This bibliography lists references to cover 300 randomized field experiments undertaken in schools, hospitals, prisons, and other social settings. The list is divided into 10 major categories corresponding to the type of program under examination. They include: criminal and civil justice programs, mental health, training and education, mass media, information collection, utilization, commerce and industry, welfare, health, and family planning. The main purpose of the bibliography is to provide evidence on feasibility and scope of randomized field tests, since despite their advantages, it is not always clearfrom managerial, political, and other constraints on research that they can be mounted. © 1978, Sage Publications. All rights reserved.