Several studies in recent years have examined the link between students texting and using Facebook in in class and their grades. The Chicago Tribune summarizes the studies:

In the past five years researchers have published the results of five surveys and experiments that link texting and Facebooking with lower academic performance. In 2011, researchers at California State University reported that students who received or sent a high number of text messages during a video recorded lecture scored worse on a quiz than those who received or sent few or no text messages.

In a 2012 study, a researcher at Lock Haven University in Pennsylvania surveyed 1,800 students about how often they Facebook, instant message, email, text, search online and talk on the phone in class. Among the results: 69 percent of students reported they had texted in class, and students who texted or used Facebook more frequently in class had lower overall semester GPAs. The author of that study, Reynol Junco, also co-wrote a study that linked texting and Facebooking during study time with lower GPAs…

“That I can be definitive about: That’s not working. If you’re going to search (online) during class, I don’t have any data telling you to stop. If you’re going to email during class, I don’t have any data to tell you to stop. But do not text or Facebook during class. Do not text or Facebook while you’re studying for your classes, because that’s another area where this is definitely a negative.”…

Junco’s evidence against texting and Facebooking is correlational, meaning that his studies show that students who Facebook or text more in class or while studying do worse academically, but not that the texting or Facebooking itself is causing the problem. It’s possible that, say, an easily distractible student is texting a lot and doing poorly in class, with the underlying cause of poor performance being the distractibility, not the texting. But Junco points to two other college studies in which researchers, not students, largely determined which students would do the most media multitasking in class.

In both the studies — the California State study and one published in 2012 in the journal Computers and Education — a form of media multitasking (texting or Facebooking) was linked to lower student performance.

It would be interesting to pair data like this with student’s perceptions of whether they are doing better or worse in a class because they are texting, browsing, or not. It would be one thing if students knew that texting was distracting and did it anyway and yet another thing if they were so used to texting that they were unaware of its possible effects.

Let’s say future studies more clearly establish a causal link. Would colleges then move to banning cell phone use or Facebooking in class? Or is this one of those areas that would generate a lot of negative feedback from students who would want the freedom to do more of what they want in class?