From: Internet addiction test: Croatian preliminary study
1st grade
2nd grade
3rd grade
4th grade
TOTAL
Boys
83
39
14
59
195
Girls
46
70
25
16
157
129
109
75
352
Age - M (sd)
16.0 (.51)
17.0 (.56)
17.80 (.57)
18.73 (.53)
17.06 (1.17)