Adaptive Behavior Assessment System, Third Edition (ABAS-3)

Purpose: The ABAS-3 is a norm-referenced assessment designed to evaluate adaptive skills necessary for individuals to effectively and independently manage personal care, interact with others, and fulfill environmental demands across various settings, including home, school, work, and the community. The ABAS-3 aims to identify both strengths and weaknesses in adaptive behavior to assist with diagnosis, eligibility determination, and treatment planning.

Population: The ABAS-3 is designed for a wide age range, spanning from birth to 89 years old.

Publication Dates: The ABAS-3 was published between 2000 and 2015.

Acronym: ABAS-3

Scores: The ABAS-3 provides a comprehensive assessment across 15 scores:

• 11 Skill Areas:
  • Communication
  • Functional Academics/Pre-Academics
  • Self-Direction
  • Leisure
  • Social
  • Community Use
  • Home/School Living
  • Health and Safety
  • Self-Care
  • Work
  • Motor
• 3 Adaptive Domains:
  • Conceptual (combines Communication, Functional Academics/Pre-Academics, and Self-Direction)
  • Social (combines Leisure and Social)
  • Practical (combines Community Use, Home/School Living, Health and Safety, Self-Care, and Work)
• 1 Overall Score:
  • General Adaptive Composite (GAC)

Administration: The ABAS-3 is designed for individual administration.

Forms: Five distinct forms cater to different age groups and respondents:

• Parent/Primary Caregiver Form (Ages Birth-5)
• Parent Form (Ages 5-21)
• Teacher/Daycare Provider Form (Ages 2-5)
• Teacher Form (Ages 5-21)
• Adult Form (Ages 16-89)

Price Data (2015):

• Comprehensive print kit: $310
• Comprehensive software kit: $450
• Manual: $175
• Intervention planner: $95
• Individual forms (any type): $75 per 25 forms

Foreign Language Edition: Spanish forms are available.

Time: Administration time is approximately 20 minutes.

Comments: The ABAS-3 offers flexibility with online, computer, and paper administration and scoring options.

Authors: Patti L. Harrison and Thomas Oakland

Publisher: Western Psychological Services

Other Key Features:

• Updated Norms: The ABAS-3 features updated norms, enhancing the accuracy of comparisons to individuals of similar age and background.
• New and Revised Items: The third edition includes new items that address adaptive behavior challenges associated with autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), and intellectual disability (ID). New technology-related items (e.g., internet use) are also included.
• Online Administration and Scoring: The ABAS-3 offers online administration and scoring, streamlining the assessment process.
• Cross-Form Comparisons: The ABAS-3 allows for comparisons of scores across different rating forms, providing a more comprehensive understanding of an individual’s adaptive behavior across settings.
• Intervention Planner: An Intervention Planner is included, facilitating the development of targeted support strategies based on assessment results.

Theoretical Background:

The ABAS-3 draws on several key foundations:

• AAIDD Behavior Concepts: It aligns with the American Association of Intellectual and Developmental Disorders’ behavior concepts, focusing on typical performance within typical environmental contexts.
• Special Education and Disability Classification Standards: It incorporates professional standards for special education and disability classification.
• Disability Research: It integrates research related to the diagnosis and classification of disabilities.

Development:

The ABAS-3 builds upon previous versions, incorporating new items and updating existing ones to reflect current research and societal changes. Approximately 60 new items were added, resulting in a mix of original, revised, and new content.

Technical Information:

• Standardization: The ABAS-3 was standardized on a sample of 4,500 individuals across three age categories (early and middle childhood, adulthood). The sample included both typically developing individuals and those with mild disabilities, and it was designed to be representative of U.S. Census data for gender and ethnicity.
• Reliability: The ABAS-3 demonstrates strong reliability:
  • Internal Consistency: High internal consistency estimates for the GAC (ranging from .96 to .99), adaptive domains (between .85 and .99), and adaptive skill areas (up to .99).
  • Test-Retest Reliability: High average corrected test-retest correlation coefficients were observed across different forms and age groups.
  • Interrater Reliability: High average corrected correlation coefficients for interrater reliability were reported for both the Parent and Adult forms.
• Validity: Extensive evidence supports the validity of the ABAS-3:
  • Factor Structure Analysis: The ABAS-3 effectively distinguishes between different domains of adaptive behavior.
  • Convergent Validity: Strong correlations were found between the ABAS-3 and other established measures of adaptive behavior, including the Vineland Adaptive Behavior Scale and the Behavior Assessment System for Children.
  • Clinical Group Differentiation: The ABAS-3 successfully differentiated between clinical groups of children and adolescents with diagnoses (ID, ASD, ADHD) and matched control groups.

Commentary and Summary:

The ABAS-3 is a valuable assessment tool for evaluating adaptive behavior across the lifespan. It provides a comprehensive assessment of adaptive skills, offering scores for specific skill areas, adaptive domains, and an overall General Adaptive Composite. The inclusion of updated norms, new and revised items, and an intervention planner enhances its clinical utility. The ABAS-3 has strong psychometric properties, supported by extensive reliability and validity evidence, making it a robust tool for professionals working with individuals with developmental and behavioral challenges.

References:

Adaptive Behavior Assessment System, Third Edition.

Adaptive Behavior Assessment System, Third Edition by CARLTON HENINGTON

Adaptive Behavior Assessment System®-Second Edition by MATTHEW K BURNS

Adaptive Behavior Assessment System®-Second Edition by JOYCE MEIIG1MP