Mary McCaslin, (pka McCaslin Rohrkemper), PhD, Michigan State University (1981), is a Professor of Educational Psychology at the University of Arizona. McCaslin is a Fellow of the American Psychological Association, Division 15, Educational Psychology. She previously served on the faculties of the University of Maryland-College Park, Bryn Mawr College, and the University of Missouri-Columbia. McCaslin’s scholarship focuses on the role of opportunity, activity, and identity in the development and display of student motivational dynamics within a co-regulation framework. Currently, McCaslin serves on the Editorial Board of Educational Psychologist, is Co-editor of the Educational Psychology section of the Routledge Encyclopedia of Education (online), and a member of the Dissertation Awards Committee of Division 15, APA.