IQTests is an independent project with one job: give you an honest, research-grounded estimate of how you reason, and tell you plainly what that number does and does not mean. No certificate to buy, no membership to join, no forty-page report locked behind a card form. This page explains who is behind the site, why it exists, and the standards we hold ourselves to.
Our mission
The web is flooded with "IQ tests" thrown together in an afternoon with no scientific basis, and it is genuinely hard for a visitor to tell a validated instrument from a quiz that hands out a random flattering number. We built IQTests to sit in the gap between the two: a test that is free and quick to take, yet built on a recognized research framework and reported honestly. Our items are modeled on the International Cognitive Ability Resource (ICAR), a public-domain pool whose problems have been validated against full-length instruments, and we score on the standard deviation-IQ scale. Our goal is to help you understand yourself a little better while being straight about the limits of any ten-minute online measure. That commitment to transparency is why we publish our full methodology rather than asking you to take the result on trust.
Our story
The project started from a simple frustration: most online IQ tests give you a number and not a single word about how it was produced. It seemed obvious that people deserved both, the score and the reasoning behind it, so the first version paired a research-based test with a plain-language account of the scoring. Since then the work has been less about adding features and more about getting the fundamentals right: selecting solid items, monitoring how they perform, and refreshing the norms so a percentile stays meaningful rather than slowly drifting out of date. The result today is a focused, single-purpose site that does one thing and tries to do it honestly.
The team
The test and the explainers around it are led by Marcus Hale, a psychometrics specialist with more than a decade in cognitive measurement, who owns the items, the scoring, and the norms. He is a specialist in measurement, not a licensed clinician, and that distinction runs through everything here: an online test is an estimate, never a clinical assessment, and we say so on every result. Claims are checked by an editorial process before they go live, and when the underlying research moves, the pages get revisited, which is why each one carries a review date you can see. There is more on the person who maintains the test on the author page.
Our values
- Science over intuition. Tests are built on peer-reviewed research and recognized models, not on a designer's hunch, and we state the basis of the test rather than asking for faith. The full account is on our methodology page.
- Honesty about limits. We say openly where a result is only an estimate, we report the margin of error, and we never promise a "precise" or "certified" intelligence. Where a measure is weaker, we tell you so instead of hiding it.
- Transparency. We publish exactly how a score is calculated on our how we score page, and we are open about how the site is funded in our advertising disclosure.
- Care for the reader. A score touches how people see themselves, so we never use a result to pressure or sell, and we point anyone unsettled by a number toward real support on our disclaimer & responsible use page.
How we work
Every test follows the same path from idea to published instrument. We start by settling the scientific foundation and selecting validated items from the ICAR pool rather than inventing our own. We then monitor how each item performs on real responses, watching difficulty and how well it tracks the overall score, and we retire items that stop pulling their weight. We assess reliability with coefficients in the Cronbach's alpha family, and we check that the scores behave the way theory predicts before anything is trusted. Finally we norm the results, converting a raw count into a percentile and a deviation-IQ score, and we recompute those norms as data accumulates so they do not go stale. The standards governing all of this, including how we fact-check and correct mistakes, are written out in our editorial policy.
Contact us
We are glad to hear from readers, whether you have a question about a result, a correction to an item, or just feedback on the test. The fastest route is our contact page, which reaches a real person, and the best way to understand any of this is still to take the free test and watch it play out: about ten minutes, and a full breakdown across four reasoning domains at the end.