What is Confirmation Bias?

Confirmation bias refers to a type of bias in which individuals favor information that aligns with their opinions or perspectives combined with a tendency to disregard all contrary information. 

In psychology, confirmation bias is a situation where an individual ignores ideas and opinions that do not match with theirs. For instance, individuals tend to take an idea or concept as true and useful if it confirms their previous beliefs. All other concepts, opinions and ideas are filtered.