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Is luck on my side? Optimism, pessimism, and ambiguity aversion.
Q J Exp Psychol (Hove). 2009 Jun; 62(6):1079-87.QJ

Abstract

The influences of optimism and pessimism on ambiguity aversion were investigated in two tasks that manipulated the presence or absence of a potentially competitive experimenter. A total of 112 participants chose which option--ambiguous or known-risk--they preferred in the two slightly differing Ellsberg urns tasks. Optimism was measured using the Extended Life Orientation Test (ELOT). Highly optimistic people showed significantly less ambiguity aversion than less optimistic people when information was given that the number of balls was randomly determined. This pattern was present but less pronounced in the condition when the composition of the ambiguous urn could be interpreted as being influenced (rigged) by the experimenter. Pessimism was uninfluential. Perceptions of the situation, especially the degree of trust in the experimenter, were significantly influenced by the participants' optimism. People who do not have highly optimistic personalities tend to shy away from choosing ambiguous options. When ambiguity is clear, and trust issues are removed, people's optimistic outlook influences their degree of ambiguity aversion and thus their decisions.

Authors+Show Affiliations

School of Psychology, University of Leicester, Leicester, UK. bdp5@le.ac.uk

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19145538

Citation

Pulford, Briony D.. "Is Luck On My Side? Optimism, Pessimism, and Ambiguity Aversion." Quarterly Journal of Experimental Psychology (2006), vol. 62, no. 6, 2009, pp. 1079-87.
Pulford BD. Is luck on my side? Optimism, pessimism, and ambiguity aversion. Q J Exp Psychol (Hove). 2009;62(6):1079-87.
Pulford, B. D. (2009). Is luck on my side? Optimism, pessimism, and ambiguity aversion. Quarterly Journal of Experimental Psychology (2006), 62(6), 1079-87. https://doi.org/10.1080/17470210802592113
Pulford BD. Is Luck On My Side? Optimism, Pessimism, and Ambiguity Aversion. Q J Exp Psychol (Hove). 2009;62(6):1079-87. PubMed PMID: 19145538.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Is luck on my side? Optimism, pessimism, and ambiguity aversion. A1 - Pulford,Briony D, Y1 - 2009/01/08/ PY - 2009/1/16/entrez PY - 2009/1/16/pubmed PY - 2009/8/21/medline SP - 1079 EP - 87 JF - Quarterly journal of experimental psychology (2006) JO - Q J Exp Psychol (Hove) VL - 62 IS - 6 N2 - The influences of optimism and pessimism on ambiguity aversion were investigated in two tasks that manipulated the presence or absence of a potentially competitive experimenter. A total of 112 participants chose which option--ambiguous or known-risk--they preferred in the two slightly differing Ellsberg urns tasks. Optimism was measured using the Extended Life Orientation Test (ELOT). Highly optimistic people showed significantly less ambiguity aversion than less optimistic people when information was given that the number of balls was randomly determined. This pattern was present but less pronounced in the condition when the composition of the ambiguous urn could be interpreted as being influenced (rigged) by the experimenter. Pessimism was uninfluential. Perceptions of the situation, especially the degree of trust in the experimenter, were significantly influenced by the participants' optimism. People who do not have highly optimistic personalities tend to shy away from choosing ambiguous options. When ambiguity is clear, and trust issues are removed, people's optimistic outlook influences their degree of ambiguity aversion and thus their decisions. SN - 1747-0226 UR - https://www.unboundmedicine.com/medline/citation/19145538/Is_luck_on_my_side_Optimism_pessimism_and_ambiguity_aversion_ L2 - http://journals.sagepub.com/doi/full/10.1080/17470210802592113?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -