Table 8 Fit indexes of the measurement model

Chi square

Lower values are better

583.32

Comparative Fit Index (CFI)

>0.90

0.912

Goodness-of-Fit Index (GFI)

>0.80

0.961

Non-normed Fit Index (NNFI)

>0.90

0.83

Root mean square error of approximation (RMSEA)

<0.1, adequate goodness of fit;

<0.05, strong goodness of fit

0.063