Claims

A larger shock halving grade 3 learning leaves the cohort 1.5 years behind by grade 10, with more than 80 percent of in-school children learning nothing

Claim · All claims
Evidence · 1 study · theoretical r3 · q1
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.

q1 i? Halving grade 3 learning gains produces 1.5 years less grade 10 learning and raises the share of in-school children outside the range of instruction to more than 80 percent. → Kaffenberger 2021

Evidence

Kaffenberger 2021

Kaffenberger, Michelle. (2021). Modelling the long-run learning impact of the Covid-19 learning shock: Actions to (more than) mitigate loss. International Journal of Educational Development. https://doi.org/10.1016/j.ijedudev.2020.102326

q1 · i? · theoretical · r3

Second loss scenario in the same calibrated PPF simulation, reducing grade 3 gains by one-half to reflect closure plus learning regression. The article reports the cohort "has gained 1.5 years less learning" than the no-shock counterfactual.

"In grade 10, today's grade 3 cohort has gained 1.5 years less learning than if the shock had not occurred."

Discussion

Page metadata
Field Value
type claim
id grade-3-half-shock-1-5-year-loss
title A larger shock halving grade 3 learning leaves the cohort 1.5 years behind by grade 10, with more than 80 percent of in-school children learning nothing
description A larger shock halving grade 3 learning leaves the cohort 1.5 years behind by grade 10, with more than 80 percent of in-school children learning nothing
status review
evidence_strength weak
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 — kaffenberger-2021

Frontmatter is the page's machine-readable record — see the Schema & Guide.