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Children's Yale-Brown Obsessive Compulsive Scale: reliability and validity

L Scahill, M A Riddle, M McSwiggin-Hardin

    Journal of the American Academy of Child and Adolescent Psychiatry
    |June 1, 1997
    PubMed
    Summary
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    The Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS) is a reliable and valid tool for measuring obsessive-compulsive disorder (OCD) symptom severity in youth. Its scores accurately reflect symptom severity in children and adolescents with OCD.

    Area of Science:

    • Child and Adolescent Psychiatry
    • Clinical Psychology
    • Neuroscience

    Background:

    • Obsessive-compulsive disorder (OCD) significantly impacts children and adolescents.
    • Accurate assessment of OCD symptom severity is crucial for effective treatment.
    • Validated instruments are needed to reliably measure symptom severity in pediatric populations.

    Purpose of the Study:

    • To evaluate the reliability and validity of the Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS).
    • To assess the CY-BOCS as a measure of obsessive-compulsive symptom severity in children and adolescents diagnosed with OCD.

    Main Methods:

    • Sixty-five children (aged 8-17) with OCD were assessed using the CY-BOCS.
    • Interrater agreement was evaluated in a subsample (n=24).

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  • Convergent and discriminant validity were examined by comparing CY-BOCS scores with self-reported depression, anxiety, and OCD symptoms.

    • Main Results:

    • The CY-BOCS demonstrated high internal consistency (alpha = .87).
    • Excellent interrater agreement was found for total and subscale scores (ICCs ranging from .68 to .91).
    • CY-BOCS scores correlated significantly higher with OCD self-reports (r=.62) than with depression (r=.34) or anxiety (r=.37) measures.

    Conclusions:

    • The CY-BOCS provides reliable and valid scores for assessing OCD symptom severity in pediatric patients.
    • Age and the integration of parent and patient data may influence the reliability and validity of the CY-BOCS.
    • The CY-BOCS is a suitable instrument for clinical and research use in pediatric OCD.