(ABDS) Adaptive Behavior Diagnostic Scale

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

(ABDS) Adaptive Behavior Diagnostic Scale

Benefits

Assesses the presence and magnitude of adaptive behavior deficits

Ages

2 to 21 years

Admin Time

30 minutes

Format

Interview rating scale

Scores

Three domain scores—Conceptual, Social, and Practical—and the Adaptive Behavior Index

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Show details for ABDS Kit

Product #: EM-196

ABDS Kit

Includes 25 Examiner Record Booklets; Rating Scale Reference Card; Examiner’s Manual; all in a sturdy storage box

$135.00

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ABDS Examiner's Record Booklet (Pack of 25)

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Product #: EM-196A

ABDS Examiner's Record Booklet (Pack of 25)

$45.00

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ABDS Examiner's Manual

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Product #: EM-196M

ABDS Examiner's Manual

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(ABDS) Adaptive Behavior Diagnostic Scale

(ABDS) Adaptive Behavior Diagnostic Scale

BY NILS A. PEARSON, JAMES R. PATTON, AND DANIEL W. MRUZEK

The Adaptive Behavior Diagnostic Scale is an interview-based rating scale that assesses the adaptive behavior of individuals ages 2 to 21 years. The primary function of the ABDS is to establish the presence and the magnitude of adaptive behavior deficits. The ABDS scores are compatible with state and federal special education classification systems and consistent with the DSM-V and American Association on Intellectual and Developmental Disorders (AAIDD) definitions of intellectual disability. The ABDS may be used to assess the adaptive behavior of individuals with or suspected of having intellectual disability, autism spectrum disorder, learning disabilities, mental or behavioral health condition or other similar concerns.

The test yields reliable and valid scores for three adaptive behavior domains (Conceptual, Social, Practical), comprised of 50 items each. Specific skill areas measured in the three domains and the overall composite score. Each are described below:

  • Conceptual Domain: Language, reading, writing, math, reasoning, knowledge, and memory
  • Social Domain: Empathy, social judgment, gullibility, communication skills, the ability to make and retain friendships, and similar interpersonal capabilities
  • Practical Domain: Self-management personal care, home living, community use, job responsibilities, money management, recreation, and organizing school and work tasks
  • Adaptive Behavior Index: A combination of the three domain scores

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).

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