PURPOSE: To investigate the role of maternal sensitivity and interactive behavior in sibling attachment non-/concordance. RESULTS:1) Global measures of sensitivity suggest that mothers of concordant-secure and non-concordant infants demonstrate a similar degree of sensitivity towards each child. 2) Mothers with non-concordant infants interact more similarly with each child on domains of maternal sensitivity, compared to mothers whose infants are concordant.
CONCLUSION: The quality of the attachment relationship in families with non-concordant mother-infant relationships –in contrast to families with concordant dyads –does not appear to be systematically affected by maternal sensitivity as typically assessed. More detailed assessment of the interactions suggest that mothers with non-concordant relationships with their infants may be unable to adapt their behaviour to suit the unique needs of each child.