Where Attachment Theory Comes From
Attachment theory was developed in the mid-20th century by British psychiatrist John Bowlby. Working with war orphans and institutionalized children, he proposed that human infants are biologically primed to form safe bonds with specific caregivers — a foundational claim that launched the entire field.
Bowlby's collaborator Mary Ainsworth designed the “Strange Situation” procedure in the 1970s and classified infant attachment into three categories: secure, anxious-ambivalent, and avoidant. Developmental psychologist Mary Main later identified a fourth — disorganized — completing the four-category framework now standard in the field.
In the late 1980s, psychologists Shaver and Hazan proposed that these childhood categories also apply to adult romantic relationships, and the field of adult attachment exploded. When people say “attachment style” today, they often mean this adult version.
The Four Attachment Styles
Attachment style falls into four broad parent categories. This site further splits each into two subtypes, for eight in total.
Secure
Generally experiences relationships as safe. Comfortable both seeking support and spending time alone.
Secure / Benevolent subtypes
Anxious / Preoccupied
A strong pull toward connection paired with fear of abandonment. Sensitive to partner cues and prone to emotional swings.
Anxious / Preoccupied subtypes
Avoidant / Dismissive
Prioritizes autonomy and independence over closeness. Maintains a sense of safety through emotional distance.
Avoidant / Detached subtypes
Disorganized / Fearful-Avoidant
Wanting closeness and fearing it at the same time. Often has trauma or fear in the background.
Disorganized / Fearful subtypes
No attachment style is “right” — each developed adaptively in the environment it grew up in. Secure attachment is associated with better outcomes on average, but every style carries strengths as well as challenges.
How Attachment Style Shows Up in Adult Relationships
Adult attachment patterns are especially visible in romantic relationships. Research consistently shows:
- Partner selection: People tend to choose partners who unconsciously replicate the relational patterns of their early life.
- Conflict response: Anxious types pursue and protest; avoidant types withdraw and shut down. The pairing creates classic pursue-withdraw cycles.
- Emotion regulation: Secure types can express and regulate emotion. Anxious types are flooded; avoidant types disconnect.
- Relationship satisfaction: Secure pairings show the highest satisfaction on average, but two insecure partners who understand each other can also build stable relationships.
Can Attachment Style Change?
The most hopeful answer first: yes. Attachment style isn't a fixed personality trait but an internal working model that can be revised through new relational experiences.
Research describes a phenomenon called earned security: people who grew up with insecure attachment moving toward security through later corrective experiences — with partners, friends, or therapists.
Change isn't fast. Rewriting patterns that took years to form takes years to revise. But the fact that change is possible at all is a meaningful source of hope.
Finding Out Your Own Style
Knowing your attachment style is a starting point for understanding your relationship patterns. The free 20-question quiz on this site (about 3 minutes) identifies which of 8 detailed types fits you best. It's not a clinical assessment — it's a tool for self-reflection.