Average fall 2021 math scores in Grades 3–8 were .20–.27 SD lower than same-grade peers' fall 2019 scores¶
Claim · All claims
Evidence · 1 study · associationalr?·q3
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person · recheck by 2027: 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? Math achievement in Grades 3–8 in fall 2021 declined by .20–.27 SD relative to fall 2019 same-grade peers; the article prints this SD decline but no standardized effect-size statistic, so no magnitude code is assigned. → Megan Kuhfeld 2022
Evidence¶
Megan Kuhfeld 2022¶
Megan Kuhfeld, James Soland, Karyn Lewis. (2022). Test score patterns across three COVID-19-impacted school years. Educational Researcher. https://doi.org/10.3102/0013189X221109178
q3 · i? · associational · r?
Large-scale observational analysis of test scores from 5.4 million U.S. students in Grades 3–8 tracking pandemic achievement changes; the study reports math scores were ".20–.27 standard deviation (SD) lower" relative to fall 2019 same-grade peers, with no further effect-size statistic printed.
"Average math test scores in the fall of 2021 in Grades 3–8 were .20–.27 standard deviation (SD) lower relative to same-grade peers in the fall of 2019"
Discussion¶
Related Claims¶
- Average fall 2021 reading scores in Grades 3–8 were .09–.18 SD lower than same-grade peers' fall 2019 scores — related
- Students in grades 3-8 made reading and math gains in 2020-21 but ended the year with lower achievement than in a typical year, with larger declines in math than in reading — related
- Fall 2020 math achievement was 5 to 10 percentile points lower than pre-COVID-19 performance by same-grade students — related
- The 2020 COVID-19 school closures caused a decrease in Flemish grade 6 school-average mathematics scores of roughly 0.19 standard deviations relative to previous cohorts — 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
- The study tracked the achievement gap between COVID-year student cohorts and their pre-pandemic peers — related
- Covid-19 school closures depressed student achievement on average by about 0.19 standard deviations — related
- One year or more after the first lockdown, students had not recovered the learning deficits caused by Covid-19 school closures — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
covid-math-decline-020-027-sd-grades-3-8 |
title |
Average fall 2021 math scores in Grades 3–8 were .20–.27 SD lower than same-grade peers' fall 2019 scores |
description |
Average fall 2021 math scores in Grades 3–8 were .20–.27 SD lower than same-grade peers' fall 2019 scores |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2022 |
recheck_by |
2027 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — megan-kuhfeld-2022 |
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