Assessing fidelity of implementation is becoming increasingly important in education research, in particular as a tool for understanding variations in treatment effectiveness. Fidelity of implementation is defined as "the determination of how well an intervention is implemented in comparison with the original program design during an efficacy…

In the context of an experimental trial, the authors examined variability in treatment and control teachers' use of several "Responsive Classroom" (RC) practices to predict students' 4th grade academic achievement. Further, they examined the extent to which use of the "RC" practices is differentially important for subgroups of…

The practical need for multidimensional measures of fidelity of implementation (FOI) of reform-based science, technology, engineering, and mathematics (STEM) instructional materials, combined with a theoretical need in the field for a shared conceptual framework that could support accumulating knowledge on specific enacted program elements across…

The main confirmatory research question guiding the design of the impact evaluation is: "What is the impact of Success for All (SFA) on elementary school students' reading achievement, compared to students in non-SFA schools?" An answer to this question will determine the assessment of whether SFA is successful at turning around low-performing…

The purpose of this paper is to propose a framework for conceptualizing and assessing fidelity of implementation (FOI) in the context of a cluster-randomized design study. A research-validated mathematics curriculum for preschool children called Numbers Plus is used as an example to describe the role of curriculum implementation fidelity in the…