Generalized Verbal Behavior Increases Following a Speaker Immersion Intervention

Naresh and team tested a school-day program called Speaker Immersion Protocol. Three preschoolers got about 100 chances to ask for things each day.

The kids did not have autism labels. Staff watched if the children used new words to ask and to name items they never practiced.

All three children asked for more items and also named new items without extra teaching. The gains stayed for weeks.

Untrained tacts popped up after the heavy mand practice. One intervention created two new verbal skills.

Zhou et al. (2026) saw the same leap in untaught words, but in Chinese-English bilingual kids. Both studies show that one verbal operant can bloom into others.

Deserno et al. (2017) and McHugh et al. (2011) got similar generalization with children who have autism. They used tact drills on feelings instead of mand floods, yet the spread of new words matched.

Galtress et al. (2012) and Kay et al. (2020) worked on intraverbals, not mands. Their prompt-comparison angle differs, but the goal of widening verbal reps stays the same.

You do not need separate lessons for every verbal operant. Flood the day with asking chances and watch tacts appear for free. Preschool classrooms, daycare rooms, and clinic play areas can all use the 100-mand trick. Track how many ask-chances you offer before lunch; aim for 100 and you may get bonus naming without extra work.