How Can You Tell if a Student Is Disengaged?

career foundry has built its own learning platform, collecting a lot of data. Within that data, you're very quickly able to identify who's on track, who's not, and then intervene with the ones who aren't on track. A more about what goes into figuring out who's in which category. So for somebody who's disengaged, what signals are you looking at? How can you tell that this person is disengaged?