In your simulation book, your last example in the linear mixed model section is a multilevel model problem. Could you present an example with code for a repeated measures example? Using your example with weight loss, I have recreated a simulation where the errors are correct. However, when I introduce random components, it messes up the simulation. Thus, I tried looking at the last example concerning families and heights and used the code with a repeated measures example of mine. However, again, the random effects components did not average out to the parameters I specified. Any help is greatly appreciated as I have been struggling with this simulation for weeks now.
The example that you speak of is a mixed model with correlated errors. I don't have any other examples like that lying around. I suggest that you study a good book on mixed models. There might be an example like this in
Gelman and Hill (2007), Data Analysis using regression and multilevel/hierarchical models. Their R codes are easily translated into IML.
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