The test
From the first click to your report
About 20 minutes for 40 questions, with no sign-up to start. We only ask for your email at the end, to save your result.
- ~20 min
- taking the test is free
- not a consultation with a psychologist
How it works
Five steps, in this order
You start without an account
Open the test and start answering. If you close the tab halfway, your browser remembers where you stopped and offers to pick up from there.
You answer 40 questions
Six areas, with the difficulty rising gradually. The last 3 are about you: your age, your education and how you rate your own reasoning.
The scoring runs on the server
The correct answers never reach your browser. The server scores you with Item Response Theory and compares you with your age group.
You enter your email
That is what links the result to you. It is also where your login link to the member area arrives, no password needed, on any device.
Your report opens
Your estimated IQ with a 95% range, the 6 areas, one worked question from each area, a certificate and a PDF. The full report is part of the subscription, and the renewal terms are in the Terms, linked right below the payment box.
- 40questions
- 37count toward the estimate
- 6reasoning areas
- 95%confidence in the range
On this page
01What you'll answer
There are 40 questions, and 37 count toward the estimate: 34 reasoning questions and 3 memory recall tasks. The other 3 are about you. Your age changes the comparison; your education and self-rating do not change the number.
There is no time limit per question. The timer at the top shows only the total time and doesn't affect your score: it is there to catch answers given too fast to have been read.
Matrices · 10
Find the rule behind a grid of figures. See the area
Series · 5
Continue a sequence of numbers or letters. See the area
Rotation · 5
Recognize the same piece after it has been rotated. See the area
Logic · 5
Draw valid conclusions from premises. See the area
Verbal reasoning · 5
Relationships between words and ideas. See the area
Memory · 7
Hold and use information for a few seconds. See the area
02How the number is calculated
The score is not the percentage of correct answers. Each question has a known difficulty, and your ability is the value that best explains your pattern of right and wrong answers. That's why getting a hard question right is worth more than getting an easy one right, and guessing doesn't produce a high number.
That value is then placed on the usual IQ scale, with a mean of 100 and a standard deviation of 15, comparing you with your age group. Today's norms are provisional and will be recalculated with real responses. The details are in Method.
Example: estimated IQ 110, likely range 101 to 119, with 95% confidence.
03So the result reflects you
- Pick a time when you are not in a hurry. Fatigue and distraction change the result of any test.
- Read each question all the way through. Answers given too fast get the result flagged as unreliable.
- Answer in your head, without paper, a calculator or help from anyone else: with help, the number ends up measuring something else.
- If something goes wrong, retaking an unreliable result is free.
04What the test is not
It's an educational reasoning test. The result is an estimate, taken once, online and unsupervised, which is why it comes with the margin of error in plain view.
An educational estimate of reasoning. It is not a consultation with a psychologist and should not be used for employment, school or health decisions. In Brazil, psychological intelligence tests may be used only by psychologists (Law 4.119/1962 and Federal Council of Psychology Resolution No. 31/2022).
Where to next
Questions
Questions about the process
Do I need to create an account to start?
No. You answer without signing up. We only ask for your email at the end, to save your result and send you the login link.
How long does it take?
About 20 minutes. There's no time limit per question; the timer only shows the total time.
Can I take it on my phone?
Yes. The test, the report and the member area work on phones and computers, with the same email.
Do I have to pay to take the test?
Taking the test is free. The full report is part of a subscription with 7 days of access that you can cancel anytime, in 2 clicks. The renewal terms are in the Terms, linked right below the payment box.
Welcome
Today's practice: 10 items, about 8 minutes.
Estimated IQ
110
likely range 101 to 119 (95% confidence)
Your certificate
IQNorthCertificate of resultYour name hereEstimated IQ110likely range 101 to 119 (95% confidence)
sample
Today's practice
All gamesYour week
Tests about you
Sample test · 37 questions count
Download PDFReasoning report
Estimated IQ
110
Likely range: 101 to 119 (95% confidence)
What the number means
Your result, 110, falls in the “high average” range. On the theoretical IQ curve (mean 100, standard deviation 15), this score is above about 75% of the population. The most likely value is between 101 and 119.
By area
Correct answers in each type of question. Areas with few questions vary more, so read them as a trend.
- Verbal reasoning4 of 5
- Logic4 of 5
- Number series4 of 5
- Working memory5 of 7
- Matrices7 of 10
- Spatial rotation3 of 5
Certificate
How it will appear on the certificate. After you confirm, you can correct it once within 24 hours.
Apply
IQNorthCertificate of resultYour name hereEstimated IQ110likely range 101 to 119 (95% confidence)
sample
This is an educational reasoning test. The result is an estimate, with a margin of error, not a verdict or a consultation with a psychologist. It does not replace a consultation with a psychologist and must not be used for job or school selection or for any decision about you.
Download Share10 items a day, at the difficulty of your level.
Today's practice
Practice nowSee the last 28 days
Your level
Practice level by area
- Matriceslevel 3
- Number serieslevel 4
- Spatial rotationlevel 2
- Logiclevel 3
- Verbal reasoninglevel 4
- Working memorylevel 3
The training level (1 to 5) shows the difficulty you're practicing. It is not IQ.
Your tests
1st test · sample110 (101–119)
Each dot is one test, with its 95% range. Differences smaller than ~18 points are within chance and the effect of already knowing the format.
Short memory and logic games. Your best score is saved on this device.
Questionnaires about you. They don't measure ability.
They are not a consultation with a psychologist or a verdict.
Describe yourself as you generally are now, not as you wish to be. Think of yourself compared with other people you know who are about the same age. There are no right or wrong answers.
Statement 1 of 50
I am the life of the party.
Doesn't describe me at all Describes me a little Neither yes nor no Describes me well Describes me very wellana@example.com
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Ready to see how you reason?
Start now. At the end, your estimated IQ with the 95% range stays in your member area.
Start the testTaking the test is free · IQNorth is an educational reasoning test: the result is an estimate, with a margin of error, for personal and educational use.