Associate Professor, Psychology
My teaching focuses largely on applying psychological principles to help promote health and well-being across differing populations. I teach courses on health psychology, adolescent risk behaviours and statistics, among others.
Summary of Research:
- My research program focuses on social contributions to health-risk behaviour in adolescence and emerging adulthood.
- Much of my research focuses on the multifaceted role of peer influence and peer group dynamic on alcohol use and related risks. I recently conducted the first longitudinal study on university students’ intact drinking groups to examine how group factors, including drinking norms and individuals’ status within the group predict consumption patterns over time. Other current research aims to apply these findings to evidence-based intervention programming.
- Selected article: Dumas, Davis, Merrin, Puccia, & Blustein (2018). If you’re high status and you know it: Teasing apart the within- and between-person effects of peer- and self-reported status in the drinking group on alcohol-related outcomes. Psychology of Addictive Behavior.
- I also collaborate with colleagues from the Centre for Addiction and Mental Health on research pertaining to sexual violence and victimization in licensed drinking establishments, for which we recently received a CIHR Project Grant (2018-2021).
- Selected article: Graham, Bernards, Abbey, Dumas & Wells (2017). When women do not want it: Young female bargoers’ experiences with and responses to sexual harassment in social drinking contexts. Violence Against Women
- Another stream of research examines youth risk behaviour in an online context.
- Selected article: Dumas, Maxwell-Smith, Davis & Guilietti (2017). Lying or longing for likes? Narcissism, peer belonging, loneliness and normative versus deceptive like-seeking on Instagram in emerging adulthood. Computers in Human Behavior.





Lisa Jones Keenan is the Vice President of Sales at Xplornet Communications, the largest rural fixed wireless broadband service provider in Canada. 
Leigh Allen is the AVP, Global Strategic Research, Reinsurance Group of America Inc., one of the world’s largest global life and reinsurance companies.
Yola Ventresca is a Managing Partner, Lerners LLP, Secretary of Huron’s Board of Governors and a Huron Class of ’02 alumni. Selected as one of Canada’s “Best Lawyers,” she is passionate about the value of Liberal Arts in helping students succeed in their careers.
Susan Farrow is an Assistant Professor in The Temerty Faculty of Medicine at the University of Toronto and a Founding Partner and Co-Director of The Toronto Institute of Group Studies, an organization offering certified training and education in group leadership.
Frank Holmes is CEO and Chief Investment Officer of U.S. Global Investors, as well as a business commentator, philanthropist and Huron Class of ‘78 alumnus. Holmes also serves as the Executive Chairman of HIVE Blockchain Technologies, the first cryptocurrency mining company to go public in 2017.
Kelly Meighen is an experienced philanthropist and volunteer. In her role as president of the T.R. Meighen Family Foundation, she has created a legacy of volunteerism and philanthropic giving in the areas of youth mental health advocacy, environmental conservation and cultural vibrancy.
Ranjita is Executive Chair of the Oxford Global Partnership, advising investors, businesses, family offices and entrepreneurs on sustainable, inclusive and responsible value creation. A Business Fellow at Oxford University’s Smith School, Ranjita engages with companies on pursuing value with values, and teaches a postgraduate “Essentials of ESG & DEI” course.
Caleb Hayhoe is the Founder & Chairman of Flowerdale Group and a Huron Class of ’85 Alumnus. Flowerdale Group is a Hong Kong based family office with a global investment outlook across public markets, real estate and private investment. Hayhoe previously spent over ten years building a global sourcing business together with an exceptional team, and remains committed to entrepreneurialism and helping great ideas become sustainable companies.

