Abstract
IN the current issue of Biometrika (vol. xiv. pts. i. and ii.) Dr. Kirstine Smith discusses the standard deviation of a coefficient of correlation computed from data derived from classes, members of which are mutually correlated, with special reference to the case of fraternal and parental correlations calculated from entries of siblings. She finds, inter alia, that the best determination of a fraternal correlation from a given number of observations is obtained by taking (1 +1/r) offspring individuals from each family, where r is the fraternal correlation.
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Biometric Studies. Nature 110, 827 (1922). https://doi.org/10.1038/110827b0
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DOI: https://doi.org/10.1038/110827b0