Claims

Success Boston Coaching has potentially positive effects on academic achievement, with a significant effect in one study and an indeterminate effect in the other

Claim · All claims
Evidence · 1 study · quant-synthesis r2 · q2
Currency · newest study 2020 · 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? Across the two studies, the outcome average improvement index on cumulative GPA was +4, but the effect was statistically significant in only one of the two studies. → What Works Clearinghouse 2020

Evidence

What Works Clearinghouse 2020

What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2020). Success Boston Coaching (WWC 2021-001). https://ies.ed.gov/ncee/wwc/InterventionReport/708

q2 · i? · quant-synthesis · r2

WWC synthesis of cumulative grade point average outcomes from two QED studies totaling 5,543 students, with an outcome average improvement index of +4; the 2019 study's GPA effect was not statistically significant (p = 0.82). No effect size is printed in the quoted finding sentence.

"The WWC determined that one study that meets WWC group design standards with reservations showed evidence of a positive and statistically significant effect of Success Boston Coaching on academic achievement (Linkow et al., 2017), and one study that meets WWC group design standards with reservations showed evidence of an indeterminate effect of Success Boston Coaching on academic achievement (Linkow et al., 2019)."

Discussion

Page metadata
Field Value
type claim
id success-boston-coaching-potentially-positive-academic-achievement
title Success Boston Coaching has potentially positive effects on academic achievement, with a significant effect in one study and an indeterminate effect in the other
description Success Boston Coaching has potentially positive effects on academic achievement, with a significant effect in one study and an indeterminate effect in the other
status review
evidence_strength mixed
newest_evidence 2020
generated by process:wiki-ingest on 2026-10-09
trust unverified — no one has confirmed this page's content
sources 1 — what-works-clearinghouse-2020

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