Parental History of Childhood Maltreatment and Offspring Attachment Insecurity and Disorganization: Two Meta-Analyses

Area of Science:

• Psychology
• Developmental Psychology
• Attachment Theory

Background:

• Parental childhood maltreatment (CM) is a known risk factor for insecure and disorganized attachment in offspring.
• The precise impact of intergenerational trauma on child attachment remains incompletely understood.
• Existing research suggests a potential link, but the strength and nature of this connection require further clarification.

Purpose of the Study:

• To synthesize existing literature on the association between parental history of CM and offspring attachment insecurity and disorganization.
• To quantify the effect size of this intergenerational transmission using meta-analysis.
• To explore potential moderating factors and publication bias in the studied relationship.

Main Methods:

• Conducted two three-level random effects meta-analyses.
• Included 25 studies with 2,592 participants and 61 effect sizes.
• Analyzed offspring attachment insecurity and disorganization, with offspring ages ranging from 12 to 79 months.

Main Results:

• A weak but statistically significant association was found between parental CM history and child attachment insecurity (r=.06).
• No significant association was detected between parental CM history and child attachment disorganization (r=.03).
• Evidence of publication bias was observed in the meta-analysis for attachment disorganization, with weaker effects in more recent studies.

Conclusions:

• Parental self-reported history of CM does not appear to be a decisive factor in child attachment insecurity or disorganization.
• The findings suggest a more nuanced understanding of the intergenerational transmission of childhood trauma is needed.
• Further research employing objective measures of parental CM exposure is recommended to clarify intergenerational effects on child attachment.