Claims

Reading Recovery has potentially positive effects on comprehension, with mixed findings across two trials

Claim · All claims
Evidence · 1 study (2 entries) · causal r3 · q3
Currency · newest study 2013 · 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? Two RCTs reported findings in the comprehension domain—one statistically significant positive effect (vocabulary) and one indeterminate effect—with an average improvement index of +14 percentile points. → Reading Recovery® 2013

Evidence

Reading Recovery® 2013

Reading Recovery®. (2013). What Works Clearinghouse Intervention Report, Beginning Reading. Updated July 2013. http://www.readingrecovery.org

q3 · i? · review · r3

In the vocabulary development construct, the 1988 RCT showed a positive and statistically significant effect on the Reading Vocabulary subtest of the CTBS. Table 1 reports an average comprehension improvement index of "+14" (range +6 to +26) across two studies (145 students); no standardized effect size is printed, so impact is null.

"Pinnell, DeFord, & Lyons (1988) found, and the WWC confirmed, a positive and statistically significant effect of Reading Recovery® on the Reading Vocabulary subtest of the CTBS."

Reading Recovery® 2013 (2)

Reading Recovery®. (2013). What Works Clearinghouse Intervention Report, Beginning Reading. Updated July 2013. http://www.readingrecovery.org

q3 · i? · causal · r3

A null reading comprehension result: the 2005 RCT found no statistically significant or substantively important effect on the Degrees of Reading Power Test; equivalence was not established, only no detected effect.

"Schwartz (2005) reported neither a statistically significant nor a substantively important effect of Reading Recovery® on the Degrees of Reading Power Test."

Discussion

Page metadata
Field Value
type claim
id reading-recovery-potentially-positive-comprehension
title Reading Recovery has potentially positive effects on comprehension, with mixed findings across two trials
description Reading Recovery has potentially positive effects on comprehension, with mixed findings across two trials
status review
evidence_strength mixed
newest_evidence 2013
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 2 — reading-recovery-2013, reading-recovery-2013-2

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