Table 2.
Differences in self-esteem and social anxiety among internet use groups.
| Scale | Normal internet use | Mild internet addiction | Severe internet addiction | Z | p | η 2 |
|---|---|---|---|---|---|---|
| SES score, median (quartiles) | ||||||
| SES1 | 8.00 (7.00, 9.00) | 8.00 (8.00, 10.00) | 9.00 (8.00, 11.00) | 178.298 | <0.001 | 0.165 |
| SES2 | 6.00 (5.00, 6.00) | 6.00 (6.00, 6.00) | 6.00 (5.00, 7.00) | 45.163 | <0.001 | 0.075 |
| SES3 | 6.00 (5.00, 7.00) | 7.00 (6.00, 9.00) | 9.00 (7.00, 11.00) | 383.318 | <0.001 | 0.211 |
| Total SES scores | 28.00 (26.00, 30.00) | 26.00 (24.00, 28.00) | 25.00 (20.50, 27.00) | 385.136 | <0.001 | 0.227 |
| SA score, median (quartiles) | ||||||
| SA1 | 32.00 (26.00, 39.00) | 38.00 (31.00, 46.00) | 43.00 (27.00, 65.00) | 260.887 | <0.001 | 0.239 |
| SA2 | 21.00 (17.00, 26.00) | 25.00 (20.00, 30.00) | 28.00 (16.00, 40.50) | 265.515 | <0.001 | 0.213 |
| SA3 | 20.00 (16.00, 24.00) | 24.00 (19.00, 29.00) | 29.00 (16.50, 37.50) | 298.585 | <0.001 | 0.214 |
| SA4 | 6.00 (4.00, 8.00) | 7.00 (5.00, 9.00) | 8.00 (4.50, 13.00) | 68.684 | <0.001 | 0.094 |
| Total SA scores | 32.00 (18.00, 48.00) | 47.00 (30.00, 64.00) | 61.00 (18.50, 104.00) | 302.856 | <0.001 | 0.256 |
SES1, SES2, SES3 represent the three factors extracted from the scale using structural equation modeling. SA1, SA2, SA3, SA4 represent the four factors extracted from the scale using structural equation modeling.