Question about interpreting Tukey HSD table

Posted by C. Salmon on Oct 19, 2006; 2:53am
URL: http://spssx-discussion.165.s1.nabble.com/Question-about-interpreting-Tukey-HSD-table-tp1071574.html

Please forgive me if this is a silly question, but I can't find the
answer anywhere in my notes or texts from the two stats classes I took
long ago!

I have the following Tukey HSD table for a question from a course
evaluation. The question is, does the negative value in the Mean
Difference column mean anything? Does it indicate the direction of the
change? What would be my interpretation of this table in narrative
form?


Post-hoc Test Tukey's HSD for
Question 16, "The faculty member intellectually students."

I                   J                 Mean difference (I-J)     Significance
Fall 2003        Spring 2004       -.900                                 .020*
                Fall 2004          -.850                                 .046*
* The mean difference is significant at the .05 level.


Thanks so much, Christine
"desperately finishing the dissertation"