Claims

The negative effect of COVID remote learning was largest among lower primary low-SES students, reaching 25, 20 and 33 points (d = 0.25, 0.20, 0.33) in mathematics, reading and science by autumn 2021

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i1 small
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

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 i1 Among low-SES schools, lower primary students were more affected than upper primary students, with the gap growing significantly to 25 points in mathematics, 20 in reading and 33 in science (d = 0.25, 0.20, 0.33) versus 10 points (d = 0.1) among upper graders. → Gyöngyvér Molnár & Zoltán Hermann 2023

Evidence

Gyöngyvér Molnár & Zoltán Hermann 2023

Gyöngyvér Molnár & Zoltán Hermann. (2023). Short- and long-term effects of COVID-related kindergarten and school closures on first- to eighth-grade students' school readiness skills and mathematics, reading and science learning. Learning and Instruction, 83, 101706. https://doi.org/10.1016/j.learninstruc.2022.101706

q3 · i1 · causal · r2

SES-grouped regression analysis of Grades 2–8 learning loss by domain (Fig. 7). The article reports the lower-primary low-SES loss in autumn 2021 as equal to 78, 113 and 105 days of development in mathematics, reading and science, equal to or exceeding the 19 weeks of mandated remote learning.

"This difference was about ten points on average after the first wave (three months) of remote learning, but increased significantly (see Appendix 5) to 25 points in mathematics, 20 points in reading and 33 points in science (d = 0.25, 0.20 and 0.33, respectively) among lower graders and to 10 points on average (d = 0.1) among upper graders at a distance of one school year."

Discussion

Page metadata
Field Value
type claim
id lower-primary-low-ses-largest-loss
title The negative effect of COVID remote learning was largest among lower primary low-SES students, reaching 25, 20 and 33 points (d = 0.25, 0.20, 0.33) in mathematics, reading and science by autumn 2021
description The negative effect of COVID remote learning was largest among lower primary low-SES students, reaching 25, 20 and 33 points (d = 0.25, 0.20, 0.33) in mathematics, reading and science by autumn 2021
status review
evidence_strength moderate
newest_evidence 2023
generated by process:wiki-ingest on 2026-10-23
trust unverified — no one has confirmed this page's content
sources 1 — gyöngyvér-molnár-zoltán-hermann-2023

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