If Bowlby is correct & attachment is innate, it should be universal across cultures.
If secure attachment is the optimal form for all humans, it should be dominant across cultures.
Different cultural child-rearing practices should not affect this.
Key Study: Van Ijzendoorn & Kroonenberg (1988):
Aim= to see if there is evidence of inter-cultural differences in attachment (also looked at intra-cultural differences).
Conducted a meta-analysis of the findings of 32 studies of attachment.
Altogether the studies examined 2000Strange Situation classifications in 8 different countries.
All studies used the same procedure & looked at mother-infant interactions.
Key Study: Van Ijzendoorn & Kroonenberg (1988) findings:
Secure attachments were found to be the most dominant across all cultures- on average findings are consistent with Ainsworth's original research.
Lowest secure attachment in China, highest in Great Britain.
Insecure-avoidant was the next most common in all countries apart from Japan & Israel.
Germany had highest level of avoidant, Japan & Israel highest level of resistant.
Variation within cultures was 1.5 times greater than the variation between culture.
Van Ijzendoorn & Kroonenberg (1988) key study conclusion:
As there is little cultural variation compared to the original US sample, it is indicated that attachment is an innate feature.
Evaluating cultural variation in attachment- weakness:
The meta-analysis is heavily skewed towards Western countries to assess cultural variation in attachment.
A disproportionately high number of the studies reviewed were conducted in the USA & many areas of the world were totally omitted (eg Africa & South America).
This means that the apparent consistency between cultures might not genuinely reflect how much attachment types vary between cultures.
Means that Van Ijzendoorn & Kroonenberg's meta-analysis is not a valid measure of cultural variations in attachment.
Evaluating cultural variation in attachment- weakness:
Some research does show cultural variation in attachment.
Grossman & Grossman (1991) found German children tended to be classified as insecure rather than secure.
This could be down to a specific cultural child-rearing practice that values independence so children didn't seek proximity (thus appearing insecure).
If attachment varies due to cultural variations in child-rearing, then it questions if attachment is innate.
Evaluating cultural variation in attachment- weakness:
Some research does show cultural variations in attachment- Takahashi (1990) found similar rates of secure attachments in Japanese children, but found no insecure avoidant children & high rates of insecure resistant.
As Japanese child rearing rarely involves separation from the mother, this would explain why they appear so distressed in the SS- means that they only appear insecure.
If attachment varies due to cultural variations in child-rearing, then it questions if attachment is innate.
Evaluating cultural variation in attachment- weakness:
Issues with using the SS to assess cultural variation in attachment.
The SS was developed in the USA using American samples.
Imposing one culture's view of 'normal behaviour' on another imposed etic, eg 'willingness to explore' is deemed a sign of secure attachment, but may not be present in Japanese samples.
Means that the SS is not a valid tool to measure cultural variations in attachment- meaning the meta-analysis of its findings is also invalid.