Accuracy and precision ≈ Accuracy and precision
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Are Currently Available Wearable Devices for Activity Tracking and Heart Rate Monitoring Accurate, Precise, and Medically Beneficial? Open
The accuracy and precision of the selected fitness trackers are reasonable and can indicate the average level of activity and thus average energy expenditure.
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‘Bodily precision’: a predictive coding account of individual differences in interoceptive accuracy Open
Individuals differ in their awareness of afferent information from within their bodies, which is typically assessed by a heartbeat perception measure of ‘interoceptive accuracy’ (IAcc). Neural and behavioural correlates of this trait have …
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Sample Size for Assessing Agreement between Two Methods of Measurement by Bland−Altman Method Open
The Bland–Altman method has been widely used for assessing agreement between two methods of measurement. However, it remains unsolved about sample size estimation. We propose a new method of sample size estimation for Bland–Altman agreemen…
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Interlaboratory Reproducibility of a Targeted Metabolomics Platform for Analysis of Human Serum and Plasma Open
A critical question facing the field of metabolomics is whether data obtained from different centers can be effectively compared and combined. An important aspect of this is the interlaboratory precision (reproducibility) of the analytical…
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Accuracy and Reliability of the Kinect Version 2 for Clinical Measurement of Motor Function Open
Given that this system is low-cost, portable and does not require any sensors to be attached to the body, it could provide numerous advantages when compared to established marker- or wearable sensor based system. The Kinect V2 has the pote…
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Calibration-Free Electrochemical Biosensors Supporting Accurate Molecular Measurements Directly in Undiluted Whole Blood Open
The need to calibrate to correct for sensor-to-sensor fabrication variation and sensor drift has proven a significant hurdle in the widespread use of biosensors. To maintain clinically relevant (±20% for this application) accuracy, for exa…
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Assessing the accuracy of predictive models for numerical data: Not r nor r2, why not? Then what? Open
Assessing the accuracy of predictive models is critical because predictive models have been increasingly used across various disciplines and predictive accuracy determines the quality of resultant predictions. Pearson product-moment correl…
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Measures of Accuracy for Continuous Glucose Monitoring and Blood Glucose Monitoring Devices Open
Currently, patients with diabetes may choose between two major types of system for glucose measurement: blood glucose monitoring (BGM) systems measuring glucose within capillary blood and continuous glucose monitoring (CGM) systems measuri…
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Single-spot two-dimensional displacement measurement based on self-mixing interferometry Open
The simultaneous and independent measurements of in-plane and out-of-plane displacements are significant issues to be solved in research. Here a novel system to realize single-spot two-dimensional (2D) displacement measurement of a noncoop…
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High‐precision iRT prediction in the targeted analysis of data‐independent acquisition and its impact on identification and quantitation Open
Targeted analysis of data‐independent acquisition (DIA) data is a powerful mass spectrometric approach for comprehensive, reproducible and precise proteome quantitation. It requires a spectral library, which contains for all considered pep…
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Mitigating systematic error in topographic models for geomorphic change detection: accuracy, precision and considerations beyond off‐nadir imagery Open
Unmanned aerial vehicles (UAVs) and structure‐from‐motion photogrammetry enable detailed quantification of geomorphic change. However, rigorous precision‐based change detection can be compromised by survey accuracy problems producing syste…
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Practical Use of Metal Oxide Semiconductor Gas Sensors for Measuring Nitrogen Dioxide and Ozone in Urban Environments Open
The potential of inexpensive Metal Oxide Semiconductor (MOS) gas sensors to be used for urban air quality monitoring has been the topic of increasing interest in the last decade. This paper discusses some of the lessons of three years of e…
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Enhancement of accuracy in shape sensing of surgical needles using optical frequency domain reflectometry in optical fibers Open
We demonstrate a novel approach to enhance the precision of surgical needle shape tracking based on distributed strain sensing using optical frequency domain reflectometry (OFDR). The precision enhancement is provided by using optical fibe…
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Leaf water potential measurements using the pressure chamber: Synthetic testing of assumptions towards best practices for precision and accuracy Open
Leaf water potential ( ψ leaf ), typically measured using the pressure chamber, is the most important metric of plant water status, providing high theoretical value and information content for multiple applications in quantifying critical …
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Monitoring gait in multiple sclerosis with novel wearable motion sensors Open
BioStampRC sensors accurately and precisely measure gait parameters in PwMS across diverse walking impairment levels and detected differences in gait characteristics by disability level in PwMS. This technology has the potential to provide…
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A new EPMA method for fast trace element analysis in simple matrices Open
It is well known that trace element sensitivity in electron probe microanalysis (EPMA) is limited by intrinsic random variation in the X-ray continuum background and weak signals at low concentrations. The continuum portion of the backgrou…
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Investigation of accuracy and reproducibility of abutment position by intraoral scanners Open
The results of this study indicated that an optical impression method with an intraoral scanner could be applied to the implant therapy for multiple teeth missing.
