Strange situation evaluation

Why is the Strange Situation considered reliable and replicable?

The Strange Situation has high inter-observer (inter-rater) reliability because it is highly operationalised, with clear behavioural categories (e.g. separation anxiety, stranger anxiety, reunion behaviour, willingness to explore/safe base behaviour). Observers know exactly what to look for.
It is also a controlled observation with a standardised procedure (8 stages/episodes), meaning it can be replicated easily, often producing consistent findings across studies.

What evidence supports the reliability of attachment classifications in the Strange Situation?

Waters (1978) assessed 50 infants at 12 and 18 months using the Strange Situation.
They found high consistency over time, with 48/50 infants classified in the same attachment category at both ages.
The strongest consistency was seen in reunion behaviour after separation, suggesting that attachment type is a stable individual difference, supporting the reliability of Ainsworth’s classifications.

What is a strength of the Strange Situation in terms of generalisability and application?

The Strange Situation has been replicated across many different cultural groups, increasing the generalisability of findings.
It is also a well-respected standardised diagnostic tool, widely used to assess attachment type and strength between caregivers and infants in both research and applied settings.

What are the limitations of the Strange Situation in terms of ecological validity?

The Strange Situation has low ecological validity because it takes place in a controlled laboratory setting.
The 8 scripted stages (e.g. caregiver and stranger entering/leaving at set times) are artificial and unlikely to occur in real life, meaning behaviour observed may not reflect how infants behave in natural environments, reducing external validity.

Why are Ainsworth’s attachment categories criticised as incomplete?

Ainsworth proposed three attachment types (Secure, Insecure-avoidant, Insecure-resistant), but Main & Cassidy (1988) later identified a fourth type: Disorganised attachment.
This suggests that the original classification system is over-simplified, as not all infants fit neatly into the three original categories.

How is the Strange Situation culturally biased (ethnocentric)?

The Strange Situation was developed in the USA using middle-class American infants, so the behavioural criteria reflect American cultural values (e.g. independence).
This makes it ethnocentric, as other cultures are judged against these standards:

• Japanese infants often classified as insecure-resistant due to high distress (but this may reflect lack of separation experience)

• German infants often classified as insecure-avoidant due to cultural emphasis on independence
  Thus, classifications may reflect cultural practices rather than true attachment differences.

Why is the Strange Situation limited as a ‘snapshot’ measure?

The Strange Situation only captures a brief snapshot of behaviour (≈20 minutes) in an unfamiliar setting.
It does not consider:

• The infant’s behaviour in familiar environments (e.g. home)

• Relationships with other caregivers (e.g. father, grandparents)
  This limits its ability to fully represent the complexity of attachment relationships.

Why is the term ‘insecure attachment’ considered socially sensitive and a value judgement?

The term ‘insecure’ implies that these attachment types are inferior to secure attachment, which is a value judgement.
This can:

• Stigmatise parents, especially mothers who may struggle balancing work and childcare

• Lead to cultural bias, where entire cultures are labelled as having ‘inferior’ attachment styles
  Therefore, the research has social sensitivity implications.