" Intelligence "
Robert Plomin and his colleagues have did an experiment with a group of specially gifted children. They are the top students in their school, they are the top 1%. They are around the age of 12 to 14 years old and have the IQ of about 160. He did blood test with the specially gifted students and studied the chromosome 6. He found out that in the IGF2R gene's pattern is different from an ordinary human gene. Robert Sternberg claims that there are three different kinds of intelligence; analytic, creative, and practical. Charles Spearman in 1904 noticed that when a child does well in one subject, tends to do well on the other subjects as well. He names this the general intelligence, aka 'G'. Thomas Bouchard did experiments on twins by changing their environment. Towards the end of the experiment, he noticed that their personality are the same.
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