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1) χ2: Chi-square.
2) χ2/df: Chi-square divided by degree of freedom.
3) GFI: Goodness of fit index.
4) AGFI: Adjusted goodness of fit index
5) IFI: Incremental fit index.
6) NFI: Normed fit index.
7) CFI: Comparative fit index.
8) RMR: Root mean residual.
9) RMSEA: Root mean squared error of approximation.
