An Over-Generalizing from Overly-Simplistic Evaluations of Complex Social Programs: In Further Response to Goodson, Layzer, St. Pierre and Bernstein. Commentary.

Refutes Gilliam et al.'s critique regarding the Comprehensive Child Development Program (CCDP) evaluation, including issues related to randomization, dropout rates, timing of evaluation, and services for control families. Discusses the broader issues regarding the appropriate interpretation of results of large-scale randomized trials of complex social programs, such as limitations of randomized trials, over-generalization, and a sequence of program evaluation. (KB)