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Channel: Change over time between two groups and within groups - Mann Whitney or Kruskal Wallis? - Cross Validated
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Answer by startswithH for Change over time between two groups and within...

What I decided to go with in the end was Friedman due to the nature of the question being a non parametric one-way repeated measures test.res.fried <- myd %>% groupby(group) %>%friedman_test(y...

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Answer by Joos Korstanje for Change over time between two groups and within...

I think you might be able to use Friedman's test for 3 or more repeated measures.You can check out here that shows an example.It would be even better to address the two questions in a single model....

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Change over time between two groups and within groups - Mann Whitney or...

I have two groups (Control and Disease) and for each group a variable y is measured at three time points (0H, 24H, 48H). I want to know two things:Does y change between Control and Disease at each...

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