On Tue, 3 Apr 2007, Rick Froman went:
all the textbooks I have used talk about HSD as a post hoc test that is only appropriate to use after finding significance with an ANOVA. Do you have something I could reference to support this?
I've heard that argument (that Tukey's HSD is a standalone test) several times over the past ten years, and even though I haven't generally abided by it, I think it may be correct. Here's a cite: Gregory R. Hancock and Alan J. Klockars. The quest for alpha: developments in Multiple Comparison Procedures in the quarter century since Games (1971). Review of Educational Research 66(3): 269-306, 1996. I don't have a copy of it, but here's a post from one of the authors: <http://www.math.yorku.ca/Who/Faculty/Monette/Ed-stat/0525.html> --David Epstein [EMAIL PROTECTED] --- To make changes to your subscription go to: http://acsun.frostburg.edu/cgi-bin/lyris.pl?enter=tips&text_mode=0&lang=english
