Table 1.

Confirmatory factor analysis.

Model	χ2/df (df)	GFI	CFI	NFI	RMSEA
Four-factor model	2.069 (268)	0.914	0.931	0.922	0.061
Three-factor model
SSL and employees’ perceived CSR were combined	5.697 (271)	0.846	0.860	0.857	0.082
Two-factor model
SSL, and employees’ perceived CSR and PEOC were combined	8.126 (274)	0.721	0.739	0.730	0.103
One-factor model	11.247 (275)	0.664	0.682	0.674	0.116

Note: SSL represents self-sacrificial leadership, CSR represents corporate social responsibility, PEOC represents pro-environmental organisational climate, and OCBE represents organisational citizenship behaviour for the environment.