Intelligence vs Knowledge: What Is the Difference?
Intelligence helps us acquire and use knowledge. Knowledge is what experience and learning have already put at our disposal.
Category Intelligence
Evidence-led explanations of what intelligence is, how it is measured, how cognitive abilities relate, and what intelligence scores can and cannot tell us.
Ability vs. Performance: Why What You Can Do Is Not Always What You Do
How psychologists infer ability from observable performance, why the same person can perform differently across occasions, and where context belongs without turning every score into…
Can Intelligence Change?
What can change, what tends to remain stable, how education affects cognitive ability, and why improving on a test is not automatically the same as increasing general intelligence.
What Is a Cognitive Profile?
What a pattern of cognitive scores really shows, how psychologists decide whether a difference is meaningful, and why a profile is evidence rather than a diagnosis.
What Is IQ — and What Does an IQ Score Actually Mean?
How performance on many cognitive tasks becomes a standardized number, what 100 and 115 mean, and what an IQ score can and cannot tell us.
What Are Fluid and Crystallized Intelligence?
What it means to reason through a new problem versus use knowledge you have already acquired, how the two are measured, and why they are related rather than separate minds.
Is Intelligence One Ability or Many?
Why human cognitive ability is neither one undivided faculty nor a collection of unrelated talents—and what “both” means in practice.
What Is General Intelligence (g)?
What the general factor is, how researchers obtain it from many different cognitive tests, what an individual's g score means, and why g is not the same thing as IQ.
What Is Intelligence?
A scientific guide to what we mean by intelligence—in humans, other animals, artificial systems and the study of cognitive ability.