by Pardos, Zachary A, Dailey, Matthew D, Heffernan, Neil T
Published in International journal of artificial intelligence in education (2011)

by Pardos, Zachary A., Dailey, Matthew D., Heffernan, Neil T.
Published in Intelligent Tutoring Systems

by Singh, Ravi, Saleem, Muhammad, Pradhan, Prabodha, Heffernan, Cristina, Heffernan, Neil T., Razzaq, Leena, Dailey, Matthew D., O’Connor, Cristine, Mulcahy, Courtney
Published in Artificial Intelligence in Education