Table 1.
Analysis of Covariance of Family-of-Origin Background Characteristics at Age 18 (1957)
| IDD | Comparison group | Parent Status F | Gender F | |||||
|---|---|---|---|---|---|---|---|---|
| Men | Women | Total | Men | Women | Total | |||
| N=112 | N=108 | N=220 | N=533 | N=509 | N=1042 | |||
| Father’s years of Education | 10.2 (3.6) | 10.1 (3.5) | 10.2 (3.5) | 9.9 (3.4) | 9.7 (3.3) | 9.8 (3.3) | 3.72 | 1.06 |
| Father’s occupational SES | 35.9 (24.9) | 35.9 (24.0) | 35.9 (24.4) | 36.1 (23.9) | 33.5 (23.0) | 34.8 (23.5) | 1.38 | 2.63 |
| Family income | 5,200 | 6,200 | 5,700 | 5,600 | 5,400 | 5,500 | 0.01 | 0.85 |
| Community population size | 47295 (68730) | 58231 (76146) | 52663 (72506) | 44050 (65389) | 40214 (63583) | 42176 (64511) | 4.48* | 0.07 |
| N of siblings | 3.8 (2.3) | 4.1 (2.2) | 3.9 (2.3) | 4.2 (2.1) | 4.1 (2.2) | 4.1 (2.2) | 1.81 | 1.48 |
| IQ | 105.5 (14.7) | 100.2 (15.5) | 102.9 (15.3) | 104.2 (14.8) | 103.0 (14.2) | 103.6 (14.5) | 0.00 | 5.80* |
Note: The covariate was the age of the respondent. Means are presented with SD in parentheses.
Means for dichotomous variables are proportions. The median incomes are reported in the table, although the F-ratios were based on the natural log of mean income. For the group differences, F was presented for continuous variables and χ2 was presented for dichotomous variables.
*
p < .05.