A researcher selects a sample using a list of possible subjects. She uses a random number to select the first​ subject, and then selects every tenth subject on the list. What is this an example​ of?

Question

A systematic sample

A cluster sample

A stratified sample

A multistage sample

A simple random sample​ (SRS)

Answer 1

This is an example of systematic sampling, where they take the "systematic" approach of selecting every nth member of the population (in this case, n=10).