Skip to main content
. 2010 Oct 12;5(10):e13364. doi: 10.1371/journal.pone.0013364

Table 8. Example coding for the within-family test for association between deafness and speckling.

Individual Deaf* Speckled* Adjusted Deafness Adjusted Speckling
Dog 1 0 0 −0.5 −0.25
Dog 2 1 0 0.5 −0.25
Dog 3 1 1 0.5 0.75
Dog 4 0 0 −0.5 −0.25
Mean 0.5 0.25
*

Coding: 0 = absent, 1 = present.

The adjusted values are calculated by subtracting the family mean from the phenotypic value. The correlation between the adjusted values is a robust test of genetic association between the traits.