A study of 1,839 college students suggests a link between frequency of using Facebook and texting in class and grade point average. Students reporting a higher frequency of Facebook and texting use in class had lower grade point averages than students reporting a lower frequency of Facebook and texting use.
(Source: Data extracted from "In-Class Multi-Tasking and Academic Programs." Computers in Human Computers, 2012, dx.doi.org/10.1016/j.chb.2012.06.031)
a. Does the study suggest that frequency of using Facebook and texting in class and grade point average are positively correlated or negatively correlated?
b. Do you think that there might be a cause-and-effect relationship between frequency of using Facebook and texting in class and grade point average? Explain.