IIF Certified Assessment
Start IQ Test
IIF Certified Assessment
A short, strictly timed IQ test that measures how you reason when you cannot take your time. Same four domains as the full-length test, a fraction of the length — and an estimate that is honest about what it gives up for speed.
Fewer questions means more statistical noise. This test places you in the right region of the scale quickly; it will not pin down a single number. If precision is what you want, the Classical IQ Test runs longer and produces a steadier estimate.
It begins on the first question, not on the instructions. Read those before you start.
A useful pace, not a rule. Some items take five seconds; some are worth a little longer.
Blanks earn nothing and wrong answers cost nothing, so an unsure answer always beats none.
The test closes at the cap and scores whatever you completed. Your estimate appears at once.
The same four domains and the same scale. The difference is how much evidence each one collects before it commits to a number.
This is the interface you will see, with the clock running. Pick an answer to find out whether you were right — the real test tells you nothing until the end. Nothing here is scored.
3, 6, 12, 24, ?
✓ Correct — Each term doubles the one before it, so the next is 48.
Not quite — the answer is B. Each term doubles the one before it, so the next is 48.
Which one does not belong with the others?
✓ Correct — Flight is the distraction. A bat is a mammal; the other three are birds.
Not quite — the answer is C. Flight is the distraction. A bat is a mammal; the other three are birds.
Which figure comes next?
✓ Correct — Each step is a quarter turn clockwise: up, right, down, then left.
Not quite — the answer is A. Each step is a quarter turn clockwise: up, right, down, then left.
2, 5, 11, 23, ?
✓ Correct — Each term doubles and adds one: 2→5→11→23→47.
Not quite — the answer is C. Each term doubles and adds one: 2→5→11→23→47.
Bird is to Nest as Bee is to …
✓ Correct — The pairing is animal to the structure it lives in. Honey is a product, a flower is a destination, a wing is a body part.
Not quite — the answer is A. The pairing is animal to the structure it lives in. Honey is a product, a flower is a destination, a wing is a body part.
Which option is the mirror image of this shape?
✓ Correct — A reflection reverses handedness; a rotation never does. B is the flip. A and D are rotations and C is untouched.
Not quite — the answer is B. A reflection reverses handedness; a rotation never does. B is the flip. A and D are rotations and C is untouched.
Which tile belongs in the empty cell?
✓ Correct — The dot steps one corner clockwise across each row, and each row starts one step further along.
Not quite — the answer is B. The dot steps one corner clockwise across each row, and each row starts one step further along.
81, 27, 9, ?
✓ Correct — Each term is the one before it divided by three.
Not quite — the answer is C. Each term is the one before it divided by three.
Which one does not belong with the others?
✓ Correct — The first three are metals. Plastic is synthetic and is not.
Not quite — the answer is D. The first three are metals. Plastic is synthetic and is not.
Which option is the same shape, only rotated?
✓ Correct — A and C are mirror images, which no amount of turning undoes. D is a different five-block shape. Only B is the prompt turned a quarter.
Not quite — the answer is B. A and C are mirror images, which no amount of turning undoes. D is a different five-block shape. Only B is the prompt turned a quarter.
A short test cannot narrow you to a single point, and it is more useful to see the band it can actually defend. Here is the same score reported by both formats.
Both bands describe the same ability. The wider one is simply what ten minutes of evidence can support — read the region, not the number.
Illustrative figures shown to demonstrate the layout. Scores use the standard scale, mean 100 and standard deviation 15.
~15–18 questions · 10 minutes, capped · instant results
There is no penalty for a wrong answer, so a guess is always better than a blank. Never leave an item empty to save time.
If an item resists you after about half a minute, take your best guess and move on. One hard question can eat the time of four easy ones.
Ten minutes without interruption. A single distraction costs more here than it would on a longer, untimed test.
This is a screening measure, not a clinical assessment. It is not a diagnosis and is not suitable for academic or employment decisions.
Leaving the page, losing your connection or switching tabs doesn’t stop the timer. Make sure you can finish in one uninterrupted sitting before you begin.
A keyboard and screen size you’re used to beats an unfamiliar phone or a shared computer — under a hard clock, fumbling with the interface costs real seconds.
It gives a reliable directional estimate — enough to know roughly where you stand. But fewer questions means more statistical noise, so the margin of error is wider than on a full-length test. If precision matters to you, the Classical IQ Test produces a more stable result.
Any unanswered questions are scored as blank. You are not penalised for them, but you do not get credit either. Most people finish comfortably as long as they do not get stuck overthinking a single item. Our IQ Test Accuracy page covers how this affects your margin of error.
No. The timed format locks each answer as you move forward. That is deliberate — this test is measuring how you reason under time pressure, and being able to revisit items would change what is being measured. See How IQ Tests Work for more on why format design matters.
The same standardised scoring engine is used — your raw performance is compared against a norm group and mapped onto the standard scale, mean 100 and standard deviation 15. Fewer items just means a wider band around that number. Our IQ Bell Curve page shows how a score maps onto that distribution.
Both use the same scale, so the numbers are directly comparable, but the Timed result carries a wider margin of error — treat a gap of a few points between the two as expected rather than a real change in ability. Our IQ Comparison tool shows how scores sit against different reference groups.
Yes — like every format, your raw performance is compared against an age-matched norm group, and processing speed in particular shifts across the lifespan, which matters more under a hard clock than on an untimed test. Our IQ and Age tool breaks down how that adjustment works.
Close, but not identical — and if your first score was unusually high or low, expect it to drift back toward your average on a retest rather than repeat exactly. That’s a normal statistical pattern, not a sign the first result was wrong. See our Regression to the Mean page for why this happens.
Not currently — the timed format is built for adults. If you’re testing a child, use the Kids IQ Test instead, which applies age-specific norms across bands from 4 to 17 rather than a hard adult time cap.
That’s what the Classical format is for — same four domains, no clock, and a narrower margin of error since it collects more evidence per domain. Our IQ Tests hub compares every format side by side if you’re still deciding.
Time pressure is part of what this format deliberately measures, but acute stress beyond that can still reduce working memory and processing speed independent of your underlying ability. Our Can You Improve Your IQ page covers what factors like this actually affect versus what they don’t.
Take the full-length version for a steadier number, isolate one domain, or read how the scoring works.
