Since 1988 five evaluations of Federal demonstration programs in education have been implemented that had random-assignment designs to measure program impacts. The implementation of two of these evaluations, the evaluation of the School Dropout Demonstration Assistance Program and that of the Alternative Schools Random Assignment Program, are…

Problems with conducting randomized field experiments in education are explored. Focus is on problems encountered while evaluating a group of dropout prevention projects. Project planners were asked to manipulate the subject eligibility criteria until they identified as eligible three to four times as many students as they could serve. They were…