They differ from what is sometimes called the behavioral confirmation effect, commonly known as self-fulfilling prophecy, in which a person's expectations influence their own behavior, bringing about the expected result. Ĭonfirmation biases are effects in information processing. Confirmation bias is an example of a cognitive bias.Ĭonfirmation bias (or confirmatory bias) has also been termed myside bias.
2.3 Biased memory recall of information.2.2 Biased interpretation of information.In social media, confirmation bias is amplified by the use of filter bubbles, or "algorithmic editing", which display to individuals only information they are likely to agree with, while excluding opposing views. A medical practitioner may prematurely focus on a particular disorder early in a diagnostic session, and then seek only confirming evidence. Similarly, a police detective may identify a suspect early in an investigation, but then may only seek confirming rather than disconfirming evidence. For example, confirmation bias produces systematic errors in scientific research based on inductive reasoning (the gradual accumulation of supportive evidence). These biases contribute to overconfidence in personal beliefs and can maintain or strengthen beliefs in the face of contrary evidence. In general, current explanations for the observed biases reveal the limited human capacity to process the complete set of information available, leading to a failure to investigate in a neutral, scientific way.įlawed decisions due to confirmation bias have been found in political, organizational, financial and scientific contexts. Later work re-interpreted these results as a tendency to test ideas in a one-sided way, focusing on one possibility and ignoring alternatives.
#Preconcieved notion definition series#
illusory correlation (when people falsely perceive an association between two events or situations).Ī series of psychological experiments in the 1960s suggested that people are biased toward confirming their existing beliefs.the irrational primacy effect (a greater reliance on information encountered early in a series).belief perseverance (when beliefs persist after the evidence for them is shown to be false).attitude polarization (when a disagreement becomes more extreme even though the different parties are exposed to the same evidence).Confirmation bias cannot be eliminated, but it can be managed, for example, by education and training in critical thinking skills.īiased search for information, biased interpretation of this information, and biased memory recall, have been invoked to explain four specific effects: The effect is strongest for desired outcomes, for emotionally charged issues, and for deeply entrenched beliefs.
People display this bias when they select information that supports their views, ignoring contrary information, or when they interpret ambiguous evidence as supporting their existing attitudes. Tendency of people to favor information that confirms their beliefs or valuesĬonfirmation bias is the tendency to search for, interpret, favor, and recall information in a way that confirms or supports one's prior beliefs or values.
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