A population is a set of units defined by time, space, and membership. We measure populations for three reasons: to generate new questions, to answer existing questions, and to address social policy.
Sociologists conduct research by studying samples of a population. A sample is a selection of a subset of units from a population.
A sample is selected via a sampling frame. There are many different strategies for collecting samples including: arbitrary, convenience, self selected, random sample, and stratified random sample.
No comments:
Post a Comment