Table 2.

Descriptive statistics and interrelations among of the observed variable.

Variable	M	SD	1	2	3	4	5	6	7	8	9
1. Gender	1.57	0.50	1
2. Major	1.98	1.48	−0.20**	1
3. Grade	1.60	0.64	0.10**	0.03	1
4. PE	27.08	23.49	−0.29**	0.51**	−0.04	1
5. MPA	2.61	0.66	0.18**	−0.06*	0.09**	−0.14**	1
6. SC	3.12	0.54	−0.17**	0.09**	−0.09**	0.15**	−0.45**	1
7. RA	2.09	0.53	0.03	−0.04	0.04	−0.08**	0.36**	−0.41**	1
8. PD	1.72	0.53	−0.03	0.01	0.03	−0.05*	0.37**	−0.45**	0.70**	1
9. LN	2.16	0.43	0.06*	−0.02	−0.001	−0.12**	0.26**	−0.27**	0.46**	0.49**	1

N = 1,843. PE, physical exercise; MPA, mobile phone addiction; SC, self-control; RA, Rumination; PD, psychological distress; LN, loneliness.

^**p < 0.01;

^*p < 0.05.