Claims

COVID-19 learning deficits arose early in the pandemic and have neither closed nor substantially widened since then

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r3 · q2–q3
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person · recheck by 2028: baselines and conditions change

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i? The magnitude of learning deficits shows no significant change over months since the pandemic onset (βmonths = −0.00, P = 0.097), indicating deficits opened early and persisted. → Bastian A. Betthäuser 2023

Evidence

Bastian A. Betthäuser 2023

Bastian A. Betthäuser, Anders M. Bach-Mortensen & Per Engzell. (2023). A systematic review and meta-analysis of the evidence on learning during the COVID-19 pandemic. Nature Human Behaviour. https://doi.org/10.1038/s41562-022-01506-4

q3 · i? · quant-synthesis · r3

Bivariate ordinary least squares regression of deficit magnitude on measurement date across 291 estimates, with standard errors clustered at the study level (42 clusters), shown in Fig. 4. The slope is not significantly different from zero (P = 0.097).

"We find no evidence that the slope coefficient is different from zero (βmonths = −0.00, t(41) = −7.30, two-tailed P = 0.097, 95% CI −0.01 to 0.00)."

Bastian A. Betthäuser 2023 (2)

Bastian A. Betthäuser, Anders M. Bach-Mortensen & Per Engzell. (2023). A systematic review and meta-analysis of the evidence on learning during the COVID-19 pandemic. Nature Human Behaviour. https://doi.org/10.1038/s41562-022-01506-4

q2 · i? · quant-synthesis · r3

Supplementary within-country analyses for the United States, the UK and the Netherlands replicate the persistent-deficit pattern. The authors caution that estimates are based on distinct samples of students, not followed cohorts.

"As shown in Supplementary Fig. 8, the pattern of persistent learning deficits also emerges within each of the three countries for which we have a relatively large number of estimates at different timepoints: the United States, the UK and the Netherlands."

Discussion

Page metadata
Field Value
type claim
id covid-learning-deficits-early-onset-persistence
title COVID-19 learning deficits arose early in the pandemic and have neither closed nor substantially widened since then
description COVID-19 learning deficits arose early in the pandemic and have neither closed nor substantially widened since then
status review
evidence_strength moderate
newest_evidence 2023
recheck_by 2028
generated by process:wiki-ingest on 2026-10-15
trust unverified — no one has confirmed this page's content
sources 2 — bastian-a-betthäuser-2023, bastian-a-betthäuser-2023-2

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