Claims

TFA teachers in grades 1 and 2 had a positive effect on math achievement of 0.16 standard deviations that was almost statistically significant (p-value = 0.054)

Claim · All claims
Evidence · 1 study · causal r? · q3 · i1 small
Currency · newest study 2017 · 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 i1 TFA teachers in grades 1 and 2 had a positive effect on student math achievement of 0.16 standard deviations, about 1.5 additional months of learning, a difference that was almost statistically significant at conventional levels (p-value = 0.054). → Clark 2017

Evidence

Clark 2017

Clark, Melissa A.; Isenberg, Eric; Liu, Albert Y.; Makowsky, Libby; Zukiewicz, Marykate. (2017). Impacts of the Teach For America Investing in Innovation Scale-Up. Princeton, NJ: Mathematica Policy Research. https://www.mathematica.org/publications/impacts-of-the-teach-for-america-investing-in-innovation-scaleup

q3 · i1 · causal · r?

The report states TFA teachers in grades 1 and 2 "had a positive effect on student math achievement." The printed effect size is 0.16 standard deviations, about 1.5 additional months of learning, with p-value = 0.054, just missing conventional significance thresholds.

"Similarly, TFA teachers in grades 1 and 2 had a positive effect on student math achievement of 0.16 standard deviations, or about 1.5 additional months of learning. This difference was almost statistically significant at conventional levels (p-value = 0.054)."

Discussion

Page metadata
Field Value
type claim
id tfa-grades-1-2-math-effect-016-sd-marginal
title TFA teachers in grades 1 and 2 had a positive effect on math achievement of 0.16 standard deviations that was almost statistically significant (p-value = 0.054)
description TFA teachers in grades 1 and 2 had a positive effect on math achievement of 0.16 standard deviations that was almost statistically significant (p-value = 0.054)
status review
evidence_strength weak
newest_evidence 2017
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — clark-2017

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