A researcher was able to obtain a list of all lung cancer patients in the Southeast
If a table of random numbers was used to create a sample from that original list and then those individuals agreed to participate in a study, what kind of sample would have been created?
a. Cluster
b. Convenience
c. Simple random
d. Stratified random
ANS: C
Simple random sampling is when every member of the population has an equal chance of selection for the sample.
Cluster sampling occurs when a researcher develops a sampling frame that consists of a larger division than the one desired and it is chosen randomly, then subjects from the chosen subsets are selected randomly.
A convenience sample is not a random sample; it is based on any member of the target population that is easily accessible to the researcher.
In a stratified sample, knowledge about characteristics of the population is used to create representativeness.
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