Table 3.
Instrumental variable method: The impact of internet use on sport participation (SP).
| Variable | SP (IVProbit) | |
|---|---|---|
| (1) | (2) | |
| Internet use | 2.089*** (0.433) |
0.874*** (0.253) |
| Control variable | Control | Control |
| Constant | −3.175*** (0.519) |
−3.701*** (0.454) |
| Observations | 10,688 | 10,688 |
| Wald test | 23.51 | 7.40 |
| Prob > Chi2 | 0.000 | 0.007 |
| One stage regression results | Internet use | |
| (1) | (2) | |
| Do you have a cell phone for your own use only? | 0.121*** (0.012) |
|
| Number of internet-connected devices | 0.063*** (0.004) |
|
| Control variable | Control | Control |
| F-value in one stage | 768.54 | 786.75 |
Regression coefficients are reported in the table, standard error is in parentheses.
***
p < 0.01.