Thanks. Good point but "Pr t" is all that is provided in the Estimates table, which I assume is two tailed. Using proc mixed for other response variables, the same estimate statements produce an Estimates table has a column with Upper, Upper, Both, which seems correct, but I can not get glimmix to produce a similar table. Perhaps it is the method or link I using? I need the power of the one tailed test for other response variables, not the example below. Unless I am wrong, the contrast statements (e.g., 0 0 1 -1 -1 1) are not testing a directional difference, but a non-directional difference, right? Thanks
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