Claims

Missouri's Teacher Career Ladder program has at most a very small positive effect on student test scores

Claim · All claims
Evidence · 2 studies · 2 causal r? · q2
Currency · newest study 2009 · checked against its sources 2026-10-20 (automated, 2 of 2 entries) · 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? If the Career Ladder has a positive effect on test scores, it is likely to be very small, with estimated effects ranging from small positive effects to no effect. → Kevin Booker 2008

q2 i? Estimated effects of the Missouri Career Ladder program on district math and reading achievement range from small positive effects to no effect in both subjects. → Kevin Booker 2009

Evidence

Kevin Booker 2008

Kevin Booker, Steven Glazerman. (2008). Missouri's Teacher Career Ladder Program. Nashville, TN: National Center on Performance Incentives Conference. https://www.mathematica.org/publications/missouris-teacher-career-ladder-program

q2 · i? · causal · r?

Quasi-experimental matched comparison of 524 Missouri school districts over a nine-year period, using longitudinal data on district math and reading scores; "estimated effects range from small positive effects to no effect."

"The paper compares achievement levels in participating districts with those of a matched group of nonparticipating districts. The estimated effects range from small positive effects to no effect."

Kevin Booker 2009

Kevin Booker, Steven Glazerman. (2009). Does the Missouri Teacher Career Ladder Program Raise Student Achievement? Washington, DC: Mathematica Policy Research. https://www.mathematica.org/publications/does-the-missouri-teacher-career-ladder-program-raise-student-achievement

q2 · i? · causal · r?

Statewide longitudinal analysis of district math and reading scores for 524 Missouri school districts over a nine-year period. The article reports that the estimated effects of the Career Ladder program "range from small positive effects to no effect in both math and reading." No effect sizes or test statistics are printed on the page.

"The estimated effects of the Career Ladder program range from small positive effects to no effect in both math and reading."

Discussion

Page metadata
Field Value
type claim
id career-ladder-missouri-small-or-no-achievement-effect
aliases missouri-career-ladder-small-positive-to-no-effect
title Missouri's Teacher Career Ladder program has at most a very small positive effect on student test scores
description Missouri's Teacher Career Ladder program has at most a very small positive effect on student test scores
status review
evidence_strength moderate
newest_evidence 2009
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 2 — kevin-booker-2008, kevin-booker-2009

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