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Anonymous posted on Friday, August 12, 2005  1:03 pm



Dear Muthen, Hello, I study in Mplus and then I think my dataset is the similar pattern Ex 9.13. But, now I couldn't figure out the X, W variables. I got the your answer, even if I just use the outcomes, it is fine. So, I try to change the program comment. * Question(1) Like this: TITLE: this is an example of a twolevel Growth model for a categorical outcome1 (threelevel analysis) DATA: FILE IS ex9.13.dat; VARIABLE: NAMES ARE u1u4 clus; CATEGORICAL = u1u4; CLUSTER = clus; ANALYSIS: TYPE = TWOLEVEL mixture; MODEL: %WITHIN% iw sw  u1@0 u2@1 u3@2 u4@3; %BETWEEN% ib sb  u1@0 u2@1 u3@2 u4@3; OUTPUT: TECH1 TECH8;  The Mplus say to me, it can't run it. I can't hand it. why I get this message? * Question(2) I look at the Ex 9.13 dataset. X and W are contiunous variabels. If X and W are catergoical variabels, it is fine? And, I need more explain about the X, W variables. Still confuse. Thank you so much for your helping. 

bmuthen posted on Friday, August 12, 2005  2:31 pm



1. You don't have a mixture model so you should delete "mixture" from your TYPE = statement. 2. x and w can be categorical. Why don't you start your modeling without such variables. But you should really read the multilevel/growth literature and/or take a course  which is very clear on the meaning of such variables  before you do analyses of this kind. 

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