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Bias is a term used to describe a tendency or preference towards a particular perspective, ideology or result, especially when the tendency interferes with the ability to be impartial, unprejudiced, or objective.[1]. In other words, bias is generally seen as 'one-sided'. The term biased is used to describe an action, judgment, or other outcome influenced by a prejudged perspective. It is also used to refer to a person or body of people whose actions or judgments exhibit bias. The term "biased" is often used as a pejorative, because bias is inherently unjust, lacking merit.

Psychology of bias

In psychology, cognitive bias is bias based on cognitive factors. One type of cognitive bias is confirmation bias, the tendency to interpret new information in such a way that confirms one's prior beliefs, even to the extreme of denial, ignoring information that conflicts with one's prior beliefs. The fundamental attribution error, also known as "correspondence bias", is one example of such bias, in which people tend to explain others' behavior in terms of personality, whereas they tend to explain their own behavior in terms of the situation.[2][3]

Types of biases

  • Cultural: interpreting and judging phenomena in terms particular to one's own culture.
  • Ethnic or racial: racism, regionalism and tribalism.
  • Geographical: describing a dispute as it is conducted in one country, when the dispute is framed differently elsewhere.
  • Inductive
  • Media: real or perceived bias of journalists and news producers within the mass media, in the selection of which events will be reported and how they are covered
  • Gender: including sexism and heteronormativity.
  • Linguistic: bias, favoring certain languages
  • Political: bias in favor of or against a particular political party, philosophy, policy or candidate.
  • Corporate: bias in favor of a business.
  • Advertising: bias with observations motivated for selling an opinion rather than using objectivity.
  • Sociological: bias in favor of a society's ideals. bias for groups needs/wants.
  • Entertainment: bias in favor of entertaining an audience
  • Personal: bias for personal gain.
  • Religious: bias for or against religion, faith or beliefs;
  • Sensationalist: favoring the exceptional over the ordinary. This includes emphasizing, distorting, or fabricating exceptional news to boost commercial ratings.
  • Scientific (including anti-scientific and scientific skepticism): favoring (or disfavoring) a scientist, inventor, or theory for non-scientific reasons. This can also include excessive favoring (or disfavoring) prevalent scientific opinion, if in doing so, other viewpoints are no longer being treated neutrally.

See also

[[Image:|32x28px]] Psychology portal


External links


Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

See also Bias





From Middle French biasis, from Old Provençal biais.


Wikipedia has an article on:



countable and uncountable; plural biases or biasses

bias (countable and uncountable; plural biases or biasses)

  1. (countable) (uncountable) inclination towards something; predisposition, partiality, prejudice, preference, predilection
    • 1748. David Hume. Enquiries concerning the human understanding and concerning the principles of moral. London: Oxford University Press, 1973. § 4.
      nature has pointed out a mixed kind of life as most suitable to the human race, and secretly admonished them to allow none of these biasses to draw too much
  2. (countable) (textile) the diagonal line between warp and weft in a woven fabric
  3. (electronics) a voltage or current applied for example to a transistor electrode
  4. (statistics) the difference between the expectation of the sample estimator and the true population value, which reduces the representativeness of the estimator by systematically distorting it


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.


to bias

Third person singular
biases or biasses

Simple past
biased or biassed

Past participle
biased or biassed

Present participle
biasing or biassing

to bias (third-person singular simple present biases or biasses, present participle biasing or biassing, simple past and past participle biased or biassed)

  1. (transitive) To place bias upon; to influence.
    Our prejudices bias our views.


  • Anagrams of abis
  • isba

Simple English

Bias means that a person prefers an idea and possibly does not give equal chance to a different idea. Bias can be influenced by a number of factors, such as popularity (for example, a newspaper might be biased towards a particular political party due to their employees sharing the same political beliefs as that party).

Bias also means mistakes in measurements. For example, a person may measure the height of another person wearing shoes. The shoes make the height more than the same person without shoes. If the extra height of the shoes (extra bias) was not explained, someone might think that the person had been measured without shoes on. Data with extra parts not explained is called biased data.

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