Who published the first working intelligence test in 1905?

The first working intelligence test published in 1905 was developed by Alfred Binet in collaboration with his colleague Théodore Simon. This test was created to identify children who required special educational support. Binet's work marked a significant milestone in psychological testing; he introduced the concept of measuring intelligence as a spectrum of abilities rather than a fixed trait. The Binet-Simon scale laid the groundwork for future intelligence testing, emphasizing the importance of mental age versus chronological age, which has influenced many subsequent assessments of cognitive abilities. Binet's contributions remain foundational in the field of psychology and education.