Gustatory hindsight bias

Rüdiger F. Pohl (), Stefan Schwarz (), Sabine Sczesny () and Dagmar Stahlberg ()
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Rüdiger F. Pohl: Fachbereich 06 der Justus-Liebig-Universität Giessen, Postal: Otto-Behaghel-Str. 10, 35394 Giessen
Stefan Schwarz: Sonderforschungsbereich 504, Postal: L 13, 15, D-68131 Mannheim
Sabine Sczesny: Lehrstuhl fuer Sozialpsychologie der Universitaet Mannheim, Postal: Seminargebaeude A5, D-68131 Mannheim
Dagmar Stahlberg: Lehrstuhl fuer Sozialpsychologie, Sonderforschungsbereich 504, Postal: Seminargebaeude A5, D-68131 Mannheim

No 02-26, Sonderforschungsbereich 504 Publications from Sonderforschungsbereich 504, Universität Mannheim, Sonderforschungsbereich 504, University of Mannheim

Abstract: Being in hindsight, people tend to overestimate what they had known in foresight. This phenomenon has been studied for a wide variety of knowledge domains (e.g., episodes with uncertain outcomes, results of football games, or solutions to almanac questions). As a result of these studies, hindsight bias turned out to be a robust phenomenon. Yet, all material tested so far was verbal in nature. No other senses were involved. In this paper, we present two experiments that successfully extended the domain of hindsight bias to gustatory judgments. Participants tasted different food items and were asked to estimate the quantity of a certain ingredient, for example, the residual sugar in a white wine. Judgments in both experiments were systematically biased towards previously presented low or high values that were labelled as the true quantities. Thus, hindsight bias can be considered a phenomenon that extends well beyond verbal materials.

Pages: 26 pages
Date: 2002-03-19
Note: Financial support from the Deutsche Forschungsgemeinschaft, SFB 504, at the University of Mannheim, is gratefully acknowledged.
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