Table 3.

Model Fit Indices from Interpersonal Needs Questionnaire-10 Baseline Confirmatory Factor Analysis

Non-autistic group	χ2/df	CFI	SRMR	RMSEA	pClose
Model 1	2.903	0.843	0.118	0.075	0.008
Model 2	2.239	0.904	0.119	0.061	0.160
Autistic group
Model 1	2.939	0.969	0.050	0.075	0.021
Model 2	2.595	0.976	0.045	0.068	0.046

Model 1 = two factor model, no error terms co-varied. Model 2 = previously published model with two pairs of error terms co-varied.^7,9 Bold indicates adequate or excellent model fit: CMIN/df <5, CFI >0.9, SRMR <0.09, RMSEA <0.1, pClose >0.05. Model run by using asymptotic distribution-free estimation in the non-autistic group and maximum likelihood estimation in the autistic group.

CFI, comparative fit index; CMIN/df, chi-square/degrees of freedom; pClose, p of Close Fit; RMSEA, root mean square of approximation; SRMR, standardized root mean square residual.