Cabrera: The device itself is a mechanical system, that we can measure pretty easily — the resolution, the precision of the device.
The SEM and associated 95% confidence interval are estimations of measurement precision of the device.
Measuring the RMS and P2V values of spherical surfaces shows the precision of the device.
However, the repeatability limit R shows poor precision of the device to measure pachymetry.
As previously mentioned, future developments to the design of the MDL, which include 6 reed switches and a greater frequency for recording time stamps, may increase the precision of the device to make it an effective tool in wheelchair sport settings.
But until such a time as the devices themselves have sufficiently evolved, and even with established standards in hand, we're still left with the near-term reality that the accuracy and precision of these devices are sufficiently low, so as to render them ineffective for clinical decision-making.
Precision of the devices to measure SV was identical to that noted above for CO: 8 ± 7% and 9 ± 5% for NICOM and PICCO PC SV, respectively.
However, there have been several documented limitations regarding the accuracy and precision of these devices, including greater differences compared with a standard plasma-based methodology as INRs increase above the therapeutic range [ 4– 7].
The quick, step-by-step process replaces what used to be a painstaking manual art and allows Wood's team to use more robust materials in new combinations, while improving the overall precision of each device.
Accuracy and precision of each device was evaluated as a function of the activity contained in the sample in order to estimate a threshold value, or minimum detectable activity (MDA), which, according to our operational definition, may be used to express the concept of Limit of Quantification (LoQ).
