Charles Spearman

Charles Spearman was a British psychologist best known for his work on intelligence. In the early 20th century, he proposed the concept of "g" or general intelligence, suggesting that a single underlying ability influences performance across various cognitive tasks. Through statistical methods, he analyzed test scores and found that people who performed well in one area, like math, tended to do well in others, like language. Spearman's work laid the foundation for modern psychology's understanding of intelligence, emphasizing that while individuals may excel in specific skills, a core cognitive ability significantly impacts overall intellectual performance.