Overview
This lecture explains the Cattell-Horn-Carroll (CHC) theory of intelligence, highlighting its hierarchical structure and distinguishing between fluid and crystallized intelligence.
Theories of Intelligence
- The CHC theory is a compromise between singular and multiple intelligence theories.
- Intelligence in CHC is divided into fluid intelligence and crystallized intelligence.
Fluid vs. Crystallized Intelligence
- Fluid intelligence is raw processing power, independent of culture and environment.
- Crystallized intelligence reflects learned knowledge from experiences and environment.
Hierarchical Structure of CHC Theory
- The CHC model is organized into three levels.
- The top level is general intelligence, known as the g factor.
- The second, broad level includes general abilities: fluid intelligence, crystallized intelligence, general memory, and processing speed.
- The third, narrow level consists of specific cognitive abilities within each broad category.
- Crystallized intelligence: specific skills like reading, spelling, and language comprehension.
- Fluid intelligence: specific skills like speed of reasoning and facial reasoning.
Key Terms & Definitions
- CHC Theory — Cattell-Horn-Carroll theory; a hierarchical model of intelligence.
- Fluid Intelligence — the basic processing power that is free from environmental influences.
- Crystallized Intelligence — intelligence reflecting accumulated knowledge from culture and experience.
- g Factor — general intelligence at the top of the hierarchy.
Action Items / Next Steps
- Review notes from lesson five on development for more about fluid intelligence.
- Be prepared to identify examples of fluid vs. crystallized intelligence.