William Stern (psychologist) - Wikipedia, the free encyclopedia

William Stern (German: [ʃtɛɐ̯n]; 29 April 1871 – 27 March 1938), born Wilhelm Louis Stern,[1] was a German psychologist and philosopher noted as a pioneer in the field of the psychology of personality and intelligence. He was the inventor of the concept of the intelligence quotient, or IQ, later ...