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Turn a number into meaning: ranges, percentiles, and how scores shift with age.
The 98th-percentile threshold and what genius-level scores actually mean.
The specific abilities an IQ-style test samples, one domain at a time.
When a free online estimate is enough — and when you need a supervised evaluation.
Featured Article
What Is IQ? A Complete Guide to the Intelligence Quotient Scale
IQ — short for Intelligence Quotient — is a numerical estimate of cognitive ability. But what does that actually mean? This guide breaks down the history, the math, and what modern science says about intelligence.
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IQ Score Ranges Explained: What Every Number on the Scale Means
An IQ of 100 is average — but what does 115 mean? Or 130? Or 85? This guide explains every range on the IQ scale, the corresponding percentile, and what research says each range predicts.
Free IQ Test Online: What “Free to Take” Really Means
Not all online IQ tests are equal. Most are designed to flatter you with high scores. This guide explains what transparent online assessment can and cannot tell you — and what to avoid.
How to Improve Your IQ: 7 Evidence-Based Methods That Actually Work
Can you actually raise your IQ? Research shows that cognitive performance is more plastic than once believed. Here are 7 strategies backed by neuroscience and psychology research.
Verbal Reasoning Test: What It Measures and Why It Predicts Success
Verbal reasoning is one of the strongest predictors of academic and professional success. This guide explains what verbal tests actually measure, shows example question types, and explains how to sharpen these skills.
Working Memory and IQ: Why Your Brain's Scratchpad Predicts Intelligence
Working memory — the brain's ability to hold and manipulate information in real time — is one of the strongest predictors of IQ. This guide explains why, how it's measured, and how to strengthen it.
IQ Test for Kids: A Parent's Complete Guide to Childhood Cognitive Assessment
Thinking about having your child's IQ tested? This guide explains what childhood cognitive assessments measure at different ages, when testing is appropriate, and how to interpret and act on results.
Online IQ Test vs. Clinical Assessment: Which One Do You Actually Need?
Online IQ tests and clinical assessments serve different purposes. This guide explains what each can and can't tell you, the real accuracy gap between them, and when you need a proper psychologist.
What Is a Good IQ Score? The Complete IQ Range Breakdown
"Is my IQ good?" is one of the most searched questions after taking any intelligence test. The answer depends on what you mean by "good" — and on understanding what the numbers actually represent.
Average IQ by Age: How Intelligence Changes Throughout Life
Does IQ go up or down as we age? The answer is more nuanced than a single number — different types of cognitive ability peak at different life stages, and modern IQ tests account for this.
IQ vs EQ: Which One Matters More for Success?
The popular claim that "EQ matters more than IQ" is a compelling idea — but the research tells a more complicated story. Here's what the evidence actually says about cognitive vs. emotional intelligence.
Spatial Reasoning Test: What It Measures and How to Improve
Spatial reasoning — the ability to visualise and manipulate shapes in your mind — is one of the most important and underappreciated cognitive skills. Here's what the tests measure and how to get better.
IQ Test for Adults: The Complete 2025 Guide
Adult IQ testing is different from childhood assessment in important ways — different norms, different cognitive priorities, and different interpretations. This 2025 guide covers everything you need to know before taking the test.
Mensa IQ Test: Score Requirements, Practice Questions & How to Join
Mensa is the world's largest high-IQ society — but what score do you actually need, which tests qualify, and how do online IQ tests compare to the official Mensa admission test?
10 IQ Test Questions With Answers — Sample Cognitive Questions Explained
What do IQ test questions actually look like? Here are 10 sample questions spanning every major cognitive domain — with full answers and explanations of the reasoning required.
What IQ Score Is Considered Genius? The Truth About High IQ
Is there a single IQ number that separates genius from the rest? Not exactly. Here's what research actually says about high IQ, what it predicts, and where "genius" fits on the scale.
What Is My IQ? 5 Ways to Find Out (Without Paying $500)
The most searched question in cognitive psychology: "What is my IQ?" Here are five practical ways to find out — free, paid, and everything in between — with honest guidance on what to trust.
IQ Score by Age: What's Normal for Kids, Teens, and Adults?
IQ scores are always relative to your age group — a 10-year-old scoring 100 and an adult scoring 100 are both at the exact same percentile. Here's what's "normal" at every stage of life.
How to Take an IQ Test Online: Tips, What to Expect & Where to Start
Thinking about taking an IQ test online? Here's exactly what to expect from a quality cognitive assessment — plus tips for getting your most accurate score and understanding your results.
Cognitive Assessment Tests: What They Are, Types & How They Work
Cognitive assessments are used in schools, clinics, workplaces, and research labs. Here's a clear breakdown of the different types, what each measures, and how to take a quality cognitive test online for free.
Is an IQ of 120 Good? What It Means and How Rare It Is
An IQ of 120 is well above average — in the "superior" range, around the 91st percentile. See what a 120 means and how rare it is.
How Long Does an IQ Test Take? Online vs. Professional
Most online IQ tests take 20 to 40 minutes, while a professional test like the WAIS runs 60 to 90. Here is what affects the time.
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