Confirmation bias
Confirmation bias is the tendency to seek out or interpret information in a way that favours a prior belief
What it means, how it is used and where it comes up, with its related concepts.
What it is and how it works
It can affect research, analysis and product decisions. It helps to test alternative hypotheses and look for cases that contradict the preferred explanation. Recording the criteria before analysing makes it easier to spot changes of interpretation driven by expectations.
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