Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to accurately represent data populations.

In this paper we will look at the context of interviewing low-income populations and the unique challenges presented to survey practitioners. Within that context, we will explore what data collection ...

Cochran (1977) outlines eleven steps in the planning of a survey. Good sampling methods must exist in the environment of all of these steps. These steps are (1) a statement of the survey objectives, ...