ABA Fundamentals

Suppression of behavior by timeout punishment when suppression results in loss of positive reinforcement.

Kaufman et al. (1968) · Journal of the experimental analysis of behavior 1968
★ The Verdict

Timeout suppresses behavior because the break is aversive, not because the client loses reinforcers.

✓ Read this if BCBAs using timeout or response-interruption with clients who have rich reinforcement schedules.
✗ Skip if Practitioners relying solely on differential reinforcement without punishment components.

01Research in Context

01

What this study did

Baron et al. (1968) worked with rats on fixed-ratio schedules. The rats pressed a lever for food pellets.

After every 30 presses the rats got a short timeout. Lights went off and the lever stopped working.

The team varied timeout length and food deprivation to see how much the rats slowed their pressing.

02

What they found

Longer timeouts made the rats press much less. Even though fewer presses meant fewer pellets, the pause still worked.

Hungrier rats slowed less, but the timeout still cut their rate. The break itself was the punisher, not lost food.

03

How this fits with other research

WALLER et al. (1962) first showed that a pre-timeout cue alone can suppress pigeon pecking. Baron et al. (1968) kept the cue and added the actual timeout, proving the break does the heavy work.

Later, Mann et al. (1971) seemed to flip the script. They found timeout from shock avoidance can reinforce new behavior. The two papers look opposite until you see the schedule: punishment needs rich food reinforcement, while reinforcement needs painful avoidance relief.

Slocum et al. (2019) moved the same timeout logic to preschool classrooms. Delayed timeout still reduced problem behavior, showing the rat finding holds across species and settings.

04

Why it matters

You now know timeout works even when it costs the client preferred items. Do not fear a short break will "waste teaching time." The pause itself is the penalty. Use brief, consistent timeouts when problem behavior is maintained by strong reinforcement. Keep the schedule lean so the loss of activity, not just lost tokens, does the work.

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→ Action — try this Monday

Try a 30-second quiet timeout immediately after each instance of problem behavior; track if response rate drops even when the client earns fewer reinforcers.

02At a glance

Intervention
extinction
Design
single case other
Population
not specified
Finding
positive

03Original abstract

This investigation, using rats as subjects and punishment by timeout for responses maintained on a ratio schedule, sought to determine whether behavior would be suppressed by timeout punishment when such suppression also reduced reinforcement density or frequency. A series of experiments indicated that timeout punishment suppressed responding, with the degree of suppression increasing as a function of the duration of the timeout period. Suppressive effects were found to decrease as a function of increases in deprivation (body weight) and were eliminated when the punished response also was reinforced. It was concluded that timeout can produce aversive effects even when loss of reinforcement results. An alternative interpretation of the findings, based on the effects of extinction periods and delay of reinforcement on chained behavior, was discussed.

Journal of the experimental analysis of behavior, 1968 · doi:10.1901/jeab.1968.11-595