RM ANOVA or Mixed model or Kruskal-Wallis for highly unbalanced repeated measures data which is always non-parametric and unequal variance in groups?

In my data for acoustic features of songbirds, I have unequal sample size across groups. I had been using Sigmaplot 14. In 6 birds, I have given aCSF (control), 100 and 200ng/ml of drug. Of these...

16 August 2020 1,385 3 View