Hi!

How can I perform a post hoc analysis following Kruskal-Wallis-Testing using

SPSS 10.0?

Thank you!.

V Thieme

Hi!

How can I perform a post hoc analysis following Kruskal-Wallis-Testing using

SPSS 10.0?

Thank you!.

V Thieme

> Hi!

> How can I perform a post hoc analysis following Kruskal-Wallis-Testing using

> SPSS 10.0?

> Thank you!.

> V Thieme

comparisons, and also all contrasts of k-1 treatments with a control. If

memory serves, these are so-called "large-sample" procedures (i.e.,

z-tests are used).

Siegel, S., & Castellan, N.J. (1988). Nonparametric statistics for the

behavi*sciences (2nd Ed.). New York, NY: McGraw-Hill.

If you're talking about pair-wise comparisions, another option that has

been suggested here in the past is to just use the Mann-Whitney U test

(or the equivalent Wilcoxon rank-sum test).

--

Bruce Weaver

Homepage: http://www.veryComputer.com/

1. Macro Required > Nonparametric Tests > Post hoc comparisons for Kruskal Wallis test

Hi

I was wondering if anyone has a macro to perform a post hoc analysis (such

as Dunn's Test) for a Kruskal-Wallis Test. Surprisingly SPSS will perform

the KW test, but even in 11.5 does not provide a means of analysing which

pairs of groups differ significantly. I note the SPSS web site suggests

performing a series of Mann Whitney tests, but Dunn's Test (Neave and

Worthington, 1988, Distribution Free Statistics, Unwin Hyman: London)

provides a more acceptable resolution. I note that Minitab provides this

functionality since version 9 or 10.

If anyone has a macro/script to perform these multiple comparisons then it

would be greatly appreciated.

Yours faithfully

Peter Edwards

University of Sydney, Australia

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