Answer to Question 1
B
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Grounded theory researchers typically use theoretical sampling, in which sampling decisions are guided in an ongoing fashion by the emerging theory. Ethnographers make numerous sampling decisions, including not only whom to sample but what to sample; decision making is often aided by their key informants who serve as guides and interpreters of the culture. Phenomenologists typically work with a small sample of people who meet the criterion of having lived the experience under study. Focus groups have been used by researchers in many qualitative traditions and in qualitative descriptive research.
Answer to Question 2
A
Phlebotomy. In this common procedure, a syringe needle punctures a vein, usually in the arm, and wit
Sampling Issues
The population of algae is compared to the population of corals in a given sampling area
Chorionic villus sampling (left) and amniocentesis (right)
Sample Size Affects Sampling Error
Survivorship curves. Blue lines are theoretical curves. Red dots are data from field studies.