Table 1

Confirmatory factor analysis summary results

CFA model	CFI	RMSEA	Fit assessment36
CFA-1	0.926	0.050	Unacceptable
CFA-2	0.971	0.038	Good
CFA-3	0.944	0.021	Borderline
	ΔCFI=0.001*
	Δχ² p=0.000*
CFA-4	0.981	0.035	Good
CFA-5	0.960	0.028	Good
	ΔCFI=0.001*
	Δχ² p=0.01*
CFA-6†	0.983	0.033	Good

*Indices for measurement of invariance (the meaning of the six patient safety climate factors that is reflected in the number of factors and their items is equivalent across the groups).
†Cross-validation sample.
CFA, confirmatory factor analysis; CFI, comparative fit index; RMSEA, root mean square error of approximation.