ABA Fundamentals

Altering the timing of academic prompts to treat destructive behavior maintained by escape.

Ebanks et al. (2003) · Journal of applied behavior analysis 2003
★ The Verdict

Give the help prompt before the next trial, not after the error, to erase escape-maintained problem behavior.

✓ Read this if BCBAs running discrete-trial or seatwork programs with kids who hit, bite, or scream to avoid tasks.
✗ Skip if Clinicians already using full instructional fading or who have only attention-maintained behavior.

01Research in Context

01

What this study did

Carr et al. (2003) worked with one child who had developmental delays.

The child hit, bit, and threw things to get out of schoolwork.

The team kept the same work on the desk.

They only changed when they gave the help prompt.

In baseline they gave the prompt after a wrong answer.

In treatment they gave the prompt right before the next trial.

They also mixed easy and hard problems together.

An ABAB reversal design proved the change worked.

02

What they found

Moving the prompt to before the trial dropped destructive behavior to zero.

Bringing back the old timing made the behavior return.

Putting the new timing back in wiped the behavior out again.

The child finished the same amount of work with no extra rewards.

03

How this fits with other research

Castañe et al. (1993) first showed that starting with zero demands and slowly adding them back cuts escape self-injury.

Carr et al. (2003) kept the full task load and still got zero problem behavior by shifting prompt timing.

Mueller et al. (2000) used response cost and got an meaningful improvement while escape stayed available.

Carr et al. (2003) matched that drop to zero without taking anything away from the child.

Slocum et al. (2025) later tested three treatments head-to-head and found instructional fading beats escape extinction early on.

Their larger trial supports the idea that tweaking how you present tasks, not just blocking escape, can win fast.

04

Why it matters

You can wipe out escape-maintained problem behavior tomorrow without cutting task difficulty or adding rewards.

Just give the corrective prompt before the next trial and mix in some easy problems.

This takes zero extra time and keeps learning trials rolling.

Try it during seatwork, tooth-brushing, or any repeated task where the child usually fights to get out.

FREE CEUs

Get CEUs on This Topic — Free

The ABA Clubhouse has 60+ on-demand CEUs including ethics, supervision, and clinical topics like this one. Plus a new live CEU every Wednesday.

60+ on-demand CEUs (ethics, supervision, general)
New live CEU every Wednesday
Community of 500+ BCBAs
100% free to join
Join The ABA Clubhouse — Free →
→ Action — try this Monday

In your next session, move the prompt to one second before the next trial and slide three mastered tasks between each new one.

02At a glance

Intervention
prompting and fading
Design
reversal abab
Population
developmental delay
Finding
strongly positive
Magnitude
very large

03Original abstract

Following a functional analysis showing that destructive behavior was reinforced by escape, we altered the aversiveness of task demands by interspersing easy and difficult tasks and by presenting a corrective prompt as an antecedent event the next time a previously failed item was presented; this procedure was compared with one in which the corrective prompt was provided as an immediate consequence. Results of a reversal design showed that the antecedent prompt acted as an establishing operation and reduced destructive behavior to zero.

Journal of applied behavior analysis, 2003 · doi:10.1901/jaba.2003.36-355