IQ guides

Short, honest answers to common questions about IQ.

• What is a good IQ score?What counts as average, high and very high, with a chart.
• Are online IQ tests accurate?Why scores differ between sites, and how to spot a more reliable test.
• What do IQ tests measure?The abilities behind an IQ score, and verbal vs non-verbal tests.
• Matrix reasoning: how matrix puzzles workThe rules hidden in matrix puzzles, and tips to solve them.
• Does IQ change with age?Why the average is 100 at every age, and how abilities change over life.
• Can you increase your IQ?What research says about school, brain games, practice and sleep.
• IQ percentile calculatorType an IQ score and see its percentile and how rare it is.
• What is fluid intelligence?Solving new problems vs using what you know: two sides of intelligence.
• What IQ do you need for Mensa?The top 2%: what score that is, and how admission works.
• What IQ is considered genius?Why there’s no official genius score, and how rare very high IQs are.