Midparent
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In human genetics the midparent value of a trait is defined as the average of the trait value of the father and a scaled version of that of the mother. This value can be used in a study to analyze the data set without heeding sex effects. Studying quantitative traits in heritability studies may be complicated by sex differences observed for the trait. Well-known examples include studies of humans' height, whose midparent value h mp is given by: : h_{mp}=\frac{h_f+(1.08\times h_m)}{2} where h f is the father's height, and h m the mother's. The coefficient 1.08 serves as a scaling factor. After the 1.08 scaling, the mean of the mother's height is the same as that of the father's, and the variance is closer to the father's; in this way, sex difference can be ignored.
In human genetics the midparent value of a trait is defined as the average of the trait value of the father and a scaled version of that of the mother. This value can be used in a study to analyze the data set without heeding sex effects. Studying quantitative traits in heritability studies may be complicated by sex differences observed for the trait. Well-known examples include studies of humans' height, whose midparent value h mp is given by: h_{mp}=\frac{h_f+(1.08\times h_m)}{2} where h f is the father's height, and h m the mother's. The coefficient 1.08 serves as a scaling factor. After the 1.08 scaling, the mean of the mother's height is the same as that of the father's, and the variance is closer to the father's; in this way, sex difference can be ignored. ==References==
Text derived from https://en.wikipedia.org/w/index.php?oldid=1189412833 under CC BY-SA 4.0; modifications have been made.