A researcher is interested in examining study habits among high school students.They decide to divide the student body based on their grade levels (e.g., freshmen).The researcher then collects a random sample from each grade level.What kind of sampling design is this researcher using?
A)simple random sampling
B)stratified random sampling
C)cluster sampling
D)disproportionate stratified sampling

Question

Quizplus · Accepted Answer

The researcher is using stratified random sampling because they are dividing the population into smaller groups (strata) based on grade levels and then taking a random sample from each of these groups.

A Researcher Is Interested in Examining Study Habits Among High