Professor, Department of Informatics, Luddy School of Informatics, Computing and Engineering, Indiana University Bloomington
Affiliate Faculty, Instructional Systems Technology, Department of Instructional Systems Technology, School of Education, Indiana University Bloomington
Executive Associate Dean, Cognitive Science Program, College of Arts and Sciences, Indiana University Bloomington
Interim Director, Cognitive Science Program, College of Arts and Sciences, Indiana University Bloomington
Assistant Professor, Educational Psychology
Director, Authorware, Inc. (now Macromedia)
Associate Professor, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign (past)
Assistant Director, Computer-based Education Research Laboratory, University of Illinois at Urbana-Champaign (past)
Professor, Instructional Systems Technology, Department of Instructional Systems Technology, School of Education, Indiana University Bloomington