And the reasons those students don't take opportunities for help tend to be embarrassingly pathetic. Like, so embarrassing that they avoid even thinking about it, because if they made their real reason explicit, they would be pained at how dumb it is. (I've done this sot of thing myself, more times than I'm comfortable with.)

For example, I discovered that a significant fraction of the students in a certain class were afraid to ask questions of the professor because they found him scary. Now, I know the professor in question, and he's a friendly person who ... (read more)