Table 1.
Descriptives and Zero-Order Correlations Among Study Variables
| 1. | 2. | 3. | 4. | 5. | 6. | 7. | 8. | 9. | 10. | 11. | 12. | 13. | 14. | 15. | 16. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. T1 internalizing | -- | |||||||||||||||
| 2. T2 internalizing | .58** | -- | ||||||||||||||
| 3. T3 internalizing | .52** | .69** | -- | |||||||||||||
| 4. T4 internalizing | .39** | .51** | .67** | -- | ||||||||||||
| 5. T1 externalizing | .28** | .18 | .13 | .14 | -- | |||||||||||
| 6. T2 externalizing | .33** | .41** | .27** | .34** | .59** | -- | ||||||||||
| 7. T3 externalizing | .18 | .29** | .42** | .41** | .42** | .64** | -- | |||||||||
| 8. T4 externalizing | .18 | .20 | .25* | .44** | .42** | .59** | .73** | -- | ||||||||
| 9. T1 competence | .19* | .12 | .03 | −.01 | −.10 | −.15 | −.23* | −.28 | -- | |||||||
| 10. T2 competence | −.04 | .05 | .00 | −.04 | −.16 | −.27** | −.32** | −.33** | .61** | -- | ||||||
| 11. T3 competence | .08 | .06 | −.10 | −.13 | −.09 | −.19 | −.34** | −.28** | .57** | .59** | -- | |||||
| 12. T4 competence | −.09 | −.11 | −.23* | −.38** | −.32** | −.35** | −.47** | −.59** | .49** | .55** | .48** | -- | ||||
| 13. T2 sleep problems | .16 | .24* | .33** | .27** | .18 | .28** | .32** | .30** | −.07 | −.05 | −.02 | −.16 | -- | |||
| 14. T2 naps | −.14 | −.15 | −.22* | −.26* | −.08 | −.19 | −.13 | −.22* | −.05 | .07 | .05 | .22* | −.11 | -- | ||
| 15. T1 child age | .39** | .16 | .12 | .10 | .08 | −.06 | −.16 | −.09 | .54** | .29** | .34** | .17 | .02 | −.34** | -- | |
| 16. Child sex | −.05 | −.12 | .00 | .04 | .02 | .11 | .14 | .16 | −.05 | −.20* | −.16 | −.20* | .05 | −.15 | −.04 | -- |
| Mean | 0.49 | 0.53 | 0.49 | 0.49 | 0.59 | 0.62 | 0.64 | 0.64 | 16.30 | 17.37 | 17.41 | 17.78 | 0.26 | 0.84 | 16.78 | 0.58 |
| (SD) | 0.21 | 0.23 | 0.22 | 0.30 | 0.31 | 0.30 | 0.35 | 0.36 | 3.56 | 2.93 | 2.93 | 2.95 | 0.44 | 0.36 | 4.55 | 0.50 |
Note. T1 = baseline, T2 = 3 months post-baseline, T3 = 6 months post-baseline, T4 = 9 months post-baseline. Internalizing and externalizing = Infant-Toddler Social and Emotional Assessment raw domain scores. Competence = Brief Infant-Toddler Social and Emotional Assessment raw total scores. Sleep problems dummy coded 0 = no parent-perceived sleep problem, 1 = a small or very serious parent-perceived sleep problem. Naps dummy coded 0 = does not nap daily, 1 = naps daily. Child age = months. Child sex dummy coded 0 = female, 1 = male.
*
p < .05
**
p < .01.