=+13.53 Television is regarded by many as a prime culprit for the difficulty many students have in performing well in school. The article “The Impact of Athletics, Part-Time Employment, and Other Activities on Academic Achievement” (Journal of College Student Development [1992]:

447–453) reported that for a random sample of n 5 528 college students, the sample correlation coefficient between time spent watching television (x) and grade point average (y) was r 5 2.26.