In the stereotypes and athletes study who was the control group

4. those students who completed the survey after the intelligence test.

Answer choices are:
1. those students who were not asked to complete the intelligence test
2. those students who did not take part in the study at all
3. those students who completed the survey prior to the intelligence test
4. those students who completed the survey after the intelligence test

A control group is a set or sample of persons in a  study who do not receive any treatment and is then used as a basis to measure how the other tested group does,  given a certain condition.

In our study of stereotypes and athletes, those students who completed the survey after the intelligence test are the control group or sometimes called the comparison group. 

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.