title: Functional impairment in childhood OCD: development and psychometrics properties of the Child Obsessive-Compulsive Impact Scale-Revised (COIS-R).
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.
authors: UCLA Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA 90024, USA. jpiacentini@mednet.ucla.edu
authors: John
authors: J
authors: Piacentini
authors: Tara S
authors: TS
authors: Peris
authors: R Lindsey
authors: RL
authors: Bergman
authors: Susanna
authors: S
authors: Chang
authors: Margaret
authors: M
authors: Jaffer
mesh_terms: D000203:Activities of Daily Living / Q000523:psychology; D000293:Adolescent; D002648:Child; D002652:Child Behavior / Q000523:psychology; D002653:Child Behavior Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D002675:Child, Preschool; D015897:Comorbidity; D039721:Diagnostic and Statistical Manual of Mental Disorders; D004522:Educational Status; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000453:epidemiology / Q000523:psychology; D010290:Parents / Q000523:psychology; D010555:Personality Inventory / Q000706:statistics & numerical data; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D044465:White People / Q000523:psychology