77% of the lowest 5% achieving schools (spring reading) grow their typical student better than the 30th percentile¶
Claim · All claims
Evidence · 1 study · associationalr2·q2
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2023: 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.
q2 i? Among the lowest 5% of schools by spring reading achievement, 77% grow their typical student better than the 30th growth percentile (about 0.5 standard deviations below the mean). → Andy Hegedus 2018
Evidence¶
Andy Hegedus 2018¶
Andy Hegedus, Ed.D. (2018). Evaluating the Relationships between Poverty and School Performance. NWEA Research Report. https://www.nwea.org/research-data-galleries/poverty-and-school-performance
q2 · i? · associational · r2
Observational analysis of the bottom 5% of schools by spring reading achievement in the MAP Growth school sample. The article reports "77% of the lowest 5% achieving schools based on spring reading achievement grow their typical student better than the 30th percentile (about 0.5 standard deviations below the mean)," suggesting most schools labeled low-performing grow students at or better than slightly below average.
"77% of the lowest 5% achieving schools based on spring reading achievement grow their typical student better than the 30th percentile (about 0.5 standard deviations below the mean)."
Discussion¶
Related Claims¶
- Achievement of the lowest-growth schools varies dramatically, and fall achievement accounts for about 80% of spring achievement versus 14% for growth — related
- MAP Growth cut scores at the 30th percentile of national norms best identify Grade K-8 students in need of intensive intervention in reading and mathematics — related
- Lowest-income schools show more variable growth than highest-income schools, with more schools both below the 50th and above the 82nd growth percentile — related
- About 46% of the lowest 5% achieving schools show the same growth as the highest 5% achieving schools — related
- Massachusetts students overall perform above the national average on screening assessments, with a median national percentile of 58 at EOY and 66 percent growing at average or above-average rates — related
- Growth of schools selected by fall achievement differs by subject: bottom 5% math schools tended to grow worse, while reading showed similar average growth — a broader claim this one bears on
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
77-percent-low-achieving-schools-growth-above-30th-percentile |
title |
77% of the lowest 5% achieving schools (spring reading) grow their typical student better than the 30th percentile |
description |
77% of the lowest 5% achieving schools (spring reading) grow their typical student better than the 30th percentile |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2018 |
recheck_by |
2023 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — andy-hegedus-2018 |
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