Behavioral Momentum

Goal: Build a short run of "yes" before asking for the "no" — using a string of easy, high-probability requests to increase compliance with a harder, low-probability one.

Who It's For

Behavioral Momentum supports:

• Students at Tier II, Tier III, or receiving special education behavior support

• Students who exhibit work refusal or frequently say no to completing tasks

• Situations involving a difficult task, or a student choosing not to follow adult directives

Why It Works

Compliance builds its own momentum. When a student successfully completes a string of easy requests, they carry that pattern of "yes" into the harder request that follows — making them more likely to comply than if the difficult request had been asked cold.

What success looks like: the student completes the low-probability request more readily, with less latency and less pushback, after a short run of high-probability requests.

How to Implement It

1. Start with high-probability requests — things the student enjoys or can complete easily (e.g., running an errand, giving a high five, writing their name on paper).

2. After 2–3 successful high-probability requests, deliver the low-probability request — the one the student is less likely to complete with ease.

Tips for Success

• Keep high-probability requests brief. They're a warm-up, not the main task — quick, simple, and something the student has a track record of doing.

• Deliver requests in close succession. The momentum effect depends on the high-probability requests and the low-probability request happening close together, not spread out over time.

• Praise each success along the way. Reinforcing the high-probability requests helps build the momentum that carries into the harder ask.

• Fold in academic content when possible. Using previously mastered material as high-probability requests can build compliance and reinforce retention at the same time.

• Confirm the function first. This works best for tasks refused out of general noncompliance rather than a specific skill deficit — pair with Function of Behavior thinking if refusal seems tied to task difficulty.

Helpful Tools

• Behavior Intervention Tracking Log

• Article: Mace, F.C. et al. (1988). Behavioral momentum in the treatment of noncompliance. Link

• Article: Davis, C.A., Brady, M.P., Williams, R.E., & Hamilton, R. (1992). Effects of high-probability requests on the acquisition and generalization of responses to requests in young children with behavior disorders. Link

• Behavioral Momentum overview

What Does the Research Say?

• The foundational study by Mace et al. (1988) found that a high-probability command sequence increased compliance and reduced both compliance latency and task duration for a low-probability request, across five separate experiments.

• Davis et al. (1992) found high-probability requests increased and generalized compliance in young children with behavior disorders, including children with autism.

• A classroom study using a high-probability command sequence found increased compliance to low-probability classroom commands for a student with a developmental disability, supporting it as a practical, antecedent-based (rather than consequence-based) classroom strategy.

• Research classifies high-probability request sequences as showing significant positive effects on compliance, engagement, task latency, and reduced need for prompting — though the evidence base is currently considered strong but not yet fully "evidence-based practice" status.