Results 11 to 20 of about 4,222,943 (302)
Children, 2021 In 2019, numerous championships of youth categories soccer national teams were held. In the present study, we analyzed the existence of the Relative Age Effect (RAE) in four major male championships that, due to their importance and participating teams ...
Benito Pérez-González +4 more
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Bone & Joint Open, 2023 Aims: Early large treatment effects can arise in small studies, which lessen as more data accumulate. This study aimed to retrospectively examine whether early treatment effects occurred for two multicentre orthopaedic randomized controlled trials (RCTs)
Catherine N. Knowlson +4 more
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Variable Selection Bias in Classification Trees Based on Imprecise Probabilities [PDF]
, 2005 Classification trees based on imprecise probabilities provide an advancement of classical classification trees. The Gini Index is the default splitting criterion in classical classification trees, while in classification trees based on imprecise ...
Carolin Strobl, Strobl, Carolin
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Statistical Sources of Variable Selection Bias in Classification Tree Algorithms Based on the Gini Index [PDF]
, 2005 Evidence for variable selection bias in classification tree algorithms based on the Gini Index is reviewed from the literature and embedded into a broader explanatory scheme: Variable selection bias in classification tree algorithms based on the Gini ...
Strobl, Carolin
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Scandinavian Journal of Work, Environment & Health, 2014 Present day low participation rates in certain parts of research is concerning. It is not unusual that half (or even more) of those invited to participate in a research project decline the invitation.
Jørn Olsen
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Scientific Research or Advocacy? Emotive Labels and Selection Bias Confound Survey Results
Ecology and Society, 2000 Robert Costanza presents four compelling visions of the future, but the language he uses to describe them is emotive and value-laden and may bias the survey results.
Jerome K. Vanclay
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Selection Bias, Confounding, or Information Bias? [PDF]
Hypertension, 2007 To the Editor, As a public health advocate against tobacco use, I find the recent article by Jatoi et al1 interesting and quite informative. As an epidemiologist, I also have a few concerns surrounding the methodologic issues of such study findings. One of the most essential components of a comprehensive tobacco control program is to disseminate the ...
openaire +2 more sources
Frontiers in Sports and Active Living, 2020 FC Barcelona is a multi-sport organization that adopts a talent identification approach that emphasizes the technical, psychological, and perceptual–cognitive attributes. It is unclear within this type of sporting selection model whether the relative age
Greg Doncaster +4 more
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Optimal classifier selection and negative bias in error rate estimation: An empirical study on high-dimensional prediction [PDF]
, 2009 In biometric practice, researchers often apply a large number of different methods in a "trial-and-error" strategy to get as much as possible out of their data and, due to publication pressure or pressure from the consulting customer, present only the ...
Carolin Strobl +5 more
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Accounting for biases in survey-based estimates of population attributable fractions
Population Health Metrics, 2019 Background This paper discusses best practices for estimating fractions of mortality attributable to health exposures in survey data that are biased by observed confounders and unobserved endogenous selection.
Ryan Masters, Eric Reither
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