A pilot study on logic proof tutoring using hints generated from historical student data. - Tiffany Barnes; John C. Stamper; Lorrie Lehmann; Marvin J. Croy (EDM, 2008)

Improving performance and retention in computer science courses using a virtual game show. - Carl Arrington Jr.; Dale-Marie Wilson; Lorrie Lehmann (ACM Southeast Regional Conference, 2011)

Program Representation for Automatic Hint Generation for a Data-Driven Novice Programming Tutor. - Wei Jin 007; Tiffany Barnes; John C. Stamper; Michael John Eagle; Matthew W. Johnson 001; Lorrie Lehmann (ITS, 2012)

Using Individualized Feedback and Guided Instruction via a Virtual Human Agent in an Introductory Computer Programming Course. - Lorrie Lehmann; Dale-Marie Wilson; Tiffany Barnes (ITS, 2012)