Increasing Conversation Using Restricted Access and Chain Schedules of Reinforcement

Murphy and team worked with one high-school student who had autism.

The teen loved a video game but rarely spoke in full sentences.

They locked the game and told him, "Say at least three related words to get it back."

Each time he met the word chain, he earned a short play period.

The student’s multi-word sentences jumped as soon as the rule started.

Conversation stayed high while the chain schedule stayed in place.

Yamamoto et al. (2020) got similar gains with a totally different tool: printed scripts that never faded.

Both studies show you can grow new sentences without hand-over-hand prompts.

Mann et al. (2020) later used the same reinforcement idea with college students, adding a self-question step.

That study widens the age range and proves the logic still works for adults.

Koegel et al. (2013) also boosted lunchtime talk with high-schoolers, but they used the student’s special interests instead of a chain schedule.

Together the papers say: pick the motivator the learner already wants—game, script, or interest—and tie it to talking.

If a client has a strong preferred item, try a simple contingency: talk first, play second.

Start with short, clear chains like "three-word sentence."

Track data each session; thin the schedule only after the talk stays steady.

No extra staff or materials needed—just the item the teen already wants.