This person is working at the Sorbonne when he first becomes involved in measuring human intelligence. He begins by using Broca's technique of measuring skulls and goes to various schools measuring the heads of children to see if they conform to the teacher's designation of smart or dumb. He finds that there is not always a correlation and his work basically ends the popularity of the theory of craniometry. He devises a test consisting of a series of tasks that have age levels assigned to them. From this, he is able to identify school children who require special training. He has three rules that he follows for using his tests. Those who come after him do not always follow the rules which is why they abuse so many people with the results.
This person is one of the early Americans who works on...
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