Table 4.
Descriptive statistics and univariate analysis of Family Time Index variance, by family structure and family wealth variables
| Variables* | N | Mean | Standard Deviation | Standard Error | 95% Confidence Interval for Mean | Significance (F test) | ||
| Lower Bound | Upper Bound | |||||||
| PARENTS: | Both parents | 13,459 | 0.043 | 0.985 | 0.008 | 0.026 | 0.060 | <0.001 |
| Single parent | 2,291 | -0.059 | 1.047 | 0.022 | -0.102 | -0.016 | ||
| Stepfamily | 1,551 | -0.190 | 0.979 | 0.025 | -0.239 | -0.141 | ||
| GRAND-PARENTS: | Absent | 15,008 | -0.001 | 0.989 | 0.008 | -0.017 | 0.015 | 0.703 |
| Present | 2,753 | 0.007 | 1.060 | 0.020 | -0.033 | 0.046 | ||
| CHILDREN: | No brothers and sisters | 2,455 | 0.025 | 0.991 | 0.020 | -0.015 | 0.064 | 0.002 |
| 1–2 brothers or sisters | 12,558 | 0.014 | 0.983 | 0.009 | -0.004 | 0.031 | ||
| 3 or more brothers or sisters | 1,876 | -0.069 | 1.044 | 0.024 | -0.116 | -0.023 | ||
| HOME: | All the time | 13,223 | 0.039 | 0.999 | 0.009 | 0.022 | 0.0556 | <0.001 |
| Most of the time | 2,997 | -0.057 | 0.963 | 0.018 | -0.091 | -0.022 | ||
| Half the time | 1,087 | -0.286 | 1.028 | 0.031 | -0.347 | -0.225 | ||
| FAS: | Low | 7,128 | -0.167 | 0.996 | 0.012 | -0.190 | -0.143 | <0.001 |
| Middle | 7,268 | 0.087 | 0.983 | 0.012 | 0.064 | 0.110 | ||
| High | 2,993 | 0.186 | 0.986 | 0.018 | 0.151 | 0.221 | ||
* PARENTS – parents and step-parents in household; GRAND-PARENTS – grand-parents in household; CHILDREN – number of brothers and sisters; HOME – time living in main home; FAS – Family Affluence Score.