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How this worksWhat Is an IQ Test?
An IQ (Intelligence Quotient) test is a standardised assessment that measures cognitive abilities including pattern recognition, logical reasoning, spatial ability, verbal comprehension, and working memory. According to the Wechsler Adult Intelligence Scale (WAIS-IV), the average IQ score is 100, with approximately 68% of the population scoring between 85 and 115. Each 15-point increment represents one standard deviation from the mean.
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All guides
Plain explanations of how IQ scores work, what the common question formats are testing, and the psychology behind the assessments on this site. Each guide maps to one of the nine tests, so you can read first and take the test after.
- Are Online IQ Tests Accurate?
- IQ Percentile Chart: What Your Score Actually Ranks
- How to Prepare for an IQ Test
- What IQ Score Do You Need for Mensa?
- Signs of High Intelligence (And the Myths)
- Matrix Reasoning Questions Explained
- Number Sequence Puzzles: How to Solve Them
- What Is a Good EQ Score?
- The Big Five Personality Traits Explained
- The Four Attachment Styles Explained
- What Is Financial Literacy?
- Career Aptitude vs IQ: What Predicts What
Frequently Asked Questions About IQ Tests
Everything you need to know about taking an IQ test online.
An IQ (Intelligence Quotient) test is a standardised assessment designed to measure human cognitive abilities and intellectual potential. IQ tests evaluate pattern recognition, logical reasoning, spatial ability, verbal comprehension, and working memory. The average IQ score is 100, with most people scoring between 85 and 115.
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The existing timed assessments use a limited question bank and a site-defined scoring curve. Their IQ-style numbers and percentile displays are illustrative estimates, not norms established from a representative validation study. We have not established clinical validity for these assessments.
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General IQ Test, Financial IQ Test, Emotional Intelligence (EQ) Test, Logical Reasoning Test, Fashion IQ Test, Grammar & Vocabulary Test, Personality Type Test, Love Style Test, Career Path Test. Free learning lab and guides.
This is an illustrative score from this assessment, not a clinically validated IQ result.
When you take an assessment, the site processes your answers, completion time and result to show feedback. If you request a certificate or emailed result, the name, email address, assessment result and payment reference you provide are used to prepare and deliver it. Do not include sensitive personal information in a certificate name. Free learning lab and guides.
The existing timed assessments use a limited question bank and a site-defined scoring curve. Their IQ-style numbers and percentile displays are illustrative estimates, not norms established from a representative validation study. We have not established clinical validity for these assessments.
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This is an illustrative score from this assessment, not a clinically validated IQ result.
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This is an illustrative score from this assessment, not a clinically validated IQ result. Our approach.