Efficacy of Small-Group Reading Intervention for Grades 2 and 3 Children With Reading Difficulties: A Cluster Randomized Controlled Trial
Bibliographic record
Abstract
We examined whether a Phonics + Set for Variability (S f V) reading intervention would lead to better irregular word reading compared to Phonics + Morphology within a cluster randomized control trial (RCT) design with a follow-up measurement. The participants were 273 Grades 2 and 3 students with reading difficulties (139 in the Phonics + S f V and 134 in the Phonics + Morphology) who received intervention in small groups (2–4 children), 4 times a week, 30 minutes each time, for 15 weeks. All participants were from schools in Alberta, Canada. Results of hierarchical linear modeling showed that there was a significant effect of intervention on all reading outcomes (e.g., from pre- to posttest the effect sizes for Phonics + S f V ranged from g = 0.74 to 1.54 and for Phonics + Morphology from g = 0.75 to 1.49). Unexpectedly, there were no differences between the intervention conditions in any of the outcome variables, including irregular word reading and morphological awareness that the interventions partly focused on.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.006 | 0.010 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.003 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.007 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".