I highly doubt the overall validity of that data, even where it’s available. You want to tell me that in 12 of the 48 countries on the list, the average person is not intelligent enough to harvest vegetables? (compare Alan S. Kaufman, IQ Testing 101, p. 126)
I would assume that either the tests were mostly performed on young children or presented in a way that’s not suitable for the demographic. Someone who can’t read isn’t necessarily less intelligent but they will have trouble completing a test that includes written instructions. Same for a general familiarity with the most common forms of geometric logic puzzles which is what IQ tests mostly seem to contain.
I highly doubt the overall validity of that data, even where it’s available. You want to tell me that in 12 of the 48 countries on the list, the average person is not intelligent enough to harvest vegetables? (compare Alan S. Kaufman, IQ Testing 101, p. 126)
I would assume that either the tests were mostly performed on young children or presented in a way that’s not suitable for the demographic. Someone who can’t read isn’t necessarily less intelligent but they will have trouble completing a test that includes written instructions. Same for a general familiarity with the most common forms of geometric logic puzzles which is what IQ tests mostly seem to contain.