Assessing and programming generalized behavioral reduction across multiple stimulus parameters.
Generalization after escape extinction is hit-or-miss—probe each new therapist, task, and room, and retrain on the spot if self-injury returns.
01Research in Context
What this study did
Five children who hurt themselves to escape work took part.
The team used escape extinction: they no longer let the kids leave when self-injury happened.
After the behavior dropped in the first room, they tested if it stayed low with new therapists, new tasks, and new places.
They changed only one thing at a time and kept notes each step.
What they found
Two kids kept low self-injury right away in every new test.
One child needed two changes (new room and new task) before the low rates held.
Two kids had to practice extinction again in each new setup; only then did the behavior stay down.
In short, generalization was not guaranteed—it was different for each child.
How this fits with other research
Barszcz et al. (2021) later saw faster generalization when they used RIRD for vocal stereotypy.
Their effects moved to new settings quicker than the first teaching phase, showing extinction can generalize more smoothly with other topographies.
Layton et al. (2022) also varied context on purpose, but with DRA instead of pure extinction.
They found training the replacement skill in a separate room cut later relapse, backing the idea that you should plan where you teach and probe.
Together these papers say: check generalization early, and if it fails, retrain while you move one stimulus at a time.
Why it matters
Do not assume one extinction session will stick everywhere.
Probe first: take the child to a new room, hand them to a new therapist, or give a harder task and watch for the return of self-injury.
If the behavior pops back up, run extinction again in that new setup before you move to the next change.
This step-by-step check saves you from surprise bursts and keeps the child safe across the day.
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Join Free →After extinction works in your first room, walk the client to a new room for five trials; if self-injury spikes, repeat extinction there before moving on.
02At a glance
03Original abstract
Generalization across three stimulus parameters was examined for 5 individuals whose self-injurious behavior was maintained by escape from task demands. Prior to treatment, three stimulus parameters (therapist, setting, and demands) were systematically varied across baseline sessions. These variables were held constant during treatment, which consisted of escape extinction. When treatment was completed, three novel stimulus parameters were probed. If the rate of self-injury was high during this probe, treatment was reimplemented with one new stimulus parameter (the other two were the same as in the original treatment condition). Following this second treatment, another probe with three novel stimuli was conducted. If the rate of self-injury was again high, treatment was implemented again while a second stimulus parameter was changed. This sequence continued until generalization was observed across the three parameters. Results showed idiosyncratic differences in generalization. The behavior of 2 subjects showed complete generalization during the first novel probe. A 3rd subject's behavior showed generalization following treatment across two stimulus parameters (setting and therapist). The behavior of the 2 remaining subjects showed a complete lack of generalization across the three parameters; both subjects required training for novelty by randomly varying the stimulus parameters for a substantial number of sessions.
Journal of applied behavior analysis, 1994 · doi:10.1901/jaba.1994.27-371