also posted to sci.stat.edu where the same message was posted. On Mon, 07 Feb 2000 09:00:45 +0100, Stefan Uhlig <[EMAIL PROTECTED]> wrote: > Suppose that you have a two-way ANOVA design where each of the two > factors has three or more levels.In the two way ANOVA there are no > interactions, so we want to test within each of the two factors which > level differs from the others. According to textbooks, this might be > done by a Tukey test first on level A and then on level B. However, is > the alpha-error still garuanteed if we perform two Tukey Tests on the > same data set ? Can you get two for the price of one? No. (How much space does your textbook want to devote to this topic?) If the textbook explanation of the logic is not clear, you might try the original references -- where the authors are the experts and have more pages available. -- Rich Ulrich, [EMAIL PROTECTED] http://www.pitt.edu/~wpilib/index.html =========================================================================== This list is open to everyone. Occasionally, people lacking respect for other members of the list send messages that are inappropriate or unrelated to the list's discussion topics. Please just delete the offensive email. For information concerning the list, please see the following web page: http://jse.stat.ncsu.edu/ ===========================================================================
