• Eric A Storch, Joseph F McGuire, Monica S Wu, Rebecca Hamblin, Elizabeth McIngvale, Sandra L Cepeda, Sophie C Schneider, Katrina A Rufino, Steven A Rasmussen, Lawrence H Price, and Wayne K Goodman.
• Baylor College of Medicine, Houston, TX. Electronic address: eric.storch@bcm.edu.
• J Am Acad Child Adolesc Psychiatry. 2019 Jan 1; 58 (1): 92-98.

ObjectiveTo develop and examine the psychometric properties of the Children's Yale-Brown Obsessive-Compulsive Scale Second Edition (CY-BOCS-II) in children and adolescents with obsessive-compulsive disorder (OCD).MethodYouth with OCD (N = 102; age range 7-17 years), who were seeking treatment from 1 of 2 specialty OCD treatment centers, participated in the study. The CY-BOCS-II was administered at an initial assessment, and measures of OCD symptom severity, anxiety and depressive symptoms, behavioral and emotional problems, and global functioning were administered. Inter-rater and test-retest reliabilities were assessed on a subsample of participants (n = 50 and n = 31, respectively) approximately 1 week after intial assessment.ResultsThe CY-BOCS-II demonstrated moderate-to-strong internal consistency (α = 0.75-0.88) and excellent inter-rater (intraclass correlation coefficient = 0.86-0.92) and test-retest (intraclass correlation coefficient = 0.95-0.98) reliabilities across all scales. Construct validity was supported by strong correlations with clinician-rated measures of OCD symptom severity and moderate correlations with measures of anxiety symptoms. Exploratory factor analysis showed a 2-factor structure, which was generally inconsistent with its adult counterpart, the Yale-Brown Obsessive-Compulsive Scale Second Edition.ConclusionInitial findings support the CY-BOCS-II as a reliable and valid measure of obsessive-compulsive symptoms in youth.Copyright © 2018 American Academy of Child and Adolescent Psychiatry. Published by Elsevier Inc. All rights reserved.

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