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Meaning of WITH on %BETWEEN% level? |
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Dear all, I have a two-level growth model for a continuous outcome (three level-analysis), similar to the one in example 9.12. I want to explain between-cluster variance in the time slope with two cluster-level covariates w1 and w2 that are correlated. I tried to model this correlation by specifying w1 WITH w2 in the %BETWEEN% section of the model. However, the corresponding path is negative and significant, whereas a separate simple bivariate correlation between w1 and w2 (with one measure per cluster) is strongly positive and highly significant. Is it possible that using WITH In the %BETWEEN% part of the model produces not a regular bivariate correlation between w1 and w2 but something else? This is the model: MODEL: %WITHIN% iw sw | y1@0 y2@1 y3@2 y4@3; y1-y4 (1); iw sw ON x; %BETWEEN% ib sb | y1@0 y2@1 y3@2 y4@3; y1-y4@0; sb ON w1 w2; w1 WITH w2; Thank you for your help, Bertolt |
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Please send an output that includes the SAMPSTAT option along with your license number to support@statmodel.com. |
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Linda, thanks for your quick reply. Using the SAMPSTAT option showed me that apparently, something had gone wrong when I exported the data set from R to Mplus, because in the sample statistics output the two variables also had a negative bivariate correlation on the between level. I fixed the error in R and now everything works as expected. Apologies for the mistake on my side. Regards, Bertolt |
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