| Attachment | Size |
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 test-2L-model.pdf | 219.77 KB |
Hello all,
I want to estimate the variance components in a two-level model. The estimated variances seem correct when there is only one variable. However, the estimated variances appear incorrect when more than one variable. The observation is that the between-level variances are under-estimated, whereas the within-level variances are over-estimated.
Attached is an example with 1,000 level-2 units, each with 100 level-1 units. This ensures that sampling error does not play a critical role.
Did I do something wrong here? Thanks in advance.
Mike
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Hello all,
I just figured that I had made an error in the code.
Incorrect:
Correct:
It works okay after correcting it. I have attached the updated version for the record.
Mike