A commentary on Satoshi Kanazawa's study of intelligence and health

Authors: Alemayehu, Demissie1; Sineshaw, Tilahun2

Source: British Journal of Health Psychology, Volume 12, Number 2, May 2007 , pp. 185-190(6)

Publisher: British Psychological Society

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Abstract:

We provide an exposition of the major conceptual, methodological and statistical shortcomings of the paper by Kanazawa (2006), concerning the relationship between intelligence and life expectancy. It is argued that the validity and robustness of the conclusions of the paper are compromised by fundamental problems, including failure to present competing views with fair balance, use of samples of convenience to draw conclusions about populations, performing tests of significance when there is no theoretical basis to do so and confusing association with causation. Given the far-reaching socio-economic implications of the conclusions, it is suggested that the messages of the paper be critically evaluated in relation to the major limitations of the research.

Document Type: Research article

DOI: 10.1348/135910707X180224

Affiliations: 1: Department of Statistics, Columbia University, New York, USA 2: School of Social Science and Human Services, Ramapo College of New Jersey, USA

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