If relevant characteristics of a population are known, a researcher can draw a ____ sample that may be more representative of the population than a simple random sample.
A) systematic
B) purposive
C) stratified
D) probability

Question

Quizplus · Accepted Answer

A stratified sample involves dividing the population into subgroups (strata) based on relevant characteristics, and then taking a random sample from each stratum. This ensures that each subgroup is represented in the sample and can provide more accurate estimates for the population. A systematic sample involves selecting every nth individual from a list or sequence and may not guarantee representation of all subgroups. Purposive sampling involves selecting participants based on a specific purpose or criteria, which may introduce bias into the sample. Probability sampling includes simple random sampling, stratified sampling, and other methods that use random selection to ensure representativeness.

If Relevant Characteristics of a Population Are Known, a Researcher