which of these types of sampling is used
-An education researcher randomly selects 48 middle schools and interviews all the teachers at each school.
A) Random
B) Cluster
C) Stratified
D) Convenience
E) Systematic

Question

Quizplus · Accepted Answer

Cluster sampling is used here because the researcher selects entire groups (clusters) of subjects (schools) and interviews all members within those groups (teachers).

Which of These Types of Sampling Is Used