CERTIFIED IQ TEST
The real IQ test. No fluff.
40 questions. 4 domains: verbal, math, spatial, logic. About 15 minutes. You get a real IQ score on the standard 100-mean / 15-SD scale, your global percentile, and your performance broken down by domain.
40
questions across 4 cognitive domains
~15 min
typical completion time
100
population mean · standard deviation 15
No fluff
real scoring · real percentile · real breakdown
VERBAL
Vocabulary, analogies, definitions
MATH
Arithmetic, sequences, word problems
SPATIAL
Rotation, geometry, mental imagery
LOGIC
Deduction, syllogisms, tricky reasoning
The IQ Scale
Standardized: mean 100, standard deviation 15. Same scale used by Wechsler (WAIS) and Stanford-Binet since 1955.
< 70Very Low · ~2%
70–84Below Average · ~14%
85–114Average · 68%
115–129Above Average · 14%
130–144Genius · top 2%
145+Sovereign · top 0.1%
How your score is calculated
- Difficulty-weighted scoring. Each question has a level 1–6. Hard questions are worth more than easy ones — getting a level-6 right means more than ten level-1s.
- Per-domain balance. Verbal, math, spatial, and logic each contribute equally. A genius in math but weak in verbal scores below someone balanced across all four.
- Normal-curve mapping. Your difficulty-weighted percentage is mapped to an IQ score using a calibrated curve: ~30% correct ≈ IQ 85, ~50% ≈ IQ 100, ~75% ≈ IQ 120, ~90% ≈ IQ 135+.
- Speed bonus. Finishing well under the time budget adds up to +3 IQ. No penalty for taking the full time.
- Percentile. Computed against the standard normal distribution (mean 100, SD 15), capped at 1st–99th.
Caveats this test makes no apology for. IQ is one cognitive snapshot. It correlates with school/work performance but doesn't measure creativity, emotional intelligence, or wisdom. This score is calibrated for entertainment + self-knowledge, not Mensa admission or clinical assessment.