A study has been designed for two schools in IL to examine w

A study has been designed for two schools in IL to examine whether the BMI and fasting blood glucose for students in one schools is different than that for the other school. All students in each school will participate. This study is an example of what type of sampling technique?

Solution

This is cluster sampling because population is divided in schools. Tow schools are selected and all students of both schools are included in the sample.