Louis Leon Thurstone

Louis Leon Thurstone was an American psychologist and psychometrician known for his work in the measurement of intelligence and attitudes. He developed the method of factor analysis, which helps identify core components underlying a set of data. Instead of viewing intelligence as a single ability, Thurstone proposed that it consists of several distinct factors, such as verbal and spatial skills. His research laid the groundwork for modern psychological testing and emphasized the complexity of human abilities, influencing educational assessments and personality studies. Thurstone's contributions remain significant in psychology and educational testing today.