Population science, a combination of natural science, social science, and management science, deals with the phenomena associated with the human population size. Subjects include the rates of change of the sizes of the various subsets of the human population, the causes and results of those changes, the societal pressures for control of population subset size, and the methodology and results of such control. The education of the population scientist, therefore, must integrate demography, sociology, anthropology, psychology, political science, information science, management science/operations research, reproductive biology, and human ecology. The population scientist must be educated in his roles in the collection and organization of knowledge about the sizes of subsets of the human population and in the management of those sizes. Existing graduate programs at various universities across the country display a miscellany of approaches and emphases; most programs are not taught within a single department, and few or none require management science. (Author/JH)