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Applied Psychology &  Human Development



Keith E. Stanovich 

Professor Emeriti

Email: keith.stanovich@utoronto.ca 


The cognitive science of rational thought; individual differences in reasoning and decision making; the cognitive psychology of reading.

Research Projects/Activities

Click below for information on Dr Stanovich's latest research developments:


Research Interests

Our research group is developing a test to assess individual differences in rational thinking.  An important empirical discovery by our research group in the last several years has been that intelligence tests and their proxies leave a major gap in the assessment of mental abilities—they do not assess the rationality of thought.  People vary in their rational thinking propensities, and we are developing the first comprehensive test to assess variation in these thinking skills.

Representative Publications

Stanovich, K. E. (2011). Rationality and the reflective mind.  New York: Oxford University Press.  

Stanovich, K. E. (2009). What intelligence tests miss:  The psychology of rational thought. New Haven, CT: Yale University Press.  

Stanovich, K. E. (2004). The robot's rebellion: Finding meaning in the age of Darwin. Chicago: University of Chicago Press.

Stanovich, K. E., & West, R. F. (2000). Individual differences in reasoning: Implications for the rationality debate? Behavioral and Brain Sciences, 23, 645-726.