tag:blogger.com,1999:blog-987850932434001559.post1740830323284249649..comments2024-03-18T07:12:42.122+01:00Comments on The 20% Statistician: Equivalence testing in jamoviDaniel Lakenshttp://www.blogger.com/profile/18143834258497875354noreply@blogger.comBlogger15125tag:blogger.com,1999:blog-987850932434001559.post-30256487129935513132020-05-11T17:28:35.279+02:002020-05-11T17:28:35.279+02:00Hello Daniel,
This is a very nice blog post (as al...Hello Daniel,<br />This is a very nice blog post (as always). I have read the article, I am using Jamovi and Toster module, and I have played with the provided Excel sheet. Though I do not understand one thing. I would like to perform an equivalence test on two independent samples, where I do not know the ES to test for, but I want to use raw scores instead. Both the Jamovi module and the Excel sheet allow doing so. Let‘s say I want to know if the two samples differ (or are equal) on a 7-point scale where +/- 0.5 is the threshold I am interested in. I can specify the raw score as -0.5 and 0.5, but where can I specify the lenght of my scale? I suppose 0.5 point on a 5-point scale is different to 0.5 on 7- or 9- or 11-point scales. Or am I missing something?<br /><br />I hope you can help me...<br /><br />Víthttps://www.blogger.com/profile/11229704654709925638noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-56222232585569950642017-07-17T15:29:33.093+02:002017-07-17T15:29:33.093+02:00I have never use Jamovi as a statistical tool but ...I have never use Jamovi as a statistical tool but after reading this article on Equivalence testing in jamovi I have learned a lot and I will be downloading the program so that I can learn how to use it especially during my free time when I have finish offering <a href="https://www.literaturereviewhelp.com/9-custom-writing/739-experts-lit-review-help" rel="nofollow">Critical Literature Review Writing Help</a> to college and university students who are writing their final year projects. Anonymoushttps://www.blogger.com/profile/03762693089912796201noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-91210393735985232832017-05-25T17:21:52.616+02:002017-05-25T17:21:52.616+02:00Thanks for this article!
I have a question about ...Thanks for this article!<br /><br />I have a question about this package. This package provides a way to conduct a equivalence test between two groups using a t-test. I was wondering, since my data has a non-parametric distribution, is it also possible to conduct a two-one-sided test using a Mann-Whitney U test?<br /><br />I hope you can help me.<br /><br />Kind regards, Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-32301716913171559602017-04-12T14:52:20.635+02:002017-04-12T14:52:20.635+02:00Hi, you can cite the paper as: Lakens, D. (in pres...Hi, you can cite the paper as: Lakens, D. (in press). Equivalence tests: A practical primer for t-tests, correlations, and meta-analyses. Social Psychological and Personality Science. DOI: 10.1177/1948550617697177 - thanks!Daniel Lakenshttps://www.blogger.com/profile/18143834258497875354noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-43154803752104744092017-04-12T14:21:58.315+02:002017-04-12T14:21:58.315+02:00How do I cite this?How do I cite this?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-40592661695064364812017-04-01T00:35:03.523+02:002017-04-01T00:35:03.523+02:00However, since my t-tests are non-significant (e.g...However, since my t-tests are non-significant (e.g. p = .310) does applying the correction matter - because it is conservative when accepting the alternate hypothesis. Or does the correction effect my equivalence bounds? That would be a problem for me when attempting to claim equivalence.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-44360291196001791702017-04-01T00:04:39.352+02:002017-04-01T00:04:39.352+02:00Hi,yes, a Holm-Bonferroni correction makes sense, ...Hi,yes, a Holm-Bonferroni correction makes sense, unless this are 4 independent tests that test 4 independent theories, see http://daniellakens.blogspot.nl/2016/02/why-you-dont-need-to-adjust-you-alpha.htmlDaniel Lakenshttps://www.blogger.com/profile/18143834258497875354noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-21568062147067017632017-03-31T23:47:41.903+02:002017-03-31T23:47:41.903+02:00Hey Daniel,
Conducted a 2x4 Mixed ANOVA (2 condi...Hey Daniel, <br /><br />Conducted a 2x4 Mixed ANOVA (2 condition's & 4 time points). Non-significant interaction so the conditions do not have a significant effect on the DV within the time points, however, I am looking to determine if the effects across conditions at each respective time point are equivalent and if all 4 are I am attempting to argue equivalence of the conditions on the DV.<br /><br />So far I have conducted 4 t-tests, 1 for each time point comparing the conditions and found that each are statistically equivalent. I fear that I can't report them independently and conclude statistical equivalence. Do I need to apply a bonferroni correction? Is what I have done acceptable?<br /><br />Thank you.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-67433135415040348322017-03-31T14:34:13.399+02:002017-03-31T14:34:13.399+02:00Thank you Daniel!
