Approaches to Evaluating Welfare Reform: Lessons from Five State Demonstrations. b. Assessing the Performance of a Random-Assignment Method


In all the experimental evaluations reviewed, an implementation study documented program administrators' perspectives on the process of random assignment, and the impact study compared the baseline characteristics of cases in the experimental and control groups. We believe that both of these investigations are valuable in uncovering any irregularities in the method of selecting of the experimental and control groups. We recommend that evaluators continue to use both approaches for monitoring the implementation of random-assignment evaluations.