Dialogic Reading's average oral-language improvement index is +19 percentile points, ranging from –6 to +48 across findings¶
Claim · All claims
Evidence · 1 study · quant-synthesisr?·q3
Currency · newest study 2007 · 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-computed average improvement index for oral language is +19 percentile points across the five studies, with individual findings ranging from –6 to +48 percentile points. → WWC Intervention Report: Dialogic Reading 2007
Evidence¶
WWC Intervention Report: Dialogic Reading 2007¶
WWC Intervention Report: Dialogic Reading. (2007). What Works Clearinghouse, U.S. Department of Education, Revised February 8, 2007. https://ies.ed.gov/ncee/wwc
q3 · i? · quant-synthesis · r?
WWC synthesis computing improvement indices (difference in percentile rank between average intervention and comparison students) across five studies of Dialogic Reading in center-based settings; the review reports an average of "+19 percentile points" with a wide range across findings. No standardized effect size is printed for this aggregate.
"The average improvement index for oral language is +19 percentile points across the five studies, with a range of –6 to +48 percentile points across findings."
Discussion¶
Learner Variables¶
- Reading and Language — outcome: instruction changes it
- Oral Language — outcome: instruction changes it
Related Claims¶
- Dialogic Reading Improves Language Outcomes — the general claim this finding bears on, with the studies behind it¶
- Dialogic Reading combined with Sound Foundations shows potentially positive effects on print knowledge and early reading/writing but not oral language — related
- Dialogic reading has potentially positive effects on communication and language competencies for children with disabilities — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
dialogic-reading-oral-language-improvement-index |
title |
Dialogic Reading's average oral-language improvement index is +19 percentile points, ranging from –6 to +48 across findings |
description |
Dialogic Reading's average oral-language improvement index is +19 percentile points, ranging from –6 to +48 across findings |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2007 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — wwc-intervention-report-dialogic-reading-2007 |
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