I am Professor of Health Psychology in Psychological Sciences at University of California, Merced, USA and Professor of Behavior Change in the Faculty of Sport and Health Sciences, University of Jyväskylä, Finland. At UC Merced I am Director of the SHARPP Lab. I am also Adjunct Professor at Griffith University, and have been visiting Professor at the Universities of Rome, Bordeaux, and Genoble, and Hong Kong Baptist University.
My research applies social psychological theory to predict, understand, and change health behaviors. I seek to identify effects of psychological determinants such as attitudes, intentions, self-efficacy, perceived control, self-control, planning, personality, and motives on health behavior, and how health professionals can use this information to promote health behavior change through intervention. I am also interested in developing and advancing psychological theory through integration, particularly theory in social cognition, motivation, and self-control. In addition, I am interested in research synthesis, particularly testing predictions of psychological theory across multiple populations, contexts, and behaviors using meta-analysis.
I am currently Senior co-Editor (with Blair T. Johnson) of the Health Psychology section of Social Science and Medicine. I am also editorial board member of twelve international peer-reviewed journals including Annals of Behavioral Medicine, British Journal of Health Psychology, International Journal of Behavioral Medicine, Psychological Bulletin, Psychology and Health, and Social Science and Medicine. I am former Editor-in-Chief of Health Psychology Review (2011-2019) and Stress and Health (2014-2019). I am Distinguished International Affiliate of Division 38 (Health Psychology) of the American Psychological Association (APA), Fellow of European Health Psychology Society (EHPS), and Fellow of the Society of Experimental Social Psychology (SESP).
I have lived in eight countries (Australia, Finland, Hong Hong, Italy, Singapore, South Africa, United Kingdom, United States) and have run a marathon in under 2h 45min.