Assessment & Research

Evaluation of a computer-aided system providing pictorial task instructions and prompts to people with severe intellectual disability.

Lancioni et al. (1999) · Journal of intellectual disability research : JIDR 1999
★ The Verdict

A small computer that shows step-by-step pictures helps adults with severe ID finish daily tasks better than printed cards.

✓ Read this if BCBAs supervising adults with severe ID in day or residential programs.
✗ Skip if Clinicians who only serve young children with mild delays.

01Research in Context

01

What this study did

McMillan et al. (1999) tested a small computer that showed picture prompts. Four adults with severe intellectual disability took part.

The team compared the computer pictures to laminated picture cards. Adults tried daily tasks like making juice or setting a table.

02

What they found

Every adult did more steps correctly with the computer prompts. The computer beat the cards each time.

Staff did not need to give extra help when the computer was used.

03

How this fits with other research

Lancioni et al. (2000) is the next-year upgrade. It kept the same computer but grouped the pictures. Clients still needed fewer prompts, showing the idea keeps getting better.

Volkmar et al. (1985) did the reverse trick. They taught students to use a computer by giving them picture cards. Our target study flips that: the computer now gives the pictures.

Van Hanegem et al. (2014) moved the same tool to older adults with Alzheimer’s. The pictorial computer prompts still worked, proving the method stretches beyond ID.

04

Why it matters

If you run a day or vocational program for adults with severe ID, swap laminated cards for a cheap tablet. Load one photo per step and let the device do the prompting. You should see faster task completion and less staff talk. Start with one routine, measure correct steps, then expand to other chores once the data climb.

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Load a task analysis onto a tablet, hand it to the client, and count correct steps for one routine.

02At a glance

Intervention
prompting and fading
Design
alternating treatments
Sample size
4
Population
intellectual disability
Finding
positive

03Original abstract

The present study extended the evaluation of a computer-aided system providing pictorial instructions and prompts to promote task performance in people with severe intellectual disability. Four people were presented with two sets of tasks. The participants used the computer-aided system for one set and a card (control) system for the other. The results indicate that the computer-aided system was more effective than the card system with all participants. Three of the participants preferred the computer-aided system, while one favoured the card system.

Journal of intellectual disability research : JIDR, 1999 · doi:10.1046/j.1365-2788.1999.43120165.x