Another psychologist further divided g factor into fluid and crystallized intelligence. Raymond Cattell claimed fluid intelligence is based on logic and crystallized is based on knowledge or the ability to use one’s knowledge. French psychologist Albert Binet devised the first standardized intelligence test in 1905. It compared an individual score to scores of children of his or her age. Later devised by Stanford university, the intelligence scale has five sections: fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.
Crystallized intelligence is believed to increase with age, as individuals accumulate more knowledge and information throughout their lives. On the other hand, fluid intelligence is said to peak in early adulthood and then gradually decline with age.
These two types of intelligence work together to determine an individual's overall cognitive abilities. While fluid intelligence helps with problem-solving and abstract thinking, crystallized intelligence allows individuals to apply their knowledge and experience to real-world situations.
Overall, understanding the different aspects of intelligence can help psychologists and educators better assess and support individuals in reaching their full potential. By recognizing the unique strengths and weaknesses of each individual, we can tailor interventions and educational opportunities to foster growth and development in both fluid and crystallized intelligence.