Model | ||||||
---|---|---|---|---|---|---|
Model 1: The total effect model (criterion: depression) | ||||||
R | R2 | F | P | β | t | P |
0.41 | 0.17 | 18.55 | < 0.001 |  | ||
Constant | −0.49 | −1.80 | 0.07 | |||
Only child | 0.25** | 2.69 | < 0.01 | |||
Family income per month | −0.04 | − 0.99 | 0.32 | |||
Family area | 0.08 | 0.70 | 0.48 | |||
Time spent on the phone every day | 0.07 | 1.24 | 0.21 | |||
Mobile phone addiction | 0.34*** | 7.42 | < 0.001 | |||
Model 2: Mediator variable model (criterion: poor sleep quality) | ||||||
R | R2 | F | P | β | t | P |
0.36 | 0.13 | 9.51 | < 0.001 |  | ||
Constant | −0.41 | −1.46 | 0.14 | |||
Only child | 0.14 | 1.52 | 0.12 | |||
Family income per month | 0.08 | 1.72 | 0.08 | |||
Family area | −0.11 | −0.94 | 0.34 | |||
Time spent on the phone every day | 0.04 | 0.62 | 0.53 | |||
Mobile phone addiction | 0.22*** | 4.81 | < 0.001 | |||
Peer relationships | −0.21*** | −4.75 | < 0.001 | |||
Mobile phone addiction x Peer relationships | 0.04 | 1.08 | 0.27 | |||
Model 3: Dependent variable model (criterion: depression) | ||||||
R | R2 | F | P | β | t | P |
0.71 | 0.50 | 50.81 | < 0.001 |  | ||
Constant | −0.49* | −2.31 | 0.02 | |||
Only child | 0.17* | 2.32 | 0.02 | |||
Family income per month | −0.02 | −0.65 | 0.51 | |||
Family area | 0.14* | 1.58 | 0.11 | |||
Time spent on the phone every day | 0.05 | 1.03 | 0.30 | |||
Mobile phone addiction | 0.20*** | 5.44 | < 0.001 | |||
Poor sleep quality | 0.49*** | 13.74 | < 0.001 | |||
Peer relationships | −0.21*** | −5.96 | < 0.001 | |||
Poor sleep quality x Peer relationships | −0.11** | −3.11 | 0.002 | |||
Mobile phone addiction x Peer relationships | −0.03 | −1.15 | 0.24 |