NPG n=888 NPB n=695 AMP n=283 X2 (df)
Gender
Male
Female

0%
100%

100%
0%

56.5%
43.5%

1585.88***
(2)
Internet use
Average
High user

100%
0%

100%
0%

24.0%
76.0%

1359.24***
(2)
Video games
Average
High user

100%
0%

81.6%
18.4%

71.0%
29.0%

237.30***
(2)
  Mean
(SD)
Mean
(SD)
Mean
(SD)
F
Age 15.37a
(0.96)
15.43ab
(1.00)
15.58b (0.93) 4.84*
PSU 5.39a
(6.00)
5.41a
(5.82)
10.09b
(10.74)
56.00***
PG 0.07a
(0.30)
0.13a
(0.40)
0.71b
(1.60)
115.40***
Delinquency 49.08a
(6.15)
49.68a
(6.37)
58.44b
(14.04)
165.21***
Table 2: Variables used in the clustering analysis; Notes: Means that do not share the same superscript letter were significantly different based on the Scheffé test (p<0.05). PSU=problems with substance use (continuous score). PG: gambling problems (continuous score); NPG: non-problematic girls; NPB: non-problematic boys; AMP: Adolescents with multiple problems. *p<0.05, ***p<0.001