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. 2018 Apr 4;9(2):238–247. doi: 10.1055/s-0038-1641595

Table 4. The items tested for overall model fit.

Item Ideal results Results Fit status
Chi-square/degrees of freedom (normed chi-square) ≤3 2.5
NFI (normed fit index) ≥0.9 0.91
NNFI (nonnormed fit index) ≥0.9 0.93
CFI (comparative fit index) ≥0.9 0.94
GFI (goodness-of-fit index) ≥0.8 0.81
IFI (Incremental fit index) ≥0.9 0.94
RMSEA (root mean square error of approximation) < 0.1 0.08