. 2023 Jan 6;15(2):297. doi: 10.3390/nu15020297

Table 2.

Confirmatory factor analysis fit indices of the original and alternative models of the Eating Attitudes Test (EAT) in vegetarians, vegans, and omnivores.

	x² (df)	AIC	CFI	RMSEA	GFI	NFI	TLI	AGFI
Three-factor model
Vegetarian	1273.28 (296) *	1383.28	0.72	0.11 [0.10,0.12]	0.76	0.67	0.70	0.72
Vegan	1651.93 (296) *	1761.93	0.80	0.09 [0.09,0.09]	0.81	0.77	0.78	0.77
Omnivore	1692.26 (296) *	1802.26	0.68	0.11 [0.10,0.11]	0.75	0.64	0.65	0.70
Unidimensional model
Vegetarian	1710.01 (299) *	1814.01	0.60	0.13 [0.13,0.14]	0.68	0.56	0.57	0.62
Vegan	2227.51 (299) *	2331.51	0.71	0.11 [0.10,0.11]	0.74	0.68	0.69	0.70
Omnivore	1865.42 (299) *	1969.42	0.64	0.11 [0.11,0.12]	0.72	0.60	0.61	0.67
20-item four-factor model ^a
Vegetarian	508.66 (164) *	600.66	0.87	0.09 [0.08,0.10]	0.84	0.82	0.85	0.80
Vegan	904.77 (164) *	996.77	0.87	0.09 [0.08,0.09]	0.85	0.84	0.84	0.81
Omnivore	722.00 (164) *	854.00	0.83	0.09 [0.08,0.10]	0.85	0.79	0.80	0.81
16-item four factor model ^b
Vegetarian	325.90 (98) *	433.90	0.90	0.09 [0.09,0.10]	0.88	0.87	0.88	0.83
Vegan	526.17 (98) *	634.17	0.92	0.09 [0.08,0.09]	0.90	0.90	0.90	0.86
Omnivore	463.42 (98) *	571.42	0.88	0.09 [0.09,0.10]	0.89	0.86	0.86	0.64

Note. AIC = Akaike information criteria, CFI = comparative fit index, RMSEA = root mean square error of approximation, GFI = goodness of fit index, NFI = formed fit index, TLI = Tucker–Lewis index, AGFI = adjusted goodness of fit index. * p < 0.001. n = 1271 (278 vegetarian, 580 vegan, 413 omnivore). ^a 20-item four-factor model = Dieting (item 1, 10, 11, 12, 14, 22, 23, 24), Oral Control (item 8, 13, 26), Awareness of Food Contents (item 6, 7, 16, 17), Food Preoccupation (item 3, 4, 18, 19, 21). ^b 16-item four-factor model = Self-perception of Body Shape (item 1, 11, 14), Dieting (item 10, 12, 22, 23, 24), Awareness of Food Contents (item 6, 7, 16, 17), Food Preoccupation (item 3, 4, 18, 21).