How should you compare online IQ tests?
Judge an online IQ test on four things it either publishes or hides: the size of its norming sample, its reliability figures, what the price actually buys, and what happens to your data. Sites that publish none of these cannot support the score they show you.
| What to check | Testora IQ | Typical free IQ test site |
|---|---|---|
| Normative sample | 18,400 adults, published | Not stated |
| Reliability figures | Alpha 0.91, retest 0.86 | Not stated |
| Confidence interval | ±4 points reported with every score | Single exact number |
| Score visibility | Score and percentile free | Score locked behind payment |
| Pricing | One-time $19 report, no subscription | Recurring subscription common |
| Domain breakdown | Five domains reported separately | Overall score only |
| Data handling | Never sold; deletion on request | Often unclear |
Warning signs of a low-quality IQ test
Most complaints about online IQ testing trace back to the same handful of practices.
- Your score is hidden until you enter card details.
- A one-off payment silently enrols you in a subscription.
- The score is presented as an exact truth with no error range.
- No named reviewer, methodology page or contact details.
- Results claim clinical or employment validity a screening test cannot have.
Where Testora IQ deliberately sets limits
The Testora IQ test is a validated screening assessment, not a supervised clinical evaluation, and we say so in every report. It should not be the sole basis for hiring, educational placement or medical decisions.
Being explicit about that boundary is what separates a science-based IQ test from an entertainment quiz with a number at the end.