Table 1.
Symptoms assessed by CIUS items.
| Symptoms Assessed by CIUS Items | |
|---|---|
| 1 | Loss of control (LOC) |
| 1. How often do you find it difficult to stop using the Internet when you are online? | |
| 2. How often do you continue to use the Internet despite your intention to stop? | |
| 5. How often are you short of sleep because of the Internet? | |
| 9. How often have you unsuccessfully tried to spend less time on the Internet? | |
| 2 | Withdrawal symptoms (WS) |
| 14. How often do you feel restless, frustrated, or irritated when you cannot use the Internet? | |
| 3 | Coping with unpleasant mood (C) |
| 12. How often do you go on the Internet when you are feeling down? | |
| 13. How often do you use the Internet to escape from your sorrows or get relief from negative feelings? | |
| 4 | Mental and behavioral preoccupation (MBP) |
| 4. How often do you prefer to use the Internet instead of spending time with others (e.g., partner, children, parents, friends *)? | |
| 6. How often do you think about the Internet, even when not online? | |
| 7. How often do you look forward to your next Internet session? | |
| 5 | Inter- and intrapersonal conflicts (IIC) |
| 3. How often do others (e.g., partner, children, parents, friends *) say you should use the Internet less? | |
| 8. How often do you think you should use the Internet less often? | |
| 10. How often do you rush through your (home) work in order to go on the Internet? | |
| 11. How often do you neglect your daily obligations (work, school, or family life) because you prefer to go on the Internet? |