Phenotypic assortative mating vs. social homogamy among Japanese and Chinese parents in the Hawaii Family Study of Cognition |
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Authors: | Craig T Nagoshi Ronald C Johnson Frank M Ahern |
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Institution: | (1) Institute for Behavioral Genetics, University of Colorado, Campus Box 447, 80309 Boulder, Colorado;(2) Behavioral Biology Lab, University of Hawaii, Snyder Hall 115, 96822 Honolulu, Hawaii;(3) College of Human Development, The Pennsylvania State University, Henderson Human Development Building S211, 16802 University Park, Pennsylvania |
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Abstract: | Among the subjects of Japanese and Chinese ancestries in the parent generation in the Hawaii Family Study of Cognition were 47 pairs of siblings. Since data were available on the spouses of these siblings, this allowed for tests of whether spouse correlations of educational and occupational attainment and cognitive abilities were due to active phenotypic assortment and/or shared social background (social homogamy). Comparisons of sibling correlations, spouse correlations, and correlations between the spouse of one sibling and the spouse of the other sibling, as well as the results of model-fitting analyses, suggest that spouse correlations for education are determined by both phenotypic assortment and social homogamy, spouse correlations for occupational attainment by phenotypic assortment, and spouse correlations for verbal ability mostly by social homogamy.The results reported here were made possible by a collaboration of a group of investigators (G. C. Ashton, R. C. Johnson, M. P. Mi, and M. N. Rashad at the University of Hawaii and J. C. DeFries, G.E. McClearn, S. G. Vandenberg, and J. R. Wilson at the University of Colorado) supported by NSF Grant GB-34720 and Grant HD-06669 from the National Institute of Child Health and Human Development. |
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Keywords: | assortative mating phenotypic assortment social homogamy education occupation cognitive abilities |
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