Evidence map›Paper›PMID 34603162›Full record

SynthesisFrontiers in psychology2021

Effects of COVID-19-Related School Closures on Student Achievement-A Systematic Review.

Svenja Hammerstein, Christoph König, Thomas Dreisörner, Andreas Frey

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in psychology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 124 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed, 6 pooled it
54.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

124 citing papers in PubMed, 6 syntheses or guidelines pooled it, 437 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. SARS-CoV-2 Circulation in the School Setting: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2022
    Pooled it
  5. Pooled it
  6. Pooled it
  7. Trial
  8. Article
  9. Article
  10. Article
  11. Exploring coping strategies among adolescents during COVID-19 and war displacement: A qualitative analysis comparing two crisis settings.Journal of research on adolescence : the official journal of the Society for Research on Adolescence · 2026
    Article
  12. Article
  13. Investigating Longitudinal Trajectories of COVID-19 Disruption: Methodological Challenges and Recommendations.Prevention science : the official journal of the Society for Prevention Research · 2026
    Article
  14. Article
  15. Article
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  17. Review
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  20. Pandemic Performance Measures of Resilience for Healthcare and Education in the Netherlands.The International journal of health planning and management · 2025
    Article

64 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 2 countries.

Svenja HammersteinGoethe University Frankfurt, Frankfurt, Germany.
Christoph KönigGoethe University Frankfurt, Frankfurt, Germany.
Thomas DreisörnerGoethe University Frankfurt, Frankfurt, Germany.
Andreas FreyGoethe University Frankfurt, Frankfurt, Germany.
Goethe University Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The COVID-19 pandemic led to numerous governments deciding to close schools for several weeks in spring 2020. Empirical evidence on the impact of COVID-19-related school closures on academic achievement is only just emerging. The present work aimed to provide a first systematic overview of evidence-based studies on general and differential effects of COVID-19-related school closures in spring 2020 on student achievement in primary and secondary education. Results indicate a negative effect of school closures on student achievement, specifically in younger students and students from families with low socioeconomic status. Moreover, certain measures can be identified that might mitigate these negative effects. The findings are discussed in the context of their possible consequences for national educational policies when facing future school closures.

Indexed as

COVID-19learning lossschool closurestudent achievementsystematic review

Identifiers

PMID34603162
PMCPMC8481663
OpenAlexW3172046965

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.