## Kruskal-Wallis Test

### Kruskal-Wallis Test

I am told that I need to use the Kruskal-Wallis
Test to find the mean. However, I have no idea of
how to interpret the results. What exactly is the
mean rank, for example of income, telling me?
Thanks!

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### Kruskal-Wallis Test

> I am told that I need to use the Kruskal-Wallis
> Test to find the mean. However, I have no idea of
> how to interpret the results. What exactly is the
> mean rank, for example of income, telling me?
> Thanks!

Basically a non-parametric alternative to one-way ANOVA--it's a
generalization of the Mann-Whitney U test (AKA Wilcoxon rank sum)  for
comparing two distributions.  It assumes the criterion is measured on an
ordinal scale of measurement and tests the hypothesis that J population
distributions are equal.  Basically all observations for the J groups are
pooled and rank ordered from low to high, the test is based on a comparison
of the sum of ranks within each of the J groups.  A mean rank is simply the
mean of the rank transformed distribution.

,Dear Sirs

I use Spss version 7.00 for Windows in order to test whether there is a
linear trend between 3 different groups.
I use the Noneparametric test command with the K independent tests
subcommand.
As a result i receive the Kruskal-Wallis value but not the Cuzick's value
for linear trend.
Does anybody know how to obtain the Cuzick's test value?
Thank you
Israel Schorr