In 1905,who developed the first test of intelligence with substantial validity?
A) Alfred Binet and Theodore Simon
B) Alfred Binet and Victor Henri
C) Frances Galton and J. M. Cattell
D) William Stern and Lewis Terman

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In 1905, Alfred Binet and Theodore Simon developed the first test of intelligence with substantial validity. Together they published a new scale in 1905, the Binet-Simon intelligence scale, subsequently translated into English and revolutionizing the concept of IQ testing.

In 1905,who Developed the First Test of Intelligence with Substantial