Disengagement during lectures: Media multitasking and mind wandering in university classrooms

In university classrooms, the use of laptops or smartphones for purposes unrelated to the lecture is on the rise. Consequently, it is important to understand how frequently this behavior occurs, to track whether it increases throughout a lecture, and to quantify the potential costs to learning. In two studies, we measured rates of disengagement during lectures related to media use (i.e. media multitasking; Studies 1 & 2) and lecture-unrelated...