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How Average IQ Varies Across 200+ Countries: What the Data Actually Shows

April 6^th, 2026

National IQ averages vary dramatically, but the data is more contested than most sources admit. Here's what the science shows, and what it means for you.

16 min•Read more

Test Preparation

Day-of IQ Test Checklist: 24 Hours to Your Best Score

February 6^th, 2026

Complete 24-hour checklist before your IQ test. Sleep, nutrition, timing, environment, and mindset tips backed by science.

16 min•Read more

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How Average IQ Varies Across 200+ Countries: What the Data Actually Shows

Day-of IQ Test Checklist: 24 Hours to Your Best Score

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