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.
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Yield strength of HDPE/COC blends and its comparison with theoretical predictions; error bars not shown as they were quite small (average experimental error < 0.4 MPa).
Conversely, individual body weight can be used as a covariate to reduce the estimates of experimental error in the statistical model.
(2016), whenever a homogeneous experimental unit is available, the completely randomized design should be preferred, since it is more flexible in relation to the number of repetitions and treatments, besides allowing the greatest number of possible degrees of freedom for the experimental error, resulting in a greater accuracy.
The simulation results indicated that the possible reason for such high disagreement may be attributed to the systematic experimental error. It was found that the effect of refractive index difference may lead to the experimental error in the measured fluctuations for the two-liquid case.
The value of F is used to show that the effect of a factor on the efficiency is less than that of experimental error if the value of F is less than 1.
This is mainly due to the fact that implicit assumptions related with nonlinear regression are in general not met in the context of deviations that appear as a result of biological errors (e.g., variations in the enzyme preparations due to oxidation or contaminations) and/or experimental errors (e.g., variations in measured volume of substrates and enzymes, imprecisions of the instrumentation).
At some point, the confidence regions are dominated by experimental error and additional Monte Carlo samples do not affect the results.
The experiments were performed according to the response surface methodology (RSM) and rotational central composite design (CCD) methods, with three repetitions at central levels to find the estimated experimental error. The methodology consisted of a full factorial or fractional factorial design; or of an additional design, which is often a star design where in the experimental points are at a distance a from its center (BOX; WILSON, 1951).
But another set of measurements, made by the European Space Agency's Planck satellite, puts the figure about 9 percent lower than the supernova measurements, at 67 km/s per mega-parsec with an experimental error of less than 1 percent.
The contribution to total sum of squares regardless of trait revealed that environments (0.42 to 89.55%) and genotypes (5.02 to 46.21%) play principal role followed by genotype x environment (3.40 to 40.00%), while experimental error share was negligible (0.12 to 21.37%).
The fact that J is in Column II, whereas M is not, is clearly a case of experimental error, which is readily rectified by the simple expedient of interchanging the positions of J and M!

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