TABLE 4a.

Tests of measurement invariance of the FKB-6 real.

Model	χ2 (df)	Δχ2	Δdf	p	CFI	ΔCFI	RMSEA	ΔRMSEA
Sex
Configural invariance	26.352 (16)				0.996		0.037
Female	21.838 (8)				0.988		0.059
Male	4.745 (8)				1		0.000
Metric invariance	27.508 (20)	1.156	4	0.121	0.997	0.001	0.028	0.009
Scalar invariance	57.165 (24)	29.658	4	0.001	0.987	0.010	0.052	0.024
Partial scalar invariancea	41.841 (23)	14.333	3	0.009	0.993	0.004	0.041	0.013
Partial strict invariancea	52.178 (29)	10.337	6	0.005	0.989	0.004	0.043	0.002
Age
Configural invariance	80.194 (48)				0.993		0.047
18–29	13.512 (8)				0.993		0.044
30–39	13.625 (8)				0.991		0.053
40–49	12.810 (8)				0.995		0.040
50–59	12.640 (8)				0.993		0.048
60–69	15.901 (8)				0.991		0.051
≥70	11.702 (8)				0.994		0.042
Metric invariance	105.688 (68)	25.493	20	0.002	0.992	0.001	0.042	0.005
Scalar invariance	136.984 (88)	31.296	20	0.006	0.990	0.002	0.041	0.001
Strict invariance	164.732 (128)	27.748	40	0.015	0.988	0.002	0.038	0.003

^aThe intercept of Item 8 was freed to vary between groups.