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.
Author: Shane Frederick (2005)
This test is provided for educational and entertainment purposes only. It does not constitute psychological advice of any kind and comes with no guarantee of accuracy or validity. The assessment is free and anonymous.