Claims

The evidence base for Read Well® with English language learners is small, resting on one randomized controlled trial of 34 students in one school

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3
Currency · newest study 2010 · 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 i? The WWC considers the extent of evidence for Read Well® to be small for both reading achievement and English language development for English language learners. → Read Well® 2010

Evidence

Read Well® 2010

Read Well®. (2010). WWC Intervention Report. U.S. Department of Education, What Works Clearinghouse. http://store.cambiumlearning.com/resource.aspx?page=ProgramOverview&site=sw&parentId=019005451

q3 · i? · causal · r2

The WWC's extent-of-evidence categorization (Appendix A5) lists one study, one school, and 34 students in each domain, below the threshold of at least two studies, two schools, and 350 students or 14 classrooms for a medium-to-large rating.

"The WWC considers the extent of evidence for Read Well ® t o be small for both reading achievement and English language development for English language learners."

Read Well® 2010 (2)

Read Well®. (2010). WWC Intervention Report. U.S. Department of Education, What Works Clearinghouse. http://store.cambiumlearning.com/resource.aspx?page=ProgramOverview&site=sw&parentId=019005451

q3 · i? · causal · r2

Of five reviewed studies, only Frasco (2008) met WWC evidence standards; the other four do not meet evidence standards or eligibility screens, including one excluded because the intervention and comparison groups were not shown to be equivalent at baseline.

"Five studies reviewed by the WWC investigated the effects of Read Well ® on English language learners. One study (Frasco, 2008) is a randomized controlled trial that meets WWC evidence standards."

Discussion

Page metadata
Field Value
type claim
id read-well-ell-evidence-base-small-one-rct
title The evidence base for Read Well® with English language learners is small, resting on one randomized controlled trial of 34 students in one school
description The evidence base for Read Well® with English language learners is small, resting on one randomized controlled trial of 34 students in one school
status review
evidence_strength weak
newest_evidence 2010
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 2 — read-well-2010, read-well-2010-2

Frontmatter is the page's machine-readable record — see the Schema & Guide.