topic Std0 Calculation for the Wilcoxon/Kruskal Wallis Tests (Rank Sum) in Discussions

Std0 Calculation for the Wilcoxon/Kruskal Wallis Tests (Rank Sum)

Con_Stats — Thu, 17 Jul 2025 09:07:41 GMT

Consider the output below:

Generated on the following dataset:

I can manually calculated up to and including the Score mean and understand the steps. I cannot recreate the (Mean-Mean0)/Std0 value. See work through below:

Can someone please outline the manual calculation (Formula) for the Std0 value as well as show there workings to generate the (Mean-Mean0)/ Std0 Value?

Thanks in advance.

Re: Std0 Calculation for the Wilcoxon/Kruskal Wallis Tests (Rank Sum)

jthi — Fri, 11 Jul 2025 16:00:03 GMT

Click "?" from toolbar and then click on the report with the help tool and it will bring you to JMP Help. These generally get you quite close to your answer regarding the platforms and their calculations but sometimes you might have to look a bit deeper into the documentation.

Basic Analysis > Oneway Analysis > Oneway Analysis Reports > Nonparametric Test Reports

Re: Std0 Calculation for the Wilcoxon/Kruskal Wallis Tests (Rank Sum)

MRB3855 — Mon, 14 Jul 2025 10:03:39 GMT

Hi @Con_Stats : In particular, see Var(S) here. Std0 is the square root of Var(S).

https://www.jmp.com/support/help/en/18.2/#page/jmp/statistical-details-for-nonparametric-test-statistics.shtml#