Researchers located 32 studies of attachment where Strange Situation has been used to investigate the proportions of infants with different attachment types
Findings of cultural variations (secure attachment)
Wide variation between the proportions of attachment types in different studies. Secure attachment most common classification in all countries. But proportion varies from 75% in Britain to 50% in China
Variations between the results of studies within the same country were actually 150% greater than those between countries. USA one study was 46% securely attached and the other 90%
Simonella et al assessed 76 12-month olds using strange situation in Italy. Found 50% were secure, 36% insecure-avoidant, lower rate of secure attachment that has been found in many studies
Researchers suggest that low rates of secure attachment is because of increased number of mothers of very young children working long hours and use professional childcare
Overall proportions of insecure and secure babies were similar to those in most countries- most of infants were secure. However most of those who were classified as insecurely attached were resistant and only one child was avoidant
Distribution was similar to Japan study in Ijzendoorn's study. Since Japan/Korea have similar child-rearing styles, this similarity might be explained in terms of child -rearing style
Secure attachment seems to be the norm in a wide range of cultures, supporting Bowlby's theory that attachment is innate and universal. However, researchers also clearly show that cultural practices have an influence on attachment type