Claims

Mathematica designed a method to identify effective schools for a consortium of 99 charter schools in 18 states and the District of Columbia in the project's first year.

Claim · All claims
Evidence · 1 study · design r1 · q1
Currency · newest study 2008 · checked against its sources 2026-10-15 (automated, 1 of 1 entry) · not reviewed by a person · overdue for a recheck since 2011: 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.

q1 i? In the first year of the project, Mathematica applied a designed method to identify effective schools for a 99-school charter consortium spanning 18 states and the District of Columbia. → Kevin Booker 2008

Evidence

Kevin Booker 2008

Kevin Booker, Duncan Chaplin, Eric Isenberg. (2008). Measuring Charter School Effectiveness Across States. Washington, DC: Mathematica Policy Research. https://www.mathematica.org/publications/measuring-charter-school-effectiveness-across-states

q1 · i? · design · r1

Descriptive report abstract stating the scope of the identification method: a consortium of 99 charter schools across 18 states and the District of Columbia, measured during the project's first year. The page prints no effect sizes or performance statistics.

"This report presents the method used to identify effective schools for a consortium of 99 charter schools in 18 states and the District of Columbia during the first year of this project."

Discussion

Page metadata
Field Value
type claim
id charter-consortium-effective-school-identification-method
title Mathematica designed a method to identify effective schools for a consortium of 99 charter schools in 18 states and the District of Columbia in the project's first year.
description Mathematica designed a method to identify effective schools for a consortium of 99 charter schools in 18 states and the District of Columbia in the project's first year.
status review
evidence_strength weak
newest_evidence 2008
source_checked 2026-10-15
recheck_by 2011
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — kevin-booker-2008

Frontmatter is the page's machine-readable record — see the Schema & Guide.