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Descriptive statistics for the subscales of the Chinese version of revised Internet Gaming Cognition Scale.
| Items | Score | Mean ± SD | Floor Effect (%) | Ceiling Effect (%) |
|---|---|---|---|---|
| Overall scale | 0–60 | 16.8 ± 11.7 | 6.5 | 0.7 |
| Perceived rewards of Internet gaming | 0–28 | 7.2 ± 6.0 | 11.7 | 0.7 |
| Perceived urges for playing Internet games | 0–16 | 3.7 ± 3.5 | 21.6 | 1.0 |
| Perceived unwillingness to stop playing without completion of gaming tasks | 0–16 | 5.9 ± 3.8 | 6.8 | 1.7 |
