@conference{Xu2019CogSci, title = {How should we incentivize learning? An optimal feedback mechanism for educational games and online courses}, author = {Xu, Lin and Wirzberger, Maria and Lieder, Falk}, month = jul, year = {2019}, doi = {}, url = {https://cognitivesciencesociety.org/wp-content/uploads/2019/07/cogsci19_proceedings-8July2019-compressed.pdf}, month_numeric = {7} }