Summary Statistics
| Variable | Mean (Standard Deviation) |
|---|---|
| Age in 2002 | 25 (6) |
| Education | 12.3 (1.9) |
| IQ (stanines) | 5.2 (1.8) |
| Mother’s education | 11.3 (2.5) |
| Mother’s age in 2002 | 50.5 (6.2) |
| Father’s education | 11.8 (2.9) |
| Father’s age in 2002 | 53.6 (6.7) |
Sample size: N = 388,405 male singletons.
Education is calculated for a subsample of 282,855 men aged at least 21 in 2002.