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nickki_s

Community Member

Joined:

Sep 19, 2014

LSMeans Tests between Student's t vs. Tukey HSD

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?

 

 

1 ACCEPTED SOLUTION

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markbailey

Staff

Joined:

Jun 23, 2011

Solution

Re: LSMeans Tests between Student's t vs. Tukey HSD

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.

Learn it once, use it forever!
1 REPLY
Highlighted
markbailey

Staff

Joined:

Jun 23, 2011

Solution

Re: LSMeans Tests between Student's t vs. Tukey HSD

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.

Learn it once, use it forever!