Bias 05
Bias 05 : (a) A technical term for playing favorites in choosing study subjects or in assessing exposure. [FACS, 2000: Epidemiology for Journalists]; (b) Any effect at any stage of investigation or inference tending to produce results that depart systematically from the true values (to be distinguished from random error). The term "bias" does not necessarily carry an imputation of prejudice or other subjective factor, such as the experimenter's desire for a particular outcome. This differs from conventional usage in which bias refers to a partisan point of view. Many varieties of bias have been described. [attributed to Sackett, (d) L., Bias in analytic research, (j) Chron. Dis. 32: 51-53 (1979)].
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