Summary
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1 Sample Definition And Size
The study is a systematic 'tertiary' review, meaning it synthesizes existing systematic reviews and meta-analyses on phonics instruction. It does not involve primary participants; instead, it includes all relevant systematic reviews and meta-analyses identified in the literature. The exact number of reviews/meta-analyses included is not specified in the abstract but is described as 'all the relevant systematic reviews and meta-analyses.' ([durham-repository.worktribe.com](https://durham-repository.worktribe.com/output/1339781/phonics-reading-policy-and-the-evidence-of-effectiveness-from-a-systematic-tertiary-review?utm_source=openai))
2 Study Type
Systematic 'tertiary' review (a review of systematic reviews and meta-analyses). ([durham-repository.worktribe.com](https://durham-repository.worktribe.com/output/1339781/phonics-reading-policy-and-the-evidence-of-effectiveness-from-a-systematic-tertiary-review?utm_source=openai))
3 Conflicts Of Interest
No conflicts of interest are declared in the abstract or metadata available. ([durham-repository.worktribe.com](https://durham-repository.worktribe.com/output/1339781/phonics-reading-policy-and-the-evidence-of-effectiveness-from-a-systematic-tertiary-review?utm_source=openai))
4 Results Summary
The review provides an up-to-date overview of the results and quality of research on phonics instruction. It reports that 10 of the 12 meta-analyses reviewed showed significant benefits of systematic phonics on at least one reading measure, with effect sizes ranging from small to moderate. The remaining two meta-analyses showed positive but non-significant effects. The authors conclude that systematic phonics instruction should be included in teaching for younger readers, though the evidence is not clear enough to determine which phonics approach is best. ([link.springer.com](https://link.springer.com/article/10.1007/s10648-019-09515-y?utm_source=openai))