Autism & Developmental

Promoting independent task performance by persons with severe developmental disabilities through a new computer-aided system.

Lancioni et al. (2000) · Behavior modification 2000
★ The Verdict

Clustered picture prompts on a pocket computer help adults with severe DD finish tasks with fewer reminders than old card strips.

✓ Read this if BCBAs supervising adults with severe DD in vocational or home settings.
✗ Skip if Clinicians serving only verbal clients who read text prompts.

01Research in Context

01

What this study did

Six adults with severe developmental disabilities joined the study.

Each person tried two ways to get picture cues: laminated cards or a small computer that showed stacked photos.

Staff compared how many task steps each adult got right with each prompt type.

02

What they found

Everyone did more steps correctly when the computer showed the pictures.

The computer grouped the photos together, so users needed fewer repeats to finish the job.

In short, clustered digital prompts beat single paper cards.

03

How this fits with other research

McMillan et al. (1999) tested the same computer system one year earlier, but the photos appeared one at a time. The 2000 paper adds clustering and gets even better results, so it updates the older setup.

Volkmar et al. (1985) first paired picture prompts with computers for students with intellectual disability. The new study keeps that idea but moves the device into daily living tasks instead of computer class.

Van Hanegem et al. (2014) later took the clustered computer prompts to adults with Alzheimer’s and found the same benefit, showing the trick works across very different groups.

04

Why it matters

If you run vocational or daily-living programs, swap bulky card strips for a cheap tablet. Load the photos in one tight stack per task. Expect fewer prompt repeats and faster independence, freeing your hands for other clients.

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→ Action — try this Monday

Load tomorrow’s task photos onto a tablet as one scrollable cluster and track how many fewer prompts each client needs.

02At a glance

Intervention
prompting and fading
Design
alternating treatments
Sample size
6
Population
developmental delay
Finding
positive

03Original abstract

This study involved two experiments. In Experiment 1, a computer-aided system for promoting task performance by 6 persons with severe developmental disabilities was compared with a card system. The computer-aided system was portable and presented pictorial task instructions (one instruction per step) and prompts. In Experiment 2, the same system was used, but the number of instruction occasions was reduced. In one condition, the system presented all the instructions used in Experiment 1 but mostly in clusters rather than individually. In another, the system presented part of the Experiment 1 instructions. Three Experiment 1 participants also served in Experiment 2. Experiment 1 results indicated all 6 participants had higher percentages of correct steps with the computer system and preferred it to the card system. Experiment 2 results indicated that the condition in which the instructions were clustered was more effective for maintaining correct task performance. Implications of the findings were discussed.

Behavior modification, 2000 · doi:10.1177/0145445500245005