Philosophy
Epistemological Challenges in Cross-Cultural Survey Equivalence Testing
Quick fact
Even when a survey is perfectly translated, cultural differences in how people interpret 'happiness' or 'work' can make cross-cultural comparisons meaningless, because the same words may not carry the same cognitive and emotional weight.
Why this is interesting
Imagine asking 'Do you feel happy at work?' in Tokyo, Cairo, and Oslo—are you really measuring the same thing?