Professor Costanza’s research focuses on generational differences; adaptive leadership; high potential; organizational culture, decline, and death; as well as statistics and research methods. He has published in Journal of Business and Psychology; Journal of Vocational Behavior; Personnel Psychology; and Work, Aging and Retirement. He has authored for Slate and has been interviewed by The Washington Post, The Wall Street Journal, Financial Times, TIME magazine, VOX, and Yahoo! Finance. He is a member of the Society for Industrial and Organizational Psychology and the Academy of Management and serves on the editorial boards of Journal of Business and Psychology and Work, Aging and Retirement.

Prior to joining the faculty of the McIntire School, Professor Costanza was at The George Washington University, where he served as a Department Chair and Director of the Industrial/Organizational Psychology Ph.D. Program. He is also a Senior Consortium Fellow for the U.S. Army Research Institute, offering technical and scientific advice to military researchers and practitioners. 

Professor Costanza has received the Society for Industrial and Organizational Psychology's Distinguished Teaching Contributions Award, the Distinguished Alumni Award in I/O Psychology from George Mason University, and the Robert W. Kenny Prize for Innovation in Teaching of Introductory Courses from the Columbian College at The George Washington University. He teaches COMM 1800 as well as additional upper-division elective courses.