Table 2.
Pearson correlations between problematic smartphone use, depressive symptoms, and suicidal ideation at T1, T2, T3, and T4
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.PSU T1 | 1 | ||||||||||
| 2.PSU T2 | 0.59*** | 1 | |||||||||
| 3.PSU T3 | 0.68*** | 0.70*** | 1 | ||||||||
| 4.PSU T4 | 0.63*** | 0.63*** | 0.72*** | 1 | |||||||
| 5.DS T1 | 0.45*** | 0.32*** | 0.35*** | 0.40*** | 1 | ||||||
| 6.DS T2 | 0.32*** | 0.53*** | 0.28** | 0.45*** | 0.63*** | 1 | |||||
| 7.DS T3 | 0.36*** | 0.32** | 0.42*** | 0.39*** | 0.47*** | 0.52*** | 1 | ||||
| 8.DS T4 | 0.33*** | 0.25*** | 0.45*** | 0.46*** | 0.58*** | 0.55*** | 0.53*** | 1 | |||
| 9.SI T1 | 0.34*** | 0.27*** | 0.35*** | 0.32** | 0.65*** | 0.49*** | 0.39*** | 0.40*** | 1 | ||
| 10.SI T2 | 0.28*** | 0.39*** | 0.28*** | 0.37*** | 0.48*** | 0.68*** | 0.48*** | 0.42*** | 0.60*** | 1 | |
| 11.SI T3 | 0.26*** | 0.30*** | 0.33*** | 0.34*** | 0.49*** | 0.49*** | 0.52*** | 0.36*** | 0.58*** | 0.67*** | 1 |
| 12.SI T4 | 0.20** | 0.23** | 0.27*** | 0.32*** | 0.46*** | 0.46*** | 0.45*** | 0.56*** | 0.50*** | 0.51*** | 0.58*** |
Note: *p < .05; **p < .01; ***p < .001