Table 4.

The goodness of fit of the three alternative nested models (N = 150).

Model	s-b χ2	df	GFI	SRMSR	CFI a	NFI a	AGFI	PNFI b
Model I: Occupational competence effects on health and life satisfaction	39.63 **	19	0.964	0.051	0.909	0.881	0.801	0.159
Model II: Model I + the direct effects of social support	20.84	15	0.980	0.035	0.974	0.937	0.862	0.134
Model III: Model II + the effects of role overload	17.21	10	0.984	0.030	0.968	0.948	0.828	0.090

Notes: * p < 0.05, ** p < 0.01, *** p < 0.005. The index value of chi-square for the null model does not explain at all the matrix of covariances: χ²(105) = 331.95. ^a Robust index, calculated using s-b χ²; ^b Parsimony index calculated using the parsimony ratio between the degrees of freedom of the tested model to the degrees of freedom of the null model. A value higher than 0.90 for the GFI, CFI and NFI indices and lower than 0.10 for the SRMSR index is considered an indication of acceptable goodness of fit.