Baker, R.S.J.d., Corbett, A.T., Aleven, V. (2008) More Accurate Student Modeling Through Contextual Estimation of Slip and Guess Probabilities in Bayesian Knowledge Tracing. Proceedings of the 9th International Conference on Intelligent Tutoring Systems, 406-415.
In the published version of this article, three formulas had the same minor typo. They are now corrected.
Our apologies for the error.
A corrected version of this article is available online at http://www.wpi.edu/~rsbaker/BCA2008W.pdf