Spearman’s General Intelligence (g)
Charles Spearman’s theory that a single general factor, g, underlies all mental abilities.
Gardner’s Theory of Multiple Intelligences
Howard Gardner argued that there are several distinct intelligences, not one — and why scientists debate it.
Sternberg’s Triarchic Theory of Intelligence
Robert Sternberg split intelligence into analytical, creative and practical components.
The Cattell-Horn-Carroll (CHC) Model
CHC theory is the dominant modern framework, organising intelligence into broad and narrow abilities.
Thurstone’s Primary Mental Abilities
Louis Thurstone argued intelligence is several distinct primary abilities, challenging a single g.
Emotional Intelligence: Theory and Evidence
What emotional intelligence is, the Salovey-Mayer ability model, Goleman’s popularisation, and what the science says.
The PASS Theory of Intelligence
The PASS model views intelligence through Planning, Attention, and Simultaneous and Successive processing.
Triarchic vs Multiple Intelligences
A balanced comparison of Sternberg’s triarchic theory and Gardner’s multiple intelligences.
📅 Last updated: 2026-06-18 · ✔ Reviewed by the All-Lifes editorial team · About · Methodology