Internet user group Negative affect score (Mean) Standard deviation
Addictive (Internet addiction test score < 50) 26.81    7.414    
Non- addictive (Internet addiction test score ≥ 50) 21.78 6.384
t=2.773 p=0.007
Table 4: Comparison of the mean negative affect scores between addictive internet users (n=17) and non-addictive internet users (n=73).