The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age

Table 3 Measurement invariance tests across gender for the four age groups

	\({\chi }^{2}\)	df	CFI	TLI	SRMR	\(\Delta\)CFI	\(\Delta\)SRMR
Middle school students (n = 894)
Configural model	401.102***	28	0.974	0.961	0.035
Metric model	285.383***	34	0.982	0.978	0.037	0.008	0.002
Scalar model	308.267***	54	0.982	0.986	0.035	0.000	− 0.002
High school students (n = 1347)
Configural model	875.542***	28	0.963	0.944	0.050
Metric model	689.251***	34	0.971	0.965	0.051	0.008	0.001
Scalar model	706.919***	54	0.971	0.978	0.050	0.000	− 0.001
Young adults (n = 473)
Configural model	148.970***	28	0.976	0.964	0.042
Metric model	151.466***	34	0.976	0.971	0.051	0.000	0.009
Scalar model	147.818***	54	0.981	0.985	0.044	0.005	− 0.007
Older adults (n = 313)
Configural model	174.514***	28	0.990	0.984	0.035
Metric model	146.455***	34	0.992	0.990	0.036	0.002	0.001
Scalar model	158.614***	54	0.993	0.994	0.035	− 0.001	− 0.001

ISSN: 2050-2974