Showing 301 - 320 results of 2,585 for search '"selection bias"', query time: 0.25s Refine Results
  1. 301

    Assessing methods for dealing with treatment switching in randomised controlled trials: a simulation study by Latimer Nicholas, Lambert Paul C, Morden James P, Abrams Keith R, Wailoo Allan J

    Published 2011-01-01
    “…These included simple methods which are commonly used in medical literature and may be subject to selection bias if patients switching are not typical of the population as a whole. …”
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    Article
  2. 302

    On safe post-selection for Bell tests with ideal detectors: Causal diagram approach by Pawel Blasiak, Ewa Borsuk, Marcin Markiewicz

    Published 2021-11-01
    “…This is because conditioning on the outcomes is a source of non-causal correlations, known as a $\textit{selection bias}$, rising doubts whether the conclusion concerns the actual causal process or maybe it is just an effect of processing the data. …”
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    Article
  3. 303

    A tailored use of the mahalanobis distance matching for causal effects estimation: A simulation study by Lateef Amusa, Delia North, Temesgen Zewotir

    Published 2022-07-01
    “…Selection bias is a fundamental reason why the estimation of treatment effects in observational studies is not as straightforward as in well-designed experiments. …”
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    Article
  4. 304

    Evaluating the Impact of Large-Scale Agricultural Investments on Household Food Security Using an Endogenous Switching Regression Model by Wegayehu Fitawek, Sheryl L. Hendriks

    Published 2021-03-01
    “…An endogenous switching regression model was adopted to control for a possible selection bias due to unobserved factors. It was found that households with members employed by large-scale agricultural investment companies were more likely larger households headed by younger migrant males holding smaller plots and fewer livestock than non-engaged households. …”
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    Article
  5. 305

    Near-Optimal A-B Testing by Bhat, Nikhil, Farias, Vivek F, Moallemi, Ciamac C, Sinha, Deeksha

    Published 2021
    “…In a set of numerical experiments, we demonstrate that our method simultaneously offers better statistical efficiency and less selection bias than state-of-the-art competing biased coin designs.…”
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    Article
  6. 306

    Implementation of the trial emulation approach in medical research: a scoping review by Giulio Scola, Anca Chis Ster, Daniel Bean, Nilesh Pareek, Richard Emsley, Sabine Landau

    Published 2023-08-01
    “…Different statistical methods were used to address confounding at baseline and selection bias, predominantly conditioning on the confounders (N = 18/49, 37%) and inverse probability of censoring weighting (N = 7/20, 35%) respectively. …”
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  10. 310

    A critical appraisal of epidemiological studies comes from basic knowledge: a reader's guide to assess potential for biases by van Duijn Cornelia M, D'Ugo Domenico, Persiani Roberto, La Torre Giuseppe, Boccia Stefania, Ricciardi Gualtiero

    Published 2007-03-01
    “…This review focuses on the concepts of confounding, selection bias and information bias, utilising explanatory examples and simple rules to recognise and, when possible, to correct for them. …”
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  11. 311
  12. 312

    Assessing the joint effect of population stratification and sample selection in studies of gene-gene (environment) interactions by Cheng KF, Lee JY

    Published 2012-01-01
    “…If the conservative p-value is smaller than the significance level, we can safely claim that the association test is significant regardless of the presence of PS or not, or if there is any selection bias. We also identify conditions for the null bias. …”
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  13. 313

    Bias due to sample selection in propensity score matching for a supportive housing program evaluation in New York City. by Sungwoo Lim, Sue M Marcus, Tejinder P Singh, Tiffany G Harris, Amber Levanon Seligson

    Published 2014-01-01
    “…The purpose of the study was to assess potential selection bias using one-to-one greedy matching versus optimal full matching as part of an evaluation of supportive housing in New York City (NYC). …”
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  14. 314

    An Empirical Study of Univariate and Genetic Algorithm-Based Feature Selection in Binary Classification with Microarray Data by Michael Lecocke, Kenneth Hess

    Published 2006-01-01
    “…We also find that the univariate approach had higher optimism bias and lower selection bias compared to both GA approaches.…”
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    Article
  15. 315

    The need for a clinical case definition in test-negative design studies estimating vaccine effectiveness by Sheena G. Sullivan, Arseniy Khvorov, Xiaotong Huang, Can Wang, Kylie E. C. Ainslie, Joshua Nealon, Bingyi Yang, Benjamin J. Cowling, Tim K. Tsang

    Published 2023-08-01
    “…We provide an html tool for researchers to explore site-specific sources of selection bias in their own studies. We recommend all groups consider the potential for selection bias in their vaccine effectiveness studies, particularly when using administrative data.…”
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    Article
  16. 316

    Adoption and income effects of new agricultural technology on family farms in China. by Fang Wu

    Published 2022-01-01
    “…After controlling for the selection bias, the adoption of new agricultural technologies has a positive and significant impact on family farms' income. …”
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    Article
  17. 317

    Does Land Transfer Improve Farmers’ Quality of Life? Evidence from Rural China by Qiang He, Xin Deng, Chuan Li, Fangxia Kong, Yanbin Qi

    Published 2021-12-01
    “…As land transfer may be a self-selection behaviour, it may be subject to selection bias such that traditional measurement methods are unable to effectively estimate its quantitative impact. …”
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    Article
  18. 318

    Exploring causality from observational data: An example assessing whether religiosity promotes cooperation by Daniel Major-Smith

    Published 2023-01-01
    “…Causal inference from observational data is notoriously difficult, and relies upon many unverifiable assumptions, including no confounding or selection bias. Here, we demonstrate how to apply a range of sensitivity analyses to examine whether a causal interpretation from observational data may be justified. …”
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    Article
  19. 319

    Adoption and income effects of new agricultural technology on family farms in China by Fang Wu

    Published 2022-01-01
    “…After controlling for the selection bias, the adoption of new agricultural technologies has a positive and significant impact on family farms’ income. …”
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    Article
  20. 320

    Walkable neighborhoods and obesity: Evaluating effects with a propensity score approach by Lori Kowaleski-Jones, Cathleen Zick, Ken R. Smith, Barbara Brown, Heidi Hanson, Jessie Fan

    Published 2018-12-01
    “…Keywords: Obesity, Neighborhood walkability, Propensity score matching, Non-random selection bias, Built environment…”
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    Article