Extinction in ABA: What RBTs Need to Know
Extinction means withholding the reinforcement that was previously maintaining a behavior, so the behavior stops producing the outcome it used to produce and, over time, decreases. It’s a Behavior Reduction procedure, part of the domain worth 19% of the scored RBT exam, and it’s one of the more misunderstood terms in the field because it’s frequently confused with punishment, even though the two work through different mechanisms.
Extinction isn’t about ignoring a behavior in general; it’s specifically about withholding the particular reinforcement that was maintaining that behavior, which requires knowing what that reinforcement actually was in the first place.
(RBT HQ is not affiliated with the BACB. This page explains a standard applied behavior analysis concept in plain language; it does not reproduce any BACB exam question.)
How is extinction different from punishment?
Extinction removes reinforcement that was maintaining a behavior; punishment adds or removes something specifically to decrease a behavior going forward. If a child’s tantrum has been getting them access to a tablet, extinction means the tantrum stops resulting in tablet access. That’s different from punishment, which would involve adding an aversive consequence or removing something the child already has, specifically because the tantrum happened. Extinction is about stopping a behavior from working; punishment is about attaching a cost to it.
What is an extinction burst, and why does it happen?
A temporary increase in the behavior’s frequency, intensity, or duration right after extinction begins, before the behavior starts to decrease. It happens because the behavior has worked before, reliably, so when it suddenly stops producing the expected outcome, the behavior often escalates first, essentially “trying harder” in a way that used to work in similar situations. Extinction bursts are a well-documented, expected part of the extinction process, not a sign that the procedure is failing.
| What to expect during extinction | Why it happens |
|---|---|
| Extinction burst (temporary increase) | The behavior briefly escalates before it decreases |
| Extinction-induced variability | New or different behaviors may emerge briefly |
| Spontaneous recovery | The behavior can briefly reappear later, even after decreasing |
| Gradual decrease overall | The behavior trends down over the intervention as a whole |
Why does correctly identifying the function of a behavior matter so much for extinction?
Because extinction only works if you’re actually withholding the reinforcement that was maintaining the behavior. If a tantrum is maintained by escape from a demand, but the plan withholds attention instead of escape, extinction won’t work, since attention was never the reinforcer keeping the behavior going in the first place. This is exactly why extinction procedures are built from functional behavior assessment and ABC data findings, not guesswork about what “should” be reinforcing.
Is extinction always the right approach for reducing a behavior?
No, and a plan often pairs extinction with a positive procedure rather than using it alone. Combining extinction of a problem behavior with differential reinforcement of an appropriate alternative behavior is common, since it gives the learner a replacement way to get their needs met while the problem behavior stops working. Extinction used in isolation, without teaching or reinforcing an alternative, is a narrower and often less effective approach than a plan combining the two.
Can an RBT decide to use extinction on their own?
No. Whether and how extinction is used is a clinical decision made by the supervising BCBA or BCaBA and written into the behavior intervention plan. An RBT implements the specified procedure exactly as written, including staying consistent through an extinction burst rather than giving in to the escalated behavior, since giving in at that point can actually reinforce the escalation itself and make the original behavior worse over time.
Why is consistency so critical during extinction specifically?
Because inconsistent extinction can accidentally teach a more intense version of the behavior. If a behavior stops being reinforced most of the time but occasionally still works, especially once it escalates during a burst, that intermittent pattern can strengthen the escalated version of the behavior rather than reducing the original one. This is exactly why treatment integrity is emphasized so heavily around extinction procedures specifically.
Run the free RBT HQ practice exam to work through extinction scenarios, including distinguishing extinction from punishment, a common exam-question pattern. The free RBT HQ Exam Prep Cheat Sheet groups Behavior Reduction terms like this one together, useful since this domain carries real weight on the exam.
FAQ
Is extinction the same thing as ignoring a behavior? Not exactly. Extinction specifically withholds the reinforcement that was maintaining the behavior; simply “ignoring” a behavior that’s maintained by something other than attention wouldn’t actually be extinction.
What’s an extinction burst? A temporary increase in a behavior’s frequency or intensity right after extinction begins, before the behavior decreases. It’s an expected, documented part of the process, not a sign of failure.
Is extinction the same as punishment? No. Extinction removes reinforcement that was maintaining a behavior; punishment adds or removes something specifically to decrease a behavior going forward. They work through different mechanisms.
Why would extinction not work for a specific behavior? Most commonly because the reinforcer being withheld isn’t actually the one maintaining the behavior. Extinction only works when it targets the behavior’s real function.
Can an RBT stop using an extinction procedure mid-session if the behavior escalates? No, not independently. The plan specifies how to respond, including through an expected extinction burst. An RBT follows the plan and reports concerns to their supervisor rather than abandoning the procedure on their own judgment.
Bottom line: extinction reduces a behavior by withholding the specific reinforcement that was maintaining it, not by adding a consequence. Expect a temporary burst before improvement, and stay consistent, since inconsistency during extinction can make the behavior worse.