The current intervention study aimed at breaking the potential intergenerational cycle of insecure attachment. The authors randomly assigned 81 first-time mothers to one of two intervention groups or a control group. The interventions involved four home visits when the infants were between 7 and 10 months old. The first intervention, VIPP, consisted of video-feedback and brochures to enhance sensitive parenting. The second intervention, VIPP-R, involved additional discussions of mothers' childhood attachment experiences in relation to their current caregiving. After the intervention, intervention mothers were more sensitive than control mothers. The interventions were most effective for highly reactive children and their mothers, providing experimental support for Belsky's (1997) hypothesis of highly reactive versus less reactive children's evolutionary based differential susceptibility to rearing influences.
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