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Mplus Discussion > Exploratory Factor Analysis >
 Gabriella Fu posted on Monday, March 20, 2017 - 10:33 pm
I was using Mplus to explore the structure of a questionnaire. The data was nonnormal (skewness roughly between 9~27 and kurtosis between 68~800) so I want to use MLM as estimator. But results showed that estimator was ML enough my command was MLM. This problem did not occur when I used MLR as estimator. I was wondering why this happened.
 Bengt O. Muthen posted on Tuesday, March 21, 2017 - 5:52 pm
You can use MLM only with Liswise = on, not when you have missing data. I assume that you have missing data and Mplus gives message that it switched from MLM to ML.

MLR can handle missing data.
 Gabriella Fu posted on Wednesday, March 22, 2017 - 5:36 am
Yes I do have missing data. Thank you so much professor Muthen.
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