How many of the thirty most common misconceptions did you fall for?

How good is your b--lshit detector?

A new test from Spencer Greenberg, a mathematician by background and a founder of a quantitative investment firm, aims to help you deem just that - and he's launching it with i100.co.uk.

Greenberg is the person behind US-based clearerthinking.org, a not-for-profit project he created in 2012 to help people make the right decisions.

Take the common misconceptions test below, and let us know how you did in the comments.

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