Timeline for Is it possible to calculate a confidence interval related to a significant p value from the kruskal wallis test?
Current License: CC BY-SA 4.0
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| when toggle format | what | by | license | comment | |
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| Nov 3, 2018 at 5:28 | history | edited | ashamc | CC BY-SA 4.0 |
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| Nov 3, 2018 at 5:16 | history | edited | ashamc | CC BY-SA 4.0 |
added 662 characters in body
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| Oct 19, 2018 at 5:14 | vote | accept | ashamc | ||
| Sep 27, 2018 at 11:36 | answer | added | Frank Harrell | timeline score: 4 | |
| Sep 27, 2018 at 9:37 | answer | added | BruceET | timeline score: 2 | |
| Sep 27, 2018 at 5:40 | comment | added | Glen_b | ctd... If something like that is not what you seek, you'll have to explain clearly what specific quantity you need a confidence interval for; is it possible to point to a specific statement by the journal about these requirements? Note that none of the intervals you would generate will be either a confidence interval for a median, or a difference of medians. | |
| Sep 27, 2018 at 2:41 | comment | added | Glen_b | You can do what's effective a joint confidence region of location differences, but with three groups you'd be looking at two differences (e.g. G2 vs G1 and G3 vs G1). An example of a joint region is here stats.stackexchange.com/questions/76059/… ... alternatively you could set up some (marginal or joint) contrasts of interest and plot the acceptance regions for those (which would correspond to confidence intervals). ... ctd | |
| Sep 27, 2018 at 2:32 | comment | added | jbowman | Are you sure they require it in this case? For coefficients or other parameter estimates, it makes sense, but this is not a parameter estimate. Perhaps reporting where the 95th percentile of the $\chi^2_{n-1}$ distribution is as well as the KW test statistic itself would do the job (the $\chi^2_{n-1}$ distribution is the asymptotic distribution of the KW test statistic under the null hypothesis with $n$ groups.) | |
| Sep 27, 2018 at 2:00 | history | asked | ashamc | CC BY-SA 4.0 |