Table 2.

Mean, SD, and Spearman’s correlation matrix with P values of overall variables.

Variables	1	2	3	4	5	6	7	8	9
1. Age	1.00	—a	—	—	—	—	—	—	—
2. Education	0.66 (<.001)	1.00	—	—	—	—	—	—	—
3. Working statusb	.64 (<.001)	.42 (<.001)	1.00	—	—	—	—	—	—
4. Problematic online gaming	−0.18 (<.001)	−0.16 (<.001)	−0.18 (<.001)	1.00	—	—	—	—	—
5. Global Severity Index	−0.20 (<.001)	−0.21 (<.001)	−0.15 (<.001)	0.52 (<.001)	1.00	—	—	—	—
6. BISc self-control	−0.06 (=.17)	−0.06 (=.18)	−0.08 (=.07)	0.19 (<.001)	0.16 (<.001)	1.00	—	—	—
7. BIS impulsive behavior	−0.09 (=.03)	−0.12 (=.006)	−0.04 (=.38)	0.25 (<.001)	0.13 (<.001)	0.37 (<.001)	1.00	—	—
8. BIS impatience	−0.06 (=.14)	−0.03 (=.43)	−0.03 (=.44)	0.36 (<.001)	0.33 (<.001)	0.22 (<.001)	0.43 (<.001)	1.00	—
9. BIS total score	−0.09 (=.04)	−0.09 (=.047)	−0.06 (=.15)	0.33 (<.001)	0.27 (<.001)	0.78 (<.001)	0.76 (<.001)	0.70 (<.001)	1.00
Mean (SD)	21.38 (4.48)	13.00 (2.55)	1.70 (0.85)	0.74 (0.66)	12.8 (3.76)	17.37 (4.40)	9.96 (3.06)	12.56 (3.43)	39.70 (8.02)

^aThe correlation coefficient was not shown as it was shown in the asymmetrically diagonal position of the table.

^bWorking status: it was coded as 1=“does not work,” 2=“has a part-time job,” and 3=“has a full job.”

^cBIS: Barratt Impulsiveness Scale (version 21).