Raymond Cattell distinguished between ________ intelligence, which involves the knowledge a person has already acquired, and ________ intelligence, which is the ability to see complex relationships and to solve problems.
In 1971, psychologist Raymond Cattell said that general intelligence is divided into two which are fluid and crystallized intelligence. According to Raymond, crystallized intelligence mainly depends on the knowledge that someone has already acquired while fluid intelligence is the ability to see complex relationships and to solve problems.
