Sound Partners tutoring has positive effects on the alphabetics of beginning readers in grades K–3¶
Claim · All claims
Evidence · 1 study · quant-synthesisr2·q3
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.
q3 i? Across seven studies meeting WWC standards, Sound Partners produced positive effects in the alphabetics domain, with an average improvement index of +21 percentile points. → Sound Partners 2010
Evidence¶
Sound Partners 2010¶
Sound Partners. (2010). WWC Intervention Report: Sound Partners. What Works Clearinghouse, U.S. Department of Education. http://www.wri-edu.org/partners/sound-partners.htm
q3 · i? · quant-synthesis · r2
The WWC's synthesis of seven studies (four RCTs meeting standards, three meeting standards with reservations) covering 442 kindergarten and first-grade students reports that "the average improvement index for alphabetics is +21 percentile points across the seven studies."
"The average improvement index for alphabetics is +21 percentile points across the seven studies, with a range of –6 to +39 percentile points across findings."
Discussion¶
Related Claims¶
- Earobics® has positive effects on alphabetics for K–3 beginning readers, based on four WWC-reviewed studies — related
- The evidence base for Sound Partners is medium to large for alphabetics, fluency, and comprehension and small for general reading achievement — related
- Sound Partners tutoring has positive effects on reading fluency of beginning readers — related
- Sound Partners tutoring has positive effects on reading comprehension of beginning readers — related
- SpellRead™ has positive effects on alphabetics for struggling beginning readers, with an average improvement index of +18 percentile points — related
- Lexia Reading has potentially positive effects on alphabetics for beginning readers — related
- SpellRead™ shows potentially positive effects on alphabetics for adolescent readers, with an average improvement index of +23 across two studies — related
- DaisyQuest has positive effects on alphabetics skills in beginning readers, per WWC synthesis of four randomized controlled trials — related
- Ladders to Literacy shows potentially positive effects on alphabetics, with an average improvement index of +25 percentile points and a domain average effect size of 0.69 — related
- Sound Partners produces significantly positive but smaller reading outcomes for English learner first graders (effect size +0.15) — a narrower finding that bears on this claim
- Reading Recovery has potentially positive effects on alphabetics for beginning readers — related
- Reading Partners tutoring significantly improves reading comprehension for grade 2-4 struggling readers, with a total effect size of +0.10 — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
sound-partners-positive-effects-alphabetics |
title |
Sound Partners tutoring has positive effects on the alphabetics of beginning readers in grades K–3 |
description |
Sound Partners tutoring has positive effects on the alphabetics of beginning readers in grades K–3 |
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 — sound-partners-2010 |
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