1. Intelligence can be defined as the ability to learn from experience, reason, solve problems, and adapt to new situations. It involves fluid reasoning, crystallized intelligence, and practical intelligence. 2. There are several theories of intelligence that describe its structure, including the G-factor theory, fluid and crystallized intelligence, CHC theory, theory of multiple intelligences, and triarchic theory. 3. Intelligence is assessed through standardized tests that aim to be valid, reliable, and minimize cultural bias through norms established on representative populations. Factors like genetics, environment, education and socioeconomic status can influence scores.

1. Intelligence<br />Intelligence - Ability to learn from experience, solve problems, and use knowledge to adapt to new situations.<br />Rational thought and reasoning

2. The ability to act purposefully in an environment

3. The ability to deal with the situations, in an effective manner, within an environment Sternberg: Intelligence is the cognitive ability of an individual to learn from experience, to reason well, to remember important information, and to cope up with the demands of daily living.<br />Theories of Intelligence<br />G or G-Factor - is a statistic used in psychometrics to model the mental ability underlying results of various tests of cognitive ability. Developed in 1904 by psychologist Charles Spearman to account for imperfect correlations in IQ tests, this model is considered the first theory of intelligence.

4. He found a trend for all such tests to correlate positively with each other called Positive Manifold.