Apply VIF for genomic control

Check the box to apply the variance inflation factor for genomic control to the trend test (Devlin and Roeder, 1999). This is a method of controlling for population stratification, which can produce false positives. To calculate the VIF, marker variables selected as Null SNP Variables are used, or if none are selected, all the marker variables are used to compute this correction.

To Specify This Option:

8

Click within the check box.