Answer:
A purposive sample is a non-probability sample that is selected based on characteristics of a population and the objective of the study. ... In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population).
Confidentiality refers to a condition in which the researcher knows the identity of a research subject, but takes steps to protect that identity from being discovered by others. ... Anonymity is a condition in which the identity of individual subjects is not known to researchers.
Explanation:
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