Professor of Human Computer Interaction and Psychology, Carnegie Mellon University; Director of the LearnLab, which builds on the past success of Cognitive Tutors, an approach to online personalized tutoring that is in use in thousands of schools and has been repeatedly demonstrated to increase student achievement; Co-Founder of CarnegieLearning, Inc. that has brought Cognitive Tutor based courses to millions of students since it was formed in 1998; Author, "Navigating Ethical Benefits and Risks as AIED" Comes of Age" (2024, International Journal of Artificial Intelligence in Education); Co-Author, "Improving Student Learning with Hybrid Human-AI Tutoring: A Three-Study Quasi-Experimental Investigation" (2024, Proceedings of the 14th Learning Analytics and Knowledge)