The factor structure and psychometric properties of the Chinese version of the Positive and Negative Suicide Ideation Inventory (PANSI-C) in a non-clinical sample of Chinese adolescents

Table 4 Measurement invariance testing results of the PANSI-C across different groups

Model	χ²	df	TLI	CFI	SRMR	RMSEA	∆TLI	∆CFI	∆RMSEA
Across gender
Model 1	823.480	152	.913	.927	.051	.059	–	–	–
Model 2	841.111	164	.918	.926	.056	.057	+ .005	− .001	− .002
Model 3	867.567	176	.919	.921	.058	.057	+ .001	− .005	0
Model 4	899.094	190	.929	.926	.058	.053	+ .01	+ .005	− .004
Across family structure
Model 1	805.982	152	.910	.925	.051	.062	–	–	–
Model 2	828.913	164	.915	.924	.057	.060	+ .005	− .001	− .002
Model 3	844.225	176	.918	.921	.057	.059	+ .003	− .003	− .001
Model 4	887.175	190	.926	.923	.058	.056	+ .008	+ .002	− .003
Across age
Model 1	875.323	152	.904	.919	.053	.061	–	–	–
Model 2	909.603	164	.907	.916	.061	.060	+ .003	− .003	− .001
Model 3	924.590	176	.910	.913	.062	.059	+ .003	− .003	− .001
Model 4	947.191	190	.922	.918	.062	.055	+ .012	+ .005	− .004

Model 1, configural invariance; Model 2, weak invariance; Model 3, strong invariance; Model 4, strict invariance; χ², Chi-square goodness of fit; df, degrees of freedom; TLI, Tucker–Lewis index; CFI, comparative fit index; SRMR, standardized root mean square residual; RMSEA, root mean square error of approximation; ∆TLI, TLI difference; ∆CFI, CFI difference; ∆RMSEA, RMSEA difference

ISSN: 1744-859X