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Different results from different vers... |
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Hello, Dr. Muthen. I have different results from two different versions (v5 and v7.11) of Mplus running an exactly same script with the same data. From version 5 with 2-class solution, maximum likelihood was replicated and two classes with proportions of .16 and .83 were estimated. From version 7.11 with 2-class solution, maximum likelihood was not replicated and, in the final solution, two classes with proportions of <.001 and .999 were estimated. Interestingly, in the 3-class solution using v7.11, maximum likelihood was still not replicated, and three classes with proportions of <.001, .16 and .83 were estimated. Means of I and S factors in the classes with proportions of .16 and .83 were almost identical with that from 2-class solution from version 5. I think such almost non-existing classes from v7 are some kind of artifact but am not sure what caused them. I also wonder what results are more trustworthy. If that almost non-existing class from v7 is an artifact, how would I check if it's an artifact, and what advice would you recommend to present the result? Thank you very much for your help. |
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You should not interpret results unless the best logL is replicated several times. To ensure the best performance, you should always use the latest Mplus version which is now 7.2. |
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