Why are techniques like cluster sampling and multistage sampling just as externally valid as simple random sampling?
A)They all contain elements of random selection.
B)They all measure every member of the population of interest.
C)They all use lists of all population members.
D)They all rely on large samples.

Question

Quizplus · Accepted Answer

Techniques like cluster sampling and multistage sampling still involve some level of random selection, just like simple random sampling. Therefore, they are likely to be just as externally valid as simple random sampling. The other options (B, C, and D) do not adequately capture why these techniques are as externally valid as simple random sampling.

Why Are Techniques Like Cluster Sampling and Multistage Sampling Just