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. 2019 Nov 1;10:2468. doi: 10.3389/fpsyg.2019.02468

TABLE 2.

Zero-order correlation coefficients among study variables.

Study variable	2	3	4	5	6	7	8	9	10	11	12
1. T1 IGD symptoms	0.39^∗∗	–0.06	0.29^∗∗	0.31^∗∗	0.19^∗∗	0.53^∗∗	0.34^∗∗	−0.15^∗	0.21^∗∗	0.25^∗∗	0.13
2. T1 risky online behavior	–	–0.07	0.25^∗∗	0.20^∗∗	0.10	0.28^∗∗	0.42^∗∗	–0.19^∗∗	0.20^∗∗	0.13	0.06
3. T1 positive affect		–	–0.12	–0.09	0.09	−0.14^∗	0.04	0.60^∗∗	–0.10	–0.11	0.07
4. T1 negative affect			–	0.36^∗∗	0.17^∗∗	0.31^∗∗	0.20^∗∗	–0.24^∗∗	0.49^∗∗	0.21^∗∗	0.17^∗
5. T1 social anxiety				–	0.27^∗∗	0.27^∗∗	0.22^∗∗	–0.09	0.38^∗∗	0.56^∗∗	0.25^∗∗
6. T1 loneliness					–	0.12	0.26^∗∗	0.01	0.20^∗∗	0.13	0.23^∗∗
7. T2 IGD symptoms						–	0.34^∗∗	–0.29^∗∗	0.35^∗∗	0.32^∗∗	0.15^∗
8. T2 risky online behavior							–	–0.18^∗∗	0.29^∗∗	0.25^∗∗	0.20^∗∗
9. T2 positive affect								–	–0.22^∗∗	–0.06	0.14^∗
10. T2 negative affect									–	0.36^∗∗	0.23^∗∗
11. T2 social anxiety										–	0.38^∗∗
12. T2 loneliness											–

IGD = internet gaming disorder; T1 = time 1; T2 = time 2. ^∗p < 0.05. ^∗∗p < 0.01.