Suppose that Joseph Brown is a U.S.diplomat who works in Country X,and he is trying to assess whether Country X poses a threat to the United States.The diplomat gathers evidence that Country X poses a threat,but he does not try to gather evidence that Country X does not pose a threat.This error is called

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The diplomat's failure to gather evidence that Country X does not pose a threat is an example of confirmation bias, which is the tendency to search for, interpret, and remember information in a way that confirms one's preexisting beliefs or hypotheses. In this case, the diplomat had an initial belief that Country X posed a threat and only sought out information that supported this belief, rather than considering information that could potentially disconfirm it.

Suppose That Joseph Brown Is a U