Skip to main content
Article
Only In America: Cold Winters Theory, Race, IQ, And Well-Being
Intelligence
  • Bryan J. Pesta, Cleveland State University
  • Peter J. Poznanski, Cleveland State University
Document Type
Article
Publication Date
9-1-2014
Keywords
  • intelligence; cold winter's theory; temperature; race; United States
Disciplines
Abstract

ColdWinters Theory (CWT; Lynn, 1991) offers a viable explanation for race differences in intelligence. It proposes that IQ gaps exist because of different evolutionary pressures faced by the ancestral humanswho left Africa, comparedwith thosewho remained. Support for CWT comes by showing correlations between national temperature and IQ. Here we test whether temperature correlates with IQ (and other well-being variables) across the 50 U.S. states. Although human evolution is recent, copious and regional (Wade, 2014), insufficient time has passed for it to have operated on non-native residents of the USA. Instead, CWTmust predict no difference—or remain agnostic—on the existence of state-level correlations between temperature and IQ. Nonetheless, even after controlling for race, temperature strongly predicts state: IQ, religiosity, crime, education, health, income and global well-being. Evolution is therefore not necessary for temperature and IQ/well-being to co-vary meaningfully across geographic space.

DOI
10.1016/j.intell.2014.07.009
Version
Publisher's PDF
Citation Information
Pesta, B.J. & Poznanski, P.J. (2014). Only in America: Cold Winters Theory, race, IQ and well-being. Intelligence, 46, 271-274. doi:10.1016/j.intell.2014.07.009