Discusses advantages of randomized experiments and key issues raised in this special issue. Focuses on growth and decrease in the use of randomized experiments by the California Youth Authority, the U.S. National Institute of Justice, and the British Home Office. Calls for increased recognition of the importance of randomized experiments. (SLD)

Describes the randomized field trials conducted by the California Youth Authority in the 1960s and 1970s and discusses why such rigorous tests were used and why they eventually came to be used less often. (SLD)

Discusses the contrast between the frequency of randomized clinical trials in the health sciences and the relative famine of such studies in criminology. Attributes this difference to the contexts in which research is done and the difference in the status of situational research in the two disciplines. (SLD)

Alcohol use is highly prevalent among U.S. college students, and alcohol-related problems are often considered the most serious public health threat on American college campuses. Although empirical examinations of college drinking have relied primarily on self-report measures, several investigators have implemented field studies to obtain…

Although some argue that randomization of treatments or interventions violates accepted norms of conduct of social science research, this article makes the case that there is a moral imperative for the conduct of randomized experiments in crime and justice studies. (SLD)

Explores sequential assignment (SA) and treatment-as-usual (TAU) as two approaches to overcome many of the obstacles of random assignment in field studies of treatment efficacy. Substituting SA and TAU for the standard random assignment may introduce methodological impurities including certain limited biases. (SLD)

Describes the history of the random experiment in the Home Office in the United Kingdom and demonstrates that research and the conduct of research is not an altogether rational process and that fashion, personality, and politics play a role in research policy and methodology choice. (SLD)

The 11 programs and sites participating in the Bureau of Justice Assistance (BJA) Intensive Supervision Demonstration Project are described. The demonstration was designed to assess the effects and costs of sentencing convicted felons to community-based programs. The evaluation by the Rand Corporation and data collection methods and random…

To identify general principles of implementing a system of evaluation, the experience of Malawi in building a national system for agriculture is described. Applying principles of both centralization and decentralization and principles of trial and error has helped translate theories of evaluation into practice in Malawi. (SLD)