Fall 2005

Psychology 209: Topics in Judgment and Decision Making

Prof. Craig McKenzie

Office: 2564A Mandler Hall

Hours: By appointment

Phone: 534-8075

Email: cmckenzie@ucsd.edu

URL: psy.ucsd.edu/~mckenzie/


Wednesdays, 1-4, Crick Conference Room, 3rd floor Mandler Hall


Course Overview: In the late '60s, the consensus regarding judgment under uncertainty was that people, by and large, behave in accord with normative (or rational) statistical models. In the early '70s, Tversky and Kahneman revolutionized thinking about this area by arguing that people rely on a few simple cognitive shortcuts (heuristics) that lead to systematic errors (biases). This new view led research in the area to mesh better with cognitive psychology by focusing on the cognitive processes underlying judgment. The heuristics-and-biases paradigm has had a large impact on all social sciences and even some applied areas (e.g., business, law, medicine). The first half of the class will focus on recent developments in, and shortcomings of, this paradigm. The second half will take a critical look at "confirmation bias," one of the most widely cited errors people purportedly make.

Requirements: Thoughtful reading and discussion are required. Participants must do all the reading each week and come to class prepared to discuss it. Grades will be based on class participation. Short papers might also be required (in which case they will also influence grades).

Week 1 (September 28): Organizational meeting

Week 2 (October 5): Introduction to heuristics and biases

Tversky, A., & Kahneman, D. (1982). Judgment under uncertainty: Heuristics and biases. In D. Kahneman, P. Slovic, & A. Tversky (Eds.), Judgment under uncertainty: Heuristics and biases (pp. 3-20). Cambridge: Cambridge University Press. (Originally in Science, 1974, 185, 1124-1131.) [pdf]

Tversky, A., & Kahneman, D. (1983). Extensional versus intuitive reasoning: The conjunction fallacy in probability judgment. Psychological Review, 90, 293-315. [pdf]

Week 3 (October 12): Some recent developments

Gilovich, T., & Griffin, D. (2002). Heuristics and biases: Then and now. In T. Gilovich, D. Griffin, and D. Kahneman (Eds.), Heuristics and biases: The psychology of intuitive judgment (pp. 1-18). Cambridge: Cambridge University Press. [pdf]

Kahneman, D. & Frederick, S. (2002). Representativeness revisited: Attribute substitution in intuitive judgment. In T. Gilovich, D. Griffin, and D. Kahneman (Eds.), Heuristics and biases: The psychology of intuitive judgment (pp. 49-81). Cambridge: Cambridge University Press. [pdf]

Slovic, P., Finucane, M., Peters, E., & MacGregor, D. G. (2002).  The affect heuristic.  In T. Gilovich, D. Griffin, and D. Kahneman (Eds.), Heuristics and biases: The psychology of intuitive judgment (pp. 397-420). Cambridge: Cambridge University Press. [pdf]

Week 4 (October 19): A different view

Gigerenzer, G. (1991). How to make cognitive illusions disappear: Beyond "heuristics and biases." European Review of Social Psychology, 2, 83-115. [pdf]

Kahneman, D., & Tversky, A. (1996). On the reality of cognitive illusions. Psychological Review, 103, 582-591. [pdf]

Gigerenzer, G. (1996). On narrow norms and vague heuristics: A reply to Kahneman and Tversky. Psychological Review, 103, 592-596. [pdf]

Week 5 (October 26): More criticism

Funder, D. C. (1987). Errors and mistakes: Evaluating the accuracy of social judgment. Psychological Bulletin, 101, 75-90. [pdf]

McKenzie, C. R. M. (2005).  Judgment and decision making.  In K. Lamberts and R. L. Goldstone (Eds.), Handbook of cognition (pp. 321-338).  London: Sage. [pdf]

Week 6 (November 2): Introduction to "confirmation bias"

Wason, P. C. (1960). On the failure to eliminate hypotheses in a conceptual task. Quarterly Journal of Experimental Psychology, 12, 129-140. [pdf]

Snyder, M. (1981).  Seek and ye shall find: Testing hypotheses about other people.  In E. T. Higgins, C. P. Heiman, & M. P. Zanna (Eds.), Social cognition: The Ontario symposium on personality and social psychology (pp. 277-303).  Hillsdale, NJ: Erlbaum. [pdf]

Skov, R. B., & Sherman, S. J. (1986).  Information-gathering processes: Diagnosticity, hypothesis-confirmatory strategies, and perceived hypothesis confirmation.  Journal of Experimental Social Psychology, 22, 93-121. [pdf]

Week 7 (November 9): So, how should you test a hypothesis?

Klayman, J., & Ha, Y.-W. (1987). Confirmation, disconfirmation, and information in hypothesis testing. Psychological Review, 94, 211-228. [pdf]

Poletiek, F. (2001).  Hypothesis-testing behavior (Chapter 2).  East Sussex: Psychology Press. [pdf]

Week 8 (November 16): How prevalent is confirmation bias?

McKenzie, C. R. M. (2004). Hypothesis testing and evaluation. In D. J. Koehler & N. Harvey (Eds.), Blackwell handbook of judgment and decision making (pp. 200-219). Oxford: Blackwell. [pdf]

Klayman, J. (1995). Varieties of confirmation bias. Psychology of Learning and Motivation, 32, 385-418. [pdf]

Week 9 (November 23): Different results of same test can be differentially informative

Slowiaczek, L. M., Klayman, J., Sherman, S. J., & Skov, R. B. (1992).  Information selection and use in hypothesis testing: What is a good question and what is a good answer?  Memory and Cognition, 20, 392-405. [pdf]

McKenzie, C. R. M. (in press). Increased sensitivity to differentially diagnostic answers using familiar materials: Implications for confirmation bias. Memory and Cognition. [pdf]

Week 10 (November 30): Revisiting the issues

Nickerson, R. S. (1998).  Confirmation bias: A ubiquitous phenomenon in many guises.  Review of General Psychology, 2, 175-220. [pdf]

Nelson, J. D. (2005). Finding useful questions: On Bayesian diagnosticity, probability, impact, and information gain.  Psychological Review, 112, 979-999. [pdf]