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Stewart I. Donaldson, PhD, is Distinguished University Professor and Executive Director of the Claremont Evaluation Center (CEC) and the Evaluators’ Institute (TEI) at Claremont Graduate University. He is deeply committed to improving lives through positive psychology research, evaluation, and education. He is Co-Founder of the first Ph.D. and research focused masters programs in positive psychology at Claremont Graduate University, and mentors many graduate students specializing in positive psychology and evaluation science. Professor Donaldson serves on the Council of Advisors for the International Positive Psychology Association (IPPA), is Faculty Advisor for the Student Division of IPPA (SIPPA), served on the IPPA Board of Directors (2013-2017), and was Chair of IPPA’s World Congress of Positive Psychology in Los Angeles (2013). He has published hundreds of peer reviewed articles, chapters, evaluation reports, and more than 20 books on positive psychology topics and evaluation science including Well-being and Success for University for University Students: Apply PERMA+4 (2024); Positive Organizational Psychology Interventions: Design and Evaluation (2021); Positive Psychological Science (2020); Toward a Positive Psychology of Relationships (2018); Scientific Advances in Positive Psychology (2017); and Applied Positive Psychology (2011). Professor Donaldson has been honored with many career achievement awards for his research and evaluation contributions including the 2021 IPPA Fellow Award, 2019 IPPA Work and Organizations Division Exemplary Research to Practice Award, and the 2019 SIPPA Inspiring Mentor Award.