Students who spend more hours in study groups tend to do better in their classes, as measured by their GPAs. This association would be an example of ____.
A) negative correlation
B) positive correlation
C) cause-and-effect relationship
D) chance event

Question

Quizplus · Accepted Answer

A positive correlation indicates that there is a relationship between two variables in which they both tend to increase or decrease together. In this case, the number of hours spent in study groups and the GPA are positively correlated, meaning that students who spend more time in study groups tend to have higher GPAs. However, this does not necessarily mean that study groups cause higher GPAs, as there may be other confounding variables involved. Therefore, it is not a cause-and-effect relationship, but rather a correlation.

Students Who Spend More Hours in Study Groups Tend to Do