TABLE 2.

Descriptive statistics for the instruments.

	Mean (SD)	Skew	Kurtosis	N
HADS-A	5.60 (3.6)	0.81	0.69	1240
Males	4.66 (3.05)	1.03	1.64	474
Females	6.19 (3.71)	0.65	0.35	766
HADS-D	3.56 (2.95)	1.22	1.74	1239
Males	3.60 (2.91)	1.33	2.46	473
Females	3.53 (2.98)	1.16	1.35	766
Buss-Perry aggression questionnaire	12.65 (4.88)	1.27	1.48	1238
Males	13.43 (4.85)	0.92	0.56	473
Females	12.17 (4.84)	1.54	2.39	765
UCLA loneliness scale	4.83 (3.98)	1.21	1.52	1224
Males	4.70 (3.82)	1.15	1.39	469
Females	4.92 (4.08)	1.24	1.55	755
GASA Wave 1	10.30 (4.61)	1.69	2.83	1248
Males	12.88 (5.21)	0.94	0.52	477
Females	8.70 (3.32)	2.81	10.31	771
GASA Wave 3	9.60 (4.21)	2.10	4.76	1251
Males	11.62 (4.90)	1.33	1.91	476
Females	8.36 (3.14)	3.23	12.13	775
IGD-scale	0.43 (1.15)	3.50	14.15	1258
Males	0.82 (1.50)	2.26	5.31	481
Females	0.20 (0.78)	5.84	42.75	777

Details concerning the distributions of scores in GASA and the IGD scale can be found in Supplementary Tables S1, S2.