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 Steven Lancaster posted on Tuesday, March 26, 2019 - 11:03 am
Hi,
I ran the model below, but there seems to be an issue that prevents MPLUS from providing fit indices. Any suggestions on how to modify to address this?

ANALYSIS:
TYPE = GENERAL;
ESTIMATOR = MLR;

Model:

[mi_other] (b0);
mi_other ON tao (b1);


mi_other ON tatotal (c1);
mi_other ON edmd (c2);
mi_other ON edmdxta (c3);

[tao] (a0);
tao ON tatotal (a1);
tao ON edmd (a2);
tao ON edmdxta (a3);


...

Chi-Square Test of Model Fit

Value 0.000*
Degrees of Freedom 0
P-Value 0.0000
Scaling Correction Factor 1.0000
for MLR


RMSEA (Root Mean Square Error Of Approximation)

Estimate 0.000
90 Percent C.I. 0.000 0.000
Probability RMSEA <= .05 0.000

CFI/TLI

CFI 1.000
TLI 1.000



SRMR (Standardized Root Mean Square Residual)

Value 0.000
 Bengt O. Muthen posted on Tuesday, March 26, 2019 - 5:16 pm
Your model has zero degrees of freedom so it cannot be tested. In other words, there are no left-out arrows. This is ok.
 Steven Lancaster posted on Thursday, March 28, 2019 - 5:59 am
Is there any guidelines for how to report a just-identified model in a published paper, or should I try and adjust the model in some way?
 Bengt O. Muthen posted on Thursday, March 28, 2019 - 5:38 pm
You may want to consult with SEMNET. I would just say that the model has df=0 so no overall test of fit is available and just report the effects and their significance. You should not adjust the model to force df>0.
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