Hindsight bias in political elections

Authors: Blank H.¹; Fischer V.²; Erdfelder E.³

Source: Memory, Volume 11, Numbers 4-5, Numbers 4-5/July-September 2003 , pp. 491-504(14)

Publisher: Psychology Press, part of the Taylor & Francis Group

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Abstract:

Two studies on political hindsight bias were conducted on the occasions of the German parliament election in 1998 and the Nordrhein-Westfalen state parliament election in 2000. In both studies, participants predicted the percentage of votes for several political parties and recalled these predictions after the election. The observed hindsight effects were stronger than those found in any prior study on political elections (using percentage of votes as the dependent variable). We argue that the length of the retention interval between original judgement and recollection is mainly responsible for this difference. In our second study, we investigated possible artifacts in political hindsight biases using a control-group design where half of the participants recalled their predictions shortly before or after the election. Hindsight bias was preserved, reinforcing the results of earlier studies with non-control-group designs. Finally, we discuss the possibility that the hindsight experience (in political judgement and in general) actually consists of three different, partly independent components.

Document Type: Research article

Affiliations: 1: University of Leipzig, Germany 2: Hannover Medical School, Germany 3: University of Mannheim, Germany

Publication date: 2003-07-01

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