Assessing and training teachers in the generalized use of behavior modification with autistic children.

Hopkins et al. (1977) trained 11 teachers to use behavior-mod tricks with autistic kids.

They used a behavioral-skills-training package: explain, model, practice, and feedback.

Kids improved only after every teacher hit a high fluency score across settings.

All teachers quickly reached the mastery line and used the skills in new rooms.

Child progress showed up only after staff were fluent—no gains during baseline.

Wallander et al. (1983) later swapped teachers for siblings and got the same pattern: train first, then kids bloom.

Griffith et al. (2012) tried a one-day workshop instead; staff knew more but helped less—short dose backfires.

Kisbu-Sakarya et al. (2021) showed lecture-style training lifts willingness yet leaves attitudes flat; skills still need drill.

The 1977 study is the root: heavy practice beats quick talks.

Before you chase child goals, lock staff fluency. Run rehearsal with feedback until each teacher hits 90 % correct across two rooms. Then, and only then, expect learner gains. Make mastery the gate, not the afterthought.