DOI link for Population Sampling
Population Sampling book
This chapter introduces to basic concepts and principles associated with sampling, a third critical element of data collection. National Helping Hands' interest in evaluating member organization contributions is not only a measurement challenge in terms of operationalizing the nature of voluntary contributions. The beauty of probability sampling is that a random selection of members of the population of interest, in general, will produce a representative sample of the population. Representativeness simply means that the characteristics of the sample closely resemble the characteristics of the population from which the sample was drawn. There are several different considerations in creating an actual sample frame before making a random selection of units. Another probability sampling approach is the idea of Systematic Sampling. The basic idea of systematic sampling is quite similar to simple random sampling—very nearly the same.