Tests of normalities

Everything related to development of the jamovi platform

by alquirel » Tue Oct 23, 2018 7:00 am


First of all, thank you for this beautiful and successful application. I study on medical sciences and I am very familiar with SPSS, like almost all other medicine specialists. And as written in statistics textbooks, while testing the normality of data if sample size is more than 50, we shall use Kolmogorov-Smirnov test rather than Shapiro-Wilk test.

Do you consider this? Maybe there is an option in Jamovi for K-S and I couldn’t find it, I don’t know. If so, sorry.

The reason of this topic is in Development Forum, I am very good at Javascript and NodeJS, but I am not good at R. I think I can achieve this by a module with some effort but I don’t think it would be useful in a separate menu rather than in T-Test analyse options.
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by jonathon » Tue Oct 23, 2018 7:48 am

hmm, yeah. the issue is that we want to provide a lot of features, but not so many that we become overwhelming for new users.

K-S is a bit in the middle ...

i'll think about it.

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by smithdev » Sat Feb 16, 2019 10:25 am


First of all, my sincere congratulations for this excelent piece of software, which my save us from the horror of SPSS!
I second the request for the Kolmogorov-Smirnov test.
Will you also consider the inclusion of the Brown-Forsythe (B-F) Test (for testing the assumption of equal variances in ANOVA)?

Thank you very much for all you work!
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by glen » Thu May 30, 2019 2:24 pm

I'd use K-S as well. I am switching from SPSS to jamovi for teaching this year and have always taught the students to use K-S for larger sample sizes. Would be so handy to have it beside the SW box.
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