Reasoning Assessment
24 items across logical, numerical, pattern and spatial reasoning — returning an estimated IQ RANGE, for information only.
About this assessment
The assessment is 24 items spread evenly across four reasoning families and three difficulty bands, drawn from a much larger bank against a fixed blueprint. That blueprint is what makes a retake meaningful: you get DIFFERENT questions but the identical structure — never easier, never harder — so two attempts are directly comparable. The result is reported as an estimated range plus a per-family breakdown rather than a single number, and it is not a substitute for any formal psychological assessment.
Method
- Fixed blueprint: 4 reasoning families × 3 difficulty bands × 2 items = 24 questions. Items are drawn by a seeded, controlled random process, so every attempt can be reproduced exactly.
- Scoring is weighted by difficulty (easy 1 · medium 1.5 · hard 2), then mapped onto the familiar mean-100 / SD-15 scale through an anchor table published openly in the source.
- This is NOT a standardised or clinically validated IQ test. No population norming sample stands behind the number; the result reflects only how you did on these 24 specific items.
- Every attempt stores the test, question-bank and scoring versions it ran under. A historical result keeps the figures it was scored with and is never recomputed under a newer algorithm.
This is an online reasoning assessment. It is not normed against a population sample and it is not clinically validated. The figure shown is an estimated RANGE, mapped from how you did on these 24 specific items through a publicly documented anchor table. Results move a great deal with tiredness, interruptions and familiarity with the format, and they are not a substitute for any professional psychological assessment.
Frequently asked questions
Is this an official IQ test?
No. This is not a standardised or clinically validated IQ test, and no population norming sample stands behind the number. The result reflects only how you did on the 24 specific items you were served, and it is not a substitute for any formal psychological assessment.
What does the assessment cover, and how long does it take?
24 questions spread evenly across four families — logical reasoning, numerical reasoning, pattern recognition and spatial reasoning — 6 each, across three difficulty bands. It takes roughly 21 minutes, and you can stop partway and come back: your progress is kept in your own browser.
How is the score calculated?
Each correct answer is weighted by difficulty (easy 1 · medium 1.5 · hard 2). The weighted total is mapped onto the familiar mean-100 / SD-15 scale through an anchor table published openly in the source, and reported as a RANGE rather than a single number — alongside a per-family breakdown.
Why is the result a range instead of a single number?
Because 24 items are not enough to pin down a point value. A range states the confidence this assessment actually has; a single number would imply a precision it never earns. Read it as "this attempt lands around here", not "your IQ is exactly this".
Does retaking the assessment make it easier?
No. The 24 items are drawn from a 240-item bank against a fixed blueprint, so each attempt gives you DIFFERENT questions with the identical structure — never easier, never harder. The selector also remembers which items you have already seen and prefers unseen ones, which is what keeps two attempts comparable.
Is it free, and do I need an account?
It is free, with no ads and no cap on retakes. You do not need an account to take it or to see your result — the assessment is scored in your browser. Signing in is only needed if you want to SAVE a result so you can revisit it and compare attempts over time.
What happens to my answers?
While you are taking it, the attempt lives in your own browser's local storage. If you are not signed in, it never leaves your device. If you choose to save it, that attempt is submitted and re-scored server-side, stored against your account and visible only to you — the result pages are not indexed and are never public.
Are old results recalculated when the scoring changes?
No. Every attempt is stored with the test, question-bank and scoring versions it ran under. A historical result keeps the figures it was scored with on the day and is never recomputed under a newer algorithm.