Kruskal Wallis Output

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hweigner
Posts: 1
Joined: Tue Nov 22, 2011 11:14 pm

Kruskal Wallis Output

Postby hweigner » Tue Nov 22, 2011 11:38 pm

Hi,

I'm using SPSS 19 and am having problems with my KW test. I'm comparing differences of metal concentrations in fish tissue between 6 sites for 10 metals. The Kruskal Wallis output shows one test result for the first metal, which is what I expected and when I look at the pairwise comparisons, they show the post hoc differences between sites, again what I expected. When I look at the 3rd metal, there are three test results, before I even look at the pairwise comparisons. By the time I get to the 10th metal, there are 21 test results. I'm not sure why SPSS is giving me such a difference in number of tests between metals. Are they iterations? How do I know which test result to report?

Thanks
GerineL
Moderator
Posts: 1477
Joined: Tue Jun 10, 2008 4:50 pm

Re: Kruskal Wallis Output

Postby GerineL » Thu Nov 24, 2011 9:26 am

including output would help.

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