How IQMog scores your IQ test

What is the IQMog test?

The IQMog test is a fixed form of 20 matrix-reasoning items, the same item type used in Raven’s Progressive Matrices. Each item shows a 3×3 grid of shapes with one cell missing. You pick the one of four answer choices that completes the pattern.

Everyone gets the same 20 items. The questions don’t change based on your answers; only the order of the answer choices is shuffled for each session. The items were generated with RAVEN-FAIR, an open-source matrix generator published at CVPR 2021 and released under the MIT licence.

There is no strict time limit. Most people finish in about 10 minutes, and accuracy counts, not speed. You need to answer all 20 items before you can submit.

How is my score calculated?

When you submit, your answers go to our server, which compares them with the answer key. The key is never sent to your browser, so the score can’t be read or changed on your device.

Your raw score is the number of correct answers, from 0 to 20. It is turned into a z-score with z = (correct − 10) ÷ 5 and then into an IQ estimate with IQ = 100 + 15 × z. In practice, every correct answer moves the estimate by 3 points: 0 correct gives 70, 10 correct gives 100 and 20 correct gives 130. Your percentile is read from the normal distribution for that z-score.

The server also records how long the attempt took. Attempts finished in under 40 seconds are flagged as rushed.

What is my score compared against?

The scale assumes that an average test taker gets 10 of the 20 items right, with a standard deviation of 5 correct answers. This reference is fixed in our scoring code under the version name external-raven-fair-v1-frozen, so the same answers always get the same score.

This reference is an assumed norm, not one measured on a representative sample of people. Your percentile is therefore your position on the standard IQ curve (mean 100, SD 15) for your estimate.

How precise is the score?

Every test score carries measurement error, so IQMog gives you a range as well as a number. To compute it, scoring uses a reliability value of 0.82. That gives a standard error of measurement of about 6.4 IQ points and a 95% range of about ±12 points around your estimate.

The 0.82 is an assumed value fixed in our scoring code, not a reliability coefficient we have measured on IQMog test takers.

What does the $4.99 report include?

Taking the test is free. After you finish, you see a locked preview. Paying $4.99 once opens the full report for that test session. The price includes VAT or sales tax and is charged through Polar, our payment provider: in euros (€4.99) for visitors in the euro area, in US dollars everywhere else.

• Your exact IQ estimate with its 95% range
• Your percentile position
• Your number of correct answers and your timing
• A plain-language explanation of what the result means
• A downloadable report, and return access through the email address you enter at checkout

Can I get a refund?

Our Terms of Use (section 5) say: “Paid features are optional and pricing is shown before checkout.” and “Taxes, billing terms, and refund rules (if any) may vary by region and payment provider terms.”

Questions about a charge go to support@iqmog.com.

What happens to my data?

We store what the service needs to work: your onboarding answers (such as your first name), your test answers and timing, your result, and the purchase details needed to open your report and restore access. The email you enter at checkout is used for your receipt and for return access.

• We do not sell personal data.
• Card details are handled by Polar. IQMog never stores your card details.
• Our product analytics record that you answered a question, not which answer you chose.
• You can ask us to delete the data linked to your purchase email by writing to support@iqmog.com.

What is IQMog for?

IQMog gives you a fast, clear estimate of your matrix-reasoning performance, with every step of the scoring published so you can check it.

• Use it to see where you stand. For a diagnosis, the right tool is a clinically administered test. For employment decisions, use an assessment validated for the specific job and purpose.
• Use it before you book Mensa’s supervised test. Mensa branches admit on supervised testing or approved prior evidence.
• Pay once. There is no subscription, and nothing renews.
• Take it once, cold, for the cleanest read. The form is fixed, so a higher score on a retake mostly reflects familiarity with the items.