Forgotten Norwegian BG study from 1989 found h2's of 43 51 66% for occup edu IQ. Shared genes too. PDF http://emilkirkegaard.dk/en/wp-content/uploads/Genetic-and-environmental-contributions-to-the-covariance-between-occupational-status-educational-attainment-and-IQ-A-study-of-twins.pdf … @JayMan471
12:05 AM - 30 Nov 2014
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