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. 2010 Sep 9;10:544. doi: 10.1186/1471-2458-10-544

Table 4.

Differences split out for different education levels

Variables M13 Mean (SD)
Total = 367
M24 Mean (SD)
Total = 367
Lower General Secondary Education Nmax = 54^
Internet hours/day 2.85 (3.80) 2.94 (1.84)
CIUS score1 1.90 (0.57) 1.88 (0.74)
Game hours/week 2.21 (2.38) 5.90 (11.43)
CGUS score2 1.46 (0.56) 1.56 (0.66)
Higher General Secondary Education
Nmax = 103
Internet hours/day 1.55 (1.88) 2.63** (2.22)
CIUS score 1.62 (0.51) 1.69 (0.60)
Game hours per week 4.04 (5.89) 4.63 (8.76)
CGUS score 1.43 (0.43) 1.45 (0.42)
Pre-university education
Nmax = 110
Internet hours/day 1.07 (0.86) 2.04** (1.88)
CIUS score 1.59 (0.46) 1.62 (0.56)
Game hours/week 3.65 (5.82) 4.27 (5.60)
CGUS score 1.39 (0.46) 1.47* (0.38)
Pre-university education + greek/latin Nmax = 100
Internet hours/day 1.05 (1.31) 1.66** (1.25)
CIUS score 1.58 (0.44) 1.61 (0.61)
Game hours/week 2.59 (4.58) 3.14 (3.89)
CGUS score 1.41 (0.37) 1.44 (3.78)

1Compulsive Internet Use Scale * p ≤ 0.05

2Compulsive Game Use Scale ** p ≤ 0.01

^ The sample of game hours/week is smaller because a lot of students do not use games.

Paired samples T-test