If the main purpose is educational, it is not self employment. Box 3 indicates that it is not self-employment, to get turbotax to fill out a schedule C you must be answering the test questions wrong. You should be answering the test questions as "no" -- not intended to make a profit, not similar to my usual work, not going to do in the future. Also, I believe that after entering the 1099-MISC, there is a page of special circumstances and one of those boxes you can check should say something about an educational stipend or scholarship.
