Precision and bias
Impact of missing data on bias and precision when estimating change in patient-reported outcomes from a clinical registry
... Olawale F. Ayilara 1 , Lisa Zhang 1 , Tolulope T. Sajobi 2 , Richard Sawatzky 3 , Eric Bohm 4 and Lisa M. Lix 1* Abstract Background: Clinical registries, which capture information about the health and healthcare use of ...
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Close to You? Bias and Precision in Patent-Based Measures of Technological Proximity
... greater precision from larger samples of patents, patent classes, or years can mitigate both bias and precision ...the bias of proximity ...
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The Importance of Scale for Spatial-confounding Bias and Precision of Spatial Regression Estimators
... the bias-variance tradeoff as a function of the scale at which the spatial residual structure is modeled, such as described in Peng et ...of bias in the context of the spatial scales ...less bias in ...
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Dilution of Precision Relationship between Time Difference of Arrival and Time of Arrival Techniques with No Receiver Clock Bias
... of Precision Relationship between Time Difference of Arrival and Time of Arrival Techniques with No Receiver Clock Bias Heon Ho Choi*, Mi Hyun Jin**, Deok Won Lim*, Sang Jeong Lee** and Chansik Park † ...
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Voltech DC1000. Precision DC Bias Current Source
... Control Precision Current Monitor Temp Control Unique Propriety LCR Meter Current Compen- sation Variable Speed Cooling Fan Air Temp Sensor Low Ripple DC Bus AC Input Enable Remote Micro[r] ...
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Intercomparison of snow density measurements: bias, precision, and vertical resolution
... As the stratigraphy is defined by several properties, density alone is always an insufficient parameter for the traditional stratigraphy. Here we demonstrate that the traditional stratig- raphy often shows much sharper ...
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Analysis of Covariance (ANCOVA) in Randomized Trials: More Precision, Less Conditional Bias, and Valid Confidence Intervals, Without Model Assumptions
... estimator” to refer to the ANCOVA estimator. Concerns have been raised about the validity of ANCOVA for analyzing randomized trial data when the linear model is misspecified. For example, Kraemer (2015) states “The ...
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VOLTECH INSTRUMENTS DC1000A Precision DC Bias Current Source. User Manual. DC1000A User Manual ( issue 8) 1
... Also enter the DC bias current you would like to apply. Please note that the Measure button may be used here. For information, refer to the ‘Test Program Editor’ of your AT manual 2. Select the integration time ...
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Bias and Precision in QST Estimates: Problems and Some Solutions
... The bias and variation in the point estimates of Q ST were examined by simulating data with known parameter values and comparing the known and estimated ...
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Bias, Precision and Power of Some Techniques in Genome-Wide Association Analysis
... In Chapter 2, we assess bias and power for adjusted-trait regression (ATR). ATR is a modification to the traditional ordinary least-squares estimation and F-test hypothesis testing techniques for quantitative ...
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Bias and precision in early phase adaptive oncology studies and its consequences for confirmatory trials
... methods. Bias and imprecision of estimates from phase II trials may result in poor planning of subsequent phase III trials, contributing to high failure rate in phase III, which is acknowledged to be as high as ...
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Bias, precision and statistical power of analysis of covariance in the analysis of randomized trials with baseline imbalance: a simulation study
... and precision of treatment effect and associated statistical power through using either ANOVA or CSA in relation to the unbiased estimate of treatment effect by ANCOVA, in differing hypothetical trial ...of ...
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Bias and precision of methods for estimating the difference in restricted mean survival time from an individual patient data meta-analysis
... In meta-analyses or in multicenter clinical trials, there is a need to take into account the trial or center effect to avoid the Simpson’s paradox that may lead to biased estimates [11–13]. Different authors have ...
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Precision medicine in myasthenia graves: begin from the data precision
... between precision in individual patients and the representativeness in patient population in the enrollment ...Selection bias is easily caused by insufficient follow-up in specific MG groups, such as child ...
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Big data hurdles in precision medicine and precision public health
... Main body: The present work focuses on analyzing both the technical and societal hurdles related to the development of prediction models of health risks, diagnoses and outcomes from integrated biomedical databases. ...
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The bias bias
... the bias–variance ...“bias bias”: the importance of the bias component of prediction error is inflated, and the variance component of prediction error, which reflects an oversensitivity of a ...
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Precision Pharmacotherapy Enables Precision Medicine
... at precision medicine with a broader lens, many would say that the personalized medicine mantra has been a key component of clinical pharmacology since its ...
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Bias against research on gender bias
... Discussion Articles on gender discrimination were funded less often and published in less prestigious journals than papers on racial discrimination. Considering that the percentage of women in the author pool had a ...
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Sources of Bias and Solutions to Bias in the CPI
... upward bias in the estimate of the CPI because the increase in the COLI due to quality change, as with cellular phones that became smaller, more reliable, with longer battery life, and more convenient to use, ...
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SNR High Precision bearings and precision nuts
... • Shaft alignment Misalignment entails stress loading and vibrations that give rise to premature deterioration of bearings, and also coupling, packing and sealing, etc. Abnormal stress loading associated with ...
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