Highlights three longitudinal studies examining the hypothesis that attachment security during infancy influences individual differences and adult representations of attachment. Notes that attachment security was significantly stable in two studies, with discontinuity in all three studies related to negative life events and circumstances.…

Twenty-nine years ago Minnesota Longitudinal Study of Parents and Children (MLSPC) was launched at the Institute of Child Development, University of Minnesota. It was one of the first prospective longitudinal studies of how parent-infant attachment develops, how it changes over time, and how the quality of attachment in infancy influences…

A longitudinal study explored the effects of different aspects of child care on infants' attachment security. Child care variables examined included age of entry; the quality, amount, stability, and type of care; and mother's sensitivity to the child's needs. When the validity of the Strange Situation was tested by comparing children with low and…