I use that term a lot, and I've been realizing that it's unclear to many people what that actually means. As Roland Paris pointed out years ago, the term means different things to different people; in fact my own empirical research suggests as much. So as I think ahead to teaching a course on this subject in the Fall, I thought it might be useful to nail down what the term generally means to me when I use it. My first stab at doing just that...
