Claims

WWC finds CIRC has potentially positive effects on general literacy achievement for adolescent learners (average improvement index +2 percentile points)

Claim · All claims
Evidence · 1 study · quant-synthesis r1 · q2
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.

q2 i? Based on two quasi-experimental studies, the WWC rates CIRC as having potentially positive effects on general literacy achievement for adolescent learners. → Cooperative Integrated Reading and Composition® 2010 q2 i? The average improvement index for general literacy achievement is +2 percentile points, with a range of –3 to +8 across findings from two studies. → Cooperative Integrated Reading and Composition® 2010

Evidence

Cooperative Integrated Reading and Composition® 2010

Cooperative Integrated Reading and Composition®. (2010). WWC Intervention Report, Adolescent Literacy. What Works Clearinghouse, U.S. Department of Education. https://ies.ed.gov/ncee/wwc/InterventionReport/111

q2 · i? · quant-synthesis · r1

WWC systematic review computing improvement indices from the same two quasi-experiments; findings across the two studies were inconsistent, and no standardised effect size is printed for the domain average, so impact is null.

"The average improvement index for general literacy achievement is +2 percentile points, with a range of –3 to +8 percentile points across findings from two studies."

Discussion

Page metadata
Field Value
type claim
id circ-potentially-positive-general-literacy-achievement
title WWC finds CIRC has potentially positive effects on general literacy achievement for adolescent learners (average improvement index +2 percentile points)
description WWC finds CIRC has potentially positive effects on general literacy achievement for adolescent learners (average improvement index +2 percentile points)
status review
evidence_strength moderate
newest_evidence 2010
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 1 — cooperative-integrated-reading-and-composition-2010

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