Format

Send to

Choose Destination
Psychol Sci. 2015 Aug;26(8):1295-303. doi: 10.1177/0956797615588195. Epub 2015 Jul 14.

When Knowledge Knows No Bounds: Self-Perceived Expertise Predicts Claims of Impossible Knowledge.

Author information

1
Department of Psychology, Cornell University ssa62@cornell.edu.
2
Department of Marketing, Tulane University.
3
Department of Psychology, Cornell University.

Abstract

People overestimate their knowledge, at times claiming knowledge of concepts, events, and people that do not exist and cannot be known, a phenomenon called overclaiming. What underlies assertions of such impossible knowledge? We found that people overclaim to the extent that they perceive their personal expertise favorably. Studies 1a and 1b showed that self-perceived financial knowledge positively predicts claiming knowledge of nonexistent financial concepts, independent of actual knowledge. Study 2 demonstrated that self-perceived knowledge within specific domains (e.g., biology) is associated specifically with overclaiming within those domains. In Study 3, warning participants that some of the concepts they saw were fictitious did not reduce the relationship between self-perceived knowledge and overclaiming, which suggests that this relationship is not driven by impression management. In Study 4, boosting self-perceived expertise in geography prompted assertions of familiarity with nonexistent places, which supports a causal role for self-perceived expertise in claiming impossible knowledge.

KEYWORDS:

inference; judgment; knowledge level; open data; thinking

PMID:
26174782
DOI:
10.1177/0956797615588195
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Atypon
Loading ...
Support Center