Measurement error


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Measurement error

Errors in measuring an explanatory variable in a regression, which leads to biases in estimated parameters.

Measurement Error

The difference between the value of some quantity and the value obtained by measuring it. It is nearly impossible to attain accurate measurements all the time, especially when one uses a single means of calculation. For this reason, when measuring the value of a company or asset, many analysts will check and double-check their work, and perhaps calculate the value using a different method, in order to ensure accuracy. See also: Audit, Due diligence.
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The trial verified that with 10 thousand pieces of data this technology was capable of estimating OSNR with a measurement error of 1%, and the modulation format and symbol rate with a measurement error of 5%.
The variance unexplained by main effects is measurement error and it was calculated as ratio between the sum of squares of an effect and the total sum of squares multiplied by 100 (Viscosi and Cardini, 2011).
Some tolerance for error in wine alcohol labels is appropriate for several reasons: One reason is to allow for measurement error, since the instruments (and perhaps their users) are not always perfectly precise.
Systematic measurement error is much easier to find and identify than random error.
Mb assume that measurement error accounts for half of the variability in measured productivity growth.
We identified this gap and consequently developed LW Finder to determine optimal strain gauge placement and predict measurement errors to dramatically improve the quality of the measured data.
Our present objective is to extend these analyses with an additional 7 years of follow-up, to determine the association of air pollution with specific histological subtypes, and to perform analyses incorporating adjustment for measurement error, using information from an exposure validation study (Van Roosbroeck et al.
To address all crack-detection tool performance design considerations, NYSEARCH/ NGA worked with Kiefner to establish performance criteria curves and tables for crack detection and sizing that cover all ranges of pipeline steel material variability, tool measurement error and pipeline stress.
Biological variability takes into account variations due to measurement error and intra-individual effects (10).
Is the measurement error less than the smallest worthwhile change?
The temperature measurement error using five A type sensors in the temperature range from 25[degrees]C to 80[degrees]C, when the Steinhart-Hart interpolation equation (1) with the coefficients [A.
2) Bias in estimates can result from measurement error, processing/editing error, coverage error, and nonresponse error (Federal Committee on Statistical Methodology [FCSM] 2001).
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