Charles Spearman
(1863-1945)
English psychologist, Charles Spearman, studied human intelligence and developed a factor analysis which was used to study the results of mental aptitude tests. He noted that those individuals who excelled in one aptitude usually did well on others and vice versa for those who did poorly on them. One of these factors he used was referred to as the "g" factor, or general intelligence. The other was the specific intelligence factor, or simply "s". He hypothesized that with a combination of g and s factors, a person who does well on one part of a test tends to do well across the board.
(1863-1945)
English psychologist, Charles Spearman, studied human intelligence and developed a factor analysis which was used to study the results of mental aptitude tests. He noted that those individuals who excelled in one aptitude usually did well on others and vice versa for those who did poorly on them. One of these factors he used was referred to as the "g" factor, or general intelligence. The other was the specific intelligence factor, or simply "s". He hypothesized that with a combination of g and s factors, a person who does well on one part of a test tends to do well across the board.