Pritchard, D. E., Warnakulasooriya, R. Assessing knowledge transfer from individual instructional items - AAPT, Summer Meeting, Salt Lake City, Utah, 2005.

Pritchard, D. E. The promise and reality of web-based tutoring - Crosstalk Seminar, MIT, November 18, 2004.

Pritchard, D. E. myCyberTutor : an expert learning system - Education Development Center, Newton, Massachusetts, May 6, 2004.

Pritchard, D. E. myCyberTutor : an expert learning system - Lesley University, Cambridge, Massachusetts, April 29, 2004.

Pritchard, D. E. The promise and reality of web-based tutoring - Physics Education Research Seminar, Dept. of Physics, Kansas State University, April 20, 2004.

Pritchard, D. E. myCyberTutor : an expert learning system - TERC, Cambridge, Massachusetts, April 7, 2004.

Pritchard, D. E. The promise and reality of web-based tutoring - University of Queensland, Brisbane, Australia, March 2, 2004.

Pritchard, D. E. The promise and reality of web-based tutoring - Australia National University, Canberra, Australia, February 27, 2004.

Pritchard, D. E. The promise and reality of web-based tutoring - Melbourne University, Melbourne, Australia, February 25, 2004.

Pritchard, D. E. myCyberTutor : Tutoring, Assessment, and Educational Research - Physics Education Research Seminar, Dept. of Physics, The Ohio State University, September 29, 2003.

Pritchard, D. E. Exceptionally High Reliability within myCyberTutor - Educational Testing Service, New Jersey, November 21, 2002.

Pritchard, D. E. CyberTutor, an Effective Combination of Tutoring, Assessment, and Educational Research - Gordon Conference on Physics Research and Education, Mt. Holyoke College, Massachusetts, June 9-14, 2002.

Warnakulasooriya, R., Pritchard, D. E. Learning and problem-solving transfer between physics problems using web-based homework tutor - EdMedia 2005: World Conference on Educational Multimedia, Hypermedia & Telecommunications, Montreal, Canada, 2005.

Pritchard, D. E., Warnakulasooriya, R. Data from a web-based homework tutor can predict student's final exam score - EdMedia 2005: World Conference on Educational Multimedia, Hypermedia & Telecommunications, Montreal, Canada, 2005.

Morote, E. -S., Pritchard, D. E. Technology Closes the Gap between Students' Individual Skills and Background Differences - Society for Information Technology and Teacher Education, Atlanta, Ga, 2004.

Morote, E. -S., Pritchard, D. E., & Kokorowski, D. Using Computer-Based Tutorial Problems to Enhance Student Learning - The National Association for Research in Science Teaching Annual Meeting, Philadelphia, March 24-26, 2003.

Pritchard, D. E., Morote, E. -S. Reliable Assessment with CyberTutor, a Web-Based Homework Tutor - World Conference on E-Learning in Corporate, Government, Health, and Higher Education, E-Learn 2002, Montreal, Canada, October 15-19, 2002.

Pritchard, D. E., Morote, E. -S., & Kokorowski, D. CyberTutor, a Socratic Electronic Homework Tutor at MIT - World Conference on E-Learning in Corporate, Government, Health, and Higher Education, E-Learn 2002, Montreal, Canada, October 15-19, 2002.

Pritchard, D. E., Morote, E. -S. What Course Elements Correlate with Improvement on Tests in Introductory Newtonian Mechanics? - The National Association for Research in Science Teaching Annual Meeting, New Orleans, Louisiana, April 7-12, 2002.

Dukes, P., Pritchard, D. E., Morote, E. -S. Inductive Influence of Related Quantitative and Conceptual Problems - The National Association for Research in Science Teaching Annual Meeting, New Orleans, Louisiana, April 7-12, 2002.

Warnakulasooriya, R., Lee, Y-J, Palazzo, D. J., Pritchard, D. E. Expert-novice studies using a web-based Socratic tutor - AAPT, Winter Meeting, Anchorage, Alaska, 2006. 

