FAQ
How accurate is your test?
The list of questions for our IQ test was developed using items inspired by the widely recognized Raven's Progressive Matrices and the Cattell Culture Fair Intelligence Test. First, a pilot group of 200 participants attempted the questions. Only those that at least 5% of the group could solve were retained. From this process, 40 questions were selected based on difficulty.
These questions were then administered to a larger, more diverse group of 2,050 people aged 18 to 55, representing different countries and educational backgrounds. Based on the results, we established the IQ scale, the final difficulty level of each question, and the average time required to solve them. Our test follows the standard IQ convention with a standard deviation of σ = 15. This means that approximately two-thirds of participants score within the average IQ range. In practice, your result on this test will not differ by more than 5–6 points from the outcome of a classic IQ test. However, please note that external factors or personal stress can still influence your score.
How much time is given to take the test?
We do not limit the time users may have to complete the test. The recommended time for completing the test is 20-40 minutes. Taking longer than this to complete the test may affect your results.
I lost my test result, how can I find and recover them?
If the result is lost, go to the "Get an IQ result" page and enter your email. You will receive your results by email again.
Can I take the test again?
Yes. When you retake the test, the previous results will be overwritten. However, new test results are not taken into account in the world ranking and are not displayed on the results board.
To save multiple results, use different emails.
Is the test suitable for children?
Yes. For children under 18, results are age-normed, meaning scores are compared only with peers of the same age group.
Do I need special preparation for the test?
No preparation is required. The test is designed to measure reasoning skills, not learned knowledge. However, being rested and focused helps ensure accurate results.