Intelligence refers to intellectual functioning. Intelligence Quotients, or IQ scores, compare your performance with other people your age who take the same test. However, these tests don’t measure all kinds of intelligence. For example, such tests can’t identify differences in social intelligence, the expertise people bring to their interactions with others. There are also generational differences in the population as a whole. Better nutrition, more educational opportunities, and other factors have resulted in IQ improvements for each generation.
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