Search found 13 matches
- Wed Nov 03, 2021 12:27 pm
- Forum: Statistics
- Topic: Friedman & Paired Comparisons (Durbin-Conover)
- Replies: 4
- Views: 13659
Re: Friedman & Paired Comparisons (Durbin-Conover)
Dear Maurizio, Can I jump into this? Looking at the R script (in your print screen) one can see that the post-hoc test is `posthoc.friedman.conover.test(y=y, p.adjust="none")` from the PMCMR[/code] library. However, the test is named Durbin-Conover in jamovi. In he PMCMR there's also a Dur...
- Mon Oct 18, 2021 9:43 am
- Forum: Statistics
- Topic: Dwass-Steel-Critchlow-Fligner pairwise comparisons
- Replies: 13
- Views: 24425
Re: Dwass-Steel-Critchlow-Fligner pairwise comparisons
Thanks Maurizio, I just took a quick look. Just for the sake of learning, how should the `rows` argument in the .r.yaml file can be set so to print all lines in the multiple comparisons? two additional notes/questions: 1. Ca you set the additional multiple comparisons as check boxes instead of a lis...
- Wed Oct 13, 2021 12:28 pm
- Forum: Statistics
- Topic: Dwass-Steel-Critchlow-Fligner pairwise comparisons
- Replies: 13
- Views: 24425
Re: Dwass-Steel-Critchlow-Fligner pairwise comparisons
]progressing... but in need of help! [attachment=0]image_2021-10-13_132419.png[/attachment The FSA::dunnTest produces a list with results, and I guess I will have to loop trough the results for each line of the res object... but don't know how to do it... can someone point me out to some tutorial or...
- Wed Oct 13, 2021 9:18 am
- Forum: Statistics
- Topic: Dwass-Steel-Critchlow-Fligner pairwise comparisons
- Replies: 13
- Views: 24425
Re: Dwass-Steel-Critchlow-Fligner pairwise comparisons
Thanks Maurizio, Getting the Dunn module was pretty easy (still need to format the output table... when I get free time). But, what I would really like is to have the Dunn (and Connover) included natively in the jamovi non-parametric one way ANOVA. @Jonathan said he could incorporate , if I programm...
- Tue Oct 12, 2021 9:06 am
- Forum: Statistics
- Topic: Dwass-Steel-Critchlow-Fligner pairwise comparisons
- Replies: 13
- Views: 24425
Re: Dwass-Steel-Critchlow-Fligner pairwise comparisons
Cool Jonathon, It was pretty easy (following the tutorial instructions): (note: need to add the FSA library to the Imports: jmvcore (>= 0.8.5), R6, FSA in the DESCRIPTION file) image_2021-10-12_100029.png I do need help with two things: 1. How to incorporate the Dunn's test in the ANOVA > Non-parame...
- Tue Oct 12, 2021 7:56 am
- Forum: Statistics
- Topic: Dwass-Steel-Critchlow-Fligner pairwise comparisons
- Replies: 13
- Views: 24425
Re: Dwass-Steel-Critchlow-Fligner pairwise comparisons
Hi Jonathon, Sure, sample size and power differences do explain the discrepancy (not easy to explain to students and even researchers in the social sciences). ...But, if the omnibus test reveals significant differences one can "afford" more liberal tests like the Dunn's or even LSD on rank...
- Mon Oct 11, 2021 1:27 pm
- Forum: Statistics
- Topic: Dwass-Steel-Critchlow-Fligner pairwise comparisons
- Replies: 13
- Views: 24425
Re: Dwass-Steel-Critchlow-Fligner pairwise comparisons
Dear all, My 2c... I guess that either the Dunn's test or the Conover-Iman (similar to Dunn0s but using a t-distribution instead of the N(0,1) should be given (or having the possibility to select one like in the parametric ANOVA in jamovi). I am using jamovi to teach 1st year students and actually h...
- Mon Sep 27, 2021 10:49 am
- Forum: General
- Topic: Possible error in posthoc tests
- Replies: 11
- Views: 15124
Re: Possible error in posthoc tests
Dear Jonathan,
Can you please provide a reference for the p value calculation in the Tukey Posthoc test? Although the column is labeled "T" I think you are using the Q distribution, but I get different values using R ptukey function.
Thanks!
Can you please provide a reference for the p value calculation in the Tukey Posthoc test? Although the column is labeled "T" I think you are using the Q distribution, but I get different values using R ptukey function.
Thanks!
- Tue Sep 24, 2019 9:39 am
- Forum: Statistics
- Topic: What is the distribution used for the tukey's HSD test?
- Replies: 4
- Views: 4544
Re: What is the distribution used for the tukey's HSD test?
Thanks Jonathon, i will do do that
Best regards and thanks for Jamovi!
Best regards and thanks for Jamovi!
- Sun Sep 22, 2019 12:29 pm
- Forum: Statistics
- Topic: What is the distribution used for the tukey's HSD test?
- Replies: 4
- Views: 4544
Re: What is the distribution used for the tukey's HSD test?
Hi Jonathon, Thak you so much for the quick (sunday) repply. I see that you are using some tukey table to get the p-value: row[['ptukey']] <- tukey[index,'p.value'] I think there's some type of p*k*(k-1)/2 adustment for multiple corrections.. but I am not sure what the Tukey correction would be, War...