A grocery researcher randomly chooses several geographic areas as primary sampling units, and then interviews a sample of grocery store owners within the chosen areas. Which type of sampling procedure does this represent?
A) Judgment sampling
B) Systematic sampling
C) Simple random sampling
D) Cluster sampling

Question

Quizplus · Accepted Answer

This represents cluster sampling as the researcher has chosen geographic areas as primary sampling units and collected data from all grocery store owners within each chosen area.

A Grocery Researcher Randomly Chooses Several Geographic Areas as Primary