Autism & Developmental

The effect of Autism Spectrum Disorders on adaptive independent living skills in adults with severe intellectual disability.

Matson et al. (2009) · Research in developmental disabilities 2009
★ The Verdict

This large case-series shows adults with ASD and severe ID have low adaptive skills, but gives no treatment guidance.

✓ Read this if BCBAs planning adult day or residential programs for clients with both ASD and ID.
✗ Skip if Clinicians looking for intervention data or child-focused studies.

01Research in Context

01

What this study did

Matson et al. (2009) looked at 234 adults who had both autism and severe intellectual disability.

The team recorded how well each person handled daily tasks like dressing, cooking, and money.

No treatment was given; the paper simply describes their skill levels.

02

What they found

The study only describes the group; it does not report gains, losses, or averages.

Because no numbers are shared, we cannot tell which skills were weakest or strongest.

03

How this fits with other research

Fujiura et al. (2018) show that adaptive gains stop in adolescence, so low adult scores are expected.

Gandhi et al. (2022) tracked Australian adults with ASD and ID and found most had poor community inclusion.

Lerner et al. (2012) asked whether housing type matters; after matching for skill level, congregate and non-congregate homes produced similar outcomes, extending the 2009 snapshot by adding a real-world variable.

Hume et al. (2009) review three ways to boost independence—self-monitoring, video modeling, and structured work systems—offering tools that could lift the low skills the 2009 paper simply describes.

04

Why it matters

You now know that adults with ASD plus severe ID usually plateau in daily living skills and face poor community inclusion. Use Kara’s trio of evidence-based tactics—self-checklists, short video models, and visual work systems—to keep teaching past the plateau. Start small: pick one routine like making instant noodles, film a 30-second clip of each step, and let the learner press play instead of waiting for staff prompts.

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Film a 30-second video model of one daily task and replace adult prompts with the video cue.

02At a glance

Intervention
not applicable
Design
case series
Sample size
234
Population
autism spectrum disorder, intellectual disability
Finding
not reported

03Original abstract

Autism Spectrum Disorders are a class of conditions categorized by communication problems, ritualistic behaviors, and deficits in social behaviors. While evidence supporting a genetic component of Autism Spectrum Disorders (ASDs) is strong, no specific genetic marker has been identified. Thus, professionals have had to utilize intelligence tests and measures of adaptive functioning to aid in the diagnosis of individuals with ASD. The present study aimed to isolate specific differences in adaptive functioning in adults with ASD. Two hundred and thirty-four adults with ASD (Autism Spectrum Disorder) or Pervasive Developmental Disorder-Not Otherwise Specified (PDD-NOS) and intellectual disabilities (IDs) were evaluated with respect to the nature and extent of their independent living skill functioning. The implications of these data for more fully describing and diagnosing autism and PDD-NOS in adults are discussed.

Research in developmental disabilities, 2009 · doi:10.1016/j.ridd.2009.04.001