Claims

Reading Apprenticeship® shows no effect on vocabulary (effect size 0.00)

Claim · All claims
Evidence · 1 study · quant-synthesis r1 · q3 · i0 negligible
Currency · newest study 2023 · 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 i0 Reading Apprenticeship® showed an effect size of 0.00 on vocabulary (GRADE Vocabulary subtest), with an uncertain effects rating based on one study. → What Works Clearinghouse 2023

Evidence

What Works Clearinghouse 2023

What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2023). Reading Apprenticeship®. https://ies.ed.gov/ncee/wwc/InterventionReport/727

q3 · i0 · quant-synthesis · r1

WWC synthesis of 1 study meeting standards (Somers et al., 2010; 2,255 grade 9 students) using the GRADE Vocabulary subtest; the printed summary is 0.00, improvement index 0, not significant (p>0.99), with identical printed means of 93.30 in both groups.

"Summary for vocabulary: Uncertain effects 0.00 0 No (p>0.99)"

Discussion

Page metadata
Field Value
type claim
id reading-apprenticeship-no-vocabulary-effect
title Reading Apprenticeship® shows no effect on vocabulary (effect size 0.00)
description Reading Apprenticeship® shows no effect on vocabulary (effect size 0.00)
status review
evidence_strength weak
newest_evidence 2023
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 1 — what-works-clearinghouse-2023

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