Measurement uncertainty.
The reporting of measurement uncertainty has recently undergone a major harmonization whereby characteristics of a measurement method obtained during establishment and application are combined componentwise. For example, the sometimes-pesky systematic error is included. A bias component of uncertainty can be often easily established as the uncertainty in the bias. However, beyond simply arriving at a value for uncertainty, meaning to this uncertainty if needed can sometimes be developed in terms of prediction confidence in uncertainty-based intervals covering what is to be measured. To this end, a link between concepts of accuracy and uncertainty is established through a simple yet accurate approximation to a random variable known as the non-central Student's t-distribution. Without a measureless and perpetual uncertainty, the drama of human life would be destroyed. Winston Churchill.
Bartley
David
D
Annals of Occupational Hygiene, 3904 Pocahontas Avenue, Cincinnati, OH 45227, USA. dbartley@eos.net <dbartley@eos.net>
Lidén
Göran
G
D015982:Bias; D003627:Data Interpretation, Statistical; D006801:Humans; D035501:Uncertainty