ABA Fundamentals

Using token reinforcement to increase walking for adults with intellectual disabilities

Krentz et al. (2016) · Journal of Applied Behavior Analysis 2016
★ The Verdict

A simple token economy can triple daily walking for adults with ID—just pre-select backup reinforcers and pay one token per 50-m lap.

✓ Read this if BCBAs running day programs or group homes for adults with intellectual disability.
✗ Skip if Clinicians focused only on verbal behavior or academic skills.

01Research in Context

01

What this study did

Five adults with intellectual disability walked around a 50-meter indoor track.

Staff gave each walker one plastic token for every lap.

Tokens could buy snacks, drinks, or small items the walkers picked the day before.

The study used an ABAB design: tokens on, tokens off, tokens on again.

02

What they found

When tokens were available, four people tripled their daily laps.

The fifth person doubled his laps.

Walking dropped back to low levels when tokens stopped.

It shot up again as soon as tokens returned.

03

How this fits with other research

Allison (1976) got the same big jump in classroom work using tokens with kids.

Together the two studies show tokens work across ages and settings.

Bonfonte et al. (2020) found high-preference snacks beat brand-new tokens in a lab test.

That sounds like a clash, but Krentz used items walkers already loved, so the tokens were backed by strong reinforcers.

Skrtic et al. (1982) saw no loss when they removed tokens from a stuttering program.

Their task was already fluent; walking is new behavior, so tokens still matter.

04

Why it matters

You can boost daily exercise for adults with ID in one afternoon.

Let the client choose backup items, pay one token per lap, and watch steps soar.

No fancy tech needed—just chips, drinks, and a pocket of plastic tokens.

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→ Action — try this Monday

Ask each client to pick three favorite snacks, walk the track, and hand out one token per lap.

02At a glance

Intervention
token economy
Design
reversal abab
Sample size
5
Population
intellectual disability
Finding
positive
Magnitude
large

03Original abstract

The purpose of this study was to evaluate the effectiveness of token reinforcement, using an ABAB reversal design, for increasing distance walked for adults with mild to moderate intellectual disabilities at an adult day-training center. Five participants earned tokens for walking 50-m laps and exchanged tokens for back-up reinforcers that had been identified through preference assessments. Token reinforcement resulted in a substantial increase from baseline in laps walked for 4 participants.

Journal of Applied Behavior Analysis, 2016 · doi:10.1002/jaba.326