Factor structure and sex invariance of the temporal experience of pleasure scale (TEPS) in Chinese university students and clinical population

Table 5 Measurement invariance across clinical and non-clinical samples based on CFA

	X²	df	CFI	BIC	SRMR	RMSEA (90%CI)	ΔCFI	ΔRMSEA
configural	418.548	226	0.922	37,843.902	0.054	0.051 (0.043 0.059)
metric	444.234	239	0.917	37,785.676	0.061	0.051 (0.044 0.059)	−0.005	0.000
scalar	470.730	252	0.911	37,728.430	0.062	0.052 (0.044 0.059)	−0.006	+ 0.001
strict	508.677	269	0.903	37,661.713	0.065	0.052 (0.045 0.059)	−0.007	0.000

Note: Measurement invariance across clinical and non-clinical samples analysis based on our newly explored structure (17 items and four factor structure). Model a, configural invariance; Model b, metric invariance; Model c, scalar invariance; Model d, error variance invariance. X², Chi-square; df, degrees of freedom; CFI, comparative fit index; RMSEA, root-mean-square error of approximation; SRMR, standardized root mean squared residual; BIC, Bayesian information criterion

ISSN: 1471-244X