He et al. (2020) and evaluating sleep research

What this note covers

1. He et al. tested a defined bedtime phone restriction
2. The four-week intervention combined restriction and monitoring
3. Multiple instruments measured distinct outcomes
4. Results favoured restriction but differed across outcomes
5. Pilot design strengths coexist with major inferential limits
6. A stronger replication would test durability and mechanism

6 sections · 10 key terms & formulas · 6 common mistakes