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test for multiple comparison with not equal variance

sara_bergonzini

Community Trekker

Joined:

Oct 14, 2014

We have several groups of data that we'd need to compare with a parametric approach, but these groups don't have the same variance.

We're looking for a test  with multiple comparisons like the Tuckey one, but the options available in JMP suggest the applicability only for homoschedastic data, that is not our situation.

Is there any option available in JMP  for our needs?

We heard about Games-Howell test ( parametric- multiple comparison- not equal variance), but we didn't find any reference or comparable test in JMP.

Is there something readily available that we can use in JMP?

Thanks for help

Sara