How Testrize scores your IQ test

A simple online quiz counts how many answers you got right. Testrize does not. Every question carries a difficulty weight, so getting a hard item right counts for more than an easy one, and your weighted accuracy feeds a deterministic model anchored at 100 (the population average by convention). Your response time is factored in as well, because how quickly you work is part of how you reason. The result is a single estimate plus the profile below, computed client-side with no server round-trip, which is why your result is instant.

You do not just get a number. Each question maps to one or more cognitive domains, and your result breaks down across six of them:

• Logical reasoning - working through structured problems step by step.
• Pattern recognition - spotting the rule behind a sequence.
• Spatial reasoning - manipulating shapes and space mentally.
• Verbal comprehension - understanding and relating language.
• Working memory - holding and using information in the moment.
• Processing speed - how quickly and accurately you work, derived from timing.

You see your stronger areas and your weaker ones, which is far more useful than a lone score for understanding how you actually think.

For every question we capture the answer, whether it was correct, and how long it took. That item-level detail is what makes the profile possible, and it means your result reflects how you engaged with the test, your speed and focus, not just the final tally.

This matters as much as the method, and most online tests will not tell you:

• It is not a clinical or diagnostic IQ test. It is an educational estimate of cognitive skills.
• It is not validated against a clinical gold standard such as the WAIS or Stanford-Binet, so we publish no single accuracy percentage. A number we cannot stand behind is worse than no number.
• It is not adaptive. Everyone takes the same fixed question set; we do not adjust difficulty live.
• It is built to get more accurate over time as real, anonymized response data accumulates, which is why we capture data at the item level. We say "built to calibrate," never "calibrated."

For context, not as a claim about ours: research shows well-designed online cognitive tests can correlate strongly with clinical instruments like the WAIS and Stanford-Binet. That is a general fact about the field, not a measured Testrize result. The honest way to read any online score, including this one, is as a useful estimate and a mirror for self-insight, not a clinical verdict.

Your responses are stored privately and are not publicly readable. Results are also saved to your device so you can return to them. No fake reviews, no inflated accuracy numbers, and no invented experts sit behind any of this, the model and its limits are exactly as described here.