Training student teachers to reposition infants frequently.

Six student teachers learned to move babies every 20 minutes. The trainer gave a short lesson, a demo, and a simple wall chart. Each teacher practiced with dolls until they hit 90% accuracy.

The study used a multiple-baseline design across participants. No baby was left in one spot too long.

All six teachers started moving infants correctly after the brief package. Skills stayed high even when the supervisor stopped giving feedback.

The wall chart alone kept the new habit alive.

Mery et al. (2022) ran the same BST recipe with medical students. Instead of repositioning, the students taught parents safe-sleep rules. Both studies show a 30-minute BST loop works for any infant-safety skill.

Shea et al. (2020) removed the live coach. Mothers learned infant imitation through an online module. Skills went up, but the effect was smaller and faded faster. The 2006 chart-only maintenance looks stronger, likely because the chart stayed on the wall as a daily cue.

Kamana et al. (2024) took BST to 200 staff across group homes. They added on-the-job feedback and kept gains for months. The 2006 study shows you can skip extra feedback if you give a simple visual prompt from day one.

You can teach any caregiver to protect infants in under an hour. Use a demo, a quick rehearsal, and a posted checklist. The chart does the heavy lifting later, so you don’t need daily supervision. Try it next session: hand the chart to the aide, watch once, and walk away.