Decisions by coin toss

In many situations of indeterminacy, where people agree that no decisive arguments favor one alternative to another, they are still strongly opposed to resolving the dilemma by a coin toss. The robustness of this judgment-decision discrepancy is demonstrated in several experiments, where factors lik...

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Main Authors: Gideon Keren, Karl H. Teigen
Format: Article
Language:English
Published: Cambridge University Press 2010-04-01
Series:Judgment and Decision Making
Subjects:
Online Access:http://journal.sjdm.org/10/10203/jdm10203.pdf
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author Gideon Keren
Karl H. Teigen
author_facet Gideon Keren
Karl H. Teigen
author_sort Gideon Keren
collection DOAJ
description In many situations of indeterminacy, where people agree that no decisive arguments favor one alternative to another, they are still strongly opposed to resolving the dilemma by a coin toss. The robustness of this judgment-decision discrepancy is demonstrated in several experiments, where factors like the importance of consequences, similarity of alternatives, conflicts of opinion, outcome certainty, type of randomizer, and fairness considerations are systematically explored. Coin toss is particularly inappropriate in cases of life and death, even when participants agree that the protagonists should have the same chance of being saved. Using a randomizer may seem to conflict with traditional ideas about argument-based rationality and personal responsibility of the decision maker. Moreover, a concrete randomizer like a coin appears more repulsive than the abstract principle of using a random device. Concrete randomizers may, however, be admissible to counteract potential partiality. Implications of the aversion to use randomizers, even under circumstances in which there are compelling reasons to do so, are briefly discussed.
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spelling doaj.art-e6ebd27d29cb4ff18107aea49f613b4d2023-09-02T13:36:27ZengCambridge University PressJudgment and Decision Making1930-29752010-04-015283101Decisions by coin tossGideon KerenKarl H. TeigenIn many situations of indeterminacy, where people agree that no decisive arguments favor one alternative to another, they are still strongly opposed to resolving the dilemma by a coin toss. The robustness of this judgment-decision discrepancy is demonstrated in several experiments, where factors like the importance of consequences, similarity of alternatives, conflicts of opinion, outcome certainty, type of randomizer, and fairness considerations are systematically explored. Coin toss is particularly inappropriate in cases of life and death, even when participants agree that the protagonists should have the same chance of being saved. Using a randomizer may seem to conflict with traditional ideas about argument-based rationality and personal responsibility of the decision maker. Moreover, a concrete randomizer like a coin appears more repulsive than the abstract principle of using a random device. Concrete randomizers may, however, be admissible to counteract potential partiality. Implications of the aversion to use randomizers, even under circumstances in which there are compelling reasons to do so, are briefly discussed.http://journal.sjdm.org/10/10203/jdm10203.pdfcoin tossrandomizersequipoisedecision aversion.NAKeywords
spellingShingle Gideon Keren
Karl H. Teigen
Decisions by coin toss
Judgment and Decision Making
coin toss
randomizers
equipoise
decision aversion.NAKeywords
title Decisions by coin toss
title_full Decisions by coin toss
title_fullStr Decisions by coin toss
title_full_unstemmed Decisions by coin toss
title_short Decisions by coin toss
title_sort decisions by coin toss
topic coin toss
randomizers
equipoise
decision aversion.NAKeywords
url http://journal.sjdm.org/10/10203/jdm10203.pdf
work_keys_str_mv AT gideonkeren decisionsbycointoss
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