This study addresses itself to the quality of evaluation research on compensatory education programs, the knowledge based on such evaluations as to the effectiveness of compensatory education, and the implications of the data that need to be examined for future planning of such programs and for designing studies to test their effectiveness.…

More carefully controlled research distinguishing more facets which may influence cognitive and social performance in young children is considered necessary before Head Start or any preschool program can be adequately assessed. Shortcomings in evaluation methodology discussed are as follows: evaluation research has not addressed itself to program…

Measuring cognitive achievement gains in project evaluation is dealt with. This guide provides those concerned with project evaluation with the basic tools for conducting technically sound, interpretable evaluation studies. Exotic designs are avoided and five basic models which appear feasible to implement in real-world settings are focused on.…