Table 4.

Measurement invariance fit indices

Model	χ2	df	CFI	TLI	RMSEA [95% CI]
One-factor model
Configural	11,855.74	1820	0.987	0.985	0.064 [0.063–0.065]
Metric	12,131.20	2171	0.987	0.987	0.058 [0.057–0.059]
Scalar	13,947.57	2360	0.985	0.986	0.060 [0.059–0.061]
Two-factor model
Configural	6046.60	1792	0.995	0.993	0.042 [0.041–0.043]
Metric	8884.20	2143	0.991	0.991	0.048 [0.047–0.049]
Scalar	10,739.80	2440	0.989	0.990	0.050 [0.049–0.051]

χ2 Adjusted chi-squared test for model fit, df Degrees of freedom, CFI Comparative Fit Index, TLI Tucker-Lewis Index, RMSEA Root Mean Squared Error of Approximation