Identify the sampling technique used.
-A researcher randomly selected 50 of the nationʹs middle schools and interviewed all of the teachers at each school.
A)cluster
B)random
C)stratified
D)convenience
E)systematic

Question

Quizplus · Accepted Answer

The researcher selected a sample of middle schools and then included all of the teachers at each school, which is an example of cluster sampling. This is a cluster sampling technique because the schools are grouped into clusters and all individuals within each selected cluster (teachers at each school) are included in the sample.

Identify the Sampling Technique Used