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ABDS
Adaptive Behavior Diagnostic Scale

Nils A. Pearson, James R. Patton and Daniel W. Mruzek

    Normative Data


    Norms for the ABDS are based on a nationally representative sample of 1,061 children and adolescents who reside in the U.S. The internal consistency reliability coefficients of the domain and composite scores were all above .90 for all age and disability groups. A study of the diagnostic accuracy, a highly rigorous validity technique, is reported with regards to sensitivity (.85), specificity (.99), classification accuracy (.98), and receiver operating characteristic/area under the curve (.99).

    QUICK FACTS

    Age Range 2 to 21 years

    Administration Time 30 minutes

    Administration Type
    • Individually Administered
    Qualification Level B

    Formats
    • Handscored



    RELATED ASSESSMENT: CAFAS