How have intelligence tests developed and changed since they were first introduced?
● Alfred Binet and Théodore Simon developed the first intelligence test to help French educators place students in classes appropriate for their intelligence levels.
● Lewis Terman revised the original Binet and Simon test into the Stanford-Binet intelligence test. This test established the intelligence quotient (IQ) as the number that results from dividing mental age (MA) by chronological age (CA) and multiplying by 100.
● David Wechsler developed a battery of intelligence tests that have become the most widely used individual intelligence tests in America. The Wechsler intelligence scales include several innovations, including different tests for different age groups, separate scores for verbal and nonverbal abilities, and subtests for strengths and weaknesses.
● Many other intelligence tests are designed to be administered to groups.
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