Cognitive Psychologist; Professor, Department of Psychology, Iowa State University; Principal Investigator/Project Lead, “Implementing Principles from the Science of Learning Within Educational Practice,” a $4.6-million grant awarded by the James S. McDonnell Foundation to incorporate insights from the “science of learning” into teaching practice and student achievement; Co-Author, “The Rich- Get-Richer Effect: Prior Knowledge Predicts New Learning of Domain-Relevant Information” (2021, Journal of Experimental Psychology), “The Science of Effective Learning With Spacing and Retrieval Practice” (2022, Nature Review Psychology), and “How to Use Spaced Retrieval Practice to Boost Learning. Student and Teacher Practice Guide” (2019, Retrievalpractice.org)