An education researcher randomly selects 38 schools from one school district and interviews all the teachers at each of the 38 schools. Identify the type of sampling used in this example.
A)Stratified sampling
B)Systematic random sampling
C)Simple random sampling
D)Cluster sampling

Question

An education researcher randomly selects 38 schools from one school district and interviews all the teachers at each of the 38 schools. Identify the type of sampling used in this example. 
A)Stratified sampling
B)Systematic random sampling
C)Simple random sampling
D)Cluster sampling

Quizplus · Accepted Answer

In this example, the entire population is divided into groups (schools in this case), and then a random selection of these groups (38 schools) is chosen to be surveyed in their entirety. This method is known as cluster sampling, where each cluster represents a potential mini-representation of the population.

An Education Researcher Randomly Selects 38 Schools from One School