
How Average IQ Varies Across 200+ Countries: What the Data Actually Shows
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.
Authoritative guides on IQ testing, scoring methodology, careers, and our product.

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.

Evidence-based strategies to prepare for CCAT, Wonderlic, and PI Cognitive assessments. Learn what these tests measure and how to score your best.

Every IQ score is a range, not a fixed number. Learn what Standard Error of Measurement means, why scores shift, and how to read your confidence interval.

What does cognitive science say about IQ for elite careers? Data-backed benchmarks for surgeons, lawyers, and engineers — and why your cognitive profile beats your score.

Research shows each IQ point adds $234–$616 to annual salary. Explore the data on cognitive ability, earnings by career tier, and why the IQ premium compounds over time.

Master all 16 IQ test question types — from Raven's matrices and paper folding to the Stroop test, N-back, and Wisconsin Card Sort. Know what to expect.

Spring 2026 is peak hiring season. Use your cognitive strengths to stand out with this 5-step plan: assess, position, prepare, interview, negotiate.

Your cognitive profile — logic, verbal, spatial, and numerical strengths — points to the right career. Here's how to decode your strengths and find your fit.