Palazzo, D. J., Warnakulasooriya, R., Pritchard, D. E.Effect of homework cheating in introductory physics - AAPT, Winter Meeting, Anchorage, Alaska, 2006. 

Warnakulasooriya, R., Pritchard, D. E. Evidence of knowledge transfer in web-based physics tutor - Physics Education Research Conference, Salt Lake City, Utah, 2005. 

Pritchard, D. E., Warnakulasooriya, R. Time to completion of physics problems in web-based tutor - Foundations and Frontiers of Physics Education Research, Bar Harbor, Maine, August 2005. 

Warnakulasooriya, R., Pritchard, D. E. Effectiveness of the tutorial problem pedagogy in web-based physics tutor - AAPT, Summer Meeting, Salt Lake City, Utah, 2005. 

Pritchard, D. E., Warnakulasooriya, R., Morote, E. -S. Predicting the final exam score from tutoring data - AAPT, Winter Meeting, Albuquerque, New Mexico, 2005. 

Warnakulasooriya, R., Pritchard, D. E. Hints really help! - AAPT, Winter Meeting, Albuquerque, New Mexico, 2005. 

Pritchard, D. E., Warnakulasooriya, R., Morote, E. -S. Educational research using myCyberTutor - Ed Tech Fair, MIT, 2004. 

Pritchard, D. E., Morote, E. -S., Warnakulasooriya, R. Learning and knowledge transfer between tutorial and related problems - Physics Education Research Conference, Sacramento, California, 2004. 

Warnakulasooriya, R., Pritchard, D. E. Time to completion curves for physics problems - Physics Education Research Conference, Sacramento, California, 2004. 

Warnakulasooriya, R., Pritchard, D. E. Insight from time for completion curves - AAPT, Summer Meeting, Sacramento, California, 2004. 

Pritchard, D. E., Morote, E. -S., Warnakulasooriya, R. Learning and knowledge transfer between tutorial and related problems - AAPT, Summer Meeting, Sacramento, California, 2004. 

Pritchard, D. E., Morote, E. -S., Kokorowski, D., Warnakulasooriya, R. Educational Research using Web-based Tutor Data - AAPT, Winter Meeting, Miami Beach, Florida, 2004.

Pritchard, D. E., Morote, E. -S., & Kokorowski, D. Student Response Variables from Online Tutor System - AAPT Summer Meeting, Madison, WI, 2003.

Morote, E. -S., Pritchard, D. E., & Kokorowski, D. Positive Inductive Influence of Computer-based Tutorial Problems - AAPT Summer Meeting, Madison, WI, 2003.

Kokorowski, D. Reliable Assessment using CyberTutor for Electronic Tutoring - AAPT, Summer Meeting, Boise, Idaho, 2002.

Kokorowski, D. Refining Instruction using CyberTutor Feedback - AAPT, Summer Meeting, Boise, Idaho, 2002.

Korsunsky, B., Morote, E. -S., Pritchard, D. E., Morton, A. Statistical Patterns in Problem-Solving Behavior Analyzed with CyberTutor - AAPT, Summer Meeting, Boise, Idaho, 2002.

Korsunsky, B., Morote, E. -S., Pritchard, D. E., Kokorowski, D. Using CyberTutor in Problem-Solving Instruction at High-School and College Level - AAPT, Summer Meeting, Boise, Idaho, 2002.

Korsunsky, B. Analyzing Patterns in Solving Challenging Problems using Interviews, Written Comments - AAPT, Summer Meeting, Boise, Idaho, 2002.

Pritchard, D. E., Pritchard, A., Dukes, P., Kokorowski, D., Morote, E. -S. CyberTutor, an Effective Combination of Tutoring, Assessment, and Educational Research - AAPT, Winter Meeting, Philadelphia, PA, 2002.

Korsunsky, B. Put Your Problems on Ice! - AAPT, Summer Meeting, Rochester, NY, 2001.