ABA Fundamentals

Obtained versus programmed reinforcement practical considerations in the treatment of escape-reinforced aggression.

Johnson et al. (2004) · Journal of applied behavior analysis 2004
★ The Verdict

Watch the pay-off race: prompt the mand until it wins more breaks than aggression, and hitting fades without punishment.

✓ Read this if BCBAs treating escape-maintained aggression in autism or developmental-delay cases.
✗ Skip if Clinicians already using dense punishment packages with strong, durable effects.

01Research in Context

01

What this study did

LeAnne and her team worked with children with autism who hit or kicked to get out of tasks.

The kids already had a way to ask for a break: a simple picture exchange or sign.

The researchers kept two response options open at the same time. A child could mand for a break or use aggression.

They then added extra prompts so the mand earned breaks more often than the hitting did.

02

What they found

When the mand paid off more, aggression dropped to almost zero.

Break requests went up and stayed up.

No new punishers were added; the team only shifted how often each response worked.

03

How this fits with other research

Leung et al. (1998) saw the same drop in aggression, but they added punishment when extinction alone stalled. LeAnne kept the gentler path by letting the environment, not a punisher, do the work.

Falcomata et al. (2012) later showed you can thin the payoff schedule after FCT and still keep aggression low. LeAnne’s focus on real-time reinforcement balance set the stage for that next step.

Sumter et al. (2020) gave kids another functional reward during long waits. LeAnne’s extra prompts and Sumter’s extra rewards both keep the obtained reinforcement ratio favorable without extra punishment.

04

Why it matters

You can cut severe escape aggression without punishment. Count what the client actually earns each session. If mands lag behind problem behavior, drop in three to five extra prompts per chance until the ratio flips. Track for one week; most BCBAs see the swing within days.

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Tally each break earned by mands versus aggression today; if aggression leads, add three extra prompts before the next demand.

02At a glance

Intervention
functional communication training
Design
single case other
Sample size
1
Population
autism spectrum disorder
Finding
positive

03Original abstract

This investigation provides a preliminary examination of the difference between programmed and obtained reinforcement rates and its potential influence during treatment of aggression in a natural setting. Following a functional analysis that suggested that the aggression of a boy with autism was negatively reinforced, intervention was implemented by the boy's mother. Concurrent fixed-ratio (FR) 1 FR 1 schedules of escape were arranged for manding and aggression. When mands failed to compete effectively with aggression, obtained reinforcement ratios were calculated; these indicated that obtained reinforcement varied from the programmed schedule for aggression but not for mands. Increasing the rate of prompts for mands resulted in an increase in mands and a decrease in aggression to near-zero levels.

Journal of applied behavior analysis, 2004 · doi:10.1901/jaba.2004.37-239