TABLE 1.

The standardized factor loadings, Cronbach’s Alpha for factors and items (N = 216).

Factors & items	Standardized factor loading	Eigen value	% of variance	Cronbach’s alpha	Coefficient of stability
Effort			65.101	0.844	0.741∗∗
Workload		5.230	37.355	0.812	0.683∗∗
e36	0.828
e27	0.795
e23	0.781
e32	0.563
Social responsibility		1.583	11.309	0.765	0.720∗∗
e2	0.809
e17	0.799
e19	0.745
e8	0.578
Emotional demands		1.424	10.170	0.708	0.675∗∗
e1	0.803
e10	0.694
e37	0.652
Student-related issues		0.877	6.267	0.594	0.608∗∗
e5	0.803
e6	0.636
e21	0.476
Reward			41.397	0.819	0.678∗∗
Material reward		4.333	30.951	0.714	0.648∗∗
e3	0.706
e30	0.644
e22	0.610
e18	0.582
e16	0.560
e4	0.512
e7	0.501
Emotional reward		1.462	10.446	0.785	0.678∗∗
e29	0.312
e24	0.774
e28	0.711
e13	0.710
e11	0.564
e14	0.525
e34	0.522
ERI					0.699∗∗

^∗∗p < 0.01.