An individual’s attachment style is their way to relate to other people. According to attachment theory, developed by a psychologist and psychiatrist in the 1950s, attachment style is developed in early childhood in response to their relationship with their caregiver(s). Our adult attachment style has been shown to mirror the early relationship we had with that caregiver. Attachment styles include the way we emotionally respond to others. The four adult attachment styles are: secure, anxious, avoidant, and fearful-avoidant (disorganized).