Table 4.

Results of the confirmatory factor analysis (CFA). A fourth model is included in the CFA to explore potential improvements only.

Model	npara	χ2b	df	CFIc	TLId	RMSEAe	SRMRf
Four-factor	106	559.7	164	0.90	0.88	0.10	0.12
Unidimensional	100	837.3	170	0.82	0.80	0.12	0.15
Hierarchical	104	580.9	166	0.89	0.87	0.10	0.12
Hierarchical modified	101	426.1	146	0.93	0.91	0.09	0.11

^an_par : number of parameters estimated in the CFA.

^bχ²: scaled chi-squared test.

^cCFI: Comparative Fit Index.

^dTLI: Tucker Lewis Index.

^eRMSEA: Root Mean Square Error of Approximation.

^fSRMR: Standardized Root Mean Square Residual.