Evaluating the latent structure of the non-social domain of autism in autistic adults

Table 2 Fit indices and model comparisons of the Adult Routines Inventory

Model	Description	Fit indices
Model	Description	RMSEA	CFI	TLI	χ² (df)	No. of free parameters
Evans et al. [12] two-factor model
1	Two-factor CFA model (n = 833)	0.073	0.858	0.851	4712.245** (859)	216
EFA model
2	Four-factor EFA model (n = 833)	0.056	0.907	0.891	4536.899** (1271)	214
3	Five-factor EFA model (n = 833)	0.050	0.926	0.910	3792.204** (1220)	265
ESEM model
4	Five-factor ESEM (n = 833) including 44 items	0.047	0.956	0.943	2065.353** (736)	386

Note RMSEA, root mean square error of approximation; CFI, comparative fit index; TLI, Tucker–Lewis index; χ², Chi-square statistic; df, degrees of freedom
** p < 0.01

ISSN: 2040-2392