Children from low-SES families were more negatively affected by COVID-19 school closures than children from high-SES families¶
Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesisr1·q3·i0negligible
Currency · newest study 2021 · checked against its sources 2026-10-20 (automated, 2 of 2 entries) · 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 i? Children from families with low socioeconomic status were more affected by school closures than children from high-SES families, with one study (Engzell et al., Netherlands) reporting +60% learning loss in low-SES students, and another (Gore et al., Australia) a grade-by-SES interaction. → Hammerstein Svenja 2021
q2 i0 One study found an interaction between grade and SES: younger children from low school-level-SES schools lost 0.16 SD while younger children from medium school-level-SES schools gained 0.15 SD. → Hammerstein Svenja 2021 (2)
Evidence¶
Hammerstein Svenja 2021¶
Hammerstein Svenja, König Christoph, Dreisörner Thomas, Frey Andreas. (2021). Effects of COVID-19-Related School Closures on Student Achievement-A Systematic Review. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2021.746289
q3 · i? · review · r3
Review synthesis of differential effects; Table 1 records "+60% learning loss in low-SES students" (Engzell et al., Netherlands, n = 350,000) and larger effects in low-SES students (Maldonado and De Witte, Belgium). No standardized effect size is printed for this contrast, so impact is coded i? (magnitude not reported), which does not mean no impact. The grade-by-SES interaction it also records comes from a separate Australian study (Gore et al., 2021; see the next entry), not from the Engzell sample. The review cites lower access to remote learning, less school learning assistance, and less learning time for low-SES children.
"Second, children from families with a low socioeconomic status (SES) were more affected than children from families with a high SES were (Maldonado and De Witte, 2020; Engzell et al., 2021)."
Hammerstein Svenja 2021 (2)¶
Hammerstein Svenja, König Christoph, Dreisörner Thomas, Frey Andreas. (2021). Effects of COVID-19-Related School Closures on Student Achievement-A Systematic Review. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2021.746289
q3 · i0 · quant-synthesis · r1
Review synthesis reporting the grade-by-SES interaction from the Australian study (Gore et al.), with printed effect sizes d = 0.16 SD loss for younger children in low school-level-SES schools versus d = 0.15 SD gain for those in medium school-level-SES schools; both fall below d = 0.2.
"one study reported an interaction between grade and SES, that is, for younger children from schools with low school-level SES, learning losses of 0.16 SD were found, while younger children from schools with medium school-level SES experienced learning gains of 0.15 SD (Gore et al., 2021)."
Studies bearing on this claim¶
Does remote or disrupted schooling widen the gap for learners from low-income families? This table gathers the studies behind this claim and the 7 narrower claims that bear on it: 7 distinct studies (6 associational, 1 review), q2–q3, 1 of 7 with an effect size coded. One row per study, codes as each entry records them; no effect is averaged and no verdict is drawn. Built by scripts/synthesize_claim.py from eval/synthesis/; a row that looks wrong is fixed on the claim it comes from.
Discussion¶
Learner Variables¶
- Socioeconomic Status — moderator: an instructional effect differs by group
Related Claims¶
- Low-performing students were more affected by closures in mathematics while high-performing students were more affected in reading, and low-performing students benefited more from systematic online learning — related
- Students in The Netherlands lost on average 3.16 percentile points (0.08 SD) in achievement during the 8-week COVID-19 lockdown — related
- Within-family fixed-effects analysis estimates the learning-loss gap between educational backgrounds at 60% — related
- Achievement declines from 2019 to 2022 were larger for students in high-poverty schools than in low-poverty schools in grades 1–2 — possibly the same claim (merge candidate)
- Achievement gaps between low-poverty and high-poverty elementary schools grew by .10–.20 SD, primarily during 2020–2021 — possibly the same claim (merge candidate)
- Within-family fixed-effects analysis estimates the learning-loss gap between educational backgrounds at 60% — possibly the same claim (merge candidate)
- Learning losses were 40% larger than average among students in the two lowest parental-education categories — a narrower finding that bears on this claim
- Evidence of academic rebounding in 2021-22 appeared across all school-poverty levels — related
- Learning loss varied considerably by school, with some schools seeing slides of 10 percentile points or more and others recording no losses or small gains — related
- Socio-economic inequality in learning increased during the pandemic for most estimates, across subjects, grades and pandemic stages — a broader claim this one bears on
- Kindergarten closures hit children in low-SES schools hardest in basic counting and numeracy skills (d = 0.2 in 2020; d = 0.3 in 2021), widening inequalities — a narrower finding that bears on this claim
- COVID-19 widened the socio-economic performance gap on average, deteriorating more among disadvantaged students, significantly in mathematics and science — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
covid-closures-low-ses-students-more-affected |
title |
Children from low-SES families were more negatively affected by COVID-19 school closures than children from high-SES families |
description |
Children from low-SES families were more negatively affected by COVID-19 school closures than children from high-SES families |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2021 |
source_checked |
2026-10-20 |
generated |
by process:wiki-ingest on 2026-10-15 |
trust |
unverified — no one has confirmed this page's content |
sources |
2 — hammerstein-svenja-2021, hammerstein-svenja-2021-2 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.