On Thu, 26 Sep 2002, Jan Malte Wiener wrote:

> i am looking for a way to correct for ties in signed-rank tests.
>   whats the easiest way to do so?

Easiest?  Use a statistical package that does it.  SPSS does, for example,
and I believe SAS does.  Reference manuals for other packages are not at
hand at the moment (I'm in the middle of moving from house to apartment).

If you aren't using a statistical package (and why not, then? one
wonders), simply convert the original data to ranks (easily done in any
standard package, and in the absence of a package, easily done by a
standard routine in your computer).  Then conduct a t-test on the ranks.
(This has been shown to be equivalent to the Wilcoxon signed-rank test,
aka the Mann-Whitney test, for example.)

                        -- Don.
 -----------------------------------------------------------------------
 Donald F. Burrill                                            [EMAIL PROTECTED]
 56 Sebbins Pond Drive, Bedford, NH 03110                 (603) 626-0816
 [Old address:  184 Nashua Road, Bedford, NH 03110       (603) 471-7128]

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