Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Theodore Simon was a French psychologist and collaborator of Alfred Binet who together developed the first widely used intelligence tests during the early 1900s. Their tests aimed to measure a child's mental age compared to their chronological age.
A concept introduced by Binet and Simon that refers to the level of cognitive functioning typically found in individuals at a specific chronological age.