Patterns of Attachment: A Psychological Study of the Strange Situation
Also known as Patterns of Attachment, Ainsworth et al. (1978)
Ainsworth and colleagues' 1978 report of the Baltimore study and the Strange Situation
At a glance
What it found
Reunions reveal the pattern, Lab matches home, Responsive mothers, less crying
See all 3Key ideas
The Strange Situation, Three groups: A, B, C, Secure base behavior …
See all 4Examples from the book
Kicking at mother, Book outline
See all 2Criticism and limits
Small and narrow sample, Artificial and mother-centred, Culture …
See all 4Read next
Infancy in Uganda, Attachment and Loss, Hold Me Tight
See all 3Connections
Mary Ainsworth, Mary C. Blehar and 4 others
See all 6
Also on this page: Key facts · Links · Sources · Related pages
- The book reports Mary Ainsworth's Baltimore longitudinal study of mothers and babies through the first year.
- It introduces the Strange Situation, a 20-minute lab procedure of two short separations and reunions.
- How a one-year-old behaves on reunion sorts it into secure, avoidant or ambivalent patterns.
- Those patterns matched how sensitively mothers had responded at home.
- It became the standard method of attachment research.
Why it matters
- For anyone who meets the words secure, avoidant and anxious attachment: this is where the categories and their evidence come from.
Key facts
- Authors
- Mary D. Salter Ainsworth, Mary C. Blehar, Everett Waters, Sally N. Wall1
- Published
- 1978; Psychology Press Classic Editions 20152
- Publisher
- Lawrence Erlbaum Associates, Hillsdale NJ (1978); Psychology Press (2015)2
- Pages
- 466 (2015 edition)1
- ISBN
- 978-0-89859-461-4 (1978); 978-1-84872-682-6 (2015)2
- Design
- Home observations of Baltimore families through the first year, then the Strange Situation at about one year3
- Influence
- Hundreds of Strange Situation studies followed; attachment and the procedure came to seem synonymous3
What it found
-
Reunions reveal the pattern3
Some one-year-olds were angry and ambivalent when mother returned; others avoided her; most sought contact.
-
Lab matches home3
Infants ambivalent or avoidant on reunion had less harmonious relationships with their mothers at home.
-
Responsive mothers, less crying3
In the Baltimore project, babies whose mothers responded promptly to crying early on cried less late in the first year.
Key ideas
-
The Strange Situation4
Eight short episodes in a playroom: a stranger enters, mother leaves twice and returns, once leaving the baby alone.
-
Three groups: A, B, C4
Avoidant (A), secure (B) and ambivalent or resistant (C); Main and Solomon later added a fourth, disorganized.
-
Secure base behavior3
Infants explored more with mother present than after a stranger came in or mother left.
-
Expectations from experience3
Ainsworth explained the patterns by what infants had come to expect from earlier satisfying or rejecting care.
Examples from the book
Criticism and limits
-
Small and narrow sample5
The original Baltimore classification rested on 26 middle-class American children, a criticism of bias.
-
Artificial and mother-centred5
Critics said the procedure lacked ecological validity and focused on the mother rather than a general style.
-
Culture4
Brief separations may not mean the same everywhere; Japanese infants, rarely separated, were a case in point.
-
Global spread holds4
A meta-analysis of 2,000 dyads found 21% A, 65% B, 14% C, broadly matching the 1978 distributions.
Read next
-
Ainsworth's first attachment study, where these patterns first appeared.
-
Bowlby's theory that this study tested.
-
How adult attachment patterns show up between partners.
Connections
Written by
- Mary AinsworthPerson
- Mary C. Blehar
- Everett Waters
- Sally N. Wall
Links
Sources
- Patterns of Attachment, Psychology Press Classic Editions (Routledge) (opens routledge.com)
- Attachment theory (Wikipedia) (opens en.wikipedia.org)
- Bretherton I. The origins of attachment theory: John Bowlby and Mary Ainsworth, Developmental Psychology 1992 (opens psychology.sunysb.edu)
- Strange situation (Wikipedia) (opens en.wikipedia.org)
- Mary Ainsworth (Wikipedia) (opens en.wikipedia.org)
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