Effect size of a Kruskal-Wallis test

[RHainez]

Hi,

When running an anova, jamovi provides several effect sizes but non when we run a Kruskal-Wallis test. Do you think it's possible to add this feature ?
There is a discussion on ResearchGate.net about this subject with the explanations on how to achieve such a value:

https://www.researchgate.net/post/Anyon ... s_analysis

Have a nice day

[jonathon]

oh yup, i'll take a look.

[coledavis]

epsilon squared (Tomczak and Tomcszak 2014).
k = kruskal.test(dv ~ iv, data = data)
k$statistic * (NROW(health) + 1)
/ (NROW(health) * NROW(health) - 1)
(used in my R book - https://vorpress.com/r/index.htm)

[coledavis]

epsilon squared (Tomczak and Tomcszak 2014).
k = kruskal.test(dv ~ iv, data = data)
k$statistic * (NROW(dv) + 1)
/ (NROW(dv) * NROW(dv) - 1)
(used in my R book - https://vorpress.com/r/index.htm)

[jonathon]

cheers cole.

[coledavis]

You're welcome. Other relevant material on this webpage:
https://www.researchgate.net/post/Anyon ... s_analysis

The original Tomczak and Tomczak article can be found here:
https://www.academia.edu/10618805/The_n ... ffect_size

[jonathon]

i've added this to the 1.0.1

cheers

[RHainez]

Thank you very much, it works!