Answer:
The correct answer would be, Third Variable Problem.
Explanation:
Third variable problem can be defined as the supporting events that may cause the primary event to occur but are not specifically the cause of occurring the primary event.
In this question, A researcher's finding is that if a student parties more hour, his GPA is likely to be affected more.
Other variables like hours studied, whether the student attended the classes, or whether the student is working as well, are all third variable problems.
