EJ
About
- Username
- EJ
- Joined
- Visits
- 2,598
- Last Active
- Roles
- Member, Administrator, Moderator
Comments
-
Dear ladonnalr, We get this question more often. A screen reader cannot be used with JASP effectively at the moment. Key-navigation is present but not fully implemented. So it would be hard to navigate even if the screen reader works. We are very mu…
-
The default setting for the Bayesian correlation is a prior width of 1. This is based on a stretched beta distribution that is symmetric around 0.5, so beta(a,a). The prior width is then defined as 1/a. It is clear that "a" should be highe…
-
Hmm I think you might want to do this many times, and that would be easiest to achieve in R. In JASP, if you just want to do this once, I guess you can create a new column with random 0 and 1's, then use that to filter either one subset or the other…
-
I do see it mentioned in https://en.wikipedia.org/wiki/Effect_size#Cohen's_d You take the (pooled) SD and divide by sqrt(n) (or a pooled version in case of the unpaired, unequal N case) E.J.
-
Well I believe there is some discussion on using the F-test for equality of variance, because it is rather sensitive to the assumption of normality. Anyway, we do have tests for equality of two variances as well. Best to check out the program and is…
-
How you calculate SE depends on your effect size measure (Cohen's d, log odds ratio, etc). For any particular measure of interest, I believe the Wiki entry generally shows how to compute the SE. E.J.
-
For an intuitive interpretation see also the text above Eq 8 in this paper: https://www.tandfonline.com/doi/full/10.1080/02664763.2019.1709053 E.J.
-
Hi Maria, Your BF10uncorrected = 0.173, meaning that the data are 1/0.173 = 5.78 times more likely under H0 than under H1. In other words, BF01uncorrected = 5.78, meaning you have evidence in favor of H0. The multiplicity correction increases that e…
-
Hello may01dz, Yes, as used by ANOVAs for instance. Cheers, E.J.
-
exactly E.J.
-
Hi Manuel, Hmm yes. This should not be too difficult I think, but it has not been done to the best of my knowledge. The thing is that the simple main effects use the information of some of the other cells in the design (this is the benefit over t-te…
-
I'll ask, but the help file does mention the emmeans package, so that would support the conjecture from MSB. E.J.
-
Hi Giovanni, I assume it is just the standard method, as mentioned for instance at https://en.wikipedia.org/wiki/Student%27s_t-test Also note this post that point to a relevant document: https://jasp-stats.org/2021/02/03/the-jasp-verification-projec…
-
Hi Mila, Hmm. Well if it can be coded in lavaan then it will work. I'll ask our expert. Cheers, E.J.
-
The test is similar to ANOVA in the sense that it compares the H0 of "the groups are equal" to the H1 of "the groups are different". If only one group is different (but clearly so) then H0 will fair poorly compared to H1. Yes, va…
-
Hi Mirna, I took a look at your JASP file and it seems fine. I am not sure what that message about the proportion test means, but I will look into it. For more examples and background information see https://link.springer.com/article/10.3758/s13428-…
-
Hi Mirna, Sorry for the tardy response. I will take a look at your JASP file soon. Well the prior concentration determines how close the prior distribution is with respect to the point of equal proportions. For instance, For instance, if we have a 2…
-
Yes we are revamping the functionality so we hope to have this sorted out in the next version. Cheers, E.J.
-
Yes, good question. The next version of JASP will allow factors to be added as factors. Previously we did allow factors to be added as predictors, but they were not analyzed as factors. Cheers, E.J.
-
Hello ARF, Well, this is somewhat of an usual situation and I'm not sure! Low N is never helpful, but you seem to have many observations per subject...you might want to plot the effects of interest per subject perhaps Cheers, E.J.
-
Hi Maya, Could you be a bit more precise? R2 is the general measure for proportion of variance explained -- what exactly is unexpected? Cheers, E.J.
-
Hi Kirstenivany, We have provided RollApp with the most recent code. They have not been responsive but they might push a new version at any moment. When they do we will advertise it on your website and on twitter. We are currently looking in how to …
-
Hi Aemar, Sorry to hear this, such experiences are always frustrating. Please post the issue on our GitHub page, where the programming team can assist you effectively. (This forum is meant for statistical questions.) For details on how to post the i…
-
Hallo Tim, Ik raad deze aan: https://psyarxiv.com/pqju6/ Als je wilt kunnen we ook een korte Q&A sessie doen -- dan is het handig om vooraf even de data te sturen, dan kan ik al even kijken (vertrouwelijk, natuurlijk; je kunt me de jasp file ema…
-
Thanks for the graphs and explanations! I hope we will have what you're asking for soon, but we welcome future suggestions for improvement so let us know your thoughts (as I said, it will take a while before we have added this functionality but we'r…
-
I've asked, hope to learn from the team members soon Cheers, E.J.
-
Hi Joedoc, So you already have the limits as computed from some other stats program, and then you wish to plot them? I don't think that's possible right now (you could issue a feature request on our GitHub page, for detail see https://jasp-stats.org…
-
I'll ask E.J.
-
I'll ask what's up with the RM MANOVA...
-
Right. But as moderation is an interaction, it seems that the problem reduces to specifying an interaction in a SEM model? Cheers, E.J.