Academic grit scale for Chinese middle- and upper-grade primary school students: testing its factor structure and measurement invariance

Table 1 Goodness-of-fit statistics for measurement models

Model	S-B χ²	df	CFI	TLI	RMSEA	SRMR
The one-factor model	157.56	35	0.980	0.974	0.043	0.021
The three-factor model	154.18	32	0.980	0.971	0.045	0.021

ISSN: 2050-7283