Online version of the Cognitive Reflection Test (CRT) by Shane Frederick, a simple measure of one type of cognitive ability – the ability or disposition to reflect on a question and resist reporting the first response that comes to mind. CRT is described by some to be the world's shortest intelligence test.
Test is provided for educational and entertainment use only. It is not intended to be a psychological advice of any kind, and come without any guarantee of accuracy or validity. Assesment is free and anonymous. You can save the direct link to your results.