Toward Earlier Bedtimes: Randomized Trial of Multi-Method Interventions in a Community Cohort of Adolescents.
Kuula L; Pesonen AK · 2026 · The Journal of adolescent health : official publication of the Society for Adolescent Medicine
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Purpose Many adolescents develop very late circadian rhythms, indicating delayed sleep phase. Interventions are sparse, and the stability of any improvements is rarely reported. To evaluate how late sleep patterns can be improved, we…
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Metadata source: Europe PMC · DOI 10.1016/j.jadohealth.2025.12.247