Table 5.
Impact of wearing eyeglasses on endline standardized mathematics score (LATE).
| Dep. Var.: Endline Standardized Math Score | Pooled Sample | Gansu | Shaanxi | |||
|---|---|---|---|---|---|---|
| Unadjusted | Adjusted | Unadjusted | Adjusted | Unadjusted | Adjusted | |
| (1) | (2) | (3) | (4) | (5) | (6) | |
| Treatment (1 = yes) | 0.861 *** | 0.918 *** | 1.536 ** | 1.770 *** | 0.355 | 0.476 |
| (0.323) | (0.344) | (0.614) | (0.686) | (0.369) | (0.394) | |
| Baseline standardized math score controlled | Yes | Yes | Yes | Yes | Yes | Yes |
| Student, family, teacher, characteristics controlled | - | Yes | - | Yes | - | Yes |
| R-square | 0.258 | 0.258 | −0.108 | −0.123 | 0.393 | 0.367 |
| Cragg–Donald Wald F statistic of the first stage | 45.747 | 46.197 | 23.692 | 21.571 | 23.282 | 23.783 |
| Number of observations | 2087 | 2087 | 762 | 762 | 1325 | 1325 |
Notes: Full sample is analyzed. Standardized coefficients are reported. Standard errors clustered at the school level are reported in parentheses. ** p < 0.05, *** p < 0.01.