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I ran a two-level CFA model with 9 indicators, 3-factors at the child level and 2-factors at the classroom level. Should I be concerned about the unstandardized residual variances being too large particularly for 3 indicators: DELV, SI_PH and SI_GR? What results in the residual variances to be so high? Are they acceptable to report? Residual Variances TOPELPK 92.482 6.495 14.240 0.000 TOPELPA 106.942 11.317 9.450 0.000 PALSNW 2.088 0.156 13.359 0.000 PPVT 66.939 7.272 9.205 0.000 NAPOLS 29.349 2.726 10.768 0.000 NAPCOMP 1.488 0.161 9.220 0.000 DELV 277.654 31.961 8.687 0.000 SI_PH 392.070 62.806 6.243 0.000 SI_GR 228.328 33.114 6.895 0.000 Thank you |
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The size of your residual variances is dependent on the scale of your variables. If the Sampstat output shows large variances for your variables there is nothing to worry about. |
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Great thank you! One more question...when I add covariates to the model, the model does not converge (the covariates have a lot of missing data since they are supplementary surveys filled out by parents). What could be causing the problems with the model? Is it missing values (more than 50%)? |
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Please send the outputs, with and without covariates, and your license number to support@statmodel.com. |
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