Manipulating antecedent conditions to alter the stimulus control of problem behavior.

Three students with intellectual disability were hitting, screaming, or running when teachers gave work tasks. The team wanted to break the link between 'task demand' and 'problem behavior.'

They started each lesson with 30 seconds of friendly chatter and praise. Demands were added back one at a time, only after the student stayed calm for five minutes. Sessions lasted until the daily lesson was done.

Problem behavior dropped to almost zero for two students and fell by half for the third. After several days, teachers could return to normal pacing and the gains stuck.

Follow-up probes showed the work itself no longer triggered outbursts; the students now began tasks without protest.

Horner-Johnson et al. (2002) got the same size drop in challenging behavior, but they did it by letting kids respond at their own preferred speed instead of fading demands in. Both studies prove antecedent tweaks can beat consequence programs.

Heinicke et al. (2012) reviewed 20 years of small-group studies and found that any form of smooth prompting—like the gradual demands used here—works for nearly every learner with ID. Horner (1994) is one of the single-case bricks in that wall.

Hursh et al. (1974) used simple teacher prompts to spark question-asking. Their quick prompt is the mirror image of H's slow fade, yet both show that changing what happens right before the student acts can reshape the whole session.

You can stop problem behavior before it starts. Open each work period with 20–30 seconds of genuine praise, then slide in the first task only while the student is calm. Increase task load in baby steps. Once the chain is broken, you can return to normal pace and keep teaching instead of managing crises.