His research interests have been in cognitive psychology, specializing in language comprehension. He has published more than 50 refereed articles and book chapters on these topics, as well as co-written or co-edited seven books. More recently he has turned his attention to the factors that determine success in college and how to instill them in beginning college students. The American Psychological Association has published his evidence-based book on this topic, Your Complete Guide to College Success. It is written for high-school seniors and undergraduate students. In addition, he is studying ways to move inexpensive, scalable, readily adoptable and adaptable learning and teaching techniques into college classrooms.
