Claims

BCIRC has potentially positive effects on reading achievement for Spanish-speaking English language learners (effect size 0.61, not statistically significant after clustering correction)

Claim · All claims
Evidence · 1 study · causal r2 · q2 · i2 medium
Currency · newest study 2007 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · 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 i2 Third-grade English language learners in BCIRC scored higher on the NAPT reading scale than comparison students, with an effect size of 0.61 that was not statistically significant after correction for clustering. → Bilingual Cooperative Integrated Reading and Composition 2007

Evidence

Bilingual Cooperative Integrated Reading and Composition 2007

Bilingual Cooperative Integrated Reading and Composition. (2007). WWC Intervention Report. U.S. Department of Education, What Works Clearinghouse. https://eric.ed.gov/?id=ED405428

q2 · i2 · causal · r2

WWC calculations for the Calderón, Hertz-Lazarowitz, and Slavin (1998) quasi-experimental study: adjusted mean NAPT reading scores of 33.16 for the BCIRC group versus 23.83 for comparison among 85 posttested third graders, with a printed effect size of 0.61 ("0.61 ns +23"). The WWC rated the effect substantively important but could not confirm statistical significance after correcting for clustering.

"Norm-Referenced Assessment Program for Texas—Reading Grade 3 85 33.16 (15.44) 23.83 (14.98) 9.33 0.61 ns +23"

Discussion

Learner Variables

Page metadata
Field Value
type claim
id bcirc-potentially-positive-reading-achievement
title BCIRC has potentially positive effects on reading achievement for Spanish-speaking English language learners (effect size 0.61, not statistically significant after clustering correction)
description BCIRC has potentially positive effects on reading achievement for Spanish-speaking English language learners (effect size 0.61, not statistically significant after clustering correction)
status review
evidence_strength moderate
newest_evidence 2007
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 1 — bilingual-cooperative-integrated-reading-and-composition-2007

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