. 2014 Nov 30;14:329. doi: 10.1186/s12888-014-0329-1

Table 3.

Results of the hierarchical linear regression analysis

Variables	Depressive symptoms
Variables	Block 1 (β)	Block 2 (β)	Block 3 (β)
Gender	−0.025	−0.045	−0.054^*
Age	−0.021	−0.026	0.001
Marital status	0.048	−0.02	−0.036
Dummy_e1	0.054	0.04	0.001
Dummy_e2	0.066^*	0.072^**	0.031
ERR		0.372^**	0.242^**
Over-commitment		0.148^**	0.135^**
PsyCap			−0.314^**
F	1.578	52.088^**	67.085^**
Adjusted R²	0.002	0.228	0.304
△R²	0.007	0.226^**	0.076^**

Dummy_e1: Master vs. Doctor; Dummy_e2: Bachelor vs. Doctor; ERR: effort/reward ratio; PsyCap: psychological capital.

*p < 0.05, **p < 0.01 (two-tailed).

R² (R-squared, the coefficient of determination): percentage of the sample response variation in dependent variable that is explained by the independent variable.