Results 31 to 40 of about 4,525,334 (379)

Accounting for biases in survey-based estimates of population attributable fractions

open access: yesPopulation 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
doaj   +1 more source

Measurement equivalence in mixed mode surveys

open access: yesFrontiers in Psychology, 2015
Surveys increasingly use mixed mode data collection (e.g., combining face-to-face and web) because this controls costs and helps to maintain good response rates.
Joop J. Hox   +2 more
doaj   +1 more source

Selection Bias Requires Selection: The Case of Collider Stratification Bias. [PDF]

open access: yesAm J Epidemiol, 2023
Abstract In epidemiology, collider stratification bias, the bias resulting from conditioning on a common effect of two causes, is oftentimes considered a type of selection bias, regardless of the conditioning methods employed. In this commentary, we distinguish between two types of collider stratification bias: collider restriction bias ...
Lu H, Gonsalves GS, Westreich D.
europepmc   +3 more sources

Effects of site‐selection bias on estimates of biodiversity change

open access: yesConservation Biology, 2020
Estimates of biodiversity change are essential for the management and conservation of ecosystems. Accurate estimates rely on selecting representative sites, but monitoring often focuses on sites of special interest.
A. Mentges   +4 more
semanticscholar   +1 more source

Selection Bias, Confounding, or Information Bias? [PDF]

open access: yesHypertension, 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   +3 more sources

Consequences de la sélection de variables sur l'interprétation des résultats en régression linéaire multiple [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2005
Consequences of variable selection on the interpretation of the results in multiple linear regression. A priori or a posteriori variable selection is a common practise in multiple linear regression.
Palm R., Akossou AYJ.
doaj  

Selection bias in estimating the relationship between prolonged ED boarding and mortality in emergency critical care patients

open access: yesJournal of the American College of Emergency Physicians Open, 2022
Objectives Studies have found that prolonged boarding time for intensive care unit (ICU) patients in the emergency department (ED) is associated with higher in‐hospital mortality.
Kevin Gardner   +6 more
doaj   +1 more source

Selection bias on intellectual ability in autism research: a cross-sectional review and meta-analysis

open access: yesMolecular Autism, 2019
BackgroundCurrent global estimates suggest the proportion of the population with autism spectrum disorder (ASD) who have intellectual disability (ID) is approximately 50%.
Ginny Russell   +5 more
semanticscholar   +1 more source

A Robust Classifier Under Missing-Not-At-Random Sample Selection Bias [PDF]

open access: yesarXiv, 2023
The shift between the training and testing distributions is commonly due to sample selection bias, a type of bias caused by non-random sampling of examples to be included in the training set. Although there are many approaches proposed to learn a classifier under sample selection bias, few address the case where a subset of labels in the training set ...
arxiv  

Impacts of the government-supported investments on the economic farm performance in Austria

open access: yesAgricultural Economics (AGRICECON), 2015
Farm investments in the European Union are supported by the governmental programmes. The evaluation of this programme is challenged through the voluntary participation and heterogeneous observation units.
Stefan KIRCHWEGER   +2 more
doaj   +1 more source

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