Criticizes an earlier essay that questioned the validity of contemporary educational research practices, especially those involving experimentation. Argues that research using experimentation is valid and can lead to new and generalizable knowledge. (FMW)

Critical features of sound observational studies fall under three categories: the sampling framework; the theoretical model; and the statistical procedure. If the methodology for explanatory, rather than descriptive, observational studies can be applied within these categories, more consistent, convincing, useful explanations of educational…