Final answer:
According to Louis L. Thurstone, intelligence is made up of seven different primary mental abilities. Thurstone's approach is distinct from the single factor theory of intelligence and is more aligned with later hierarchical theories like the Cattell-Horn-Carroll (CHC) theory, which encapsulates various specific and broader cognitive abilities.
Step-by-step explanation:
According to Louis L. Thurstone, intelligence is actually made up of the combination of seven different primary mental abilities, all of which are distinct from other types of skills. Thurstone's theory contrasts with other intelligence theories of the time, which often focused on a single factor or general intelligence. Instead, Thurstone identified several distinct areas such as verbal comprehension, numerical ability, and others that make up intelligence.
Other psychologists, like Raymond Cattell, proposed different components of intelligence, like crystallized intelligence and fluid intelligence. Crystallized intelligence refers to the knowledge a person acquires through experience and the ability to use that knowledge. Conversely, fluid intelligence involves the ability to think logically and solve problems in novel situations, independent of acquired knowledge.
The most comprehensive theory of intelligence to date, the Cattell-Horn-Carroll (CHC) theory, combines these ideas into a hierarchical structure of abilities, suggesting how individual tasks connect to broader abilities and, ultimately, to general intelligence.