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Means and variances of cognitive ability for the entire sample and the three educational subgroups
| Mean | Variance | ||
|---|---|---|---|
| Entire sample (n = 6,569) | All | 537.54 | 75.80 |
| ♂ | 537.94 | ||
| ♀ | 536.99 | ||
| Low education (n = 2,324) | All | 534.70 | 83.04 |
| ♂ | 535.03 | ||
| ♀ | 534.15 | ||
| Middle education (n = 2,754) | All | 537.75 | 66.94 |
| ♂ | 538.26 | ||
| ♀ | 537.38 | ||
| High education (n = 1,419) | All | 541.57 | 50.54 |
| ♂ | 541.83 | ||
| ♀ | 540.95 | ||
