Table 2.
Logistic regression results.
| Factor | Β | SE | Wald | df | Sig. | Exp. (β) |
|---|---|---|---|---|---|---|
| x1: Time on Instagram | 0.000 | 0.000 | 4.866 | 1 | 0.027∗ | 1.000 |
| x2: Total time on the Smartphone | 0.171 | 0.237 | 0.205 | 1 | 0.679 | 1.037 |
| x3: Total time on the Apps of interest | 0.269 | 0.115 | 0.815 | 1 | 0.604 | 1.165 |
| x4: Time on Chrome | 1.186 | 0.057 | 1.231 | 1 | 0.276 | 1.287 |
| x5: Time on WhatsApp | 0.155 | 0.368 | 0.973 | 1 | 0.693 | 1.004 |
| x6: Time on YouTube | 0.378 | 0.149 | 1.258 | 1 | 0.539 | 1.114 |
| x7: Time on Facebook | 0.282 | 0.233 | 1.116 | 1 | 0.596 | 1.058 |
| x8: Age | 0.089 | 0.032 | 7.61 | 1 | 0.006∗ | 1.093 |
| x9: Gender (female) | 0.002 | 0.021 | 0.849 | 1 | 0.965 | 1.071 |
| Constant |
-2.119 |
0.720 |
8.664 |
1 |
0.003∗ |
0.120 |
| Goodness-of-fit tests | χ2 | Df | Sig. | |||
| LR test | 4.884 | 1 | 0.027 | |||
| Hosmer and Lemeshow test |
22.785 |
8 |
0.004 |
|||
| Pseudo R2 measures | ||||||
| Count R2 | 0.025 | |||||
| Cox and Snell R2 | 0.008 | |||||
| Nagelkerke R2 |
0.011 |
|||||
| Classification Table | Predicted | |||||
| Observed | Impulsive (SSR) | Self-controlled (LLR) | Percentage correct | |||
| Impulsive (SSR) | 407 | 174 | 70.1 | |||
| Self-controlled (LLR) | 349 | 204 | 36.9 | |||
| Total | 756 | 378 | 53.9 | |||
Notes: ∗ Significant at 5 percent level.
Source: own elaboration.