ABA Fundamentals

Treatment of escape-maintained aberrant behavior with escape extinction and predictable routines.

Lalli (1994) · Journal of applied behavior analysis 1994
★ The Verdict

A printed-word schedule after brief matching training beats photo schedules at reducing escape-maintained problem behavior during extinction.

✓ Read this if BCBAs running escape extinction or schedule-based interventions with non-readers who have developmental delay.
✗ Skip if Teams already using FCT with thinning who see low problem behavior.

01Research in Context

01

What this study did

Two kids with developmental delay kept hitting and screaming to get out of tasks. The team first taught each child to match printed words to pictures in a quick stimulus-equivalence lesson. Then they compared two daily schedules: one showed the task names in words, the other used photos.

All sessions used escape extinction. The child had to finish the task no matter what. The researchers tracked problem behavior and how often the child followed the first instruction.

02

What they found

Both children acted out less and complied more when they used the text schedule. The photo schedule helped a little, but the word schedule won by a clear margin.

The brief time-delay training was enough for the kids to read their schedules without prompts.

03

How this fits with other research

Boyle et al. (2021) later slid an activity schedule into FCT thinning and also saw low problem behavior. Their work extends this 1994 finding by showing schedules can keep gains after you add communication responses.

Smith et al. (1997) sounds like a contradiction: they saw teachers lose fidelity when escape extinction made kids escalate. The difference is viewpoint. Turkkan (1994) tracked child behavior only; G et al. watched the adults. High child outbursts can punish staff even while the procedure still helps the child.

Hoyle et al. (2022) and Falcomata et al. (2012) moved the field forward by pairing schedules with FCT instead of pure extinction. They kept the schedule piece but swapped in a safer, staff-friendly intervention.

04

Why it matters

If you still use escape extinction, give the child a printed-word schedule after a quick matching lesson. It cuts problem behavior better than pictures and keeps compliance high. Watch your staff, though—if extinction turns tough, switch to FCT plus schedules as later studies did. Monday move: try a text schedule first; your session may run smoother for both you and the learner.

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→ Action — try this Monday

Teach your learner to match two printed task names to pictures for five minutes, then run the session with a text schedule instead of icons.

02At a glance

Intervention
extinction
Design
single case other
Sample size
2
Population
developmental delay
Finding
positive

03Original abstract

We evaluated the effects of two daily activity schedules on 2 participants' rates of aberrant behavior and their compliance. Functional analysis identified the operant function of the participants' aberrant behaviors to be escape from tasks. Participants were taught to use stimuli contained in daily schedules, and were tested based on a modified stimulus-equivalence model that consisted of flash cards and activity schedules comprised of words or photographs that corresponded to the participants' daily activities. On pretests, the participants demonstrated simple and conditional discriminations with the photographs but not with the printed stimuli. A time-delay procedure was used to teach the participants to name the flash cards. Following training, the printed activity schedules corresponded to lower rates of problem behavior and higher rates of compliance than the photographic activity schedules. Performance on posttests indicated the establishment of functional classes of stimuli involving the flash cards and activity schedules even though this type of correspondence was not directly trained.

Journal of applied behavior analysis, 1994 · doi:10.1901/jaba.1994.27-705