Total suspensions in Philadelphia remained unchanged following the discipline policy reform¶
Claim · All claims
Evidence · 1 study · causalr?·q3
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2021: 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.
q3 i? Total suspensions remained unchanged after the reform, even as suspensions for nonviolent infractions declined. → Johanna Lacoe 2018
Evidence¶
Johanna Lacoe 2018¶
Johanna Lacoe, Matthew P. Steinberg. (2018). Rolling Back Zero Tolerance: The Effect of Discipline Policy Reform on Suspension Usage and Student Outcomes. Peabody Journal of Education, vol. 93, issue 2. https://www.mathematica.org/publications/rolling-back-zero-tolerance-the-effect-of-discipline-policy-reform-on-suspension-usage-and-student doi:10.1080/0161956x.2018.1435047
q3 · i? · causal · r?
Difference-in-differences analysis of the Philadelphia reform reports that "total suspensions remained unchanged" following the policy change. No effect size or test statistic is printed for this null finding; equivalence was not tested.
"however, total suspensions remained unchanged while serious incidents of student misconduct increased"
Discussion¶
Related Claims¶
- District math and English language arts achievement declined in Philadelphia following the discipline policy reform — related
- Philadelphia's 2012-2013 discipline reform produced a modest decline in suspensions for nonviolent infractions in the year of reform — related
- Serious incidents of student misconduct increased in Philadelphia following the discipline policy reform — related
- Truancy rates increased in Philadelphia following the discipline policy reform — related
- Peer outcomes following a district suspension reform varied with school-level implementation — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
philadelphia-reform-total-suspensions-unchanged |
title |
Total suspensions in Philadelphia remained unchanged following the discipline policy reform |
description |
Total suspensions in Philadelphia remained unchanged following the discipline policy reform |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2018 |
recheck_by |
2021 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — johanna-lacoe-2018 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.