5. He was known as "Mr. IQ" although, strictly speaking, the originator of that concept was a German psychologist who also had attended the Congress. He developed the "Stanford Revision of the Binet-Simon Scales" and organized a longitudinal study of "genius," the first of its kind. His son, Fred, who was also a subject in the "genius" study, was a prime mover in the development of famed Silicon Valley.

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