Table 1.
Growth Model Parameters: Change Over Time for PMTO and No Treatment Groups
| Change Index | PMTO | NTC | Zdifference | |
|---|---|---|---|---|
| Parenting Practices | ||||
| Positive Parenting (mom & stepdad) | Mean intercept | 1.50 (p < .001) | 1.47 (p< .001) | −0.53 |
| Mean Slope | 0.03 (p < .01) | 0.01 (n.s.) | −1.79 | |
| Variance Intercept | 0.13 (p < .01) | 0.13 (p < .10) | 0.01 | |
| Variance Slope | 0.02 (p < .10) | 0.02 (p < .10) | 0.02 | |
| Coercive Parenting (mom & stepdad) | Mean Intercept | 0.290 (p < 001) | 0.241 (p < .001) | −0.82 |
| Mean Slope | −0.019 (p < .10) | 0.042 (p < .05) | 2.32 | |
| Variance Intercept | 0.001 (p < .05) | 0.004 (p < .01) | 1.96 | |
| Variance slope | 0.001 (n.s.) | 0.001 (p < .10) | 0.98 | |
| Marital Domain | ||||
| Marital Relationship Processes (mom & stepdad) | Mean Intercept | 3.69 (p < .001) | 3.63 (p < .001) | −0.30 |
| Mean Slope | 0.74 (p < .01) | −0.15 (n.s.) | −2.60 | |
| Variance Intercept | 0.27 (p < .001) | 0.17 (p < .05) | −0.90 | |
| Variance Slope | 0.07 (p < .05) | 0.02 (n.s.) | −0.50 | |
| Marital Satisfaction (mom) | Mean Intercept | 100.7 (p < .001) | 92.8 (p < .001) | −1.98 |
| Mean Slope | − 2.7 (n.s.) | −9.6 (p < .05) | −1.97 | |
| Variance Intercept | 125.7 (p < .001) | 133.9 (p < .001) | 0.14 | |
| Variance Slope | 3.5 (p < .05) | 1.4 (n.s.) | −0.45 | |
| Marital Satisfaction (stepdad) | Mean Intercept | 105.0 (p < .001) | 99.8 (p < .001) | −1.37 |
| Mean slope | −2.0 (p < .01) | 0.1 (n.s.) | 1.87 | |
| Variance Intercept | 86.5 (p < .001) | 89.7 (p < .001) | 0.10 | |
| Variance Slope | 1.0 (n.s.) | 2.2 (n.s.) | 0.51 | |
| Child Externalizing Problems | ||||
| Child Behavior Checklist (mom) | Mean Intercept | 43.2 (p < .001) | 49.4 (p < .001) | 0.78 |
| Mean Slope | −1.6 (n.s.) | −0.4 (n.s.) | 0.75 | |
| Variance Intercept | 54.6 (p< .001) | 52.0 (p < .001) | −0.14 | |
| Variance Slope | 1.7 (p < .05) | 0.9 (n.s.) | −0.48 | |
| Child Behavior Checklist (stepdad) | Mean Intercept | 56.1 (p < .001) | 53.5 (p < .001) | −0.77 |
| Mean Slope | −1.5 (p < .05) | −1.0 (n.s.) | −0.55 | |
| Variance Intercept | 71.4 (p < .001) | 75.5 (p < .001) | 0.61 | |
| Variance Slope | 1.2 (n.s.) | 1.1 (n.s.) | −0.02 | |
| Child Behavior Checklist (teacher) | Mean Intercept | 51.4 (p < .001) | 43.7 (p < .001) | −0.60 |
| Mean Slope | 5.0 (n.s.) | 19.4 (p < .001) | 2.79 | |
| Variance Intercept | 63.9 (p < .001) | 81.8 (p < .001) | 2.03 | |
| Variance Slope | 1.3 (n.s.) | 3.4 (n.s.) | 0.73 | |
Note: All parenting practicesand child externalizing growth models includedchild age and child sex as covariates, and all marital domain growth models included time since remarriage as a covariate.