measurement error


Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.

error

 [er´or]
a defect or mistake in structure or function.
inborn error of metabolism a genetically determined biochemical disorder in which a specific enzyme defect produces a metabolic block that may have pathologic consequences at birth, as in phenylketonuria, or in later life.
measurement error the difference between what exists in reality and what is measured by a measurement method.
Type I error the rejection of a null hypothesis that is true.
Type II error acceptance of a null hypothesis that is false.

measurement error

The difference between the true value of something being measured and the value obtained by measurement. Measurement error can be the result of one or more of several different factors, including operational blunders, random error, and systematic error. See: bias; proportional error; random error
See also: error
References in periodicals archive ?
Since all tools have error claims based on a certainty or probability of detection that must be accounted for, minimum detection limits and standard deviation measurements taken in infinite combinations ensure that a measured monitoring defect, plus the measurement error, do not reach or exceed critical defect sizes.
Understanding the nature of random and systemic measurement error and quantifying the estimates of bias and uncertainty will be critical to developing the objective evidence and communicating the confidence required for achieving the laboratory's quality claims for a single reportable result.
For later data vintages, the measurement error of the OECD data declines, as the data get closer to their "ex post vintage.
In contrast to NEFSC (2), measurement error parameters were obtained from experiments and not estimated in the CASA model itself.
J, there are three plausible interpretations; either the discrepancy is due to a structural break or a serious measurement error, or a combination of both at T.
We find this leads to a more parsimonious state-space representation and a cleaner distinction between various aspects of measurement error.
These three pedometers were checked to confirm that the magnitude of measurement error was below 3% under 1000 steps of usual walking, before all experiments.
We use this case example to: (1) demonstrate how and why ignoring measurement error can result in large bias in estimating the prevalence of an outcome; and (2) outline some ways to recognize and avoid such bias in future work.
The new PRS05 solution maintains a measurement error of less than 5% over the full working temperature range.
A specimen guidance system is said to minimize any measurement error and variance, and in addition, the test results are said to be largely unaffected by frictional forces, due to the use of friction-free ball guides in the fixture.

Full browser ?