Applied multidimensional scaling to similarity data to produce a model of Attachment Q-Set (AQS) items as points in a 3-dimensional space. Represented criterion sorts, individual Q-sorts, and empirical correlates as vectors, interpreting each according to the vector's contributions from the three global dimensions. Tested the model's validity and…

Assessed maternal sensitivity and infants' attachment behavior to test validity of a system of classifying attachment relationships at home. Subjects were 47 mothers of preterm and 42 mothers of full-term infants. Results reaffirm Ainsworth's conceptualization of distinct attachment relationships. (HTH)

Describes the core constructs of attachment theory, namely, the attachment system and secure-base behavior. Discusses contextual factors thought to be crucial in development of individual differences in attachment, especially maternal sensitivity, and considers child characteristics, especially temperament, that may contribute to the attachment…

Used adaptation of Attachment Q-Set (AQS) with 24 infant-mother monkey dyads to clarify the secure-base concept. Found that infants of high-ranking monkeys scored higher than those of low-ranking ones, suggesting the origins of the secure-base phenomenon, as well as the importance of exploring infant secure-base behaviors in families of different…