Table I.
Means, Standard Deviations, and Intercorrelations among Independent Variables (N = 812)
| Variables | M | SD | Range |
1 | 2 | 3 | 4 | 5 | |
|---|---|---|---|---|---|---|---|---|---|
| Min | Max | ||||||||
| 1. Sex of child | – | – | – | – | 1 | ||||
| 2. Child behavior | 47.23 | 9.70 | 30.00 | 78.00 | −0.05 | 1 | |||
| 3. Age of mother | 28.71 | 5.52 | 18.00 | 46.00 | −0.06 | −0.18*** | 1 | ||
| 4. Maternal depression | 8.69 | 8.04 | 0.00 | 55.00 | −0.04 | .30*** | −0.14*** | 1 | |
| 5. Home environment | 7.43 | 1.14 | 1.00 | 8.00 | −0.05 | −0.14*** | .29*** | −0.18*** | 1 |
| 6. SES | 4.10 | 2.86 | 0.09 | 26.64 | −0.02 | −0.17*** | .39*** | −0.25*** | 0.30*** |
| 7. Medically attended injuries | 0.34 | 0.65 | 0.00 | 4.00 | – | – | – | – | – |
| 8. Minor injuries | 2.14 | 4.12 | 0.00 | 72.00 | – | – | – | – | – |
| 9. Close calls | 0.78 | 1.47 | 0.00 | 9.00 | – | – | – | – | – |
Note. Maternal age reflects age of mother when the target child was born, and values were rounded down to reflect years in integers. Sex of child was coded as follows: Female = 0, Male = 1. Bivariate relations with and among injury variables are not reported because of non-normal distributions of these variables, and the correlations between any two variables are underestimated when their distributions are dissimilar (Cohen et al., 2003).
*p < .05, **p < .01, ***p < .001.