Stratafication versus clustering PreviousNext
Mplus Discussion > Multilevel Data/Complex Sample >
 jennifer hamilton posted on Saturday, November 29, 2008 - 6:44 pm
I have a stratafied sample, with only two strata. The sample is stratafied because it is thought that the stratafication variable may be correlated with the outcome. It's also probably safe to assume that there is some degree of homogeneity within strata.

Because of this homogeneity within strata, is it acceptable to use the CLUSTER option in the VARIABLE command? That is my code would read, CLUSTER IS STRATAFICATION VARIABLE.

I know that the strata isn't technically a cluster, but it seems to me that they can share the important characteristic of correlated errors. Am I nuts?

Thanks muchly!
 Linda K. Muthen posted on Sunday, November 30, 2008 - 4:58 pm
You could use the STRATIFICATION option or multiple group analysis given that you have only two strata.
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