Human intelligence: the model is the message.

Theories of intelligence, and some of the research testing them, are designed to answer three basic questions about intelligence: (i) What is the relation of intelligence to the internal world of the individual? (ii) What is the relation of intelligence to the external world of the individual? (iii) What is the relation of intelligence to experience? Various models of the mind underlying the theories have been proposed; the strengths and limitations of these models are assessed. A theory that addresses all three questions simultaneously is the triarchic theory.