Table 1.

Means, standard deviations and correlation coefficients of variables.

	M	SD	1	2	3
1. Psychological capital	4.89	0.67	—
2. Perceived social support	5.59	0.92	0.544**	—
3. Voluntary motivation	5.39	0.84	0.651**	0.606**	—
4. Volunteering behavior	1.38	0.41	0.461**	0.281**	0.384**

^*Represents p < 0.05;

^**Represents p < 0.01. The same is as following.