Table 1.
Summary Statistics: Wisconsin Longitudinal Study; Comparing Biological and Adopted Children
| A. Child-Level Descnptives (Means and Standard Deviations, SD) | |||
|---|---|---|---|
| All | Biological | Adopted | |
| % Graduates | 0.66 | 0.66 | 0.67 |
| SD | 0.47 | 0.47 | 0.47 |
| Parent Birthyear | 1939.03 | 1939.01 | 1939.55 |
| SD | 3.94 | 3.95 | 3.59 |
| Parent PGS | −0.01 | −0.01 | 0.13 |
| SD | 0.99 | 0.99 | 0.95 |
| Parent Edu | 13.61 | 13.57 | 14.39 |
| SD | 2.31 | 2.29 | 2.58 |
| Child Birthyear | 66.86 | 66.71 | 70.62 |
| SD | 6.46 | 6.40 | 6.87 |
| Child Edu | 14.40 | 14.43 | 13.74 |
| SD | 2.42 | 2.41 | 2.65 |
| N | 21794 | 20939 | 855 |
| B. Parent-level Descriptives (Means and Standard Deviations, SD) | |||
|---|---|---|---|
| All | No Adopted | Adopted | |
| % Graduates | 0.65 | 0.65 | 0.67 |
| SD | 0.48 | 0.48 | 0.47 |
| Parent Birthyear | 1939.41 | 1939.4 | 1939.6 |
| SD | 4.11 | 4.14 | 3.71 |
| Parent PGS | 0 | −0.01 | 0.11 |
| SD | 1 | 1 | 0.96 |
| Parent Education | 13.75 | 13.7 | 14.35 |
| SD | 2.36 | 2.33 | 2.59 |
| N | 7193 | 6648 | 545 |