TABLE 1.

Confirmatory factor analyses.

Model	χ2	df	χ2/df	RMSEA	GFI	IFI	CFI
Four-factor model (SS/CBI/COBI/PHB)	132.03	71	1.86	0.06	0.92	0.96	0.96
Three-factor model (SS/CBI/COBI + PHB)	297.59	74	4.02	0.12	0.83	0.86	0.86
Three-factor model (SS/COBI/CBI + PHB)	300.03	74	4.05	0.12	0.82	0.86	0.86
Three-factor model (SS/PHB/COBI + CBI)	491.98	74	6.65	0.17	0.72	0.73	0.73
Three-factor model (CBI/COBI/SS + PHB)	201.99	74	2.73	0.09	0.88	0.91	0.91
Three-factor model (CBI/PHB/SS + COBI)	376.54	74	5.09	0.14	0.79	0.81	0.81
Three-factor model (PHB/COBI/SS + CBI)	627.83	74	8.48	0.19	0.66	0.65	0.64
Two-factor model (SS/CBI + COBI + PHB)	573.04	76	7.54	0.18	0.69	0.67	0.66
One-factor model (SS + CBI + COBI + PHB)	812.05	77	11.33	0.22	0.62	0.51	0.50

SS, self-perceived status; CBI, competitive behavior intention; COBI, cooperative behavior intention; and PHB, proactive helping behavior.