Table 1.
Means, Standard Deviations, and Intercorrelations among Study Variables
| M (SD) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Child Outcomes (18 months) | ||||||||||||||||||
| 1. Emotional Reactivity | 1.60 (1.30) | - | ||||||||||||||||
| 2. Anger | 3.39 (.63) | .33** | - | |||||||||||||||
| 3. Fearfulness | 3.74 (.84) | .23** | .27** | - | ||||||||||||||
| 4. Difficultness | 21.80 (5.43) | .47** | .55** | .24** | - | |||||||||||||
| Rearing Environments (Parenting) | ||||||||||||||||||
| 5. AM Ovrreactivity (18 months) | 1.86 (.59) | .16** | .25** | −.02 | .26** | - | ||||||||||||
| 6. AF Overreactivity (18 months) | 1.89 (.59) | .08† | .24** | .08† | .21** | .34** | - | |||||||||||
| 7. AM Overreactivity (27 months) | 2.06 (.62) | .21* | .27** | .02 | .25** | .72** | .27** | - | ||||||||||
| 8. AF Overreactivity (27 months) | 2.06 (.61) | .12* | .25** | .05 | .24** | .27** | .69** | .27** | - | |||||||||
| 9. AM Hostility (27 months) | 9.04 (2.70) | .19** | .23** | .02 | .29** | .51** | .18** | .66** | .26** | - | ||||||||
| 10. AF Hostility (27 months) | 8.91 (2.60) | .21** | .29** | .02 | .30** | .30** | .51** | .31** | .64** | .33** | - | |||||||
| Indices of Heritable Risk | ||||||||||||||||||
| 11. BM Externalizing Problems | 0 (1) | −.02 | −.02 | −.01 | −.08† | −.05 | −.02 | −.07 | .05 | −.03 | .04 | - | ||||||
| 12. BM Internalizing Problems | 0 (1) | .05 | −.01 | −.06 | .03 | −.06 | −.03 | −.02 | −.04 | −.01 | −.05 | .30** | - | |||||
| 13. BM Substance Use | 0 (1) | −.03 | .01 | −.05 | −.03 | −.06 | −.03 | −.05 | 0 | 0 | −.04 | .55** | .38** | - | ||||
| 14. BF Externalizing Problems | 0 (1) | −.02 | −.07 | −.08 | −.04 | .03 | .02 | .05 | .05 | .02 | .02 | .32** | .13** | .24** | - | |||
| 15. BF Internalizing Problems | 0 (1) | .02 | −.03 | −.03 | −.03 | −.03 | −.02 | 0 | 0 | −.03 | 0 | 0 | .12* | .09* | .21** | - | ||
| 16. BF Substance Use | 0 (1) | −.02 | −.08 | −.07 | −.02 | .03 | .01 | .03 | 0 | 0 | .02 | .07 | .07 | .21** | .61** | .22** | - | |
| BM Prenatal Illicit Drug Use | ||||||||||||||||||
| 17. Summative Frequency of All Illicit Drugs | .09 (.21) | −.07 | −.08† | .03 | −.14** | −.09† | −.04 | −.05 | −.06 | −.04 | −.08 | .25** | .21** | .36** | .15** | .05 | .17* | - |
Note. AM = adoptive mother; AF = adoptive father; BM = birth mother; BF = birth father.
†
p < .08.
*
p < .05.
**
p < .01.