Ainsworth aimed to test the quality of attachments based on individual differences between mother and infant.
Ainsworth studied 106middle class US infants aged 9 - 18 months
Ainsworth used 8 “episodes” combining a stranger, the infant and their mother in a 9 x 9 room.
This was a controlled observation, observers looked through a one way mirror.
Ainsworths observations used a 1-7 scale based on the severity of:
Seperation anxiety
reunion behaviour
stranger anxiety
secure base
Ainsworth developed three attachment styles between mother and infant:
Secure - 70 %
Insecure avoidant - 15 %
Insecure resistant - 15 %
Secure attachment - 70 % of ppts
Caregiver responds quickly to the child’s needs.
The child explored and returned regularly - securebase
The child had moderate separation and stranger anxiety
The child accepts comfort on reunion
Insecure avoidant attachment - 15 % of ppts
The caregiver is unresponsive, uncaring and dismissive.
The child explores freely without proximity or securebase behaviour
The child has low separation and stranger anxiety
The child does not need comfort on reunion
The child can be comforted by a stranger
Insecure resistant attachment - 15% of ppts
The caregiver was inconsistent and unpredictable
The child explores less and seeks proximity
The child has high stranger and separation anxiety
The child resists comfort on reunion
The child accepts comfort from strangers and is uneasy around caregiver
AO3. Ainsworth’s research was ethnocentric. The research was based in America, and she used white, middleclass ppts. She also suggested that “ secure ” is a universally ideal attachment type, which isn’t correct because cultural variations have found large differences
Secure attachment - moderate separation and stranger anxiety
Insecure avoidant attachment - low separation and stranger anxiety
Insecure resistant - high stranger and separation anxiety
AO3. Ainsworth‘s conclusions are reductionist explanations of attachment Types. Main and Soloman ( 1986 ) analysed several strange situation videotapes and suggest that there is a fourth type. Some infants showed inconsistent behaviour, which they termed " insecure disorganised ". Van Ijzendoorn also found that 15 % of infants did have this attachment type This shows that human behaviour may not fit into groups, unlike what Ainsworth suggests.
AO3. Ainsworths methodology is strong. The observation is controlled, with clear behaviour categories. This means that the results are highly reliable, and Ainsworths methodology can be replicated. Also, the study was recorded, meaning it can be viewed by other psychologists at a later date, increasing inter rater reliability.
AO3. Ainsworths strange situation lacks ecological validity. The observation was conducted in an artificial setting, which was unfamiliar to both the parents and the infants. This means that the children may have acted differently to how they would act in a more familiar environment, such as home. This means we don't know if the behaviours displayed such as separation anxiety would be the same as usual. This lowers validity of the findings.