Table 3.
Hierarchical regressions predicting the score on IAT in the IGD, AUD, and HC groups.
| Model | DV | ∆ R 2 | ∆ F | ∆ P | B | P |
|---|---|---|---|---|---|---|
| 1 | 0.058 | 5.099 | 0.027 | |||
| F4-C4 gamma coherence | 0.241 | 0.012 | ||||
| 2 | 0.118 | 3.318 | 0.013 | |||
| F4-C4 gamma coherence | 0.231 | 0.025 | ||||
| Age | −0.283 | 0.017 | ||||
| Education | −0.141 | 0.127 | ||||
| IQ | 0.097 | 0.380 | ||||
| 3 | 0.077 | 2.267 | 0.054 | |||
| F4-C4 gamma coherence | 0.221 | 0.029 | ||||
| Age | −0.310 | 0.014 | ||||
| Education | −0.075 | 0.448 | ||||
| IQ | 0.193 | 0.127 | ||||
| BDI-II | 0.248 | 0.301 | ||||
| BAI | −0.140 | 0.495 | ||||
| BIS-11 | 0.181 | 0.226 |
Hierarchical regression models predicting the score on IAT were conducted for all participants in this study. Fisher’s Z-transformed scores were used for the EEG data. 2000 sample bootstrapping was applied with regression analyses, and the significance level was set at 0.050. IAT = Young’s Internet Addiction Test; IGD = Internet gaming disorder; AUD = alcohol use disorder; HC = healthy control; F3-C3 = left hemispheric frontocontral, IQ = intelligence quotient; BDI-II = Beck Depression Inventory-II; BAI = Beck Anxiety Inventory; and BIS-11 = Barratt Impulsivity Scale-11; EEG = electroencephalography.