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    Mauchly’s test of sphericity with Friedmans??

    Sorry, I forgot to also add that I do have three repeated measures conditions in my Friedman test, which is why I am unsure on whether I need the test of sphericity.
  2. S

    Mauchly’s test of sphericity with Friedmans??

    Hi, In my lab report im using Friedman's test of differences for my data as it is non-parametric and not normally distributed. Do I need to include Mauchly's test of sphericity too or is that only for repeated-measures ANOVA? Thanks