. 2022 Apr 7;11(2):427–450. doi: 10.1556/2006.2022.00013

Table 3.

Fit indices of the four-factor, unidimensional, and second-order CFA models for specific (potential) Internet-use disorders measured by ACSID-11.

		Gaming disorder
		Frequency					Intensity
Model	df	CFI	TLI	SRMR	RMSEA	χ ²/df	CFI	TLI	SRMR	RMSEA	χ ²/df
Four-factor model	38	0.991	0.987	0.031	0.051	2.13	0.993	0.990	0.029	0.043	1.81
Unidimensional model	27	0.969	0.961	0.048	0.087	4.32	0.970	0.963	0.047	0.082	3.99
Second-order factor model	40	0.992	0.988	0.031	0.047	1.99	0.992	0.989	0.032	0.045	1.89

		Online buying-shopping disorder
		Frequency					Intensity
Model	df	CFI	TLI	SRMR	RMSEA	χ ²/df	CFI	TLI	SRMR	RMSEA	χ ²/df
Four-factor model	38	0.996	0.994	0.019	0.034	2.07	0.995	0.992	0.020	0.037	2.30
Unidimensional model	27	0.981	0.976	0.037	0.070	5.58	0.986	0.982	0.031	0.056	3.98
Second-order factor model	40	0.996	0.994	0.021	0.036	2.19	0.994	0.992	0.023	0.038	2.40

		Online pornography-use disorder
		Frequency					Intensity
Model	df	CFI	TLI	SRMR	RMSEA	χ ²/df	CFI	TLI	SRMR	RMSEA	χ ²/df
Four-factor model	38	0.993	0.989	0.034	0.054	1.99	0.987	0.981	0.038	0.065	2.43
Unidimensional model	27	0.984	0.979	0.044	0.075	2.91	0.976	0.970	0.046	0.082	3.27
Second-order factor model	40	0.993	0.991	0.033	0.049	1.83	0.984	0.979	0.039	0.068	2.59

		Social-networks-use disorder
		Frequency					Intensity
Model	df	CFI	TLI	SRMR	RMSEA	χ ²/df	CFI	TLI	SRMR	RMSEA	χ ²/df
Four-factor model	38	0.993	0.990	0.023	0.049	3.03	0.993	0.989	0.023	0.052	3.31
Unidimensional model	27	0.970	0.963	0.048	0.096	8.89	0.977	0.972	0.039	0.085	7.13
Second-order factor model	40	0.992	0.989	0.027	0.053	3.39	0.991	0.988	0.025	0.056	3.64

		Online gambling disorder
		Frequency					Intensity
Model	df	CFI	TLI	SRMR	RMSEA	χ ²/df	CFI	TLI	SRMR	RMSEA	χ ²/df
Four-factor model	38	0.997	0.996	0.027	0.059	1.70	0.997	0.996	0.026	0.049	1.47
Unidimensional model	27	0.994	0.992	0.040	0.078	2.20	0.991	0.989	0.039	0.080	2.28
Second-order factor model	40	0.997	0.996	0.029	0.054	1.58	0.997	0.995	0.029	0.053	1.55

Notes. Sample sizes varied for gaming (n = 440), online shopping (n = 944), online-pornography use (n = 340), social-networks use (n = 854), and online gambling (n = 200); ACSID-11 = Assessment of Criteria for Specific Internet-use Disorders, 11-items.