This chapter provides an introduction to the statistical concepts that underlie the essential theoretical foundation to understanding the scientific basis of survey research.
The purpose of sampling is to be able to make generalizations about a population based on a scientifically selected subset of that population. Sampling is necessary because it is generally not practical or feasible to seek information from every member of a population. A sample therefore is intended to become a microcosm of a larger universe. However, chapter 1 asked how a relatively small subset of cases can be used to represent the much larger population from which the subset has been selected. To address and fully understand ...
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