The nonequivalent-control-group design is important because true experimental designs are frequently either infeasible or undesirable and other quasi-experimental designs have only quite limited applications. This design, however, has been disparaged as nearly useless because it depends upon...

In writings on the theory of valuing, many take the position that impacts on the relevant outcome dimensions should be aggregated to arrive at one summary assessment of program merit. A contrary position is taken here, specifying that the impacts should be kept separate and unweighted and...

Several studies have evaluated the experimental housing allowance program authorized by Congress in 1970 and implemented by the Department of Housing and Urban Development. The studies that are relied upon most have nevertheless been considered inadequate because they were essentially case...

Conclusions of no difference are becoming increasingly important in evaluation research. We delineate three major uses of no-difference findings and analyze their meanings. (1) No-differ ence findings in randomized experiments can be interpreted as support for conclusions of the absence of a...

Foundations for Inquiry, a philosophy of social science book, is both a primer and a resource for anyone interested in social and behavioral research. As a "reader" with excerpts from classic and soon-to-be classic writings on research in the organizational sciences, the book shows the myriad...