Attachment styles

Attachment styles describe the patterns of emotional connection an infant forms with a primary caregiver. The framework grew out of John Bowlby's attachment theory — the idea that infants are biologically driven to seek proximity to a caregiver — and was made testable by Mary Ainsworth's Strange Situation procedure, which observes how a child responds to a caregiver leaving and returning in an unfamiliar room.

Ainsworth identified three styles. Secure attachment (the majority of infants): the child uses the caregiver as a secure base to explore, shows distress at separation, and is readily comforted on reunion; it is associated with consistent, responsive caregiving. Avoidant attachment: the child shows little distress at separation and avoids or ignores the caregiver on return, a pattern linked to unresponsive or dismissive caregiving. Ambivalent (anxious-resistant) attachment: the child is clingy, extremely distressed by separation, yet resists comfort on reunion, a pattern linked to inconsistent caregiving.

Researchers Main and Solomon later added a fourth style, disorganized attachment, in which the child shows contradictory, dazed, or fearful behavior with no coherent strategy — often associated with frightening, abusive, or severely erratic caregiving. Early attachment patterns are studied as predictors of later social and emotional functioning, including adult relationship styles, though development remains open to change.

The MCAT's psychology and sociology section tests attachment alongside aggression and altruism as elements of social interaction, and AP Psychology tests it within social-emotional development — expect questions matching Strange Situation behaviors to their styles and caregiving patterns. Achievable's MCAT and AP Psychology courses cover attachment styles in those chapters.