Is there a point in life (age) that your intelligence and ability to learn will be at its peak? At which point (on average) will this start to decline quickly?
In the 1940’s, psychologist Raymond B. Cattell attempted to create “culture-free” tests of intelligence. Believing that IQ tests contain implicit biases in favor of particular cultures, he sought to apply factor analysis to partition the g factor of intelligence (as measured by IQ) into two components–fluid and crystallized. He described fluid intelligence, as “a capacity …