Who is credited with pioneering the modern intelligence-testing movement?

Alfred Binet is recognized for initiating the modern intelligence-testing movement, particularly through his development of the Binet-Simon scale in the early 20th century. This scale was created to identify children who required additional academic support, marking the first systematic attempt to measure cognitive abilities in a formalized manner. Binet's work laid the foundation for future intelligence tests, influencing how intelligence is understood and measured in educational and psychological contexts. His approach emphasized the use of a variety of tasks to assess different cognitive skills, which remains a cornerstone in the development of intelligence testing today.