Trial reportNature human behaviour2020
Interplay of chronotype and school timing predicts school performance.
Trial report in Nature human behaviour, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
39 citing papers in PubMed, 118 citations in OpenAlex.
- Smart Lighting and Mindfulness Interventions: Pathways to Better Health and Learning in High School Education.Journal of sleep research · 2026Article
- Associations between chronotype, physical activity and cognition in a free-living setting.Experimental brain research · 2026Article
- Chronotype-specific associations of sleep-wake schedule with behavioral, physiological, and psychological parameters.Sleep advances : a journal of the Sleep Research Society · 2026Article
- The interplay between ADHD and school shift on educational outcomes in children and adolescents: a cross-sectional and longitudinal analysis.European child & adolescent psychiatry · 2025Article
- Night Owls and Early Birds: The Role of Adolescents' Chronotype on Educational Identity Trajectories.International journal of psychology : Journal international de psychologie · 2025Article
- Sleep duration and subject-specific academic performance among adolescents in China.NPJ science of learning · 2025Article
- Validation of the Morningness-Eveningness Scale for Children (MESC) with ambulatory circadian monitoring of temperature, light exposure and activity.Journal of sleep research · 2025Article
- The economic costs and consequences of (insufficient) sleep: a case study from Latin America.The European journal of health economics : HEPAC : health economics in prevention and care · 2025Article
- Sleep Loss and Substance Use Disorders: An Issue from Adolescents to Adults.Behavioral sciences (Basel, Switzerland) · 2025Review
- Chronotype's effect on academic achievement and absence from classrooms and clinical sessions among clinical phase medical students at the Faculty of Medicine, University of Tabuk, Saudi Arabia.Frontiers in psychology · 2025Article
- Exercise, circadian rhythms, and muscle regeneration: a path to healthy aging.Frontiers in neuroscience · 2025Review
- Factors associated with late bedtimes, early wake-up times, and short sleep in adolescents on school nights.Sleep advances : a journal of the Sleep Research Society · 2025Article
- Epidemiology of sleep patterns and circadian typology in uruguayan children: The contribution of school shifts.Sleep medicine: X · 2024Article
- Greater social jetlag predicts poorer NIH Toolbox crystallized cognitive and academic performance in the Adolescent Brain Cognitive Development (ABCD) study.Chronobiology international · 2024Article
- A longitudinal study of rotating shift type and attention performance of acute and critical care nurses with chronotype as moderator variable.Journal of occupational health · 2024Article
- Time-restricted eating, the clock ticking behind the scenes.Frontiers in pharmacology · 2024Review
- Chronotype delay and sleep disturbances shaped by the Antarctic polar night.Scientific reports · 2023Article
- Article
- A better alignment between chronotype and school timing is associated with lower grade retention in adolescents.NPJ science of learning · 2023Article
- Early morning university classes are associated with impaired sleep and academic performance.Nature human behaviour · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Most adolescents exhibit very late chronotypes and attend school early in the morning, a misalignment that can affect their health and psychological well-being. Here we examine how the interaction between the chronotype and school timing of an individual influences academic performance, studying a unique sample of 753 Argentinian students who were randomly assigned to start school in the morning (07:45), afternoon (12:40) or evening (17:20). Although chronotypes tend to align partially with class time, this effect is insufficient to fully account for the differences with school start time. We show that (1) for morning-attending students, early chronotypes perform better than late chronotypes in all school subjects, an effect that is largest for maths; (2) this effect vanishes for students who attend school in the afternoon; and (3) late chronotypes benefit from evening classes. Together, these results demonstrate that academic performance is improved when school times are better aligned with the biological rhythms of adolescents.
Indexed as
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.