Cited by 268Evolutionary Psychology and Human BehaviorAnimal Behavior and ReproductionPersonality Traits and Psychology

The K-factor, Covitality, and personality: A Psychometric Test of Life History Theory

Figueredo, Aurelio José, Vásquez, Geneva, Brumbach, Barbara Hagenah, Schneider, Stephanie M. R.·2007·Human Nature

Abstract

We present a psychometric test of life history theory as applied to human individual differences using MIDUS survey data (Brim et al. 2000). Twenty scales measuring cognitive and behavioral dimensions theoretically related to life history strategy were constructed using items from the MIDUS survey. These scales were used to construct a single common factor, the K-factor, which accounted for 70% of the reliable variance. The scales used included measures of personal, familial, and social function. A second common factor, Covitality, was constructed from scales for physical and mental health. Finally, a single general factor, Personality, was constructed from scales for the "Big Five" factors of personality. The K-factor, covitality factor, and general personality factor correlated significantly with each other, supporting the prediction that high K predicts high somatic effort and also manifests in behavioral display. Thus, a single higher-order common factor, the Super-K factor, was constructed that consisted of the K-factor, covitality factor, and personality factor.

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Crossref · 10.1007/bf02820846

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Authors
Figueredo, A. J., Vásquez, G., Brumbach, B. H., & Schneider, S. M. R.
Affiliations
University of Arizona (US)
Corresponding author
Figueredo, Aurelio José
Venue
Human Nature
Published
2007-03
Volume
18
Issue
1
Pages
47-73
ISSN
  • 1045-6767 (ISSN-L)
  • 1936-4776
OpenAlex
W2147377023
Cited by
268
References
3
Citations by year
2026: 7 · 2025: 11 · 2024: 10 · 2023: 5 · 2022: 14 · 2021: 17 · 2020: 24 · 2019: 13 · 2018: 25 · 2017: 32 · 2016: 13 · 2015: 17 · 2014: 14 · 2013: 8 · 2012: 16
FWCI
11.58
Type
journal article
Language
en
Open access
closed
Locations
  • Human Nature (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Evolutionary Psychology and Human Behavior
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Animal Behavior and Reproduction
  • Social Sciences › Psychology › Clinical Psychology › Personality Traits and Psychology
Keywords
K-factor, life history theory, covitality, personality, Big Five personality traits, individual differences, physical and mental health, psychometric scale

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