A researcher divides a study population into relevant subgroups then draws a sample from each subgroup.In this case,the sample is known as a(n)_____.
A)convenience sample
B)snowball sample
C)systematic sample
D)haphazard sample
E)simple random sample

Question

Quizplus · Accepted Answer

This sampling method is known as stratified sampling where the population is divided into relevant subgroups, and a sample is drawn from each subgroup using a systematic approach. This method ensures that the sample represents the characteristics of the population, and reduces the bias that may be present in other sampling methods such as convenience or haphazard sampling. Snowball sampling involves using existing study participants to recruit new participants, and simple random sampling involves randomly selecting individuals from the population without considering subgroups.

A Researcher Divides a Study Population into Relevant Subgroups Then