Highest-performing teachers moved students up 4 to 14 percentile points per school year relative to the average district teacher¶
Claim · All claims
Evidence · 1 study · associationalr2·q2
Currency · newest study 2011 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2016: baselines and conditions change
Subclaims¶
Reading the evidence codes
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the rigour judged within that kind: what each code means.
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q3 i? Depending on district, subject, and grade level, the average highest-performing teacher produced student gains of 4 to 14 percentile points in a school year compared to the average teacher in the district. → Steven Glazerman and Jeffrey Max 2011
Evidence¶
Steven Glazerman and Jeffrey Max 2011¶
Steven Glazerman and Jeffrey Max. (2011). Do Low-Income Students Have Equal Access to the Highest-Performing Teachers? NCEE Evaluation Brief, NCEE 2011-4016. https://ies.ed.gov/ncee/pubs/20114016/pdf/20114016_app.pdf
q2 · i? · associational · r2
Descriptive translation of value-added estimates into percentile units, derived by converting average value-added scores above the 80th percentile cutoff into student-level standard deviations assuming normally distributed scores, as the endnote explains.
"Depending on the district, subject, and grade level in our data, the average highest -performing teacher would move his or her students up by an average of 4 to 14 percentile points in a school year compared to the average teacher in the district."
Discussion¶
Related Claims¶
- Offering $20,000 per teacher filled 90 percent of targeted vacancies in hard-to-staff schools with high-performing teachers across seven districts — related
- Incorporating teachers' revealed comparative advantage into teacher-replacement policy decisions would generate an estimated $3,000 in additional student lifetime earnings per classroom — related
- Teacher impacts on Black students' test scores vary widely, from 0.2 standard deviations in middle school English to 0.5 standard deviations in elementary school math between high- and low-effectiveness teachers — related
- Effective teachers compound their advantage over consecutive years, and low-achieving students are disproportionately assigned to ineffective ones — related
- TTI transfer incentives increased elementary school students' math and reading test scores by an estimated 4 to 10 percentile points — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
highest-performing-teachers-4-to-14-percentile-gains |
title |
Highest-performing teachers moved students up 4 to 14 percentile points per school year relative to the average district teacher |
description |
Highest-performing teachers moved students up 4 to 14 percentile points per school year relative to the average district teacher |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2011 |
recheck_by |
2016 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — steven-glazerman-and-jeffrey-max-2011 |
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