Does change in time spent playing video games cause change in grade point average?
Correlation and causation
Practice makes perfect
On average, an increase in time spent playing video games causes a decrease in time spent learning.
Time spent on video games ↗ ⇓ Time spent learning ↘At the same time, a decrease in learning time causes a decrease in grade point average.
Time spent learning ↘ ⇓ Grade point average ↘
By combining the above relations we can say that there is a causation and correlation between time spent playing video games and grade point average. Since an increase in one variable causes decrease in another one, the correlation is negative.
Time spent on video games ↗ ⇓ Grade point average ↘
