In a cluster randomized trial, CIRC produced a statistically significant positive effect on main idea identification (effect size 0.85) but not on inference questions¶
Claim · All claims
Evidence · 2 studies · 2 causalr3·q3·i3large
Currency · newest study 2012 · 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 i3 Third- and fourth-grade students in CIRC classrooms significantly outperformed comparison classrooms on Main Idea Questions (effect size 0.85, improvement index +30, p < 0.01). → stevens-main-idea
q3 i? No statistically significant difference was found between the CIRC group and the comparison group on Inference Questions (effect size 0.19, p > 0.05). → stevens-inference
Evidence¶
stevens-main-idea¶
U.S. Department of Education, Institute of Education Sciences, What Works Clearinghouse. (2012, June). Beginning Reading intervention report: Cooperative Integrated Reading and Composition®. https://ies.ed.gov/ncee/wwc/InterventionReport/109
q3 · i3 · causal · r3
Cluster randomized trial of 30 classrooms (486 students) in four Harrisburg, Pennsylvania schools; 153 students in 10 CIRC classrooms versus 167 comparison students using basal readers. WWC calculations show a Main Idea Questions effect size of 0.85, improvement index +30, p < 0.01, favoring CIRC.
"Main Idea Questions Grades 3 and 4 20 classes/ 320 students 6.40 (1.83) 4.74 (2.03) 1.66 0.85 +30 < 0.01"
stevens-inference¶
U.S. Department of Education, Institute of Education Sciences, What Works Clearinghouse. (2012, June). Beginning Reading intervention report: Cooperative Integrated Reading and Composition®. https://ies.ed.gov/ncee/wwc/InterventionReport/109
q3 · i? · causal · r3
Same cluster randomized trial (Stevens et al., 1991), WWC calculations for the author-developed 10-item Inference Questions test: effect size 0.19, improvement index +8, p > 0.05 — not statistically significant. The study reported outcomes after four weeks of implementation.
"Inference Questions Grades 3 and 4 20 classes/ 320 students 5.69 (2.14) 5.28 (2.08) 0.41 0.19 +8 > 0.05"
Discussion¶
Related Claims¶
- The cooperative learning component's added benefit over direct instruction alone with CIRC materials was not statistically significant on main idea identification — related
- In a quasi-experimental study, CIRC showed no statistically significant effect on comprehension outcomes after WWC clustering and multiple-comparison adjustments — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
circ-rct-main-idea-significant-inference-null |
title |
In a cluster randomized trial, CIRC produced a statistically significant positive effect on main idea identification (effect size 0.85) but not on inference questions |
description |
In a cluster randomized trial, CIRC produced a statistically significant positive effect on main idea identification (effect size 0.85) but not on inference questions |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2012 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
2 — stevens-main-idea, stevens-inference |
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