Table 2.

2CR structural equation model fit statistics

Model	Parameters	χ2 (df)	CFI	RMSEA	[95%CI]	SRMR	AIC
1. Three-level (CRc, CRr)	88	355 (187)	0.913	0.062	[0.052, 0.072]	0.067	12,606
2. Three-level (CRc + r)†	87	369 (188)	0.906	0.064	[0.054, 0.074]	0.068	12,619
3. Two-level (dimensional factors only)	110	312 (165)	0.924	0.062	[0.051, 0.072]	0.061	12,607

CFI = comparative fit index. RMSEA = root mean square error of approximation. SRMR = standardized root mean square residual. AIC = Akaike Information Criterion

^†Non-positive definite residual covariance matrix (theta)