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Intelligence, Personality and Tolerance of Ambiguity
Stephen Cuppello1,2, Luke Treglown1,2, Adrian Furnham3
1Department of Psychology, City University of London, London WCIE 7HX, UK.
Journal of Intelligence
|June 27, 2023
Summary
This study found tolerance of ambiguity, not compensation or investment theories, significantly correlates with intelligence (IQ). Personality differences between sexes were more pronounced than IQ differences.
Area of Science:
- Psychology
- Cognitive Science
- Individual Differences
Background:
- Prominent theories suggest personality traits influence intelligence through compensation or investment mechanisms.
- Understanding the relationship between personality and cognitive abilities is crucial in psychology.
- Sex differences in personality and intelligence are well-documented but complex.
Purpose of the Study:
- To test the compensation and investment theories linking personality traits to intelligence.
- To investigate sex differences in personality and intelligence.
- To identify specific personality traits that correlate with intelligence.
Main Methods:
- Administered the Hogan Personality Inventory (HPTI) and the General Intellectual Ability (GIA) test to 3836 adults.
- Utilized correlational and regression analyses to examine relationships between personality traits and IQ scores.
- Analyzed sex differences in both personality and intelligence measures.
Main Results:
- Found more significant sex differences in personality traits compared to intelligence scores.
- Observed limited evidence supporting the compensation or investment theories.
- Identified tolerance of ambiguity as a consistent, positive correlate of IQ at both facet and domain levels.
Conclusions:
- Tolerance of ambiguity emerges as a key, often overlooked, personality correlate of intelligence.
- The study highlights the nuanced relationship between personality and cognitive abilities, challenging existing theories.
- Acknowledges study limitations and discusses implications for future research on personality and IQ.
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