A researcher wants to compare students' grade point averages based on a student's year in college: freshmen, sophomore, junior, and senior. If the researcher also wants to have a probability sample with the equal number of students in each category, what might be the best way?

Question

Quizplus · Accepted Answer

Stratified random sampling is the best method for this scenario because it allows the researcher to divide the population into subgroups (freshmen, sophomore, junior, and senior) and then randomly select an equal number of students from each subgroup. This ensures that each subgroup is represented equally in the sample.

A Researcher Wants to Compare Students' Grade Point Averages Based