Approaches to Evaluating Welfare Reform: Lessons from Five State Demonstrations. a. Timing of Random Assignment for Recipients

10/01/1996

Only Minnesota's evaluation implemented random assignment of recipients at the time of redetermination; the other evaluations implemented the random assignment of recipients at a single point in time. In California's evaluation, random assignment of recipients occurred about one month before the implementation of welfare reform throughout the state, with oversampling to allow for errors and attrition; recipients who did not receive welfare benefits during the month of implementation were deleted from the sample. In Colorado's evaluation, welfare reform was not implemented throughout the state, so recipients assigned to the experimental group were the only group subject to welfare reform policies. In Michigan's evaluation, random assignment of recipients occurred at the same time as the implementation of welfare reform throughout the state.