A quasi-experimental evaluation found Perry Street students improved significantly more during turnaround than they would have at other traditional or charter schools¶
Claim · All claims
Evidence · 1 study · causalr?·q3
Currency · newest study 2019 · 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.
q3 i? Students attending Perry Street improved significantly more academically during the turnaround period than counterfactual comparison students at other schools. → Evan 2019
Evidence¶
Evan 2019¶
Evan, A. (2019). From the brink of closure: Key factors in one charter school's successful turnaround. San Francisco, CA: WestEd. https://dcpcsb.egnyte.com/dl/hdsUO9pDbh/
q3 · i? · causal · r?
A quasi-experimental impact study conducted by WestEd compared Perry Street students' achievement during the turnaround to similar students at other DC traditional and charter schools; the report states the difference was significant but prints no effect size.
"students attending Perry Street not only improved academically during the turnaround period, but they improved significantly more at Perry Street than they would have if they had attended a different traditional or charter school during that time."
Discussion¶
Related Claims¶
- School culture changes during turnaround coincided with suspension rates falling from roughly one in four students suspended per year to zero suspensions — related
- Perry Street moved from Tier III (lowest performing) to Tier I (highest performing) on DC's Performance Management Framework over five years of turnaround — related
- Talent-system reforms, including an experience-based salary scale and earlier recruitment, coincided with retention of over 90 percent of effective teachers — related
- Nonexperimental methods incorporating pre-treatment outcome measures can replicate experimental ITT impact estimates when control-group crossover occurs — related
- The Kauffman School evaluation used a matched comparison group design to estimate impacts on achievement, attendance, and suspensions — related
- Escaping a bottom-tier school raises four-year graduation rates, by 10 percentage points for top-tier schools and 3 for mid-tier schools — related
- KIPP charter middle schools produce positive, statistically significant test-score effects in reading, math, science, and social studies — related
- The Uncommon Schools whole-school model, typically built from the earliest grades in new schools, produced substantial positive achievement effects when applied in a turnaround setting — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
perry-street-quasi-experimental-achievement-gains |
title |
A quasi-experimental evaluation found Perry Street students improved significantly more during turnaround than they would have at other traditional or charter schools |
description |
A quasi-experimental evaluation found Perry Street students improved significantly more during turnaround than they would have at other traditional or charter schools |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2019 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — evan-2019 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.