Contact person for dataset of user performance on exercices

Hi,

I'm interested in applying machine learning for the development of intelligent tutoring systems. It would be very valuable for me to obtain an (anonymized) dataset listing the sequence of exercises that Khan Academy users perform and their performances on them. I believe that kind of datasets has been shared in the past with third parties for research purposes.

I could elaborate more on the technical side but my main question is who to contact for that kind of inquiry, I didn't find any suitable contact channel.

Best,

Jerome Renaux