Document Type

Book Chapter

Publication Date

4-25-2025

Keywords

acquired knowledge, cognitive abilities, crystalize intelligence, fluid intelligence, intelligence, problem solving, rational thinking

Disciplines

Developmental Psychology

Abstract

The construct of intelligence has been extensively debated and ascribed many definitions. A typical example, provided by David Wechsler, defines intelligence as “the aggregate or global capacity of the individual to act purposefully, to think rationally, and to deal effectively with [one’s] environment.” While most intelligence theorists agree upon the existence of a “general intelligence” (often symbolized g), and agree upon the existence of narrower abilities, there is a great deal of disagreement about the nature and number of the narrower abilities. For example, Cattell proposed a model including crystallized intelligence, the ability to employ acquired skills and knowledge, and fluid intelligence, the ability to identify trends, use logic and reasoning, and solve novel problems. Some theorists such as Gardner even consider skills like musical ability and interpersonal talents to be kinds of intelligence.

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