. 2020 Oct 23;17(21):7765. doi: 10.3390/ijerph17217765

Table 2.

Fit indexes of the one-factor model and the correlated-factor models originally proposed for the BAI as well as the AVE, shared variance and composite reliability of their factors.

Index	Factor	1F	Correlated-Factor Models			Shared Variance (r²)
Index	Factor	1F	2F	3F	4F	F2	F3	F4
χ²		1031.017	894.327	908.672	824.715
df		189	188	186	183
p-value		<0.001	<0.001	<0.001	<0.001
χ²/df		5.455	4.757	4.885	4.507
GFI		0.794	0.836	0.831	0.846
AGFI		0.748	0.798	0.791	0.806
NFI		0.797	0.824	0.821	0.838
CFI		0.827	0.855	0.852	0.869
RMSEA (90% CI)		0.099 (0.093, 0.105)	0.091 (0.085, 0.097)	0.093 (0.087, 0.099)	0.088 (0.082, 0.094)
SRMR		0.063	0.059	0.060	0.057
Average variance extracted (AVE)	GF = Anxiety	0.422
	F1 = Somatic		0.429			0.759
	F2 = Cognit.		0.489
	F1 = Somatic			0.415		0.767	0.922
	F2 = Subject.			0.522			0.731
	F3 = Panic			0.449
	F1 = Neuroph.				0.451	0.854	0.924	0.750
	F2 = Subject.				0.522		0.733	0.453
	F3 = Panic				0.450			0.752
	F4 = Autono.				0.431
McDonald’s omega or composite reliability	GF = Anxiety	0.938
	F1 = Somatic		0.912
	F2 = Cognit.		0.869
	F1 = Somatic			0.885
	F2 = Subject.			0.867
	F3 = Panic			0.762
	F1 = Neuroph.				0.850
	F2 = Subject.				0.867
	F3 = Panic				0.762
	F4 = Autono				0.750

Note. 1F = one-factor model: GF = general factor of anxiety (items 1–21). Correlated-factor models: two-factor: F1 = somatic symptoms with 14 indicators (items 1, 2, 3, 6, 7, 8, 11, 12, 13, 15, 18, 19, 20 and 21) and F2 = cognitive symptoms with seven indicators (items 4, 5, 9, 10, 14. 16 and 17). three-factors: F1 = somatic symptoms with 11 indicators (items 1, 2, 3, 6, 8, 12, 13, 18, 19, 20 and 21), F2 = subjective symptoms with six indicators (items 4, 5, 9, 10, 14 and 17) and F3 = panic symptoms with four indicators (items 7, 11, 15 and 16). four-factors: F1 = neurophysiological symptoms with seven indicators (items 1, 3, 6, 8, 12, 13 and 19), F2 = subjective symptoms with six indicators (items 4, 5, 9, 10, 14 and 17), F3 = panic symptoms with four indicators (items 7, 11, 15 and 16) and F4 = autonomic symptoms with four indicators (items 2, 18, 20 and 21). Method: maximum likelihood method. Sample size (n) = 455.