When conducting a study in which it is not possible to determine the true number of subjects who meet eligibility criteria and obtaining a random sample would be time consuming and expensive,the researcher will use which sampling method?
A) Cluster sampling
B) Simple random sampling
C) Stratified random sampling
D) Systematic sampling

Question

Quizplus · Accepted Answer

Cluster sampling is often used when the researcher is unable to identify the individual elements making up the population and when obtaining a random sample is time consuming or expensive.Simple random sampling is the most basic random sampling technique and is usually used when the population is clearly identifiable.Stratified random sampling is used when the researcher knows some of the variables in the population that are critical for achieving representativeness.Systematic sampling is used when an ordered list of all members of the population is available and involves selecting every kth individual on the list.

When Conducting a Study in Which It Is Not Possible