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gibbon lab posted on Monday, December 12, 2011 - 5:14 pm
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Hi Professor Muthen, I am running a two group analysis. For one of the paths, the beta is 1.71 with t=3.03 in one group and 4.30 with t=2.91 in the other group. The chi-square difference test shows that they are significantly different. In this case (lower beta with higher t value), which group should be considered to have a stronger path? Thanks a lot. |
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Given that they are scaled the same, I think you could say that 4.30 is stronger because it is a larger value and both are significantly different from zero. |
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gibbon lab posted on Tuesday, December 13, 2011 - 10:01 am
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Hi Professor Muthen, That path has an exogenous latent variable and an endogenous latent variable. Can I assume the latent variables are scaled the same in both groups? Thanks a lot. |
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You can if measurement invariance holds. |
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gibbon lab posted on Wednesday, December 14, 2011 - 12:25 pm
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Is there a command in Mplus to hold the measurement invariance? Thanks a lot. |
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No. You would need to test for it. See the Topic 1 course handout under multiple group analysis. |
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gibbon lab posted on Friday, April 06, 2012 - 1:46 pm
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Hi Professor Muthen, What if the measurement invariance does not hold? Does that mean the comparison between the two groups is invalid? Thanks a lot. |
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If measurement invariance does not hold, structural parameters cannot be compared across groups. |
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