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. 2021 Nov 2;8(11):e30961. doi: 10.2196/30961

Table 2.

Goodness-of-fit indices for the tested models.

Model	Chi-square (df)	P value	χ²/df	CFI^a	TLI^b	RMSEA^c (90% CI)	SRMR^d	AIC^e
Model 1^f	62.4 (15)	<.001	4.16	0.79	0.61	0.20 (0.14-0.25)	0.1061	120.1
Model 2^g	137.2 (15)	<.001	9.14	0.46	−0.01	0.321 (0.27-0.37)	0.2878	195.1
Model 1R^h	7.6 (9)	.58	0.84	1	1.02	0.000 (0.00-0.11)	0.0554	77.56

^aCFI: comparative fit index.

^bTLI: Tucker-Lewis index.

^cRMSEA: root mean square error of approximation.

^dSRMR: standardized root mean square.

^eAIC: Akaike information criterion.

^fModel 1: initial model.

^gModel 2: alternative model.

^hModel 1R: initial model respecified.