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Adaptive Behavior Assessment System, Third Edition

Patti L. Harrison, PhD, and Thomas Oakland, PhD

Assesses adaptive skills across the life span
Paper and pencil, Software
Age range:
Birth to 89 years
15–20 minutes
Qualification level:
A degree from an accredited 4-year college or university in psychology, counseling, speech-language pathology, or a closely related field plus satisfactory completion of coursework in test interpretation, psychometrics and measurement theory, educational statistics, or a closely related area; or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

Useful for Diagnosing and Classifying Developmental, Learning, and Behavioral Disabilities and Disorders


Identifying your clients' strengths and weaknesses; and documenting and monitoring progress over time, the ABAS-3 provides a comprehensive norm-referenced assessment of adaptive skills in individuals ages birth–89 years.

Features and benefits

  • Retains all the essential features that made the second edition the preferred instrument but is even easier to administer and score.
  • Particularly useful for evaluating those with developmental delays, autism spectrum disorder, intellectual disability, learning disabilities, neuropsychological disorders, and sensory or physical impairments.
  • Integrates assessment, intervention planning, and progress monitoring.
  • Developed with American Association on Intellectual and Developmental Disabilities (AAIDD), DSM-5, and IDEA standards in mind.

Available in Spanish

Several ABAS-3 forms have been translated into U.S. Spanish: the Adult Forms, the School: Parent Forms, the School: Teacher Forms, the Infant and Preschool: Parent/Primary Caregiver Forms, and the Infant and Preschool: Teacher/Daycare Provider Forms. These products use English norms only.