How does a researcher go about sampling for qualitative interviews (i.e.,what type of methodology is used)? How is the method of selection justified? What is the procedure for determining the number of individuals/cases to include in the sample?

Question

Quizplus · Accepted Answer

The Answer is Nonprobability sampling,specifically snowball and purposive sampling are used because the topics that researchers are interested in studying through the use of qualitative interviewing do not easily lend themselves to probability sampling.
A researcher does not know in advance how many individuals he or she needs to interview and so simply continues to interview subjects until the same general themes continue to emerge from the data and no new findings are being revealed (theoretical saturation).

How Does a Researcher Go About Sampling for Qualitative Interviews