MAP Growth reliability coefficients average about 0.95, with lower values in Science and early grades and stronger test-retest reliability over shorter intervals¶
Claim · All claims
Evidence · 1 study · designr2·q2
Currency · newest study 2026 · not yet checked against its sources · 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.
q2 i? Across subjects and grades, reliability coefficients are generally high and average about 0.95, with slightly lower values in Science and early grades. → MAP Growth Technical Report for 2024–2025 2026
q2 i? Test-retest reliability is stronger for shorter intervals (winter–spring) than longer intervals (fall–spring). → MAP Growth Technical Report for 2024–2025 2026
Evidence¶
MAP Growth Technical Report for 2024–2025 2026¶
MAP Growth Technical Report for 2024–2025. (2026). HMH Education Company. https://www.nwea.org/research/publication/map-growth-technical-report/
q2 · i? · design · r2
The report's reliability chapter summary reports marginal (IRT internal consistency) and test-retest reliability for operational 2024–2025 test events, stating coefficients "average about 0.95." Reliability coefficients are printed but no standardized effect size is reported.
"Across subjects and grades, reliability coefficients are generally high and average about 0.95, with slightly lower values in Science and early grades. Test-retest reliability is stronger for shorter intervals (winter–spring) than longer intervals (fall–spring)."
Discussion¶
Related Claims¶
- Linking studies predict proficiency on state summative assessments from MAP Growth scores — related
- Spanish Math and Reading scores show high marginal reliability and moderate-to-strong test-retest stability, lowest for fall–spring and kindergarten — related
- Measurement precision is strongest for students in the middle of the Spanish score distribution, with CSEM near the 3.3 RIT target — related
- Marginal reliabilities of MAP Growth winter scores are comparable across engines and all in the 0.90s, with CBE showing slightly higher precision (lower SEM) — a narrower finding that bears on this claim
- Marginal reliabilities for Spanish MAP Growth Reading are in the 0.90s across all grades — a narrower finding that bears on this claim
- Spanish MAP Growth Reading test-retest reliability ranges from 0.50 at Grade K to 0.83 at Grade 5, with no estimate for Grades 6–8 — a narrower finding that bears on this claim
- Fall 2020 MAP Growth tests showed high levels of marginal reliability across all grades in both remote and in-person administration — a narrower finding that bears on this claim
- Between-term score correlations are moderate and lowest for Phonological Awareness — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
map-growth-reliability-095-subject-and-interval-variation |
title |
MAP Growth reliability coefficients average about 0.95, with lower values in Science and early grades and stronger test-retest reliability over shorter intervals |
description |
MAP Growth reliability coefficients average about 0.95, with lower values in Science and early grades and stronger test-retest reliability over shorter intervals |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2026 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — map-growth-technical-report-for-20242025-2026 |
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