ABA Fundamentals

SOME NOTES ON TIME OUT FROM REINFORCEMENT.

ZIMMERMAN et al. (1964) · Journal of the experimental analysis of behavior 1964
★ The Verdict

Timeout works best when it gives a real break from effort, not just from something bad.

✓ Read this if BCBAs writing timeout plans for escape-maintained behavior in clinic or school settings.
✗ Skip if Practitioners who only use sensory or attention-based interventions and never touch timeout.

01Research in Context

01

What this study did

Researchers tested timeout from reinforcement in a lab. They wanted to see if bigger work ratios made animals switch to timeout more often.

They used pigeons or rats on a two-key setup. One key gave food after many pecks. The other key paused the work for a short break.

02

What they found

The animals did not follow a simple rule. Bigger ratios did not always lead to more timeout choices.

Other things mattered too, like the warning lights and how long the timeout lasted. The old idea that animals just escape hard work was too simple.

03

How this fits with other research

Griffith et al. (2012) ran a cleaner lab test. They removed the work lever during timeout and saw big jumps in timeout picks. Their finding supports the 1964 data: animals pick timeout to rest from effort, not to dodge shock.

Ward et al. (2017) took the same timeout idea into a therapy room. A brief 'wait out' from tasks cut escape behavior and boosted compliance in kids. It shows the 1964 lab result can guide real treatment.

The 1964 paper looks shaky at first glance, but later work fills in the gaps. The early inconclusive numbers became a clear story once effort reduction was isolated.

04

Why it matters

When you plan timeout, think beyond 'break from aversives.' Check task effort, warning stimuli, and timeout length. If a child keeps escaping work, try a short wait-out instead of more escape extinction. Start small, track compliance, and adjust the task load like M et al. did with their lever.

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→ Action — try this Monday

Add a 30-second wait-out option during long work bouts; let the child choose it once, then resume the task.

02At a glance

Intervention
extinction
Design
single case other
Finding
inconclusive

03Original abstract

Pigeons produced food on a fixed-ratio schedule by pecking at one key, and an S(Delta) period by pecking at a second (switching) key. Switching behavior was examined as a function of (a) size of the fixed ratio, (b) whether the S(Delta) was of fixed duration or could be determined by the bird, (c) the introduction of a novel food S(D), (d) extinction of food responding, and (e) the stimuli associated with the S(D) and S(Delta) conditions. No monotonic relationship was obtained between ratio size and switching behavior. Switching behavior was, however, influenced by many variables. The results suggest that an interpretation of switching behavior in terms of its being reinforced by the removal of aversive conditions, is open to considerable question.

Journal of the experimental analysis of behavior, 1964 · doi:10.1901/jeab.1964.7-13