Mary Ainsworth
SchoolAttachment Theory
Lived1913 – 1999
FromUnited States
Attachment Theory

Mary Ainsworth

Measured how we learn to bond.

A developmental psychologist who, with John Bowlby, defined attachment styles and the idea of the secure base.

The secure base lets a child venture out, knowing there is somewhere safe to return.
— Mary Ainsworth

Who they were

Mary Ainsworth turned attachment from theory into observable science. Through her “Strange Situation” studies of infants and caregivers, she identified secure, anxious and avoidant patterns — early templates that echo through adult love and friendship. Her concept of the secure base explains how trusted closeness lets us explore the world with courage.

Famous books

What they left on the shelf

Their big idea

Attachment Assessment

Mary Ainsworth devised the Strange Situation, a careful observation of how infants respond to brief separations from a parent. From it she identified distinct patterns of attachment, revealing how a child's sense of security is built in everyday moments of care.

Questions in their spirit

What they’d ask you

Sit with one. Answer online, or in the app.

All questions

Carry the idea forward

Ainsworth — What they’d ask you

Psipas asks you one small, honest question at a time — and builds the picture from your answers.