Table 1.

Presents the CFA results.

Model	The range of factor loadings	χ2	df	χ2/df	CFI	TLI	RMSEA
4-Factor model (perceived social support, role cognition, work autonomy, professional identity)	0.457~0.941	4803.126	970	4.952	0.891	0.884	0.074
3-Factor model (perceived social support, role cognition + work autonomy, professional identity)	0.470~0.900	2928.736	399	7.340	0.882	0.871	0.094
2-Factor model (perceived social support + work autonomy + role cognition, professional identity)	0.473~0.891	3483.667	251	13.879	0.815	0.797	0.134
1-Factor model (perceived social support + role cognition + work autonomy + professional identity)		32600.007	1,035	34.976	1.000	–	0.217

As shown in that table, the fit indices revealed support for the hypothesized 4-factor model suggesting support for the distinctiveness of the constructs used in this study. The lowest factor loading of each item is greater than 0.30, which can effectively represent the latent variable it measures (74).