Claims

Self-reported test preparation showed no significant difference in ACT composite scores in a national sample (Scholes & Lain, 1997, Experiment 2)

Claim · All claims
Evidence · 1 study · review r3 · q2 · i0 negligible
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 i0 In a comparison of 64,567 students who retook the ACT, students self-reporting a test preparation course did not differ significantly from students reporting no test preparation on ACT composite scores (effect size 0.02, improvement index +1). → 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 · i0 · review · r3

Comparison using a national database of ACT takers who retested between October 1, 1994 and September 20, 1995; 3,071 self-reported preparers versus 61,496 non-preparers. The WWC row reports intervention mean 21.30 (SD 4.50) versus comparison 21.20 (SD 4.50), effect size 0.02, improvement index +1, p .23 — not statistically significant.

"ACT composite High school students 64,567 21.30 (4.50) 21.20 (4.50) 0.10 0.02 +1 .23"

Discussion

Page metadata
Field Value
type claim
id self-reported-act-prep-no-significant-difference-scholes-lain
title Self-reported test preparation showed no significant difference in ACT composite scores in a national sample (Scholes & Lain, 1997, Experiment 2)
description Self-reported test preparation showed no significant difference in ACT composite scores in a national sample (Scholes & Lain, 1997, Experiment 2)
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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