Early attachment may shape later friendships, romantic bonds, and parenting by creating expectations about the self and others that guide emotion, trust, and behavior across development.

The internal working model

Bowlby proposed that early experiences with a primary caregiver are used to build an internal working model. This model acts as a mental framework for understanding what relationships are like and what to expect from other people.

Diagram of Bowlby’s internal working model showing the reciprocal links between representations of Self, Other, and the world. It helps visualize how early caregiver experiences can shape expectations about trust, self-worth, and exploration, which then guide later relationship behaviour. Source

A child whose caregiver is responsive and reliable is more likely to develop a positive model of others as trustworthy and a positive model of the self as worthy of love. A child whose caregiver is rejecting, insensitive, or inconsistent may develop expectations that others are unreliable or that closeness is unsafe.

Because the model is used repeatedly, it can become a stable template. It influences how a person interprets another person’s behavior, how much trust they show, how they respond to conflict, and how comfortable they feel with intimacy or dependence.

How the internal working model affects later relationships

Childhood and adolescence

The model is first used outside the family in peer relationships. Children with a more secure model are generally more likely to:

• expect support from others

• regulate emotions effectively

• show empathy and cooperation

• form closer, more stable friendships

Children with a more insecure model may find relationships harder to manage.

Compact schematic summarising common attachment categories (secure vs insecure patterns, including avoidant and anxious forms). Use it as a quick visual organiser for linking an internal working model to predictable relationship strategies such as distancing (avoidant) or clinginess/anxiety (ambivalent/resistant). Source

For example, an avoidant-style model may lead to emotional distance, while an ambivalent or resistant-style model may produce clinginess, anxiety, or overdependence. These patterns can affect friendship quality and social confidence.

Adult romantic relationships

In adulthood, the same relationship template may influence partner choice, communication, and emotional closeness. People with a secure internal working model are more likely to:

• trust partners

• feel comfortable with intimacy

• handle disagreement without excessive fear

• seek support and offer support in return

An insecure model may create difficulties. A person who expects rejection may become overly anxious, jealous, or preoccupied with reassurance. A person who expects closeness to be uncomfortable may avoid deep commitment or withdraw during emotional situations. In this way, early attachment may contribute to recurring patterns in adult love relationships.

Parenting in the next generation

The internal working model may also influence how adults behave as parents. Adults who see caregiving as warm, responsive, and dependable may be more likely to provide that style of care to their own children. This is called intergenerational transmission of attachment. It suggests that the model can help explain how early experiences continue to shape relationships across generations.

Research support

One important line of evidence comes from Hazan and Shaver. They used a “love quiz” to assess adult romantic attachment. Participants who described themselves as securely attached reported more positive, trusting, and longer-lasting romantic relationships. Those with insecure attachment styles reported patterns more consistent with anxiety or avoidance. This supports the idea that early attachment is linked to later relationship behavior.

Research has also linked the internal working model to parenting. Bailey et al. found that women’s attachment to their own mothers was associated with the attachment type of their babies. Mothers who had insecure attachments were more likely to have infants with insecure attachments. This supports the idea that relationship expectations may be carried forward into later caregiving.

Some evidence also suggests that secure early attachment is associated with better later peer competence and friendship quality. This fits the view that internal models affect not only romantic relationships, but a wide range of later social bonds.

Evaluation of the explanation

Strengths

A major strength is that there is supporting research across different kinds of relationships. Findings from friendship, romantic, and parenting research all point in the same general direction: early attachment is associated with later relationship patterns. This gives the explanation breadth as well as relevance.

The concept also has practical value. If negative relationship expectations are rooted in early attachment, support for parents and children may improve not only present bonding but later social development. It also helps psychologists understand why some adults repeat similar relationship difficulties over time.

Limitations

A key limitation is that much of the evidence is correlational. Studies often show that early attachment and later relationships are linked, but they do not prove that the internal working model causes later outcomes. Other factors, such as temperament, family stress, or broader social experiences, may help explain the association.

Another issue is that continuity is not inevitable. Later experiences can modify relationship expectations. A stable, supportive friendship or romantic partnership may help a person develop more secure expectations, even if early attachment was insecure. This means the internal working model may be updated, rather than remaining fixed forever.

There are also methodological concerns. Adult attachment research often relies on self-report measures, which may be affected by memory errors, social desirability, or limited insight into one’s own relationship patterns. This can reduce confidence in how accurately studies capture the influence of early attachment.