Before polling students in the School of Business, the researcher divides all the current students into groups based on their class standing (freshman, sophomores, etc). Then, she randomly draws a sample of 50 students from each of these groups to create a representative sample of the entire student body in the School. The researcher is practicing which of the following sampling methods?
A)Simple random sampling
B)Systematic random sampling
C)Stratified random sampling
D)Cluster sampling
E)Snowball sampling

Question

Quizplus · Accepted Answer

The researcher is practicing stratified random sampling, as they have divided the population into different strata (groups based on class standing) and randomly sampled within each stratum to create a representative sample of the entire population. This is a more efficient and accurate method of sampling compared to simple random sampling or cluster sampling. Systematic random sampling involves selecting every nth individual from a list, which is not evident in this scenario, and snowball sampling involves selecting individuals based on referrals or recommendations from existing participants.

Before Polling Students in the School of Business, the Researcher