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Help My days of algebraic manipulation are behind me .... I have an analysis where the planned adjustment for multiplicity was Bonferroni. The analysis (done years ago and by someone else) used a Scheffe's adjustment. Initially, I thought it was acceptable; "just another adjustment". Then I thought it was perhaps an issue, as Scheffe is less conservative (although both appear to be very conservative). Now, I am wondering if Bonferroni is perhaps a special case of Scheffe [where every pair is contrasted]. However, the days when I could take these things back to first principles are gone. Is there anyone out there who could compare them, or simply comment?