The purpose of this study is to extend the work of Spybrook and Raudenbush (2009) and examine how the research designs and sample sizes changed from the planning phase to the implementation phase in the first wave of studies funded by IES. The authors examine the impact of the changes in terms of the changes in the precision of the study from the…

I define a treatment effect in terms of a comparison of outcomes and provide a typology of all possible comparisons that can be used to estimate treatment effects, including comparisons that are relatively unknown in both the literature and practice. I then assess the relative merit, worth, and value of all possible comparisons based on the…

A large body of literature documents the central importance of fidelity of program implementation in creating an internally valid research design and considering such fidelity in judgments of research quality. The What Works Clearinghouse (WWC) provides web-based summary ratings of educational innovations and is the only rating group that is…

This article describes the design and evaluation approaches to address the complexity posed by systems change initiatives. The role of evaluations in addressing the following issues is briefly reviewed: moving from strategic planning to implementation, impacts on system-level coordination, anticipated timeline of impact, and individual level…

Qualitative case study methodology provides tools for researchers to study complex phenomena within their contexts. When the approach is applied correctly, it becomes a valuable method for health science research to develop theory, evaluate programs, and develop interventions. The purpose of this paper is to guide the novice researcher in…

In consultation with experts in the fields of education research and whole school improvement, researchers at the Comprehensive School Reform Quality (CSRQ) Center created a framework for evaluating the scientific rigor of research studies that report on the efficacy of whole school improvement models. In this paper, the authors begin with a brief…

Career and technical education research often centers around quantitative research designs. The Delphi Technique provides a structured communication process designed to produce a detailed examination of a topic and/or problem and discussion from the participating group. The contributions of individuals via this tool produce a group perspective not…