Outcome differences between CHSRI new-start and redesigned schools were not statistically significant after accounting for incoming student differences¶
Claim · All claims
Evidence · 1 study · associationalr3·q2
Currency · newest study 2010 · 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? Although new-start schools served students with stronger backgrounds and showed stronger raw outcomes, differences in absences, on-track rates, core GPA, and ACT scores between similar students in new-start versus redesigned CHSRI schools were not large enough to be statistically significant. → Susan Sporte 2010
Evidence¶
Susan Sporte 2010¶
Susan Sporte, Marisa de la Torre. (2010). Chicago High School Redesign Initiative: Schools, Students, and Outcomes. Consortium on Chicago School Research at the University of Chicago, Urban Education Institute. https://consortium.uchicago.edu/publications/chicago-high-school-redesign-initiative-schools-students-and-outcomes
q2 · i? · associational · r3
Comparative analysis adjusting for special education status, age relative to grade, prior mobility, race/ethnicity, and prior achievement. Raw outcomes differed substantially (e.g., freshman absences of 6.0-7.4 days at new-starts versus 21.7-22.6 at redesigned schools in 2004-06), but adjusted differences were not significant.
"while students in the new-start schools did slightly better than similar students in the redesigned schools, these outcome differences were not large enough to be statistically significant"
Discussion¶
Related Claims¶
- CHSRI freshman on-track rates were typically higher than similar students' but the difference was not statistically significant and converged by 2007-08 — related
- CHSRI freshmen were absent about 10 fewer days per year than similar students at similar non-CHSRI schools, a statistically significant gap in every year studied — related
- CHSRI freshmen earned slightly higher core GPAs than similar students, though averages remained below a C — related
- Nearly all CHSRI schools graduated at least as many students as predicted given the students they served — related
- CHSRI students graduated at significantly higher four-year rates than similar students, with differences of 7 to more than 9 percentage points across cohorts — related
- CHSRI juniors' ACT scores were no different from similar students' and remained well below college readiness benchmarks — related
- Schools serving similar students from similar neighborhoods had substantially different absence rates, with over half of school variation unexplained by student backgrounds or prior absences — related
- Rising ninth-grade on-track rates did not negatively affect schools' average ACT scores — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
chsri-new-start-redesigned-no-significant-outcome-differences |
title |
Outcome differences between CHSRI new-start and redesigned schools were not statistically significant after accounting for incoming student differences |
description |
Outcome differences between CHSRI new-start and redesigned schools were not statistically significant after accounting for incoming student differences |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2010 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — susan-sporte-2010 |
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