Spearman's General Intelligence (g)
Charles Spearman's theory of general intelligence (g) and the positive manifold β why scores on different mental tests tend to correlate.
Gardner's Theory of Multiple Intelligences
Howard Gardner's theory of multiple intelligences β the eight intelligences, what it proposes, and why scientists debate the evidence.
Sternberg's Triarchic Theory of Intelligence
Robert Sternberg's triarchic theory: analytical, creative and practical intelligence, and why he says successful intelligence is more than IQ.
The Cattell-Horn-Carroll (CHC) Model
The Cattell-Horn-Carroll (CHC) three-stratum model β the dominant modern framework behind most current IQ tests.
Thurstone's Primary Mental Abilities
Louis Thurstone's seven primary mental abilities and his challenge to the idea of a single general intelligence factor.
Emotional Intelligence: Theory and Evidence
Emotional intelligence β Salovey and Mayer's ability model, Goleman's popular version, and what the evidence does and doesn't support.
The PASS Theory of Intelligence
The PASS theory by Das and Naglieri β Planning, Attention, Simultaneous and Successive processing, rooted in Luria's neuropsychology.
Triarchic vs Multiple Intelligences
A balanced comparison of Sternberg's triarchic theory and Gardner's multiple intelligences β what they share and where they differ.
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Last updated: 2026-06-18 Β· β Reviewed by the All-Lifes editorial team Β· About Β· Methodology