Question

in a study, the sample is chosen by choosing every 5th person on a list
what is the sampling method?

cluster
systematic
simple random
stratified
convenience

Explanation:

To determine the sampling method, we analyze each option:

• Cluster Sampling: Involves dividing the population into clusters and sampling entire clusters. This is not the case here as we're not sampling clusters.
• Systematic Sampling: Involves selecting every \( n \)-th individual from a list. Here, every 5th person is chosen, which fits systematic sampling.
• Simple Random Sampling: Each individual has an equal chance of being selected randomly, not by a fixed interval.
• Stratified Sampling: Involves dividing the population into strata and sampling from each stratum. This is not what's happening here.
• Convenience Sampling: Uses individuals who are easy to reach, not a fixed interval selection.

Since the sample is chosen by selecting every 5th person, this matches the definition of systematic sampling.

Answer:

B. Systematic