A researcher, involved in a study of the population of Houston, divided the city into city blocks and then drew a random sample of 200 city blocks.All households in the 200 blocks were interviewed. The researcher used
A)a simple random sample.
B)judgmental sampling.
C)snowball sampling.
D)cluster sampling.
E)systematic sampling.

Question

Quizplus · Accepted Answer

The researcher divided Houston into city blocks and drew a sample of 200 blocks, which is an example of cluster sampling. This sampling method involves dividing the population into clusters or groups and randomly selecting a sample of those clusters to study. In this case, the clusters are the city blocks, and all households in those blocks were interviewed.

A Researcher, Involved in a Study of the Population of Houston