Table 2. Changes of Symptoms Over Time in STICA (n = 72) vs WLC (n = 71) Participantsa.
| End Point | Measurement Point, Mean (SD) | Main Interaction Effect | |||
|---|---|---|---|---|---|
| t0 | t1 | t2 | F Valueb | P Value | |
| AICA-S | |||||
| STICA | 13.1 (3.83) | 5.7 (3.99) | 4.6 (3.46) | F2,90 = 128.64 | ≤.001 |
| WLC | 12.7 (4.14) | 11.4 (4.70) | 10.5 (4.33) | F2,118 = 14.78 | ≤.001 |
| Interaction (time × treatment) | F2,202 = 33.95 | ≤.001 | |||
| AICA-Cc | |||||
| STICA | 18.6 (4.9) | 8.3 (5.5) | 6.3 (6.3) | F2,111 = 151.28 | ≤.001 |
| WLC | 18.6 (5.8) | 15.9 (7.4) | 13.6 (8.1) | F2,103 = 11.92 | ≤.001 |
| Interaction (time × treatment) | F2,231 = 19.88 | ≤.001 | |||
| Time Spent Online (weekday), h/d | |||||
| STICA | 6.5 (3.11) | 3.4 (3.03) | 3.0 (2.21) | F2,11 = 46.66 | ≤.001 |
| WLC | 5.8 (3.14) | 5.8 (3.29) | 5.7 (3.09) | F2,51 = 0.61 | .67 |
| Interaction (time × treatment) | F2,228 = 15.74 | ≤.001 | |||
| Time Spent Online (weekend), h/d | |||||
| STICA | 8.4 (3.91) | 4.1 (2.82) | 3.6 (2.57) | F1.7,96.7 = 59.25 | ≤.001 |
| WLC | 7.6 (3.73) | 5.6 (3.43) | 5.1 (3.17) | F2,118 = 7.51 | .001 |
| Interaction (time × treatment) | F2,230 = 2.89 | ≤.001 | |||
| GAFd | |||||
| STICA | 69.3 (10.00) | 75.7 (8.93) | 76.4 (10.40) | F2,110 = 17.19 | ≤.001 |
| WLC | 69.5 (9.52) | 70.6 (9.25) | 69.5 (9.73) | F2,118 = 0.89 | .412 |
| Interaction (time × treatment) | F2,228 = 9.26 | ≤.001 | |||
| BDI-II | |||||
| STICA | 13.9 (9.54) | 8.1 (8.35) | 5.8 (7.24) | F2,104 = 37.46 | ≤.001 |
| WLC | 15.4 (8.73) | 15.0 (9.64) | 12.3 (8.97) | F2,118 = 10.80 | ≤.001 |
| Interaction (time × treatment) | F2,230 = 2.61 | .08 | |||
Abbreviations: AICA-C, Assessment of Internet and Computer game Addiction Checklist; AICA-S, subjective Assessment of Internet and Computer Game Addiction scale; BDI-II, Beck Depression Inventory II; value (analysis of variance); GAF, Global Assessment of Functioning; STICA, Short-term Treatment for Internet and Computer Game Addiction (treatment group); WLC, wait-list control.
Total of 143 participants evaluated in last observation carried forward; analysis of variance with factors time (t0, t1, t2) and treatment (STICA, WLC); t0, baseline; t1, midtreatment; t2 termination.
Determined with analysis of variance.
Possible score range: 0 to 6.5 (nonpathologic behavior), 7.0 to 13.0 (moderate, ie, abusive, addictive behavior), and greater than 13.0 (addictive behavior) indicating IA.
Measures psychosocial functioning on a scale from 0 (insufficient information) to 100 (superior functioning).