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Hello! I want to perform CFA to validate a questionary with 23 questions. In our study we have over 20000 patients within 700 physicians, who answered the questionary about his/her family physician. I'd like to adjust CFA for physicians clusters, but I'm not sure, how to do it. In MPlus Users Guide I found only examples where covariates are included in the model. Her is my input: TITLE: CFA DATA: FILE IS patient.txt; VARIABLE: NAMES ARE u1-u23 clus; CATEGORICAL ARE u1-u23; CLUSTER IS clus; ANALYSIS: TYPE = TWOLEVEL MODEL: f1 by u1-u6; f2 by u7-u11; f3 by u12-u15; f4 by u16-u17; f5 by u18-u23; *** ERROR in Model command The labels %BETWEEN% or %WITHIN% must be specified. I'm not sure, what I have to write her. Can you help me? Thanks a lot! |
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You must specify the labels %BETWEEN% and %WITHIN% as part of your MODEL command. See the examples in Chapter 9 for an illustration of this. |
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