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EJ

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EJ
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  • Yes, they operate under different assumptions, so will give different answers. In general, Bain is particularly well suited for testing order-restrictions. E.J.
  • Dear rhlamber, Just to get this straight: What exactly do you mean with "BF of comparisons for groups interaction"? You mean "split" by, say, not only gender but also by favorite color, so that you get a matrix of plots? Regardle…
  • I'll pass this comment along
  • Ah, this one then: http://www.ejwagenmakers.com/2017/RouderEtAl2017ANOVAPM.pdf
  • For raw BFs, the scale is asymmetrical: evidence for H0 (say) goes from 0 to 1, whereas evidence for H1 goes from 1 to infinity. So a BF of 1/200 is of the same strength as a BF of 200. If you take the log, evidence for H0 is -x, and the same streng…
  • Dear tracys, We can help you out but our programming team will probably need some more information. In order to help you effectively please post the issue on our GitHub page (for details see https://jasp-stats.org/2018/03/29/request-feature-report-b…
  • Dear Marius, We can help you out but our programming team will probably need some more information. In order to help you effectively please post the issue on our GitHub page (for details see https://jasp-stats.org/2018/03/29/request-feature-report-b…
  • Dear Flaihai, Thanks for bringing this to our attention. We would love to fix this, but out programming team may need some additional information. Also, this is exactly the kind of issue that we like to see on our GitHub page -- that way, the entire…
  • I'll pass this one on to Richard...
  • Hi Major, I've passed this on to our network experts. They are currently on vacation, so the reply might take a little longer than usual. Cheers, E.J.
  • Dear Luke19, Well, that is not supposed to happen :-) We check carefully, but sometimes there's an issue that we learn about only when users such as yourself bring this to our attention. We generally recommend a post to out GitHub page so that the e…
  • Hi Jihene83500, JASP handles this internally and automatically, no need to do any calculation yourself! Cheers, E.J.
  • Hi BrittJane, Yes, it is in the works! We are waiting for some other software developments to pull the trigger on this one. When we do implement mediation, this will likely be based on the blavaan R package, so you could check that out Cheers, E.J.
  • Hi Jan, I don't think this is a difference that affects the conclusion, both BF are astronomical :-) Cheers, E.J.
  • Hi Cesar, Sorry for the tardy response, I was stuck in a French swimming pool for a while. I will pass your question on to our SEM expert. Cheers, E.J.
  • Hi eniseg2, Thanks for the positive comments about the paper! Bayesian assumptions are generally the same as the frequentist ones. Yes, the DV for the stereogram example is log-transformed in order to remove the right-skew. Reviewers asked us to el…
  • Yes, as eniseg2 says! E.J.
  • Also, the %error will give an indication of the variability; if more stable results are desired, you can up the number of samples for the numerical routine under "Advanced options" -- this should bring down the error% (at the cost of takin…
  • Soon...(this year for sure)
  • Could you post this issue on our GitHub page? This would help us a lot! (for details see https://jasp-stats.org/2018/03/29/request-feature-report-bug-jasp/). Cheers, E.J.
  • Dear Bfzldh, If you post this as an issue on our GitHub page we can address it! (for details see https://jasp-stats.org/2018/03/29/request-feature-report-bug-jasp/)). As far as we are concerned, the attractive feature of the GUI is not primarily dat…
  • Hi Jan, The effect is massive, so it is a plausible result; The ANOVA routine in JASP is taken from the BayesFactor package. What this package does is explained in a paper by Rouder et al. 2012 (Journal of Mathematical Psychology) and this one: http…
  • Hi Matue, Yes it is. We are in the process of developing Bayesian procedures to make these assessments (or lessen the importance of violating these assumptions, for instance through analyses based on ranks) E.J.
  • Hi Izymil, Well, there are so many papers that take a t-test to compare the mean of two groups concerning dependent measure X. In the case X is the variance, but that is fine, it could have been anything else. Cheers. E.J.
  • It is set so that it gives the same result as the default t-test in case of a one-way ANOVA with two levels. The reason that the 0.707 is not the same as the 0.5 is because the ANOVA is parameterized slightly differently. Yes, this is very confusing…
  • Dear Thalia, First, if you set the *model prior* to Uniform this assigns equal prior plausibility to each model (i.e., each unique combination of predictors). This is standard practice, but the problem is that, implicitly, this setting leads to a pr…
  • We haven't paid much attention to power (yet). As far as effect sizes are concerned, yes, we'll discuss this. Note that such feature requests can best be posted on our GitHub page (for details see https://jasp-stats.org/2018/03/29/request-feature-re…
  • This seems a little fishy. I am always wary of these kinds of shortcuts, or at the very least I'd like to see a comparison to a more principled way of doing things. We're going to implement contrasts at some point in the future though. E.J.
  • Yes, we are well aware of the issue. Currently we use the R defaults, but the user needs more control over these. The reason why we haven't acted yet is that we are aiming for a more comprehensive solution. However, because progress is slower than e…
  • We are very close to making it straightforward to add such functionality in the future. For now, you could post this issue on our GitHub page. This way your suggestion is not forgotten, is brought to the attention of others (who may support it) and …