From,
Moderately stressed thes...Thank you Daniel! <br /><br />From,<br />Moderately stressed thesis student. <3Starbuckhttps://www.blogger.com/profile/12519323328311345843noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-5962335509814588942017-03-31T09:19:58.073+02:002017-03-31T09:19:58.073+02:00Hi, I explain how you can go about doing this in m...Hi, I explain how you can go about doing this in my paper: https://osf.io/preprints/psyarxiv/97gpc/ Daniel Lakenshttps://www.blogger.com/profile/18143834258497875354noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-76583954385951236652017-03-30T23:08:19.288+02:002017-03-30T23:08:19.288+02:00Hello Daniel. I'm brand new to equivalence tes...Hello Daniel. I'm brand new to equivalence testing and I have been doing my best to understand the theory to which I think I have. I'm trying to establish whether or not some independent samples are equivalent and I have 160 participants in each group; how will I determine which effect size to set my equivalence bounds?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-12448577915013602692017-03-30T21:13:07.317+02:002017-03-30T21:13:07.317+02:00Thanks you Daniël. What we were missing was:
- edi...Thanks you Daniël. What we were missing was:<br />- edit data (solved in JASP as I understand; jamovi does it too)<br />- confidence intervals and credible regions not only expressed in Cohen's d, but also in absolute terms<br />- frequentist tools: enter expected values in the Chi-square test<br />- bayesian tools: be able to center the prior on a non-zero value. <br /><br />I better install Jamovi,test it and compare it too JASP. And maybe contact the devs regarding missing stuff. <br /><br />Thanks for the reply! Pieter Hogendoornhttps://www.blogger.com/profile/10715137862929095267noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-76841545441000283082017-03-30T20:30:34.180+02:002017-03-30T20:30:34.180+02:00Hi, I don't know what was missing - I'd di...Hi, I don't know what was missing - I'd directly contact the developers of both packages and ask them if they have, or will have, what you need.Daniel Lakenshttps://www.blogger.com/profile/18143834258497875354noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-25847972253126498982017-03-30T20:16:13.447+02:002017-03-30T20:16:13.447+02:00Hello Daniël, since you know both JASP and Jamovi,...Hello Daniël, since you know both JASP and Jamovi, which one would you recommend for introductory level stats courses? I'm looking for<br />- a menu driven program (so no R or Python)<br />- that is beginner friendly & easy to use<br />- and offers (some) Bayesian analyses next to the classical ones. <br /><br />I had set my mind on JASP and have even done two test courses with it. Students preferred it over SPSS, missed some features however. And now Jamovi comes along, thank you all very much :-( just kidding ;-) ;-) <br /><br />Have you used Jamovi with students? Could you compare Jamovi and JASP? Thanks. Pieter Hogendoornhttps://www.blogger.com/profile/10715137862929095267noreply@blogger.comtag:blogger.com,1999:blog-987850932434001559.post-10676715493845351482017-03-14T17:49:39.857+01:002017-03-14T17:49:39.857+01:00Nice package (ahem). Thanks for providing that. I ...Nice package (ahem). Thanks for providing that. I did find one small issue you might want to consider changing. When I used the sample Tooth Growth data set that comes with jamovi, the summary Equivalence Bounds table gave a raw difference that was negative, but the optional plot shows a positive difference. That also made the TOST results confusing, because it showed an Upper test that was significant while the Lower wasn't - the opposite of what the graph suggested. I did figure it out once I looked at the second table, but a consistent direction of the difference would make things easier on the user. Very helpful, though, in running those tests!Alistair Cullumhttps://www.blogger.com/profile/16193690419324782781noreply@blogger.com