About the IQ Test
methodology, categories, interpretation
A page for those who want to understand how our test works — what tasks it contains, how we calculate the result and how to interpret it.
Το αποτέλεσμα του τεστ είναι ενδεικτικό και εξυπηρετεί μόνο εκπαιδευτικούς και ψυχαγωγικούς σκοπούς. Δεν έχει διαγνωστική, κλινική, εκπαιδευτική ή νομική σημασία.
1. Test methodology
Our test primarily measures fluid intelligence — the ability to solve novel problems without relying on previously acquired knowledge. This is a psychometric construct described by Raymond Cattell, for which non-verbal and abstract tasks work best.
The test comes in three length versions; we don't change the proportions of task categories between them — only the number of items. Questions in each version are ordered from easiest (difficulty 1/10) to hardest (difficulty 6-8/10), with progression typical of psychometric tests.
All tasks are original — we created them ourselves, drawing on general types of tasks used in psychometrics (pattern matrices, number sequences, syllogisms), but without copying any specific question from existing, copyright-protected tests.
2. Task categories
The test includes five categories of tasks:
A 3×3 grid with a missing cell in the bottom-right corner. Your task is to recognise the pattern rule (rotation, shape distribution, progression, XOR of lines) and choose the completing element.
A single sequence of 4-5 figures with a missing element at the end. Rules include rotation, alternating fill, progression in the number of elements.
Five figures, one of which doesn't fit the rest with respect to some essential property (symmetry, regularity, number of sides).
Sequences of numbers with hidden mathematical rules: arithmetic, geometric, squares, cubes, Fibonacci, primes, factorials and more complex recursive rules.
Word problems requiring step-by-step reasoning: syllogisms, speed-and-time problems, set problems, logical paradoxes.
3. How we calculate the IQ score
The score is calculated in three steps:
- We calculate the percentage of correct answers (correct ÷ total questions × 100%).
- We map that percentage to an indicative IQ score using our calibration table. The table assumes that the average online test-taker is slightly above average — a typical 50% correct answers corresponds to IQ ≈ 100.
- From the IQ score we derive the population percentile assuming a normal distribution (M = 100, SD = 15).
Important disclaimer: our calibration table was not built on a representative random sample of the population (which a professional test would require), but on theoretical assumptions. Treat the result as indicative, not as a diagnostic measurement.
4. IQ scale and percentiles
| IQ range | Label | Percentile | Frequency |
|---|---|---|---|
| < 70 | Well below average | < 2.3 | ~2% |
| 70-84 | Below average | 2.3-15.9 | ~14% |
| 85-115 | Average (norm) | 15.9-84.1 | ~68% |
| 116-129 | Above average | 84.1-97.7 | ~14% |
| 130-144 | High (Mensa threshold) | 97.7-99.9 | ~2% |
| 145+ | Exceptional | > 99.9 | < 0.1% |
5. Online test limitations
Bear in mind that an online test — regardless of question quality — has significant limitations compared to a professional psychological assessment:
- No standardisation — professional tests are standardised on samples of several thousand people from a given population
- No supervision — we don't know whether you used help, hints or a calculator
- No environment control — it may be too loud, too bright, too cold
- Single trial — professional tests involve several trials with different tasks
- No multi-domain assessment — WAIS-IV has 15 subtests assessing different aspects of intelligence
6. How to achieve your best score
Practical tips so your result best reflects your real abilities:
- Get enough sleep — sleep deprivation lowers results by up to 10-15 points
- Choose a quiet place — no music, no notifications, no people nearby
- Turn off your phone — full concentration for the whole 8-35 minutes
- Don't rush — most questions take about 1 minute to solve
- Read carefully — many errors come from misreading the question, not from lack of intelligence
- Don't skip questions — guessing is better than leaving blank
- Drink water — dehydration lowers cognitive performance
Questions about Mensa and our test
If you're looking for the official Mensa test — we explain the differences.
Is CogniveraIQ an official Mensa test?+
No. CogniveraIQ is an independent educational and entertainment service and is NOT affiliated with Mensa International Ltd. or any national Mensa organisation. Our test does not qualify you for Mensa membership. To take an official Mensa test, visit mensa.org and find your local Mensa organisation.
What is Mensa and who can join?+
Mensa International is a global high-IQ society founded in 1946. The entry threshold is a score in the top 2% of the general population on an authorised psychometric test (typically equivalent to IQ 130 on the Wechsler scale). To become a member, you must take a test administered by an accredited psychologist from a local Mensa organisation.
What does the official Mensa test look like?+
The official Mensa test is a supervised session conducted by an accredited psychologist. It usually lasts 1–2 hours and includes tasks measuring abstract, verbal and numerical reasoning. National Mensa organisations handle this — find yours on mensa.org.
How does our test differ from the official Mensa test?+
Our test is for educational and entertainment purposes. It consists of 12–36 psychometric-style questions, is free, and can be taken online at any time. It is not supervised by a psychologist, lacks the standardisation required by IQ test organisations, and the result has no diagnostic or qualifying value. It's a tool for orientational self-check, not a substitute for professional assessment.
Can I use the CogniveraIQ result to join Mensa?+
No. Only results from tests administered by accredited Mensa psychologists are accepted for membership. Our test can be a signal of whether it's worth considering taking the official test — but the score itself has no formal authority.
Where can I sign up for the official Mensa test?+
On mensa.org you'll find the list of national Mensa organisations. Each organisation has its own test schedule — details, dates and fees are on their official site.