Missing data & multiple group analysi... PreviousNext
Mplus Discussion > Missing Data Modeling >
 Bit na, LEE posted on Tuesday, January 14, 2014 - 3:15 am
Dear Linda,

I am trying to run a multiple group analysis and test for differences between tests (long test & short test).
I am working on factorial Invariance between a full version test (A test, 10item) and a short version test (B test , 7item).
B test has been developed as a short version of A test. Therefore, since B test is a short version, there are some missing data in B test data set.
So DATA set form
version item1~7 / item8~10
1(long) response response
2(short) response missing

variable:names=version item1-item10;
missing= .;
GROUPING = version(1 = long 2 = short);
MODEL: F1 BY item1-item10;

F1 By item1-item7;

However, M-plus could not read the missing data when conducting factorial invariance analysis, which the syntax said as follows:
One or more variables in the data set have no non-missing values. Check your data and format statement.

Would you please give me any advice to solve this problem? also I wonder how m-plus run a multiple group analysis with two group that have different number of observed variables.

Regards, Bitna
 Linda K. Muthen posted on Tuesday, January 14, 2014 - 12:28 pm
Please send the full output and your license number to support@statmodel.com.
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