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Digital PCR Modeling for Maximal Sensitivity, Dynamic Range and Measurement Precision Open
The great promise of digital PCR is the potential for unparalleled precision enabling accurate measurements for genetic quantification. A challenge associated with digital PCR experiments, when testing unknown samples, is to perform experi…
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Boehm Titration Revisited (Part I): Practical Aspects for Achieving a High Precision in Quantifying Oxygen-Containing Surface Groups on Carbon Materials Open
Practical aspects of the Boehm titration method are evaluated for obtaining reliable results in the quantification of oxygen-containing surface groups in a short time. Analytical criteria such as accuracy, repeatability, precision, and rob…
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Accuracy and precision of fixation locations recorded with the low-cost Eye Tribe tracker in different experimental set-ups Open
This article compares the accuracy and precision of the low-cost Eye Tribe tracker and a well-established comparable eye tracker: SMI RED 250. Participants were instructed to fixate on predefined point locations on a screen. The accuracy i…
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High-accuracy range-sensing system based on FMCW using low-cost VCSEL Open
Long-range shape measurement with high accuracy is needed for precision manufacturing of large-scale parts such as turbines, compressors, and trains. We have developed a high-accuracy ranging system based on frequency-modulated continuous-…
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Areal topography measurement of metal additive surfaces using focus variation microscopy Open
In this work, the performance of a focus variation instrument for measurement of areal topography of metal additive surfaces was investigated. Samples were produced using both laser and electron beam powder bed fusion processes with some o…
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Accuracy, repeatability, and interplatform reproducibility of T<sub>1</sub> quantification methods used for DCE‐MRI: Results from a multicenter phantom study Open
Purpose To determine the in vitro accuracy, test‐retest repeatability, and interplatform reproducibility of T 1 quantification protocols used for dynamic contrast‐enhanced MRI at 1.5 and 3 T. Methods A T 1 phantom with 14 samples was image…
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Evaluating causes of error in landmark-based data collection using scanners Open
In this study, we assess the precision, accuracy, and repeatability of craniodental landmarks (Types I, II, and III, plus curves of semilandmarks) on a single macaque cranium digitally reconstructed with three different surface scanners an…
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A Multilaboratory Comparison of Calibration Accuracy and the Performance of External References in Analytical Ultracentrifugation Open
Analytical ultracentrifugation (AUC) is a first principles based method to determine absolute sedimentation coefficients and buoyant molar masses of macromolecules and their complexes, reporting on their size and shape in free solution. Th…
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Improved camera calibration method based on perpendicularity compensation for binocular stereo vision measurement system Open
High-precision calibration of binocular vision systems plays an important role in accurate dimensional measurements. In this paper, an improved camera calibration method is proposed. First, an accurate intrinsic parameters calibration meth…
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Mixed precision algorithms in numerical linear algebra Open
Today’s floating-point arithmetic landscape is broader than ever. While scientific computing has traditionally used single precision and double precision floating-point arithmetics, half precision is increasingly available in hardware and …
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Low-cost PM2.5 Sensors: An Assessment of Their Suitability for Various Applications Open
Recently, there has been a substantial increase in the availability and use of low-cost particulate matter sensors in a wide range of air quality applications. They carry the promise of revolutionising air quality monitoring, yet considera…
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Precision of Digital Volume Correlation Approaches for Strain Analysis in Bone Imaged with Micro-Computed Tomography at Different Dimensional Levels Open
Accurate measurement of local strain in heterogeneous and anisotropic bone tissue is fundamental to understand the pathophysiology of musculoskeletal diseases, to evaluate the effect of interventions from preclinical studies, and to optimi…
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Evaluation of 3-Dimensional Superimposition Techniques on Various Skeletal Structures of the Head Using Surface Models Open
Superimposition of 3D datasets using surface models created from voxel data can provide accurate, precise, and reproducible results, offering also high efficiency and increased post-processing capabilities. In the present study population,…