Projects per year
Abstract
Research on the relations of personality traits to intelligence has primarily been concerned with linear associations. Yet, there are no a priori reasons why linear relations should be expected over nonlinear ones, which represent a much larger set of all possible associations. Using 2 techniques, quadratic and generalized additive models, we tested for linear and nonlinear associations of general intelligence (g) with 10 personality scales from Project TALENT (PT), a nationally representative sample of approximately 400,000 American high school students from 1960, divided into 4 grade samples (Flanagan et al., 1962). We departed from previous studies, including one with PT (Reeve, Meyer, & Bonaccio, 2006), by modeling latent quadratic effects directly, controlling the influence of the common factor in the personality scales, and assuming a direction of effect from g to personality. On the basis of the literature, we made 17 directional hypotheses for the linear and quadratic associations. Of these, 53% were supported in all 4 male grades and 58% in all 4 female grades. Quadratic associations explained substantive variance above and beyond linear effects (mean R 2 between 1.8% and 3.6%) for Sociability, Maturity, Vigor, and Leadership in males and Sociability, Maturity, and Tidiness in females; linear associations were predominant for other traits. We discuss how suited current theories of the personality-intelligence interface are to explain these associations, and how research on intellectually gifted samples may provide a unique way of understanding them. We conclude that nonlinear models can provide incremental detail regarding personality and intelligence associations.
Original language | English |
---|---|
Pages (from-to) | 638-654 |
Number of pages | 17 |
Journal | Journal of Personality and Social Psychology |
Volume | 106 |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 2014 |
Keywords / Materials (for Non-textual outputs)
- intelligence-personality associations
- intelligence
- personality
- Project TALENT
- quadratic associations
- BRIGGS TYPE INDICATOR
- BIG 5
- MEASUREMENT INVARIANCE
- ABILITY
- TRAITS
- MODEL
- IQ
- EXTROVERSION
- DIMENSIONS
- INTERESTS
Fingerprint
Dive into the research topics of 'Linear and Nonlinear Associations Between General Intelligence and Personality in Project TALENT'. Together they form a unique fingerprint.Projects
- 3 Finished
-
RA2661 Centre for Cognitive Ageing and Cognitive Epidemiology Phase 2. Main Budget.
Deary, I., Gale, C., Holmes, M., Logie, P., Maclullich, A., Porteous, D., Seckl, J., Starr, J., Wardlaw, J. & Okely, J.
1/09/13 → 31/08/19
Project: Research
-
-
MRC Centre for Cognitive Ageing and Cognitive Epidemiology
Deary, I., Holmes, M., Logie, P., McCulloch, J., Porteous, D., Roberts, N., Seckl, J., Starr, J. & Wardlaw, J.
1/09/08 → 31/08/13
Project: Research