We automatically search and take into consideration only information that confirms our point of view.
A rooted form of confirmation bias is self-serving bias, meaning the tendency to explain ourselves the good results through our positive nature and the negative results through the hostile context. And vice versa.
A study led by Dan Kahan (2017) shows that we know how to identify a mistake in the design of an experiment, when research is about a hand cream (a neutral subject), but not when the experiment confirms the need for greater control of firearms (ias long as we are great supporters of this public policy).
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