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

Question

Quizplus · Accepted Answer

This is an example of cluster sampling because the researcher divided the population into clusters (middle schools) and then randomly chose a sample from those clusters (all the teachers at each selected school). This is different from stratified sampling, which would involve dividing the population into subgroups based on some characteristic (such as grade level at the school) and then randomly selecting a sample from each subgroup.

Identify Which of These Types of Sampling Is Used: Random