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3 votes
1 answer
117 views

Nonparametric way to perform ANOVA of linear mixed model for small sample and power calculation

I have a small data where there are 3 groups (A,B,C) and 5 participants from each group. All of those participants are measured 6 times on each of 7 different exams, so each participant get 6*7=42 ...
ksing's user avatar
  • 77
1 vote
2 answers
71 views

which non parametric test to use? friedman or Kruskal?

I am conducting a study on textrual complexity. We fed people food (3 types) over 3 sessions and asked questions about hunger levels. 20 participants were tested during 60 trials in total. Of the 14 ...
luke pringle's user avatar
0 votes
1 answer
347 views

Linear mixed effect model, repeated measures or non-parametric test?

I have this study design: two groups (A & B) measured in 3-time points (pre, follow-up & post). I thought that a linear mixed model effect was the preferred option because I do have missing ...
elemarles's user avatar
4 votes
1 answer
2k views

Construct piece-wise linear mixed effect models

I'm looking at the BMACS dataset(data(BMACS)), and is trying to construct a local constant fit without covariates using base functions B1(t) = 1 for t < 2, B2(t) = 1 for 2 <=t <4 and B3(t) = ...
lydias's user avatar
  • 163
3 votes
0 answers
9k views

Is there any model that includes random effects with non-parametric data distribution?

I have a non-parametric (by which I mean non-normal) data distribution. I tried several transformations, but none were helpful. Now, I want to find a model where I can include random effects with the ...
Diana's user avatar
  • 39