Maternal sensitivity and patterns of infant-mother attachment.

48 12-month-old infants and their mothers were videotaped in the Ainsworth Strange Situation. Each infant-mother dyad was also filmed for 3 min while the mother completed a questionnaire and the infant was left to explore the room devoid of toys, a situation in which maternal compliance with the request to complete the questionnaire was expected to compete with attentional demands made on her by the infant. Infant-mother attachment was classified as secure, anxious-avoidant, or anxious-resistant on the basis of behavior in the Strange Situation. Assessment of maternal sensitivity during the questionnaire situation included behaviors classified as reflecting appropriate, insufficient, and intrusive responses to infant cues. 3 summary measures of maternal sensitivity, each of which distinguished between mothers of securely and anxiously attached infants in 1-way analysis of variance tests, were entered into a discriminant function analysis. Using the discriminant function coefficients for combining the maternal sensitivity scores, 94% of the infants were correctly classified as securely or anxiously attached on the basis of their mothers' behavior in the questionnaire situation.