Louis Leon Thurstone: The Architect of Modern Psychometrics While names like Freud or Skinner often dominate the conversation regarding 20th-century psychology, (1887–1955) stands as perhaps the most influential figure in how we actually measure the human mind. An engineer by training but a psychologist by trade, Thurstone transformed psychology from a field of observation into a rigorous, mathematical science. The Engineer of the Mind
Thurstone was one of the first psychologists to apply mathematical techniques to understand human behavior. He is best known for his work on: thurstone
Thurstone's work on attitude measurement is also noteworthy. He developed the "method of equal appearing intervals," which is still used today to measure attitudes and opinions. This method involves creating a scale with a series of statements that are designed to elicit a particular attitude or opinion. Louis Leon Thurstone: The Architect of Modern Psychometrics