Real World IQ'">
Real World IQ'">
Plain-English explanations of what IQ scores mean, how they are calculated, and where they stop being useful. Written and edited by Timothy E. Parker, Guinness World Records Puzzle Master.
How accurate are online IQ tests? Learn to spot fake tests, understand what makes an IQ test valid, and find out which online assessments actually measure intelligence.
Read the guideComprehensive table of average IQ scores for 70+ professions ranked by intelligence. See where doctors, lawyers, engineers, teachers, and tradespeople fall on the IQ scale.
Read the guideAll 50 U.S. states ranked by estimated average IQ score. See how your state compares, what factors drive the differences, and where the smartest Americans live.
Read the guideCan you actually raise your IQ? We examine the real science — dual n-back training, the Flynn Effect, exercise, education, and music — to separate evidence from hype.
Read the guideComplete IQ score chart with ranges, percentiles, and classifications. Understand what every IQ score from 70 to 160+ means in real-world terms.
Read the guideClear comparison of IQ (cognitive intelligence) vs EQ (emotional intelligence). How each is measured, what research says about which predicts success, and why both matter.
Read the guideWhat counts as a good IQ score? Learn what different IQ ranges mean, how they affect your career, and why most free test scores are inflated.
Read the guide