The results of educational research studies are only as accurate as the data used to produce them. Drawing on experiences conducting large-scale efficacy studies of classroom-based algebra interventions for community college and middle school students, I am developing practice-based data cleaning procedures to support scholars in conducting…

A discussion of classroom research on language teaching looks at what researchers have learned so far from attempts to study what happens in the language classroom. The discussion is based on the idea that it is not the currency of instructional method used that matters most, but rather a fuller understanding of classroom interaction. The first…

Maintains that there is an inconsistency in the regression analysis of the data presented in Maureen J. Lage and Michael Treglia's 1996 article, "The Impact of Integrating Scholarship on Women into Introductory Economics." The authors admit the error, correct it, and report no difference in their original conclusions. (MJP)