County-level IQ and fertility rates: A partial test of Differential-K theory

Autor: Brian B. Boutwell, Travis W. Franklin, Melissa A. Petkovsek, Raelynn Deaton, Amanda K. Tamplin, Kevin M. Beaver, Richard H. Lewis, J. C. Barnes
Rok vydání: 2013
Předmět:
Zdroj: Personality and Individual Differences. 55:547-552
ISSN: 0191-8869
DOI: 10.1016/j.paid.2013.04.018
Popis: Human intelligence (IQ) correlates with a number of important life outcomes ranging from mortality and morbidity to social rank and status. Noticeably absent from the literature, however, has been a unifying framework from which to examine why IQ should correspond to so many seemingly disparate outcomes. Rushton’s Differential-K theory represents a theoretical perspective capable of accounting for the role of IQ in understanding human flourishing. We tested predictions suggested by Differential-K theory by examining the association between IQ at the aggregate level and two life-history variables: parental investment and fertility rates. Our results provide tentative support for some of the predictions of Differential-K theory.
Databáze: OpenAIRE