The Headline Finding
After a systematic review of 10 of the most widely cited dyslexia intervention programs — applying PRISMA 2020 and GRADE standards — one finding demands the field's attention: Not a single program achieves "high certainty" of evidence across the full set of foundational reading outcomes. This is not a failure of Structured Literacy as a category. The science of reading is clear: explicit, systematic, cumulative, diagnostic, multisensory instruction works. It is a failure of program-level...
