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Findings from 3,834 online IQ tests, free to quote with a link to the source, and a direct line for data requests and comment.
What 3,834 online IQ tests show
Rushing costs points
People who finished the 25 questions in under three minutes averaged 99.6. Those who took three to five minutes averaged 117.1.
Spatial reasoning is the hardest skill
Spatial questions were answered correctly 58% of the time, memory questions 77%. Spatial reasoning was the weakest domain in six of the seven months.
A small afternoon edge
Tests taken between 1 and 4 p.m. local time averaged 116.4; tests taken between 5 and 8 a.m. averaged 113.3.
About the sample
3,834 completed standard IQ tests from 134 countries. It is a self-selected online sample, so these are patterns among our test-takers, not population figures.
Free to quote, with a link
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Data requests and comment
We can share the aggregate tables, cut the data by country, language or month, and comment on how online IQ tests work, what IQ scores and percentiles mean, and picture-based, culture-fair testing.
You may quote the findings and reuse the charts from the study, with a link to it as the source.