model fit question

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Anna

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Jan 11, 2019, 8:12:20 AM1/11/19
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Dear lavaan users, 
I received the following model fit indices. Could you help by telling me: is it a good model or am I getting things wrong? If the latter, what is wrong with it?

lavaan 0.6-3 ended normally after 15 iterations

  Optimization method                           NLMINB
  Number of free parameters                          9

  Number of observations                           556

  Estimator                                         ML
  Model Fit Test Statistic                       0.000
  Degrees of freedom                                 1
  P-value (Chi-square)                           0.999

Model test baseline model:

  Minimum Function Test Statistic              104.086
  Degrees of freedom                                 6
  P-value                                        0.000

User model versus baseline model:

  Comparative Fit Index (CFI)                    1.000
  Tucker-Lewis Index (TLI)                       1.061

Loglikelihood and Information Criteria:

  Loglikelihood user model (H0)              -3090.367
  Loglikelihood unrestricted model (H1)      -3090.367

  Number of free parameters                          9
  Akaike (AIC)                                6198.734
  Bayesian (BIC)                              6237.621
  Sample-size adjusted Bayesian (BIC)         6209.051

Root Mean Square Error of Approximation:

  RMSEA                                          0.000
  90 Percent Confidence Interval          0.000  0.000
  P-value RMSEA <= 0.05                          0.999

Standardized Root Mean Square Residual:

  SRMR                                           0.000

Parameter Estimates:

  Standard Errors                            Bootstrap
  Number of requested bootstrap draws             5000
  Number of successful bootstrap draws            5000

Thank you in advance.
Bests,
Anna

Terrence Jorgensen

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Jan 15, 2019, 7:35:32 AM1/15/19
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I received the following model fit indices. Could you help by telling me: is it a good model or am I getting things wrong? If the latter, what is wrong with it?

You can ask general SEM questions on SEMNET:


But I would recommend you start by reading an SEM textbook to learn fundamentals like this.

Terrence D. Jorgensen
Assistant Professor, Methods and Statistics
Research Institute for Child Development and Education, the University of Amsterdam

ania...@gmail.com

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Jan 15, 2019, 7:39:01 AM1/15/19
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Thank you. 
Perhaps I should make the question more precise: so this is an output from a (serial) double-mediation model in which I have constrained one path so as to make the model identified. However, I am puzzled by the model fit here as it is not really much different from a saturated. My question is: is this model identified or saturated?

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