Kenward-Roger Degrees of Freedom Method

Check this option to use the Kenward-Roger method for computing denominator degrees of freedom for all hypothesis tests.

This method often provides more accurate tests for unbalanced experimental designs.

Caution: This method can be considerably more computationally intensive.

To Specify This Option:

8      Click within the check box.

Refer to the SAS documentation for PROC MIXED for more information.