Table 3.
Hierarchical regression analyses predicting addictive Facebook use at T2 and mental health at T2
| β | [95% CI] | T | Adjusted R2 | Changes in R2 | |
|---|---|---|---|---|---|
| Model 1: Addictive FB use T2 | |||||
| Step 1, F(2,346) = 0.846, p = .430 | −.001 | ||||
| Age | .070 | [−0.024, 0.120] | 1.301 | ||
| Gender | .007 | [−1.391, 1.573] | 0.121 | ||
| Step 2, F(3,345) = 62.762, p < .001 | .347 | .348 | |||
| Duration of daily FB use T1 | .590** | [1.771, 2.369] | 13.627 | ||
| Model 2: Depressiveness T2 | |||||
| Step 1, F(2,346) = 0.482, p = .618 | −.003 | ||||
| Age | −.010 | [−0.141, 0.118] | −0.177 | ||
| Gender | .051 | [−1.372, 3.938] | 0.950 | ||
| Step 2, F(3,345) = 7.936, p < .001 | .056 | .062 | |||
| Addictive FB use T1 | .249** | [0.250, 0.601] | 4.773 | ||
| Model 3: Insomnia T2 | |||||
| Step 1, F(2,346) = 3.857, p < .05 | .016 | ||||
| Age | .145** | [0.027, 0.170] | 2.728 | ||
| Gender | −.017 | [−1.699, 1.219] | −0.323 | ||
| Step 2, F(3,345) = 6.842, p < .001 | .048 | .034 | |||
| Addictive FB use T1 | .186** | [0.078, 0.274] | 3.543 | ||
| Model 4: PMH T2 | |||||
| Step 1, F(2,346) = 0.865, p = 0.422 | −.001 | ||||
| Age | .051 | [−0.039, 0.114] | 0.956 | ||
| Gender | −.045 | [−2.238, 0.907] | −0.832 | ||
| Step 2, F(3,345) = 7.884, p < .001 | .056 | .059 | |||
| Addictive FB use T1 | −.244** | [−0.351, −0.143] | −4.671 | ||
Note. N = 349. In Step 2, only the newly included variable is presented. PMH: positive mental health; FB: Facebook; β: standardized coefficient beta; CI: confidence interval.
**p < .01. *p < .05.