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BaranskiPetrusic1995.zip
Baranski1995Stimuli.zip
Baranski1995Data.zip
"On the calibration of knowledge and perception". Canadian Journal of Experimental Psychology, 49, 397-407.
This experiment compares performance on perceptual and knowledge tasks. The goal is to measure whether people expect their performance to be better than it is on either or both tasks. The original study concluded that performance was similar on both types of task.

The script presents a series of questions and a series of pictures, each with two possible answers. The participants are supposed to decide which of the answers is correct and then provide their confidence in their answer.

Luchins and Luchins 1950, Bilodeau, Bilodeau, and Schumsky 1959, Koriat, Lichtenstein, and Fischhoff 1980, Baranski and Petrusic 1994
Audley, R.J. (1960). A stochastic model for individual choice behaviour. Psychological Review, 67, 1-15.

Baranski, J.V. (1991). Theories of Confidence Calibration and experiments on the time to determine confidence. Doctoral dissertation, Carleton University, Ottawa, Canada.

Baranski, J.V. & Petrusic, W.M. (1993). Comparing locations in the plane. Presented at the 3rd Annual Meeting of the Canadian Society for Brain, Behaviour, and Cognitive Science, Toronto, Ontario.

Baranski, J.V. & Petrusic, W.M. (1994). The calibration and resolution of confidence in perceptual judgments. Perception & Psychophysics, 55, 412-428.

Bjorkman, M., Juslin, P., & Winman, A. (1993). Realism of confidence in sensory discrimination: The underconfidence phenomenon. Perception & Psychophysics, 54, 75-81.

Dawes, R.M. (1980). Confidence in intellectual vs. confidence in perceptual judgments. In E.D. Lantermann & H. Feger (Eds.), Similarity and choice: Papers in honor of Clyde Coombs (pp. 327-345). Bern: Hans Huber.

Fechner, G.T. (1966/1860). Elements of Psychophysics. New York: Holt.

Ferrell, W.R. & McGoey, P.J. (1980). A model of calibration for subjective probabilities. Organizational Behavior and Human Performance, 26, 32-53.

Gigerenzer, G. Holfrage, U., & Kleinbolting, H. (1991). Probabilistic mental models: A Brunswikian theory of confidence. Psychological Review, 98, 506-528.

Griffin, D., & Tversky, A. (1992). The weighing of evidence and the determinants of confidence. Cognitive Psychology, 24, 411-435.

Henmon, V.A.C. (1911). The relation of the time of a judgment to its accuracy. Psychological Review, 18, 186-201.

Johnson, D.M. (1939). Confidence and speed in the two-category judgment. Archives of Psychology, 34, 1-53.

Keren, G. (1988). On the ability of monitoring non-veridical perceptions and uncertain knowledge: Some calibration studies. Acta Psychologica, 67, 95-119.

Keren, G. (1991). Calibration and probability judgments: Conceptual and methodological issues. Acta Psychologica, 77, 217-273.

Lichtenstein, S., & Fischoff, B. (1977). Do those who know more also know more about how much they know? The calibration of probability judgments. Organizational Behavior and Human Performance, 20, 159-183.

Link, S.W. (1992). The wave theory of difference and similarity. Hillsdale, Erlbaum.

McClelland, A.G.R. & Bolger, F. (1994). The calibration of subjective probabilities: Theories and models 1980-94. In G. Wright & P. Ayton (Eds.), Subjective Probability (pp. 453-482). Chichester: Wiley.

Murphy, A.H. (1973). A new vector partition of the probability score. Journal of Applied Meteorology, 12, 595-600.

Peirce, C.S. & Jastrow, J. (1884). On small differences of sensation. Memoirs of the National Academy of Sciences, 3, 75-83.

Vickers, D. (1979). Decision processes in visual perception. New York: Academic Press.

Winman, A., & Juslin, P. (1993). Calibration of sensory and cognitive judgments: Two different accounts. Scandinavian Journal of Psychology, 34, 135-148.

Wright, G. (1984). Behavioural decision theory: An introduction. Middlesex: Penguin.

Wright, G., & Ayton, P. (1988). Decision time, subjective probability and task difficulty. Memory and Cognition, 16, 176-185.

Yaniv, I., Yates, J.F., & Smith, E.E. (1991). Measures of discrimination skill in probabilistic judgment. Psychological Bulletin, 110, 611-617.

{Cited By}
This study examined confidence judgments (i.e., calibration, resolution, and over/underconfidence) and response times in an intellectual knowledge task and a perceptual task requiring location comparisons. At each of four levels of judgment difficulty (i.e. Easy, Hard, Impossible, and Misleading/Illusory), very similar properties were evident in the two tasks. The results are inconsistent with theories that assume a fundamentally different basis for confidence in human knowledge and perception.
{Works Cited}
{Data Instructions}

05-Mar-2002

Brian MacWhinney