Ainsworth's strange situation because the measure reflected only the norms and values of American culture. E.g., secure attachment was characterised by infant showing separation distress. However, this led to the misinterpretation of child-rearing practises in other cultures which were seen to deviate from the American 'norm', e.g. German mother were seen as cold rejecting, rather than encouraging independence for their children and their children were more likely to be classified as insecure-avoidance as result.