Tukey Kramer - Tukey HSD test Unequal Group Sizes

CK

I have read in a reference book for R that the title 'Tukey Kramer' refers to the Tukey tests where there are unequal group sizes.  The inference being that Tukey HSD requires groups to be of equal size.  JMP refers to 'Tukey HSD (also called Tukey Kramer)' in the section

Basic Analysis > Oneway Analysis > Compare Means > All Pairs, Tukey HSD . Does JMP demand equal group sizes in each case?

Peter_Bartell

See the attached journal. Using Bigclass.jmp, you can see that the Fit Y by X, Compare Means -> All Pairs, Tukey HSD, for height by sex, does not require equal group sizes.

Fit Y by X.jrn