A Prospective Longitudinal Study of Mother–Child Attachment and Externalizing Trajectories in Boys and Girls

In clinically referred children, boys and those with disorganized mother–child attachments tend to show the most maladaptive externalizing trajectories; however, additional research is necessary to test whether these findings hold in a community sample. Therefore, 235 community children (106 boys) were followed from ages 6 to 15 years across six time points. Multiple-group linear growth curves with mother–child attachment as a time-invariant covariate were fit to the data to explore externalizing trajectories for boys and girls. Results showed that boys had higher initial externalizing levels than girls, and children generally experienced a decline in symptoms over time. No significant trajectory differences were found for girls, and boys with different attachment classifications did not differ on their initial externalizing levels; however, boys with avoidant attachments (with resistant attachments trending) experienced a steeper decline in externalizing symptoms longitudinally. Implications for intervention and prevention are discussed.