Epidemiology is the study of the distribution of disease in human populations. This means that authentically teaching primary data collection in epidemiology is difficult as students cannot easily access suitable human populations. Using an action research methodology, this paper studied the use of a virtual human population (called "The…

Populations where free access is denied pose special problems to the survey researcher. In attempting to make general estimates of the size of the composition of the audience in the USSR to Western radio broadcasts, a simulation technique (Mostellerization) has been developed which provides estimates of underlying data from aggregate results. (PD)

Six new forms of Armed Services Vocational Aptitude Battery (ASVAB) were developed. These new forms were equated to a standard reference test, ASVAB 8a, using normative data based on a 1980 weighted probability sample of American youth, ages 18-23. Equating allows the services to report the distributions of examinee ability on a common metric or…

The document explains geographic concepts, products, and programs developed by the Census Bureau to assist users in analyzing census data for geographic areas. Emphasis is on small-area data such as census tracts, city blocks, minor civil divisions, incorporated places, congressional districts, and wards. Also presented are data for larger units…