How does physical exercise influence self-efficacy in adolescents? A study based on the mediating role of psychological resilience

Table 5 Comparative fit indices for alternative factor structures of key constructs

Model	Factor	χ 2	df	△χ 2 (△df)	CFI	TLI	SRMR	RMSEA (90%CI)
Three-factor model	PE, PR, SE	770.559	227	-	0.979	0.977	0.021	0.039 (0.36 − 0.042)
Two-factor model	PE + PR, SE	2398.750	229	1628.191 (2)	0.917	0.908	0.065	0.077 (0.074–0.079)
One-factor model	PE + PR + SE	9945.823	230	9175.264 (3)	0.629	0.592	0.138	0.162 (0.159–0.165)

PE, Physical Exercise. PR, Psychological Resilience. SE, Self-Efficacy. All △χ 2 passed the significance test at 0.05 level

ISSN: 2050-7283