accuracy

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accuracy

[ak′yərəsē′]

the extent to which a measurement is close to the true value.

accuracy

the closeness with which an observation or a measurement of a variable approximates its true value. An important component of diagnostic tests. An accurate test implies freedom from both random and systematic error. See also precision.

accuracy

Lab medicine The extent to which a value from a test reflects or agrees with the reference value of the analyte being tested, measured statistically by standard deviations; the proportion of correct outcomes of a method–often used interchangeably with concordance. See Coefficient of variation, Diagnostic accuracy, Inaccuracy, Two-by-two table. Cf Precision.

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accuracy