Authoritative guides on IQ testing, scoring methodology, careers, and our product.
Forced-rank quotas downgrade high performers and lift their voluntary exit hazard 34% at 18 months. Here's what the research says, and what to do next.
Decade-by-decade IQ data from Hartshorne, Salthouse, Schaie, and Singh-Manoux shows no single peak age. See which abilities decline, hold, or rise after 45.
The Cognitive Demand Index maps IQ by occupation across 100 US jobs using O*NET reasoning data and BLS 2024 wages. See where brain power and pay diverge.
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, plus 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.
From pattern recognition to working memory, discover the 7 cognitive skills employers now test in 2026 hiring assessments and how to prove you have them.