This article examined the extent to which administrative decisions that affected the implementation fidelity of Direct Instruction programs were related to student achievement. Data from three studies showed that administrative decisions that disregarded recommended protocols regarding teacher training, teacher preparation, and student schedules…

The purpose of this study was to examine the relationship of two implementation variables (source of technical support and time of implementation) to first grade reading achievement across three naturally-occurring conditions over a six-year time span. Two of the conditions involved implementation of Direct Instruction (DI) curriculum programs,…