Ritter has received study fellowships from the Air Force Office of Scientific Research, and the European Science Foundation's program on Learning in Humans and Machines. He has created several web sites, one of which, the Soar-FAQ, won an award for being frequently cited. He has created software, tutorials, and methodology for cognitive modeling. Ritter has published numerous refereed books, articles, and conference papers in cognitive modeling, HCI, AI, and psychology. He twice coedited the proceedings of a conference on cognitive modeling and a special issues of Computational Mathematical Organizational Theory journal and the International Journal of Human-Computer Studies on cognitive models as users. He is on the editorial board of Human Factors and IEEE SMC: Human-Machine Systems. His research has been funded by the US Office of Navy Resarch, the US Air Force Office of Scientific Research, DSTL, DARPA, the Defense Evaluation and Research Agency (U.K.), and the U.K. Joint Council Initiative on Cognitive Science and Human Computer Interaction, as well as corporations in the U.S. and Europe.
Ritter studies cognitive modeling, cognitive architectures, human-computer interaction, and learning. He has taught cognitive modeling, cognitive architectures, human-computer interaction, human factors, user interface design, cognitive psychology, artificial intelligence, and discrete math.