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Kevin Langdon's 'Omni' IQ test
Personal web pages of Dr Steve Hopkins, physicist, musician
Standard IQ tests, such as the famous Stanford-Binet scale, are usually time-limited and designed to measure scores clustering around 100, the average in the human population. During my academic life as a research physicist, I often witnessed races to offer quick solutions to problems arising in our laboratory brain-storming sessions. I suspect that the usual 'winners' succeeded via a strategy (perhaps unconscious) of aiming to be right around only 90% of the time, and not fretting too much over any confounding doubts or alternative theories that might delay an answer.
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