Table 2.

Reliability, Dimensionality, and Model Fit Statistics Obtained From R as the Three-Factor Schmid–Leiman (S-L) Solution, MPLUS One-Factor Solution, and Bifactor Solutions

Statistics	S–L three-group factors	S–L two-group factors	MPLUS (one factor)	MPLUS bifactor (general and two-group factors)
Reliability (alpha coefficient for general factor)	0.94	0.94	N/A	N/A
Omega hierarchical (ωh)	0.76	N/A	N/A	N/A
Omega total (ωt)	0.96	0.97	N/A	N/A
ECV	0.64	0.64	0.63	0.76
RMSEA	0.04	0.05	0.03	0.01

Notes: ECV = explained common variance; RMSEA = root mean square error of approximation; N/A = not applicable.