Fluid Intelligence: Fluid intelligence refers to the ability to think logically and solve problems in novel situations without relying heavily on prior knowledge or experience.
Crystallized Intelligence: Crystallized intelligence refers to the accumulation of knowledge and skills acquired through experience and education. It involves using previously learned information to solve problems.
Mental Age: Mental age represents the level of intellectual functioning typically associated with a certain chronological age. It is often used in determining an individual's intelligence quotient (IQ) by comparing their performance on tests with others in their age group.