Claims

The 2025 MAP Growth norming sample showed no systematic differences from the U.S. public school target population on selected school-level correlates, with no standardized mean difference reaching the 0.2 threshold

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person · recheck by 2028: tool and model accuracy changes quickly

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.

q2 i? Comparing the NWEA analytic sample to the NCES-CCD population on urbanicity, charter status, FRPL eligibility, race/ethnicity composition, staffing, and region, no characteristic met the 0.2 SMD threshold for a small effect. → 2025 MAP Growth Norms Technical Manual 2025

Evidence

2025 MAP Growth Norms Technical Manual 2025

2025 MAP Growth Norms Technical Manual. (2025). HMH Education Company / NWEA. https://www.nwea.org/research/publication/2025-map-growth-norms-technical-manual/

q2 · i? · associational · r2

Section 2.3 reports a representativeness analysis (Table 2.5) comparing the sample (N=29,720 schools) to the CCD population (N=102,268) on school-level correlates; the manual states "Noneofthecharacteristicsmetthe0.2 threshold for a “small effect”". Largest printed SMDs include 0.194 (East North Central) and -0.146 (Pacific).

"Noneofthecharacteristicsmetthe0.2 threshold for a “small effect” indicating there are no systematic differences between thenormingsampleandthetargetpopulation,supportingtheMAPGrowthnormsaspopulationnorms."

Discussion

Page metadata
Field Value
type claim
id map-growth-2025-norms-sample-representativeness-no-smd-above-02
title The 2025 MAP Growth norming sample showed no systematic differences from the U.S. public school target population on selected school-level correlates, with no standardized mean difference reaching the 0.2 threshold
description The 2025 MAP Growth norming sample showed no systematic differences from the U.S.
status review
evidence_strength moderate
newest_evidence 2025
recheck_by 2028
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — 2025-map-growth-norms-technical-manual-2025

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