Table 2.

Regression analysis of the relationship between various variables.

Regression equation		Overall fit index		Significance of regression coefficient
Dependent variables	Independent variables	R	R2	F	β	t
Cyberbullying		0.25	0.06	18.05***
	Gender				0.03	1.69
	Grade				−0.01	−1.14
	Cumulative ecological risk				0.07	7.22***
Belief in a just world		0.28	0.08	22.32***
	Gender				−0.01	−0.08
	Grade				0.03	1.17
	Cumulative ecological risk				−0.22	−8.07***
Moral disengagement		0.38	0.14	33.52***
	Gender				−0.20	−4.12***
	Grade				0.05	2.12*
	Cumulative ecological risk				0.11	5.21***
	Belief in a just world				−0.18	−6.90***
Cyberbullying		0.42	0.18	35.21***
	Gender				0.05	2.90**
	Grade				−0.02	−1.51
	Cumulative ecological risk				0.04	3.91**
	Belief in a just world				−0.06	−5.14***
	Moral disengagement				0.12	7.89***

*p < 0.05, **p < 0.01, ***p < 0.001.