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The effect of ignoring the correlation among siblings on the bias of the variance of a parent‐child regression coefficient
Author(s) -
DONNER A.
Publication year - 1980
Publication title -
annals of human genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.537
H-Index - 77
eISSN - 1469-1809
pISSN - 0003-4800
DOI - 10.1111/j.1469-1809.1980.tb00959.x
Subject(s) - correlation , statistics , variance (accounting) , regression , regression analysis , linear regression , correlation coefficient , mathematics , economics , geometry , accounting
Summary The bias arising from ignoring the sib‐sib correlation ρ 88 in estimating the variance of a parent‐child regression coefficient is investigated algebraically and using Monte Carlo simulation. It is found that the true variance can be seriously underestimated for moderate values of ρ 88 . Recommendations are given for removing this bias.