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.
Resource Library
Resource Library
Authoritative guides on IQ testing, scoring methodology, careers, and our product.
How to Ace a Pre-Employment Cognitive Test: The Complete Preparation Guide
Evidence-based strategies to prepare for CCAT, Wonderlic, and PI Cognitive assessments. Learn what these tests measure and how to score your best.
Your IQ Is a Range, Not a Number: What Confidence Intervals Really Mean
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.
"Am I Smart Enough?" What the Data Really Says About IQ and Elite Careers
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.
What Each IQ Point Is Actually Worth in Salary
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.
Every IQ Test Question Type Explained: The Complete Guide to 16 Cognitive Assessments
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.
Your Cognitive Edge: A 5-Step Action Plan for the Spring 2026 Job Market
Spring 2026 is peak hiring season. Use your cognitive strengths to stand out with this 5-step plan: assess, position, prepare, interview, negotiate.
Find Your Cognitive Career Match: How to Align Your Brain's Strengths with the Right Role
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.