MD-only students outperform MDRD students in fact retrieval skill overall¶
Claim · All claims
Evidence · 1 study · causalr2·q3·i2medium
Currency · newest study 2009 · 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 i2 Across tutoring conditions, MD-only students achieved higher posttest fact retrieval than MDRD students (ES = 0.47). → Powell 2009
Evidence¶
Powell 2009¶
Powell, S. R., Fuchs, L. S., Fuchs, D., Cirino, P. T., & Fletcher, J. M. (2009). Effects of Fact Retrieval Tutoring on Third-Grade Students with Math Difficulties with and without Reading Difficulties. Learning Disabilities Research & Practice, 24(1), 1-11. https://doi.org/10.1111/j.1540-5826.2008.01272.x
q3 · i2 · causal · r2
Posttest ANCOVA main effect for MD subtype was significant, F(1,127) = 14.95, p < .0002; Table 3 reports an MD-only versus MDRD effect size of 0.47 (CI 0.13 to 0.81). The trial randomized 139 third graders.
"Follow-up tests indicated that MD-only students outperformed MDRD students (p < .0002), and the two fact retrieval tutoring groups outperformed the comparison students"
Discussion¶
Learner Variables¶
- Arithmetic Fact Retrieval — outcome: instruction changes it
Related Claims¶
- Adding conceptual instruction to fact retrieval practice yields no additional fact retrieval benefit — related
- Tutoring condition interacts with MD subtype status in effects on third graders' fact retrieval skill — related
- MDRD third graders show no significant differences among tutoring conditions on fact retrieval — related
- MD-only third graders in fact retrieval tutoring outperform PROC/E and control students on fact retrieval — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
md-only-outperform-mdrd-fact-retrieval |
title |
MD-only students outperform MDRD students in fact retrieval skill overall |
description |
MD-only students outperform MDRD students in fact retrieval skill overall |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2009 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — powell-2009 |
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