IQ articles
Plain-language guides to IQ scores, percentiles, and how to read online test results — built around the UniversalIQTest.com dataset of 330,000+ results.
On the standard IQ scale — average 100, standard deviation 15 — most scores between 85 and 115 are considered average, while 130+ places a result in the top 2%.
Country-level average IQ figures are interesting, but they only make sense when you look at sample sizes, sampling methods, and the huge variation inside every country.
A well-designed online test can estimate fluid reasoning quite well, but it is not a clinical assessment. The question quality, the scoring method, and the testing conditions all shape your result.
A percentile tells you what share of people you scored above — a 125 IQ is roughly the 95th percentile, meaning you outperformed about 95% of the reference group.
Forty reasoning questions, scored against a live dataset of 330,000+ submissions — here is how the format works and why it is built this way.