jamovi

I think i see a pattern in the previously attached file. I am attaching a screenshot. it seems like it do has to do something with filters, and the problem seems to extend to PCA component scores as well (there is a very high correlation between the component scores and the wrong sum scores, but ver...

Sometimes it does seem like it is the difference of the medians. But it didn't took me long to find an example where it is not the case.

(i attached the screenshot)

Emese

ah, the example i gave regarding reversed items is wrong in that if nobody gave answers 1, 2 or 7, than - of course - there is no need to reverse the score 2, since nobody gave that score. however, the problem persists if someone gives the score 4 in the example above. likert 1 - 7 observed minimum ...

Thank you for your quick reply. When i copied the relevant variables to a new dataset, it worked! However, in the original dataset i still get the same. Maybe it has to do something with filters? I attached the file. I deleted all the unnecessairy variables, only those remained that are used in the ...

Dear Jamovi community, i am using Jamovi version 1.8.1.0., and i am excited to see that in the Reliability Analysis menu there is an option to SAVE sum scores and mean scores. I tried it out immeadiately, i have four items i analysed with PCA and they combine into a single component, and there are n...

Hello, i am wondering how the mean difference is calculated for Mann Whitney U test. It is not the same as the difference between means, which is okay, since the comparison is not based on means. it is also not the difference between medians (which is also okay, since, strictly speaking, Mann Whitne...