There are a few related papers by Goldstein. Below you can get the data and code.
Baker, R., Goldstein, A., Heffernan, N. (2011). Detecting the Moment of Learning. International Journal of Artificial Intelligence in Education, 21 (1-2), 5-25 (Get the data here)
Baker, R., Goldstein, A. & Heffernan, N. (2010). Detecting the Moment of Learning, In Aleven, V., Kay, J & Mostow, J. (Eds) Proceedings of the 10th International Conference on Intelligent Tutoring Systems (ITS2010) Part 1. Springer. Pages 25-33. Nominated for Best Paper
Goldstein, A., Baker, R. & Heffernan, N. (2010). Pinpointing Learning Moments; A finer grain P(J) model In Baker, R.S.J.d., Merceron, A., Pavlik, P.I. Jr. (Eds.) Proceedings of the 3rd International Conference on Educational Data Mining. Pages 289-290.
Here is a link to the data file that contains the student data and I think the code.
http://web.cs.wpi.edu/~nth/PublicScienceArchive/assistments-p(j)-data.zip