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The Estimation of Psychological Genetic Differences between Classes and Races

Published online by Cambridge University Press:  29 January 2018

P. A. P. Moran*
Affiliation:
Institute of Advanced Studies, Australian National University, Box 4, P.O., Canberra 2600, Australia

Extract

For genetic characteristics controlled by a single locus which are such that the degree of dominance is not dependent on the environment, statistical methods of determining the mode of inheritance and the gene frequencies are now well understood in principle. If, however, there is incomplete penetrance, depending on the environment (taken in the wide sense), the problem becomes much more difficult, especially in human genetics. The situation is even worse if the character is dependent on several or many loci and such characteristics are often very dependent on environmental factors. This seems to occur in man in some psychiatric diseases and is certainly the case for intelligence. The genetical analysis of such phenomena is very difficult, and it is essential that the mathematical and statistical bases of such investigations be carefully understood by anyone who undertakes such work.

Type
Research Article
Copyright
Copyright © Royal College of Psychiatrists, 1974 

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References

Cochran, W. G. (1968). ‘The effectiveness of adjustment by subclassification in removing bias in observational studies.’ Biometrics, 24, 295313.Google Scholar
Fisher, R. A. (1918). ‘The correlation between relatives on the supposition of Mendelian inheritance.’ Trans. Roy. Soc. Edinburgh, 52, 399433. Republished as Eugenics Laboratory Memoir, No. 41 (Cambridge University Press (1966), with a commentary by P. A. P. Moran and C. A. B. Smith.CrossRefGoogle Scholar
Gibson, J., and Light, P. (1967). ‘Intelligence among university scientists.’ Nature, 213, 441–3.CrossRefGoogle ScholarPubMed
Hare, E. H. (1962). ‘The distribution of mental illness in the community’, in Aspects of Psychiatric Research (ed. Richter, D. and others)., pp. 3665. Oxford University Press.Google Scholar
Hare, E. H., Price, J. S., and Slater, E. (1972). ‘Parental social class in psychiatric patients.’ Brit. J. Psychiat., 121, 515–24.Google Scholar
Moran, P. A. P. (1971). ‘Estimating structural and functional relationships.’ J. Multivar. Anal., 1, 232–55.Google Scholar
Moran, P. A. P. (1972). ‘Theoretical considerations on schizophrenia genetics’, in Genetic Factors in ‘Schizophrenia’ (ed. Kaplan, A.), pp. 294309. Thomas.Google Scholar
Scarr-Salapatek, S. (1971). ‘Unknowns in the IQ equation.’ Science, 174, 1223–8.Google Scholar
Shuey, A. (1966). The Testing of Negro Intelligence. New York: Social Science Press.Google Scholar
Wilson, S. R. Papers on assortative mating in course of publication.Google Scholar
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