Claims

Commercial SAT preparation courses showed no statistically significant effect on SAT scores in a national propensity-score-matched sample (Domingue & Briggs, 2009)

Claim · All claims
Evidence · 1 study · causal r2 · q2 · i1 small
Currency · newest study 2016 · 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 i1 In a quasi-experimental propensity-score-matched comparison of 706 students from the Educational Longitudinal Survey of 2002, participation in commercial SAT preparation courses showed no statistically significant difference on SAT scores (domain average effect size 0.10, improvement index +4). → ACT/SAT Test Preparation and Coaching Programs 2016

Evidence

ACT/SAT Test Preparation and Coaching Programs 2016

ACT/SAT Test Preparation and Coaching Programs. (2016). What Works Clearinghouse Intervention Report, U.S. Department of Education. https://ies.ed.gov/ncee/wwc/InterventionReport/664

q2 · i1 · causal · r2

Propensity score matched comparison of 353 coached and 353 uncoached students from ELS:02 data. The WWC reports SAT Math at effect size 0.13 (+5, p .08) and SAT verbal at effect size 0.08 (+3, p .31), domain average effect size 0.10, +4, not statistically significant; effect sizes were computed from the study's ordinary least squares regression coefficient.

"Domain average for general academic achievement (high school) (Domingue & Briggs, 2009) 0.10 +4 Not statistically significant"

Discussion

Page metadata
Field Value
type claim
id commercial-sat-prep-no-significant-effect-domingue-briggs
title Commercial SAT preparation courses showed no statistically significant effect on SAT scores in a national propensity-score-matched sample (Domingue & Briggs, 2009)
description Commercial SAT preparation courses showed no statistically significant effect on SAT scores in a national propensity-score-matched sample (Domingue & Briggs, 2009)
status review
evidence_strength weak
newest_evidence 2016
generated by process:wiki-ingest on 2026-10-09
trust unverified — no one has confirmed this page's content
sources 1 — actsat-test-preparation-and-coaching-programs-2016

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