jamovi

Hi guys,

First of all, congratulations for the amazing work!
I just wanted to ask whether do you have plans for improving the contrast options for ANOVA's? By "advanced" I don't mean the options we can find in SPSS (at least in previous versions) or JASP. I would like to see something similar to what we can find in STATISTICA, namely, to have the option to run all sorts of comparisons between all cells in any design (between, within, and mixed). If you had this option, I would probably just start using Jamovi.

Keep up with the good work.

Best,
Tomás

Hi Tomás,
Could you describe or send a screenshot of the contrast functionality in statistica (I don't have a copy)?

Cheers,
Ravi

Hi Ravi,

I did it via email.

Thanks!
Best,
Tomás

Hi,

I confirm that this feature (advanced contrast options) would be very useful !

For instance I teach statistics with a focus on ANOVA to 3rd year students and that's the only reason why I cannot use, for the moment, Jamovi...

Best regards

FYI: I notice that jamovi can already do post-hoc comparison of each cell mean to every other cell mean in a within-subject, between-subject, or mixed design. Does the current request for advanced contrast options go beyond that?

On a related note: I'm not aware of how a Tukey's, single error term, could be employed for a within-subject factorial, or for a mixed factorial ( I'm pretty sure that why SPSS won't do Tukey post-hoc tests in such circumstances). How do we find out what formulas jamovi uses?

FYI: I notice that jamovi can already do post-hoc comparison of each cell mean to every other cell mean in a within-subject, between-subject, or mixed design. Does the current request for advanced contrast options go beyond that?

Yes it goes beyond.

For instance if you have 2 variables such as Sex2 and Looks3 and you want for Males only to see if there is a difference betwween Look1 and Look2 combined vs Look3

Here are screenshots from Statistica with a contrast in an analysis with 3 variables

Just an update on this functionality. At the moment we are working on data recoding facilities which technically lets you do all these contrasts. Of course, it would be nicer to have this functionality directly in the analysis but I'm still figuring out the best way to do this UI-wise.

Maybe make a github issue so I won't forget about it: https://github.com/jamovi/jamovi/issues

Thank you for your answer.
The github issue is done !

Best