Today, almost every layperson understands the concept of intelligence tests and can glibly discuss IQ scores. In fact, these have become so common in the popular imagination that magazines, websites and pop quizzes offer to assess your intelligence at the drop of a hat! In this scenario, it's interesting to recall the very first person who proposed the concept of measurable intelligence. Alfred Binet was basically a clinical psychologist whose wide-ranging interests in learning difficulties faced by school children prompted him to undertake extensive studies in human cognition, psychology, learning and behavior...