Search found 286 matches
- Tue May 21, 2024 4:48 pm
- Forum: Help
- Topic: Robust Anova
- Replies: 3
- Views: 44
Re: Robust Anova
Hi. In an ANOVA, each cell must include at least two cases (so that a within-cell variance can be computed). In contrast, you have one ANOVA cell in which the n is less than 2. See below.
- Mon May 20, 2024 1:56 pm
- Forum: Statistics
- Topic: Logistic regression analysis for two treatment groups and two time points?
- Replies: 13
- Views: 634
Re: Logistic regression analysis for two treatment groups and two time points?
Sounds like you need to include A vs B as a factor, *and* you need to examine the interactions of that factor with other predictors.
- Mon May 20, 2024 11:54 am
- Forum: Statistics
- Topic: Logistic regression analysis for two treatment groups and two time points?
- Replies: 13
- Views: 634
- Sat May 18, 2024 10:12 pm
- Forum: Statistics
- Topic: Logistic regression analysis for two treatment groups and two time points?
- Replies: 13
- Views: 634
Re: Logistic regression analysis for two treatment groups and two time points?
If you're not interested in comparing treatment group A to treatment group B (and if you think your audience won't be interested in that comparison either), then you could simply code the data so that there's no distinction between A and B, and do just one analysis. (Doing two separate analysis halv...
- Tue May 14, 2024 1:56 am
- Forum: Help
- Topic: jTransform long to wide results in incorrect new dataset - Help or Bug?
- Replies: 2
- Views: 383
- Mon May 06, 2024 9:06 pm
- Forum: Help
- Topic: Post hoc tests in Walrus (Robust ANOVA)
- Replies: 6
- Views: 4334
Re: Post hoc tests in Walrus (Robust ANOVA)
Oh. OK. So it looks like the other value of supp (i.e., "VC") is excluded completely from the interaction post-hoc test. So probably best to just remove the "interaction" post-hoc test table since, for whatever reason, it doesn't actually work right.
- Mon May 06, 2024 2:45 pm
- Forum: Help
- Topic: Post hoc tests in Walrus (Robust ANOVA)
- Replies: 6
- Views: 4334
Re: Post hoc tests in Walrus (Robust ANOVA)
I would also have doubts. For example, in a Walrus (bootstrap) robust ANOVA on the Tooth Growth Data, I think there should be 15 post-hoc comparison. But the output produces only 3.
- Wed May 01, 2024 2:34 pm
- Forum: General
- Topic: Reorder output
- Replies: 15
- Views: 30022
Re: Reorder output
I found a non-technical work-around: I simply include a 'table of contents' telling the reader wear to look in the numbered-but-out-of-order analyses. For example . . . RESULTS Contents Response Time General Descriptives for RT (#5) ANOVA of RT (#3) Rj planned comparisons for ANOVA of RT (#6) Accura...
- Thu Apr 25, 2024 4:09 pm
- Forum: Statistics
- Topic: Independant Samples t-Test: Assumption Checks?
- Replies: 3
- Views: 1065
Re: Independant Samples t-Test: Assumption Checks?
I believe it's the residuals for the entire model that need no be normally distributed. https://statistics.laerd.com/statistical-guides/independent-t-test-statistical-guide.php#:~:text=Assumption%20of%20normality%20of%20the,give%20you%20the%20same%20result. Also, since the Shapiro-Wilk test is a sig...
- Wed Apr 24, 2024 1:16 pm
- Forum: General
- Topic: seolmatrix
- Replies: 5
- Views: 1020
Re: seolmatrix
What I've found is that many institutional computers have app blockers that may allow core aspects of jamovi to run while blocking other aspects. I've found that this blocking is especially likely to affect modules. Moreover, I've found seolmatrix to be more affected than any other jamovi module I u...