educational Status, European Continental Ancestry Group, Factor Analysis, Statistical, Female, Humans, Interpersonal Relations, Male, Obsessive-Compulsive Disorder, Parents, Personality Inventory, Psychiatric Status Rating Scales, Psychometrics, Reproducibility of Results, Severity of Illness Index
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.

DOI10.1002/hbm.21441
Alternate JournalJ Clin Child Adolesc Psychol