81. Sham, P.C., Zhao, J.H., Cherny, S., & Hewitt, J.K. (2000). Variance components QTL linkage analysis of selected and non-normal samples: Conditioning on trait values. Genetic Epidemiology, 19, S22-S28.

Standard variance-components QTL linkage analysis can produce an elevated rate of type 1 errors when applied to selected samples and non-normal data. Here we describe an adjustment that leads to a test that is valid in these samples.