Charles Spearman's two-factor theory

Definition

Charles Spearman's two-factor theory is a psychological theory that suggests that intelligence consists of two factors: the general factor (g-factor) and specific factors (s-factors). The g-factor represents a person's overall intelligence, while the s-factors represent specific abilities in particular domains.

Related terms

General factor (g-factor): This term refers to the underlying factor of general intelligence that influences overall cognitive ability.

Specific factors (s-factors): These are individualized abilities or skills within certain domains such as verbal comprehension or numerical reasoning.

Primary mental abilities: Louis Thurstone's concept that suggests intelligence is composed of seven primary mental abilities including verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perceptual speed, and reasoning.