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Anxiety and Anxiety Disorders

Anxiety and Anxiety Disorders

Children Yale-Brown Obsessive-Compulsive Scale (CY-BOCS)

Scahill et al., 1997

The children's yale-brown obsessive-compulsive scale is a 10-item clinician-report measure assessing obsessive-compulsive disorder symptoms in youths ages 6-17. The children's yale-brown obsessive-compulsive scale can be used as a screening tool and to watch symptom changes over time. The children's yale-brown obsessive-compulsive scale is an adapted version of the standard adult obsessive-compulsive disorder measure, the Yale-Brown Obsessive-Compulsive Scale and consists of two subscales: obsessions and compulsions.


Each item is rated on a 5-point scale from zero to four; except for items on control, which ask for ratings from zero to four. Total scores range from 0 to 40. Ratings include clinician synthesis of parental reports on the scales’ items, from either conjoint or separate sessions.


The children yale-brown obsessive-compulsive scale demonstrates good internal consistency. It has an alpha (α) coefficient of 0.87. Its test-retest reliability over a period of 40.76 days intraclass correlation coefficient is = .79 and inter-rater reliability intraclass correlation coefficient = .84.

In addition, it also shows construct validity by convergence with total scores of the Leyton Obsessional Inventory-Child and divergence with scores on the Children’s Depression Inventory.

Download Y-BOACS


Scahill et al., 1997

Storch et al., 2004

Goodman et al., 1989

Kovacs, 1985

(Cooper, 1970),

Scahill et al., 1997


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