Howdy! I'm looking for methods of testing differences in distributions between groups scored on an ordinal scale.
I have 4 groups of subjects scored daily for 72 days on a 1-7 scale. I would like to see whether there is a difference between groups in terms of the maximum score achieved over these 72 days. I have taken the maximum score for each subject and created a crosstab table. (Counts of max. score by group.) Since the data are ordinal, I used Mantel-Haenszel measurements for general association as opposed to simply the Chi-Square value. I found that there is an association between maximum score achieved and group membership. I would now like to determine which groups are statistically different, and which are not. I'm looking for a way to compare these groups in a method similar to a multiple comparisons method that you would do for an ANOVA. E.G. I found they're different, now which ones are different? However, I'm having difficulty finding any way to do this. Any thoughts would be greatly appreciated. Thanks! . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
