Commentary

excellent presentation of the issues involved in designing and conducting formal studies of health care interventions as well as useful guidelines for judging their success and for interpreting the results they produce. Although the number of specific studies reviewed was necessarily limited, Dr. Sechrest has prepared a very useful sampler of interesting findings from diverse research topics such as manpower, prevention, cost-containment, and quality assurance. He has also addressed the formidable challenge of making research findings useful. From several perspectives, Dr. Sechrest's overview is a most valuable contribution.