Ljzendoorn and Kroonenberg (1988): meta-analysis collected secondary data of replications to ainsworth's strange situation to find average percentage of attachment types in each country
secure attachment style was most common
concluding that there may be universal characteristics that support infant and caregiver interactions
cultural research evaluation:
strength:
large sample and can be generalised
weakness:
ethnocentric as it assumes that all cultures have the same behaviour - potential cultural bias
research was secondary data and may have been different - different toys, different rooms