The multi-component intervention produced statistically significant advantages over business-as-usual on one decoding measure (ES = 0.58) and one fluency measure (ES = 0.46), but not on reading comprehension¶
Claim · All claims
Evidence · 1 study · causalr2·q2·i2medium
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
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This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i2 The treatment condition outperformed BaU on one decoding measure (ES = 0.58) and one reading fluency measure (ES = 0.46), with no significant differences on remaining decoding, fluency, reading comprehension, or spelling measures. → Kulesz 2024
Evidence¶
Kulesz 2024¶
Kulesz, P. A., Roberts, G. J., Francis, D. J., Cirino, P., Walczak, M., & Vaughn, S. (2024). Latent profiles as predictors of response to instruction for students with reading difficulties. Journal of Educational Psychology, 116(3). https://doi.org/10.1037/edu0000832
q2 · i2 · causal · r2
Outcome results from the Vaughn et al. (2019) RCT on which this sample was based, reported in the intervention section: significant effects on one decoding measure (ES = 0.58) and one fluency measure (ES = 0.46), with no significant group differences on remaining measures including reading comprehension.
"Study findings suggested that the treatment condition had statistically significantly higher outcomes on one decoding (ES = 0.58) and one reading fluency (ES = 0.46) measure than the BaU condition. There were no statistically significant group differences on the remaining decoding, fluency, reading comprehension, or spelling measures."
Discussion¶
Learner Variables¶
- Decoding — outcome: instruction changes it
Related Claims¶
- The MSDS curriculum showed no statistically significant effects on word recognition, spelling, fluency, or comprehension outcomes — related
- Phonics instruction has a small but statistically confirmed effect for children with reading disabilities, while Orton-Gillingham structured-literacy programs show positive but non-significant effects — related
- In a Los Angeles RCT, Earobics® plus Open Court improved phonological awareness but not letter knowledge, phonics, or fluency — related
- Systematic phonics outperforms unsystematic or no-phonics instruction on children's reading overall, but its advantage over whole-word teaching on novel words is untested in children and contested — related
- Embedded cognitive flexibility practice showed no overall advantage over phonics alone on growth in decoding, encoding, or cognitive flexibility — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
intervention-gains-decoding-fluency-not-comprehension |
title |
The multi-component intervention produced statistically significant advantages over business-as-usual on one decoding measure (ES = 0.58) and one fluency measure (ES = 0.46), but not on reading comprehension |
description |
The multi-component intervention produced statistically significant advantages over business-as-usual on one decoding measure (ES = 0.58) and one fluency measure (ES = 0.46), but not on reading comprehension |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2024 |
generated |
by process:wiki-ingest on 2026-10-23 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — kulesz-2024 |
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