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Re: st: Wilcoxon Signed-Rank test.


From   "b.qureishi" <b.qureishi@ucl.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Wilcoxon Signed-Rank test.
Date   Mon, 27 Aug 2007 00:33:53 +0100

Thanks Maarten, most appreciated.

I did actually figure it out, and after re-reading my thread I do feel rather
silly. Nonetheless, thanks for getting back to me.

Kind Regards
Bilal

Quoting Maarten buis <maartenbuis@yahoo.co.uk>:

--- "b.qureishi" <b.qureishi@ucl.ac.uk> wrote:
I have normal and non normally distributed data. Im applying the
Wilcoxon signed-rank test on my non normal variables. However, how
do I compare and interpet my results againt other non normal
variables.

For example, my Z result for Non normal variable X is 3.82, and for
variable Y the Z value is 2.31.
Are you sure you have performed a signed-rank test(-signrank- in
Stata)? You should never get a result for one variable alone, the test
result is always a comparison of two variables.

So if you want to use to test whether the distribution of variable X is
the same as the distribution of variable Y you type:
signrank X = Y

Hope this helps,
Maarten


-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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