Table 2.
Internet Gaming Disorder Scale (IGDS) scores, assessments, and consistency coefficients across the three samples employed a.
| Sample | Age Group | Sex | b Sum Score | Cronbach’s Alpha | c Portion of at-Risk Gamers | c Portion of Pathologic Gamers | |||
|---|---|---|---|---|---|---|---|---|---|
| 2016 | 12–13 | Girls | 1.56 | (1.84) | 0.754 | 7.1 | (20) | 3.9 | (11) |
| Boys | 2.71 | (2.17) | 0.703 | 15.9 | (45) | 10.2 | (29) | ||
| 14–17 | Girls | 1.01 | (1.58) | 0.784 | 3.8 | (18) | 2.5 | (12) | |
| Boys | 2.38 | (2.20) | 0.770 | 12.7 | (61) | 8.8 | (42) | ||
| Total | 1.90 | (2.08) | 0.778 | 18.9 | (144) | 12.3 | (94) | ||
| 2017 | 12–13 | Girls | 0.71 | (1.34) | 0.756 | 2.7 | (8) | 1.0 | (3) |
| Boys | 1.60 | (1.65) | 0.613 | 9.6 | (28) | 3.1 | (9) | ||
| 14–17 | Girls | 0.61 | (1.05) | 0.600 | 1.9 | (9) | 0.4 | (2) | |
| Boys | 1.60 | (1.71) | 0.646 | 9.9 | (48) | 4.1 | (20) | ||
| Total | 1.21 | (1.56) | 0.724 | 12.0 | (93) | 4.4 | (34) | ||
| 2018 | 12–13 | Girls | 0.75 | (1.10) | 0.514 | 3.3 | (9) | 0.4 | (1) |
| Boys | 1.45 | (1.56) | 0.570 | 10.4 | (28) | 2.6 | (7) | ||
| 14–17 | Girls | 0.74 | (1.15) | 0.682 | 2.3 | (12) | 0.4 | (2) | |
| Boys | 1.21 | (1.37) | 0.528 | 7.6 | (39) | 2.7 | (14) | ||
| Total | 1.09 | (1.36) | 0.563 | 11.2 | (88) | 3.1 | (24) | ||
Notes. a based on N = 762 for 2016, N = 777 for 2017, N = 784 for 2018; b group mean (standard deviation); c percentages (frequencies).