Table 2 Empirical type I error rate of the proposed test at the nominal 5% level when population stratification exists. A diallelic marker is completely linked to the QTL with HW equilibrium in an admixed population. Total 500 sibpairs (250/250) are selected from two subpopulations. p₁ and p₁ are frequencies of the rarer marker allele in the two subpopulations. d is the difference in trait means between two subpopulations.

From: A quantitative linkage score for an association study following a linkage analysis