title: Self-, parent-report and interview measures of obsessive-compulsive disorder in children and adolescents.
abstract: Self-report measures of obsessive-compulsive disorder (OCD) in children and adolescents are needed for practical evaluation of severity and treatment response. We compared the self- and parent-report Obsessional Compulsive Inventory Revised (CHOCI-R) to the interview-based Child Yale-Brown Obsessive-Compulsive Scale (CY-BOCS) in a clinical sample of 285 children and adolescents with OCD. Classical test theory and item-response theory were applied to compare the instruments. The self- and parent-report CHOCI-R had good internal consistency and were strongly related to each other. The self- and parent-report CHOCI-R severity scores correlated with the CY-BOCS (Pearson's r 0.55 and 0.45 respectively). The CY-BOCS discriminated better at the severe end of the spectrum. The CHOCI-R provided better discrimination in the mild to moderate range. The time-efficient self- and parent-report alternatives will enable routine measurement of OCD severity in clinical practice. Estimates of equivalent summed scores are provided to facilitate comparison.
authors.affiliation: King's College London, Institute of Psychiatry, London, UK. r.uher@iop.kcl.ac.uk
authors.forename: Rudolf
authors.initials: R
authors.lastname: Uher
authors.forename: Isobel
authors.initials: I
authors.lastname: Heyman
authors.forename: Cynthia M
authors.initials: CM
authors.lastname: Turner
authors.forename: Roz
authors.initials: R
authors.lastname: Shafran
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / 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; D011795:Surveys and Questionnaires