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Indirect effects w/ cat. predictors a... |
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Igor Holas posted on Thursday, February 18, 2010 - 4:04 pm
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I have a path analysis model with the following features: - single nominal (3 category) predictor (run as rotated contrast) (U1) - several dichotomous covariates, and some continuous ones - continuous mediators (Y1 and Y2) and outcomes (Y3 and Y4) - I am using MLR because my residuals failed the assumption tests - I am using CLUSTER option to correct my stanrard errors, because I have children nested in schools. my model in short is: U1 -> Y1, Y2 -> Y3, Y4 I ran the full model as follows MODEL: Y1 Y2 on U1#1 U1#2; Y3 Y4 on U1#1 U1#2 Y1 Y2; Did I estimate all paths? I usually run MODEL INDIRECT: but I receive an error ( MODEL INDIRECT is not available for analysis with ALGORITHM=INTEGRATION.) I read through the manual and the discussion. And saw mentions of Thresholds and MODEL CONSTRAIN. However, I did not find enough information on either to understand how to use them. Thank you for your help! I |
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I think you are putting u on the NOMINAL list. This is for dependent variables. You should instead create a set of dummy variables for u and use those as covariates. |
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Igor Holas posted on Saturday, February 20, 2010 - 1:38 pm
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Dr. Muthen, that is what I have - I just failed to properly describe it. All my categorical predictors and covariates are indicator coded. Thank you I |
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You would need to send the full output and your license to support@statmodel.com so I can see what you are doing. |
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