How Prevalent is Post-Decision Dissonance? Some Doubts and New Evidence
Recent research is exploring the case for cognitive or post-decision dissonance using the free-choice paradigm of Brehm (1956). Participants are repeatedly faced with a choice between items that they have given the same rating of liking, two items at a time, and it is found that items not chosen in one choice has a lower tendency of being chosen in a subsequent choice against a different alternative item. This tendency is interpreted as evidence for cognitive or post-decision dissonance. I argue that this interpretation of the evidence is invalid. Furthermore, I report a novel experiment in which participants were specifically asked to compare the items, allowing for a consistent interpretation of the evidence. I find no evidence of post-decision dissonance after a choice between items where one was viewed as more attractive than the other, but potentially some weak evidence of post-decision dissonance after a choice between items viewed as equally attractive.
|Date of creation:||30 Aug 2009|
|Contact details of provider:|| Postal: Department of Economics, University of Oslo, P.O Box 1095 Blindern, N-0317 Oslo, Norway|
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- M. Keith Chen, 2008.
"Rationalization and Cognitive Dissonance: Do Choices Affect or Reflect Preferences?,"
Cowles Foundation Discussion Papers
1669, Cowles Foundation for Research in Economics, Yale University.
- M. Keith Chen, 2008. "Rationalization and Cognitive Dissonance: Do Choices Affect or Reflect Preferences?," Levine's Working Paper Archive 122247000000002336, David K. Levine.
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