Nonparametric post hocs

Hi all,

I am analyzing behavioral data from experiments I have conducted. I have used the Kruskal-Wallis nonparametric ANOVA to identify if differences between groups exist.

My question is: what is the appropriate post hoc analysis test for the following conditions?

1. Comparison of controls to two other groups
2. Unequal Ns
3. nonparametric data

Thanks a bunch for any help,



TS Contributor
This was actually part of my MS thesis-

The tests I used were:

Tukey vs. Nemenyi
Bonferroni-Dunn vs. Nonparametric Bonferroni-Dunn
Fisher LSD vs Mann-Whitney U Test
Fisher LSD vs Conover

There are others that cover what you described.

Here are some references I used in my thesis - any decent college library should have these nonparametric textbooks:

Conover - Practical Nonparametric Statistics
Hollander and Wolfe - Nonparametric Statistical Methods
Zar - Biostatistical Analysis
Pett - Nonparametric Statistics for Health Care Research
Sheskin - Handbook of Parametric and Nonparametric Statistical Procedures
Toothaker - Multiple Comparisons for Researchers
Siegel, Castellan - Nonparametric statistics for the behavioural sciences