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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Genet Epidemiol. 2010 Dec;34(8):803–815. doi: 10.1002/gepi.20527

Fig. 3.

Fig. 3

Type I error for testing the null effect of a typed SNP on a quantitative trait at the 1% nominal significance level in the joint analysis involving a causal, untyped SNP under the cross-sectional design. The solid, dashed, and dotted curves pertain to MLE, IMP-DOS and IMP-MLG, respectively. SNP, single nucleotide polymorphism; MLE, maximum-likelihood estimator.