All Questions
5
questions
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 ...
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 ...
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 ...
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) = ...
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 ...