EJ
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- EJ
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Comments
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I'll ask our expert! Cheers, E.J.
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Hi Miriam, I'll ask our expert. Cheers, E.J.
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Hi Mateus, Yes, good evidence for the null model and against the "cluster" factor E.J.
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I'll ask our expert...maybe this was done in the developers version of JASP. E.J.
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I don't think this is a problem. The default priors are mostly based on general desiderata, "objective-Bayes" style. For the correlation, even if the alternative hypothesis is specified to predict correlations closer to zero (this can be d…
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Thanks. I'll ask our ANOVA expert. E.J.
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My thoughts have not changed but also/mainly because I have not given it much thought. I will revisit this when we implement this in JASP! On our to-do list... Cheers, E.J.
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Dear AnaOnar, There is not. JASP respects the principle of marginality, which means that if you have an interaction, the constituent main effects are in there as well. Cheers, E.J.
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Hi Massimo, It seem to me that you have to start by computing Sensibility and Specificity for each study separately. But you need se's for this as well. I am not sure how a classical analysis deals with this (bootstrap?). I will ask our expert. Chee…
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Hi Anna, Yes, I'm keen on that too :-) Lots of stuff happening with JASP so we have to prioritize. It will happen though. At least logistic regression is next on our list. E.J.
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Hmmm I see our expert has not responded yet...I'll prompt him :-)
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Hi apangallo, Descriptives is able to return the standard error, so that should help. Of course if you do a t-test you'll get the t-value as well... E.J.
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Sorry about the delay! The "e" is scientific notation (https://en.wikipedia.org/wiki/Scientific_notation, see E-notation) for large numbers. So 2.12e+11 means 2.12 and then move the period 11 positions to the right, so it is 212000000000. …
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Hi eniseg2, I am not sure about the discrepancy -- when the prior inclusion plot suggests a small increase in probability, the inclusion BF suggests weak evidence in favor of adding that component. There is nothing special about a BF value of 3. If …
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Hi JC, Sorry about the tardy response, this one slipped through. First of all, there is no way to compare BFs directly. Instead, you need a BF for the difference. So what you'd need to do is combine the two conditions into one analysis file, and tes…
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If JASP recognizes the variable as nominal, it suggests some entries (at least one) has a character string. This could be an undefined "not a number" indicator, or perhaps the Excel version you used denotes fractions with a comma: that is,…
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I'll forward this to Richard
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Hi roundcircle, Well, you have B01 (from R or JASP), and you can easily compute the numerator, so that then determines the denominator. However, (I have not checked this) I'd be surprised if that equation shows the two marginal likelihoods -- I susp…
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Hi MSB, "r" is the sample value. The underlying model parameter is "rho". Cheers, E.J.
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Hi AnaOnar, Nothing is wrong. This procedure uses numerical integration and therefore the results will be slightly different each time. For enhanced reproducibility, the next version will include a random seed that you can set in order to reproduce …
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Hi WWU, Ah, I see. Strange. Well we do run SEM to do the CFA but I'll pass this on to Erik-Jan (with a k) who might have bright ideas. Cheers, EJ
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Dear WWU, This warning suggests that the model is overparameterized. I would try a simpler model first, and see whether that works... Cheers, E.J.
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Hmm yes, that is quite categorical support for H0. This is usually difficult to obtain. Generation has 7 levels? The more levels there are, the easier it will be to get evidence for the null I think. Still, this is pretty extreme, especially because…
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Can you give a concrete example?
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I'll pass this on to our lavaan expert!
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Hi Sophie, When you do an independent samples t-test, the sequential BF will remain at 1 until you feed it data from the other group. Without having seen any data from the other group, there can be no evidence of an effect of the manipulation. So if…
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Hi Chribo, These tests are based on different data (DVs) so they can't easily be combined, afaik. I'd make absolutely sure that the direction of the effect has been coded correctly -- to get BF+0 = 0.0001 the effect must go clearly in the direction …
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Hello irepet, I think it would help if you showed the results for a specific example, this would make the discussion more concrete. Cheers, E.J.
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Hi Gabriel, The not-so-subtle statistical practice in experimental psychology would be to average the 8 time points for each participant and conduct the regression/correlation on the averaged numbers. A more subtle approach would be to apply some so…
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van Doorn, J., van den Bergh, D., Boehm, U., Dablander, F., Derks, K., Draws, T., Evans, N. J., Gronau, Q. F., Hinne, M., Kucharsky, S., Ly, A., Marsman, M., Matzke, D., Komarlu Narendra Gupta, A. R., Sarafoglou, A., Stefan, A., Voelkel, J. G., &…