It lectured a stochastics course for pre-service teachers last semester and had a teXed manuscript for myself which grew as the course was running. After some debate with the students, I made a version accessible online. In university courses, my students are free to attend the lessons or not. I think some thought then they would not have to come at all, some stopped copying from the blackboard, some struggled with my typos. That's the bad side of the coin. On the other side, students could check the lecture when they had not been there (some of them had another course overlapping), they now could think when I wrote and copying from the blackboard may generate new typos.
Question: Is there any founded discussion (mabye research) on the effects of handing-out lecture notes?
I know some lecturers do hand-out notes, some not, some hand-out notes with gaps to be filled in the lecturer. However, their reasons mainly lie in personal experience but not scientific debate.