Focus groups have an established history in applied research and evaluation. The fundamental methods of the focus group technique have been well discussed, as have their potential advantages. Less guidance tends to be provided regarding the analysis of data resulting from focus groups or how to organize and defend conclusions drawn from the…

Articles in this special issue suggest improvements in longitudinal program evaluation to meet the challenges of evaluation of human services programs. Contributions describe innovations in design, methods, data analysis, utilization, and interpretation of the findings of longitudinal studies. (SLD)