ABA Fundamentals

Evaluation of tactile prompts with a student who is deaf, blind, and mentally retarded.

Berg et al. (1989) · Journal of applied behavior analysis 1989
★ The Verdict

Texture prompts let deaf-blind students master packaging tasks and transfer to new items without starting over.

✓ Read this if BCBAs teaching vocational or daily-living skills to learners with deaf-blindness or severe vision and hearing loss.
✗ Skip if Clinicians working only with verbal, sighted clients who can use visual or auditory cues.

01Research in Context

01

What this study did

The team worked with a student who was deaf, blind, and had an intellectual disability.

They used small tactile prompts—tiny bumps and textures—glued to packaging materials.

A multiple-baseline design showed the prompts while the student assembled items for a mock job task.

02

What they found

Tactile cues raised the student’s accuracy on three different packaging tasks.

The student kept doing well when new, untrained materials were introduced.

Performance dropped if the prompts were removed, so the cues stayed in place for maintenance.

03

How this fits with other research

Bouck et al. (2016) later got the same kind of gain using audio prompts for price-comparison, showing the prompt type can change while the effect holds.

Evans et al. (2024) extended the idea to college students with hearing loss, swapping tactile bumps for computer-delivered sign prompts and still seeing strong skill gains.

Allen et al. (2001) used a wristwatch instead of tactile prompts to maintain low aerophagia after physical guidance ended—both studies fade prompts to a wearable cue that stays with the learner.

04

Why it matters

If you teach learners with dual sensory loss, add texture cues to task materials—felt dots, raised tape, or sandpaper squares. These cheap marks can replace visual checklists and still give clear instruction. When materials change, keep the same tactile “signature” so the learner transfers skills without full retraining.

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Stick a small textured label on each new work material and prompt the learner to feel it before the first step.

02At a glance

Intervention
prompting and fading
Design
multiple baseline across behaviors
Sample size
1
Population
intellectual disability
Finding
positive

03Original abstract

We provided tactile cues to a student who was deaf, blind, and mentally retarded to guide her performance on a variety of packaging tasks. The student had previously received extensive training on multiple packaging and sequencing tasks through her vocational education program. Although she was able to complete these tasks, each change in materials necessitated that similar levels of retraining be conducted in order for her to perform revised tasks. Tactile cues were introduced and evaluated through a multiple baseline with sequential withdrawal design for two envelope-stuffing tasks and one bagging task. Results indicated that the tactile prompts were effective in guiding her performance on the training task and in promoting generalization to novel tasks and cues. Continued use of the cues was necessary to maintain the student's performance. Our findings suggest that tactile prompts function similarly to picture prompts and may be an effective alternative external prompting system for persons for whom picture prompts would not be appropriate.

Journal of applied behavior analysis, 1989 · doi:10.1901/jaba.1989.22-93