In the 2008-2009 school year, 39 percent of DCPS principals (51 individuals) did not return, as part of Chancellor Rhee's replacement reforms following mayoral control¶
Claim · All claims
Evidence · 1 study · causalr2·q2
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2017: local conditions change 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? For the 2008-2009 school year, 39 percent of DCPS principals (51 individuals) did not return, with more replaced in following years, as part of reforms launched after the 2007 Public Education Reform Amendment Act established mayoral control. → Elias Walsh 2014
Evidence¶
Elias Walsh 2014¶
Elias Walsh, Dallas Dotter. (2014). The Impact of Replacing Principals on Student Achievement in DC Public Schools (In Focus Brief). Washington, DC: Mathematica Policy Research. https://www.mathematica.org/publications/in-focus-brief-the-impact-of-replacing-principals-on-student-achievement-in-dc-public-schools
q2 · i? · causal · r2
Descriptive background from the brief on the scale of principal replacement under Chancellor Rhee, following the 2007 Public Education Reform Amendment Act that established mayoral control of DCPS. The printed figures are 39 percent and 51 individuals.
"For the 2008–2009 school year, 39 percent of the principals in the school district—51 individuals—did not return, and more were replaced in the following years."
Discussion¶
Related Claims¶
- It took three years for new DCPS principals to achieve measurable achievement gains, with no evidence of even temporary declines — related
- After three years with a new principal, the average DCPS student's reading achievement increased by 4 percentile points (0.09 standard deviations) relative to retained-principal comparison schools — related
- New principals' math achievement gains followed a similar trend to reading but were smaller — related
- Achievement gains under new principals were larger and happened faster in DCPS middle schools than in elementary schools — related
- For DCPS students in grades 6 to 8, achievement gains under new principals were larger and statistically significant in both math and reading — related
- The 2007 DC reforms aimed to improve student achievement by hiring and retaining higher quality teachers and providing families more public school choices — related
- The report compares the effectiveness of teachers entering and exiting DCPS since IMPACT against core teachers who remained from 2008–2009 through 2012–2013 — related
- Decentralization and accountability acted as sorting mechanisms stratifying schools by initial capacity to respond — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
dcps-39-percent-principals-did-not-return-2008-09 |
title |
In the 2008-2009 school year, 39 percent of DCPS principals (51 individuals) did not return, as part of Chancellor Rhee's replacement reforms following mayoral control |
description |
In the 2008-2009 school year, 39 percent of DCPS principals (51 individuals) did not return, as part of Chancellor Rhee's replacement reforms following mayoral control |
status |
review |
evidence_strength |
weak |
newest_evidence |
2014 |
recheck_by |
2017 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — elias-walsh-2014 |
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