1099-MISC for teacher training

My wife is a high school teacher and as part of her job she participated in a training hosted by a university, for which she received a 1099-MISC for $840. I entered as a 1099-MISC income, and selected "Yes, it involved work like wife's main job or it was wife's main job". Was this correct?

 

Turbotax also started a Schedule C for this, but did not fill in much of the information, and now there are 11 "errors" that need to be fixed. In this situation is she really considered to be self employed? How should I fill this form out?