Multiple group CFA with categorical i... PreviousNext
Mplus Discussion > Categorical Data Modeling >
 gibbon lab posted on Friday, April 29, 2011 - 6:31 pm
Dr. Muthen,

I am running a two group CFA with two factors where one factor has two categorical indicators and the other one has three categorical indicators. The 5 indicators are all ordinal categorical.

My code is:

USEVARIABLES ARE x1 x2 x3 x4 x5 sex;
categorical are x1 x2 x3 x4 x5;
grouping is sex(1=m 2=f);
ANALYSIS: TYPE=meanstructure;
y1 by x1 x2 x3;
y2 by x4 x5;

I got this message "THE STANDARD ERRORS OF THE MODEL PARAMETER ESTIMATES COULD NOT BE COMPUTED. THE MODEL MAY NOT BE IDENTIFIED. CHECK YOUR MODEL. PROBLEM INVOLVING PARAMETER 28." I checked the tech 1 output, parameter 28 is the alpha for y2. What should I do? Thanks.
 Linda K. Muthen posted on Friday, April 29, 2011 - 6:42 pm
Please send the output and your license number to
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