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…

Quantitative mixed models were used to examine literature published from 1966 through 2016 on the effectiveness of Direct Instruction. Analyses were based on 328 studies involving 413 study designs and almost 4,000 effects. Results are reported for the total set and subareas regarding reading, math, language, spelling, and multiple or other…

Most evaluators have embraced the goal of evidence-based practice (EBP). Yet, many have criticized EBP review systems that prioritize randomized control trials and use various criteria to limit the studies examined. They suggest this could produce policy recommendations based on small, unrepresentative segments of the literature and recommend a…

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,…

This paper examines changes in the average mathematics achievement of students in the Baltimore City Public School System (BCPSS) from 1998 to 2003, comparing students in schools that implemented Direct Instruction with students in other schools. First-grade students who received Direct Instruction had significantly higher levels of achievement on…

Thirty-seven students from a suburban community in the southern United States were randomly assigned to receive 30 minutes of additional instruction each day in their usual language arts curriculum or 30 minutes of instruction with the Direct Instruction program, "Funnix Beginning Reading". Instruction for the "Funnix" group…

Data from two different sites were used to examine how exposure to a highly academic curriculum is related to growth in beginning literacy and early reading skills from kindergarten through the end of third grade. In one site students in one school used the Direct Instruction (DI) program, "Reading Mastery (RM)", from kindergarten…