Table 2.
Result of chain mediation analysis
| Standardized indirect effects | Indirect effect | Boot SE | Boot LLCI | Boot ULCI | Effect size |
|---|---|---|---|---|---|
| Total indirect effect | -0.18 | 0.03 | -0.23 | -0.13 | 98.97% |
| Path 1: | |||||
| PMPU → sleep quality index → TMD | -0.06 | 0.01 | -0.08 | -0.04 | 32.99% |
| Path 2: | |||||
| PMPU → cognitive flexibility → TMD | -0.10 | 0.03 | -0.15 | -0.05 | 53.54% |
| Path 3: | |||||
| PMPU → sleep quality index → cognitive flexibility → TMD | -0.02 | 0.01 | -0.04 | -0.01 | 12.44% |
| Comparison 1 | 0.04 | 0.03 | -0.02 | 0.10 | |
| Comparison 2 | -0.04 | 0.02 | -0.07 | -0.01 | |
| Comparison 3 | -0.08 | 0.03 | -0.13 | -0.02 |
Note. Three paths with indirect effect were shown in the table. Gender was coded 0 = females, 1 = males. PMPU = problematic mobile phone use; TMD = time management disposition; Boot SE = the standard error of 95% Bootstrap confidence interval of indirect effect; Boot LLCI = lower limits of 95% Bootstrap confidence interval of indirect effect; Boot ULCI = upper limits of 95% Bootstrap confidence interval of indirect effect; relative mediation effect = the ratio of indirect effect and total effect; Comparison 1: the indirect effect of path 1 minus that of path 2; Comparison 2: the indirect effect of path1 minus that of path3; Comparison 3: the indirect effect of path 2 minus that of path3