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The data are from 1932 but the analysis is more recent: here is what a group of Scottish psychologists found in 2002 when they analyzed the results of IQ tests
by trunnell 16y ago
The data are from 1932 but the analysis is more recent:
here is what a group of Scottish psychologists found in 2002 when they analyzed the results of IQ tests given to nearly all 11-year-olds in Scotland in 1932