Table 3.
Summary Statistics of Answers to the Age-Range Elicitation Form
| Brief description of the MSD item | Panel A | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Scenario 1 | Scenario 2 | |||||||||||
| Human capital at birth is “high” Investment is “high” | Human capital at birth is “low” Investment is “high” | |||||||||||
| Youngest age | Oldest age | Youngest age | Oldest age | |||||||||
| Mean | Median | SD | Mean | Median | SD | Mean | Median | SD | Mean | Median | SD | |
| Speaks partial sentence | 13.96 (0.20) | 12.00 (0.00) | 5.72 (1.49) | 25.37 (0.34) | 24.00 (0.00) | 9.78 (2.10) | 17.98 (0.28) | 18.00 (0.42) | 7.96 (1.97) | 30.03 (0.37) | 30.00 (0.76) | 10.49 (2.04) |
| Counts three objects correctly | 23.10 (0.32) | 24.00 (0.25) | 9.18 (1.96) | 34.14 (0.35) | 36.00 (0.50) | 9.97 (1.88) | 25.85 (0.35) | 24.00 (0.25) | 10.10 (2.07) | 36.35 (0.34) | 36.00 (0.25) | 9.77 (1.89) |
| Knows own age and sex | 19.99 (0.29) | 18.00 (0.50) | 8.19 (1.80) | 31.07 (0.34) | 30.00 (1.01) | 9.62 (1.87) | 23.28 (0.32) | 24.00 (0.50) | 9.20 (1.94) | 34.02 (0.34) | 36.00 (0.50) | 9.66 (1.85) |
| Says first and last names together | 23.62 (0.32 | 24.00 (0.00) | 9.21 (1.94) | 34.33 (0.33) | 36.00 (0.50) | 9.41 (1.85) | 26.26 (0.34) | 24.00 (0.50) | 9.75 (2.01) | 36.51 (0.32) | 36.00 (0.25) | 9.12 (1.83) |
| Brief description of the MSD item | Panel B | |||||||||||
| Scenario 3 | Scenario 4 | |||||||||||
| Human capital at birth is “high” Investment is “low” | Human capital at birth is “low” Investment is “low” | |||||||||||
| Youngest age | Oldest age | Youngest age | Oldest age | |||||||||
| Mean | Median | SD | Mean | Median | SD | Mean | Median | SD | Mean | Median | SD | |
| Speaks partial sentence | 19.07 (0.29) | 18.00 (0.25) | 8.33 (2.07) | 30.79 (0.35) | 30.00 (0.76) | 10.14 (2.00) | 22.78 (0.34) | 24.00 (0.50) | 9.65 (2.15) | 34.32 (0.36) | 36.00 (0.50) | 10.41 (1.97) |
| Counts three objects correctly | 27.55 (0.36) | 24.00 (0.50) | 10.24 (2.04) | 37.73 (0.31) | 36.00 (0.50) | 8.89 (1.78) | 30.44 (0.38) | 30.00 (0.92) | 10.83 (2.13) | 40.24 (0.30) | 42.00 (1.01) | 8.64 (1.94) |
| Knows own age and sex | 25.35 (0.33) | 24.00 (0.00) | 9.42 (1.97) | 36.17 (0.31) | 36.00 (0.00) | 8.98 (1.79) | 28.84 (0.35) | 30.00 (0.50) | 10.17 (2.03) | 39.06 (0.31) | 42.00 (0.50) | 8.91 (1.89) |
| Says first and last names together | 28.01 (0.34) | 27.00 (0.50) | 9.87 (1.95) | 38.32 (0.30) | 36.00 (0.50) | 8.61 (1.83) | 30.81 (0.36) | 30.00 (0.50) | 10.24 (2.08) | 40.72 (0.29) | 42.00 (0.67) | 8.33 (1.96) |
Note: This table shows the youngest and oldest age for each MSD item and scenario. See Figure 1 for a full description of the MSD items and scenarios. We order MSD items according to their difficulty, from easiest (“speaks partial sentence”) to hardest (“says first and last name together”). Reported ages decrease with human capital at birth and investments. Standard errors in parentheses.