then success on the test represented the 8-year-old level of intelligence. From Binet's work, the phrase "intelligence quotient," or "IQ," entered the vocabulary. The IQ is the ratio of "mental ...
The concept of IQ testing began in the early 20th century with Alfred Binet, who developed the Binet-Simon scale to identify children needing special education. Over time, this test evolved into ...
Intelligence Quotient (IQ) tests have long been the standard for measuring human intelligence. Developed in the early 20th century, these assessments evaluate cognitive abilities through tasks that ...