Solved: LSMeans Tests between Student's t vs. Tukey HSD - JMP User Community

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Level I

Dec 6, 2018 03:42 PM 8050 views

Has anyone seen this result where Student's t letters are the same while Tukey HSD letters are different. I usually see visa versa. Any thought?

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Staff

Staff

Dec 6, 2018 03:57 PM (8045 views) | Posted in reply to message from nickki_s 12-06-2018

I would not perform any post hoc tests until I validated the assumptions of the model and addressed all the issues with the estimation.

Did you notice the warnings in the report of the variance components?
Did you notice that your model is over-specified and the fixed and random effects are confounded?
Did you notice that one of the random effects is zeroed?
How do you justify treating gender as a random effect?

I don't think that this analysis is quite ready for any post hoc tests.

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Staff

Staff

Dec 6, 2018 03:57 PM (8046 views) | Posted in reply to message from nickki_s 12-06-2018

I would not perform any post hoc tests until I validated the assumptions of the model and addressed all the issues with the estimation.

Did you notice the warnings in the report of the variance components?
Did you notice that your model is over-specified and the fixed and random effects are confounded?
Did you notice that one of the random effects is zeroed?
How do you justify treating gender as a random effect?

I don't think that this analysis is quite ready for any post hoc tests.