Reducing the Knowledge Tracing Space. - Steven Ritter 001; Thomas K. Harris; Tristan Nixon; Daniel Dickison; R. Charles Murray; Brendon Towle (EDM, 2009)

Predicting the Effects of Skill Model Changes on Student Progress. - Daniel Dickison; Steven Ritter 001; Tristan Nixon; Thomas K. Harris; Brendon Towle; R. Charles Murray; Robert G. M. Hausmann (Intelligent Tutoring Systems (2), 2010)

Interactive diagrams reduce the split-attention effect in geometry. - Robert G. M. Hausmann; Daniel Dickison; John Connelly; Brendon Towle (CogSci, 2011)