IRT/RASCH CALIBRATED · ±3 IQ POINT PRECISION

Adaptive IQ Test

Intelligenstest kalibrerat med Rasch-modellen. Precision target ±3 IQ points — the test stops automatically when convergence is reached.

Beta · Free certificate, no payment · No account required

12–28

questions per test

±3

IQ point precision

5 min

genomsnittstid

Free

to take

METHODOLOGY

Why IRT/Rasch?

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Adaptiv algoritm

Each question is selected using Maximum Fisher Information. Difficulty adjusts in real time based on your answers.

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Precision target ±3

The test continuously measures standard error (SE). When SE < 3 IQ points, the test ends automatically.

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Konvergensgraf

Watch your IQ estimate stabilize in real time. The 95% confidence band shrinks with each answer.

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5 cognitive domains

Logic, numeracy, pattern recognition, spatial ability, and verbal ability — with a breakdown in the result.

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Rasch-kalibrerat

Questions have calibrated b-values (70-145). IQ is calculated with Newton-Raphson MLE, not percent-correct scoring.

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Free beta certificate

Beta certificate with IQ estimate, confidence interval, and percentile. Free during beta.

IQ SCALE

Where do you land?

145+

Exceptionally gifted

0.1%

130–144

Highly gifted

120–129

Superior intelligence

110–119

Above-average intelligence

16%

90–109

Average range

50%

80–89

Low-average range

16%

70–79

Below average

Normal distribution · Mean = 100 · SD = 15

Frequently asked questions

How accurate is the test?

How is this different from other online IQ tests?

Will the result be the same every time?

What does the certificate cost?

How long does the test take?

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Ready to discover your IQ?

12-28 adaptive questions · Real-time estimation · Free beta certificate

No account required · No personal data