TABLE 3.

Descriptive statistics and correlation analysis of each variable.

Variables	Mean	SD	Physical exercise	Self-efficacy	Self-control	Internet addiction	Compulsive	Withdrawal symptoms	Tolerance	Interpersonal health issues	Time management issues
Physical exercise	3.82	0.80	1.00
Self-efficacy	2.88	0.70	0.28**	1.00
Self-control	3.26	0.80	0.25**	0.47**	1.00
Internet addiction	3.58	0.62	–0.25**	–0.24**	–0.54**	1.00
Compulsive	3.48	0.66	–0.21**	–0.23**	–0.52**	0.88**	1.00
Withdrawal symptoms	3.59	0.64	–0.24**	–0.24**	–0.51**	0.96**	0.82**	1.00
Tolerance	3.59	0.67	–0.24**	–0.2**	–0.48**	0.95**	0.76**	0.9**	1.00
Interpersonal health issues	3.57	0.67	–0.23**	–0.19**	–0.49**	0.93**	0.76**	0.86**	0.9**	1.00
Time management issues	3.66	0.71	–0.23**	–0.21**	–0.5**	0.91**	0.72**	0.85**	0.87**	0.86**	1.00

**p < 0.01.