Claims

Year 3 students in low-ICSEA schools achieved significantly less mathematics growth in 2020, equivalent to two months less than the 2019 cohort

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i0 negligible
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person · recheck by 2026: 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 i0 Year 3 students in low-ICSEA schools (ICSEA < 950) achieved significantly less growth in mathematics in 2020 relative to 2019 (d = -0.16, p = 0.0331), equivalent to two months less growth. → Gore 2021

Evidence

Gore 2021

Gore, J., Miller, A., Fray, L., Harris, J., & Prieto, E. (2021). The impact of COVID-19 on student learning in New South Wales primary schools: an empirical study. The Australian Educational Researcher, 48, 605-637. https://doi.org/10.1007/s13384-021-00436-w

q3 · i0 · causal · r2

Linear mixed models with matched ICSEA subgroups found Year 3 low-ICSEA students' 2020 mathematics growth was significantly lower than 2019 (d = -0.16, 95% CI = -0.31, -0.01, p = 0.0331). The study reports this as "equivalent to two months" less growth using EEF standards.

"Year 3 students in low-ICSEA schools (ICESA < 950) achieved significantly less growth, equivalent to two months, in mathematics relative to the 2019 cohort (d = -0.16; 95% CI = -0.31, -0.01; p = 0.0331)"

Discussion

Page metadata
Field Value
type claim
id covid19-year3-low-icsea-two-months-less-math-growth
title Year 3 students in low-ICSEA schools achieved significantly less mathematics growth in 2020, equivalent to two months less than the 2019 cohort
description Year 3 students in low-ICSEA schools achieved significantly less mathematics growth in 2020, equivalent to two months less than the 2019 cohort
status review
evidence_strength moderate
newest_evidence 2021
recheck_by 2026
generated by process:wiki-ingest on 2026-10-16
trust unverified — no one has confirmed this page's content
sources 1 — gore-2021

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