Klein Velderman, M., Bakermans-Kranenburg, M. J., Juffer, F., & van IJzendoorn, M. H. (2006). Effects of attachment-based interventions on maternal sensitivity and infant attachment: Differential susceptibility of highly reactive infants. Journal of Family Psychology, 20(2), 266-274.
Peer Reviewed
| Design | Attrition | Baseline equivalence | Confounding factors? | Valid, reliable measures? |
|---|---|---|---|---|
| Randomized controlled trial | Low |
Not assessed for randomized controlled trials with low attrition |
No |
Yes, details reported below for findings on valid, reliable outcomes that otherwise rate at least moderate |
Notes from the review of this manuscript
The manuscript reports findings separately for a subset of the intervention group that was randomly assigned to receive video feedback and brochures to enhance sensitive parenting (referred to in the manuscript as the “VIPP group”) and another subset of the intervention group that in addition to the video feedback and brochures was randomly assigned to participate in discussions about the mother’s childhood attachment experiences in relation to their current parenting style (referred to in the manuscript as the “VIPP-R group”). The developers indicated the VIPP and VIPP-R groups received the same intervention. Therefore, this review focused on the findings for the intervention group that received the VIPP home visiting model (which combines the VIPP and VIPP-R subsets). Information about maternal sensitivity findings at 11 and 13 months old was based on correspondence with the authors.
| Outcome Measure | Timing of Follow-Up | Rating | Direction of Effect | Effect Size (Absolute Value) | Stastical Significance | Sample Size | Sample Description |
|---|---|---|---|---|---|---|---|
| Children's attachment security | 13 months old | High | 0.10 | Not statistically significant, p = 0.67 | 81 infants | VIPP vs. comparison, Netherlands, full sample | |
| Children's attachment security: Secure attachment | 13 months old | High | 0.22 | Not statistically significant, p= 0.17 | 81 infants | VIPP vs. comparison, Netherlands, full sample |
| Outcome Measure | Timing of Follow-Up | Rating | Direction of Effect | Effect Size (Absolute Value) | Stastical Significance | Sample Size | Sample Description |
|---|---|---|---|---|---|---|---|
| Ainsworth Maternal Sensitivity Scale | 11 months old | High | 0.53 | Statistically significant, p= 0.03 | 81 mothers | VIPP vs. comparison, Netherlands, full sample | |
| Ainsworth Maternal Sensitivity Scale | 13 months old | High | 0.46 | Not statistically significant, p= 0.054 | 81 mothers | VIPP vs. comparison, Netherlands, full sample |
This study included participants from the following locations:
- State not reported or international
Study participants included first-time mothers with 4-month-old children; these participants were identified through administrative records in one city and five villages in the Netherlands. The study recruited women with low educational levels, defined as more than eight but fewer than 14 years of schooling. Using the Adult Attachment Interview to screen mothers, the study team selected mothers classified as having an insecure attachment style for the study. The study randomly assigned mothers to one of three groups: the Video-feedback Intervention to promote Positive Parenting (VIPP) intervention group (28 mothers), the VIPP-R (VIPP with a representational focus) intervention group (26 mothers), or the business-as-usual comparison group (27 mothers). The full intervention sample included both VIPP and VIPP-R. The analytic sample size included 54 participants in the intervention group and 27 participants in the comparison group. Maternal sensitivity was measured when the infants were 11 months old (about one month after the intervention ended) and again when the infants were about 13 months old (about three months after the intervention ended). At enrollment, the mean age of mothers was 27.8.
The study took place in West Netherlands.
Note: Navigate to the model page for more information about the home visiting model. See the source manuscript for more information about how the model was implemented in this study.
Families assigned to the comparison condition were not eligible to receive intervention services through VIPP. The sole purpose of home visits during the study was for data collection purposes.
There were no subgroups reported in this manuscript.
The study was supported by a Pioneer Award of the Netherlands Organization for Scientific Research NWO (Grant PGS 59-256) and the NWO/SPINOZA Prize.