Articles
Understanding intelligence testing.
How IQ Tests Are Scored: From Raw Answers to a Deviation IQ
A clear, honest look at how IQ tests turn raw answers into a score using norming, the deviation IQ, percentiles, and confidence ranges.
3 min read
Can You Improve Your IQ? A Balanced Look at What Actually Works
Can you raise your IQ? An honest look at practice effects, education, the Flynn effect, brain-training claims, and what genuinely supports cognition.
3 min read
Fluid vs. Crystallized Intelligence: What the Cattell-Horn Model Means
A plain-language look at fluid and crystallized intelligence in the Cattell-Horn model: definitions, examples, how each changes with age, and which test sections tap them.
3 min read
What an IQ Score Actually Means
A clear, balanced guide to IQ scores: the 100 average, the bell curve, percentiles, and what a number can and cannot tell you.
3 min read