experimental error


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ex·per·i·men·tal er·ror

the total error of measurement ascribed to the conduct of an empiric observation. It is commonly expressed as the standard deviation of replicated experiments. There may be many components, including those in the sampling procedure, the measurements, injudicious choice of a model, observer bias, etc.

ex·per·i·men·tal er·ror

(eks-per'i-men'tăl er'ŏr)
The total error of measurement ascribed to the conduct of an empiric observation. It is commonly expressed as the standard deviation of replicated experiments. There may be many components, including those in the sampling procedure, the measurements, injudicious choice of a model, observer bias, or other factors.

error

the wrong answer in an experiment or result to a questionnaire.

experimental error
of two types, errors of objectivity when the experimenter knows the groups and the expected result, and errors of detection or measurement due to inadequate technique or the uneven application of measuring techniques.
random error
error which occurs due to chance, such as sampling error.
sampling error
one due to the fact that the result obtained from a sample is only an estimate of that obtained from using the entire population.
systematic error
when the error is applied to all results, i.e. those due to bias.
error types I and II
in making a statistical test, you can reject the null hypothesis when it is true (type I) or accept the null hypothesis when it is false (type II).
References in periodicals archive ?
Due to instrument accuracy and other experimental error, a sound level difference of at least 2 dB is required to have confidence in the parameter level causing the change in the sound level.
15 See Hon, "Franck and Hertz versus Townsend: A Study of Two Types of Experimental Error.
F<1: The experimental error outweighs the control effect; the control factor is insignificant and indistinguishable from the experimental error.
Experiments involving a set of factors are usually more efficient than simple experiments because they allow for broader responses and the evaluation of the interaction among factors, providing an estimate of the variance of the experimental error with more accuracy and increasing the power of the statistical tests (WECHSLER, 1998).
must carry the estimated experimental error of the mean square charge radius of the [[SIGMA].
Only minor qualitative differences, which are within the experimental error of the technique, were observed.
Moreover, research methods in which quantitative data obey the normal distribution, the CV has been the most important statistic to describe the precision of the experimental error.
The noted interaction between Zl and Z2 will be discussed separately below to find the significance that may arise from normal experimental error.
3] are the parameters to be estimated and [epsilon] is the experimental error.
This is generally considered not significant because it falls within allowable experimental error.
This most likely indicates more sensitivity of the feed rate to experimental error in reproducing the starve feeder setpoint for PC/ABS.

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