David R. Mandel

Adjunct Professor

Locations / Contact Info:

Keele Campus
Phone: 416 635-2000 Ext. 3146

Email address(es):


Web site(s):

My Google Website

Faculty & School/Dept.

Faculty of Health - Department of Psychology


Ph.D. - 1996
Vancouver, B.C.


David Mandel's current full-time position is as senior defence scientist in the Sensemaking and Decision Group of the Socio-Cognitive Systems Section at DRDC Toronto, part of an agency of the Canadian government's Department of National Defence. He was an associate professor of psychology from 2001-2004 at University of Victoria, leaving as a tenured faculty member; a senior lecturer in psychology at University of Hertfordshire from 1998-2001; and a Social Sciences and Humanities Research Council of Canada postdoctoral fellow in the Department of Psychology at Stanford University from 1996-1998. He was also cross-appointed at the University of Toronto (St. George) from 2004-2011.

Selected Publications

Mandel, D. R. (2012). On the psychology of evil in interpersonal and corporate contexts. In C. Jurkiewicz (Ed.) The foundations of organizational evil (pp. 87-102). Armonk, NY: M.E. Sharpe.

Mandel, D. R. (2012). What do Americans and Chinese think about themselves and each other? In S. Clark & S. Hoque (Eds.), Debating a post-American world: What lies ahead? (pp. 110-116). Oxon, UK: Routledge. 

Mandel, D. R. (2011). Mental simulation and the nexus of causal and counterfactual explanation. In C. Hoerl, T. McCormack, & S. Beck (Eds.), Understanding counterfactuals, understanding causation: Issues in philosophy and psychology (pp. 147-170). Oxford, UK: Oxford University Press.

Mandel, D. R. (2011). The role of instigators in radicalization to violent extremism. In A. Speckhard (Ed.) Psychosocial, Organizational, and Cultural Aspects of Terrorism: Final Report to NATO HFM140/RTO (pp. 2-1 to 2-10). Brussels: NATO.

Mandel, D. R., & Vartanian, O. (2011). Frames, brains, and content domains: Neural and behavioral effects of descriptive content on preferential choice. In O. Vartanian and D. R. Mandel (Eds.), Neuroscience of decision making (pp. 45-70). New York: Psychology Press. 

Mandel, D. R. & Vartanian, O. (2010). Bush v. Bin Laden: Effect of state emotion on perceived threat is mediated by emotion towards the threat agent. International Review of Social Psychology, 23(1), 5-23.

Mandel, D. R., & Vartanian, O. (2009). Weighting of contingency information in causal judgment: Evidence of hypothesis dependence and use of a positive-test strategy. Quarterly Journal of Experimental Psychology, 62(12), 2388-2408.

Mandel, D. R. (2008). Violations of coherence in subjective probability: A representational and assessment processes account. Cognition, 106(1), 130-156.


Currently available to supervise graduate students: Not Indicated

Currently taking on work-study students, Graduate Assistants or Volunteers: Not Indicated

Available to supervise undergraduate thesis projects: Not Indicated

Current Research

My research focuses on descriptive, normative, and prescriptive aspects of human judgment, decision making, thinking, and reasoning. My recent work is particularly concerned with expert judgment in the area of intelligence analysis. I'm also interested in studying the social, political, and psychological bases of collective violence and conflict.

Research Projects

Coherence of probability and contingency judgments
Basic cognitive research on coherence measures in the context of judgment and decision making.
Role: Principal Investigator
Year Funded: 2007
Duration: 7
Funded by: Natural Sciences and Engineering Research Council

DAGGRE Forecasting
Applied research on superior methods of elicitation and aggregation of crowdsourced forecasts for enhanced intelligence analysis. Led by George Mason University.
Role: CoInvestigator
Year Funded: 2011
Duration: TBD
Funded by: Other...
Other funding: Intelligence Advanced Research Projects Activity (IARPA)

Improving Critical Thinking Skills of Analysts
Using argument mapping, mastery learning, and peer instruction to significantly enhance intelligence analysts' critical thinking skills. Led by University of Melbourne.
Role: CoInvestigator
Year Funded: 2012
Duration: TBD
Funded by: Other...
Other funding: Intelligence Advanced Research Projects Activity (IARPA)

Understanding and Augmenting Human Analytic Capabilities
Applied behavioral science research aimed at better understanding and improving intelligence analysis.
Role: Principal Investigator
Year Funded: 2008
Duration: 5
Funded by: Other...
Other funding: DRDC Applied Research Program (ARP)