What is Dunn's multiple comparison test?
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6.1 years ago

Guten morgen.(means 'Good morning' in Deutsch)

Recently I read a paper entitled "Circulating Tumor DNA Mutation Profiling by Targeted Next Generation Sequencing Provides Guidance for Personalized Treatments in Multiple Cancer Types", the Dunn's multiple comparisons test appeared in Figure 3 of that paper. When I search on Google, it is one of statistics, but I do not know statistics.

I know p <0.05 that it means "to reject the null hypothesis when p <0.05", but for what is it a test, what is the multiple comparison and the Dunn's test I do not know.

1. What is Dunn's test and what is test for blackening?
2. What is the multiple comparison?
3. Is Dunn's multiple comparison test proceeding with multiple comparisons using Dunn's test?

PS: Are Dunn's test and dunnett test the different tests?

statistics • 3.9k views
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No. p<0.05 doesn't mean "to reject the null hypothesis when p <0.05". If you don't know anything about statistics I suggest you start taking a course or at least pick a good introductory book otherwise any explanation we could write will not make sense to you and here is not the place to teach you basics in statistics.

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then, what p<0.05 mean? 0.05 is not significance level?

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In this context, p<0.05 means that under the assumptions of the test, when the null hypothesis is true, the probability of observing the data is less then 0.05.

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