Seminal research:
- The Cooperative Research Program in First-Grade Reading Instruction, a large government-funded study commonly referred to as the "First Grade Studies", found that teacher excellence, not method, was the single biggest factor in student achievement in reading, accounting for 33% of the variance in children's reading achievement. (Bond and Dykstra, 1967, p. 43; Feldmann, p. 575).
Bond, G.L., & Dykstra, R. (1967). The cooperative research program on first-grade reading instruction. Reading Research Quarterly, II, 4, 5-142. Republished in 1997 in Reading Research Quarterly, 32, 348-427.
Feldmann, S.C. (1966). Study in depth of first-grade reading. Elementary English, XLIII, 6, 573-576.
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