EJ
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- EJ
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Comments
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Hello Bence, Good question. Apparently the Friedman test requires the ANOVA to be balanced?! Have you checked out any alternatives yourself? Cheers, E.J.
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Thanks for pointing this out, I'll forward this to our network expert. Cheers, E.J.
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Both methods estimate the same quantity -- the BF, which depends on the parameter prior but does not depend on the model prior. In your equation for the MCMC method, the change from prior to posterior odds equals the BF, which is the ratio of margin…
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If you activate the SEM module you will find that under "Data" you can choose "variance-covariance matrix". I did not see such an option for factor analysis or network analysis -- would be a good feature request perhaps? Cheers, …
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I am not 100% certain, but I think BayesFactor integrates out the random effects, such that the key measure of interest requires only a one-dimensional integral. When you add particular effects to the ANOVA model (which cannot be integrated out) the…
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Dear Wang, Exchanging the role of the posterior with the marginal likelihood yields the Chib estimator, if I recall correctly (there is also a Chib & Jeliazkov paper). In transdimensional MCMC, the model prior matters for the convergence, but ul…
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Dear Luis, The correction goes by means of the prior model probability. See for instance this summary: https://psyarxiv.com/s56mk Cheers, E.J.
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Hi Luis, This sounds reasonable. I would replace "These results strongly suggest that the observed data is 12.8 times more likely under the alternative model." to "These results show that the observed data is 12.8 times more likely un…
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This is a recurring topic on this forum :-) I noticed a previous thread that may be relevant: https://forum.cogsci.nl/discussion/3013/what-denominator-does-the-cohens-d-use-on-jasp Does this address the issue? If not I'll ask Johnny to look at this.…
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Dear Faya, I'll forward this to our expert. Sorry for the tardy response. Cheers, E.J.
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Yes. But I do think it is important to check that these nuisance factors do not differ between the groups. Suppose that cortical thickness is lower for older people, and patients are older than the controls. Instead of removing noise, you may then b…
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It is always tricky to pick the right design, because in the current setup there will be practice effects and effects of time (and possibly selection effects as drop-out may be related to performance?), so the comparison is potentially confounded. B…
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Great that you found it. I often forget about this one myself, and we have been thinking of creating a separate, visible button for this somewhere. But we can't seem to reach agreement on the exact implementation, and whether it would be worthwhile…
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Dear Wang, Maybe it would be clearer if we'd use the term "Parameter Prior" instead of "Prior". The parameter prior partly defines the prediction that a model makes, and through these predictions it affects the evidence and there…
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Dear CCtt, The first entry compares the model against itself, so it is always 1.00. Looking at the table quickly, it seems you have some evidence for the null -- highly ambiguous in the case of Test Delay, but more impressive for the other factors. …
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I'll forward this to the programming team. Note that we have a GitHub page that is ideal for reporting such concerns, as you will be in touch with the team directly! For details see https://jasp-stats.org/2018/03/29/request-feature-report-bug-jasp/ …
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Dear emurray4, You are correct, the interface for Descriptives has recently been upgraded in order to reduce clutter and keep things simple. The new interface offers more options than before, so there is no reason to revert to an earlier version. I …
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Hi Leigh, I'm forwarding this to our expert. Cheers, E.J.
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Hi Daniela, I think this may take another 10 days or so. Cheers, E.J.
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This has been suggested before (you can check our GitHub page, which can be used both for feature requests and bug reports; for details see https://jasp-stats.org/2018/03/29/request-feature-report-bug-jasp/). I realize this is handy, but at the same…
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Not currently. We welcome translators to add Hebrew! See https://jasp-stats.org/translation-guidelines/ Cheers, E.J.
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Right now this is not possible. Of course the graph allows the user to try out some values near the threshold, but it is not autimatized. This would be a good feature request for our GitHub page. E.J.
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This should be easy to figure out with generated data (for instance using the Distribution module). But perhaps we should clarify this. I'll ask the team.
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Hi Daniela, I'm forwarding your email, but the person in charge of this analysis has just gone on vacation so responding might be a little more slow. E.J.
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Dear Laura, I am referring to resampling itself. I do realize the resampling is handy in the present context, because otherwise you need some sort of complicated time series model (which will almost certainly be misspecified). This is definitely int…
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Dear AstralWolf, This is because the ANOVA scenario is more complex. But maybe something is possible here. A good feature question for our GitHub page! Cheers, E.J.
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Hi Laura The jackknife is a resampling technique, right? When you're doing a Bayesian analysis that is not needed. But I guess I should look up the Kiesel paper... Cheers, E.J.
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That would be very welcome -- I'll check E.J.
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I'll ask the team
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Hello buzziol, We're working hard to make it easier to obtain the R code underlying the computations. This is work in progress, but it is our main goal for the near future. Cheers, E.J.