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Multifactor IRT model

Mplus Discussion > Categorical Data Modeling >

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Valeria Moran posted on Friday, February 16, 2018 - 12:40 pm

I would like to know if the syntax is correct to fit a multifactor IRT model and how to obtain theta parameters for each person with their errors.
(Syntax is in the next message)

Valeria Moran posted on Friday, February 16, 2018 - 12:44 pm

Model:
DO BY D11-D68;
DO By D11-D68*;
[D11$1-D68$1*];
[D11$2-D68$2*];
[D11$3-D68$3*];
[D11$4-D68$4*];
DO@1;
[DO@0];
Do1 BY D11-D16;
Do1@1;
[Do1@0];
Do2 BY D21-D25;
Do2@1;
[Do2@0];
Do3 BY D31-D34;
Do3@1;
[Do3@0];
Do4 BY D41-D45;
Do4@1;
[Do4@0];
Do5 BY D51-D54;
Do5@1;
[Do5@0];
Do6 BY D61-D68;
Do6@1;
[Do6@0];

Valeria Moran posted on Friday, February 16, 2018 - 12:44 pm

DO with Do1@0 Do2@0 Do3@0 Do4@0 Do5@0 Do6@0;
Do1 with Do2@0 Do3@0 Do4@0 Do5@0 Do6@0;
Do2 with Do3@0 Do4@0 Do5@0 Do6@0;
Do3 with Do4@0 Do5@0 Do6@0;
Do4 with Do5@0 Do6@0;
Do5 with Do6@0;
OUTPUT: STDYX Residual;

Bengt O. Muthen posted on Friday, February 16, 2018 - 1:32 pm

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