A sample in human subjects research is a small group of people who are chosen to represent a [Page 1543]larger group of people or a population. Sampling is the process by which this small group of people or sample who represent the larger group or population is chosen. A special population is a particular group of people within the population that a researcher wants to study. Examples of special populations might include children, the elderly, people who share the same race or ethnicity, people who all have a particular medical condition, prisoners, people who all work for the same company, people who all use the same product, and the list goes on. Special populations are used frequently by communication researchers who want to ...
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