TABLE 4.

Measurement invariance across women and men.

Model	Fit indices
	S-B χ2	df	Scaling correction	CFI	TLI	RMSEA [90% CI]	SRMR
Bifactor men	27.4	28	0.988	1.000	1.003	0.000 [0.00 –0.095]	0.044
Bifactor women	49.6*	28	1.261	0.974	0.959	0.046 [0.061–0.088]	0.050
(1) Configural	79.7*	56	1.124	0.981	0.970	0.056 [0.023–0.082]	0.049
(2) Metric	86.7	73	1.190	0.989	0.986	0.037 [0.000–0.064]	0.067
(3) Scalar	115.2*	83	1.170	0.974	0.972	0.053 [0.026–0.075]	0.102
Model comparison	Δχ2	df	P	ΔCFI	Conclusion
1 vs. 2	9.7	17	0.917	0.008	Equivalent
2 vs. 3	30.9	10	<0.001	0.015	Not equivalent

The conclusion in the model comparison section is based on a joint consideration of Δχ² and ΔCFI. Chi-square statistics were estimated with the robust maximum likelihood (MLR) estimator and Δχ² was calculated with the scale-adjusted chi-square difference test (http://www.thestatisticalmind.com/calculators/SBChiSquareDifferenceTest.htm, accessed 2021-09-06). df, degrees of freedom; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual; TLI, Tucker–Lewis Index; CFI, comparative fit index; CI, confidence interval. *p < 0.05.