Showing 401 - 420 results of 2,032 for search '"selection bias"', query time: 0.23s Refine Results
  1. 401

    AN EVALUATION OF FARMERS’ PERCEPTIONS OF AND ADAPTATION TO THE EFFECTS OF CLIMATE CHANGE IN KENYA by Hilary K. Ndambiri, Cecilia N. Ritho, Stephen G. Mbogoh

    Published 2013-07-01
    “…The Heckman probit model was fitted to the data to avoid sample selection bias since not every farmer who may perceive climate change responds by adapting. …”
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    Article
  2. 402

    Is It Possible to Know Cosmological Fine-tuning? by Daniel Andrés Díaz-Pachón, Ola Hössjer, Calvin Mathew

    Published 2024-01-01
    “…Recent developments have found estimates of these probabilities that circumvent previous concerns of measurability and selection bias. However, the question remains whether fine-tuning can indeed be known. …”
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    Article
  3. 403

    Mortality in sleep apnoea syndrome: a review of the evidence by P. Lavie

    Published 2007-12-01
    “…It is as yet unclear if this finding represents a selection bias, differences in apnoea severity or in compliance with treatment between young and old patients, or an adaptation to the syndrome with age. …”
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    Article
  4. 404

    How does climate shock affect technology adoption in rice production? by Thai Phan Nguyen, Duc Kien Nguyen, Quang Dung Truong

    Published 2025-01-01
    “…This study utilised VARHS (The Vietnam Access to Resources Household Survey) panel data from 2012 to 2018 and employed regression analysis following the application of propensity score matching (PSM) to address potential selection bias caused by drought and flood shocks. The findings indicated that households tend to adopt the improved variety of rice and organic fertilisers since households suffer the shock from the drought. …”
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    Article
  5. 405

    Effective Field Theory for jet substructure in heavy ion collisions by Varun Vaidya

    Published 2021-11-01
    “…As an example, I consider dijet events that accompany the formation of a weakly coupled long lived Quark Gluon Plasma (QGP) medium in a heavy ion collision and look at an observable insensitive to jet selection bias: the simultaneous measurement of jet mass along with the transverse momentum imbalance between the jets that are groomed to remove soft radiation. …”
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    Article
  6. 406

    Does contract farming affect technical efficiency? Evidence from soybean farmers in Northern Ghana by Ayeduvor Selorm, D. B. S. Sarpong, Irene S. Egyir, Akwasi Mensah Bonsu, Henry An

    Published 2023-03-01
    “…We use propensity score matching to reduce bias from observables, and then estimate a stochastic production frontier model that addresses selection bias arising from unobservable variables. We find that the technical efficiency levels of contract farmers are 77 percent compared with 69 percent for non-contract farmers. …”
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    Article
  7. 407

    Critical thinking in nursing and midwifery learning: Quantitative and qualitative review by Ibtissam Atif, Nabila Elamri, Abdellah Gantare

    Published 2024-02-01
    “…The quality of the articles has been verified by assessing the risk of bias (selection bias, detection bias, and interpretation bias) and using the Standards for Quality Improvement Reporting Excellence method. …”
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    Article
  8. 408

    Does environmental innovation improve investment efficiency? by Ijaz Ur Rehman, Faisal Shahzad, Usama Laique, Muhammad Abdullah Hanif

    Published 2024-01-01
    “…Our results are robust to alternative measures of eco-innovation, endogeneity, and sample selection bias.…”
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    Article
  9. 409

    Benchmarking Strategies for Measuring the Quality of Healthcare: Problems and Prospects by Pietro Giorgio Lovaglio

    Published 2012-01-01
    “…Specific challenges of benchmarking strategies, such as the risk of risk adjustment (case-mix fallacy, underreporting, risk of comparing noncomparable hospitals), selection bias, and possible strategies for the development of consistent benchmarking analyses, are discussed. …”
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    Article
  10. 410

    Interaction Design of Educational App Based on Collaborative Filtering Recommendation by Ying Xu, Tse-Kian Neo, Hin Hew Soon

    Published 2022-01-01
    “…Simultaneously, this paper combines user activity, item popularity, and time factors to comprehensively measure user visibility of items and incorporates them into the collaborative filtering recommendation algorithm in order to effectively mitigate the effects of data sparsity and user selection bias and improve recommendation results.…”
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    Article
  11. 411

    The Impact of Agricultural Cooperatives on Efficiency and Productivity: Evidence from Olive-growing Farms in West Bank of Palestine by Kenichi KASHIWAGI

    Published 2020-09-01
    “…We employed propensity score matching to reduce self-selection bias in becoming a member of the cooperative. …”
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    Article
  12. 412

    Two-way minimization: a novel treatment allocation method for small trials. by Lan-Hsin Chen, Wen-Chung Lee

    Published 2011-01-01
    “…When there are important prognostic factors to be balanced in the study, the method achieves the highest power and the smallest variance among randomization methods that are resistant to selection bias. The allocation can be done in real time and the subsequent data analysis is straightforward. …”
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    Article
  13. 413

    The Social Justice Impact of the Transit-Oriented Development by Seunghoon Kim

    Published 2020-12-01
    “…These indicate the existence of the selection bias of TOD implementation, justifying the adoption of the PSM method.…”
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    Article
  14. 414

    The impact and effectiveness of China’s entrepreneurship policy for back-home migrant workers by Xianzhou Zhao, Rob Kim Marjerison, Chuanyu Peng

    Published 2024-05-01
    “…Using survey data from the provinces of; Zhejiang, Henan, and Guizhou with propensity score matching to control selection bias, the study indicates that the overall entrepreneurship policy has a significant positive impact on the probability of entrepreneurial entry. …”
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    Article
  15. 415

    The impact of the educational marriage-matching model on the household income gap by Congjia Huo, Lingming Chen

    Published 2023-01-01
    “…Propensity score matching was used to correct possible selection bias and estimate the net effect of marital education matching on household income gaps. …”
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    Article
  16. 416

    Causal diagrams and the cross-sectional study by Shahar E, Shahar DJ

    Published 2013-03-01
    “…A side-by-side analysis showed that both designs call for a tradeoff between information bias and variance and that neither offers immunity to sampling colliding bias (selection bias). Confounding bias does not discriminate between the two designs either. …”
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    Article
  17. 417

    Does Adoption of Biofortification Increase Return on Investment? Evidence from Wheat Farmers in China by Jing Zeng, Han Li, Yifan Tang, Ping Qing

    Published 2022-08-01
    “…An endogenous switching regression model that accounts for selection bias was used in the research. The empirical results revealed that the adoption of biofortification has a positive and statistically significant impact on ROI. …”
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    Article
  18. 418

    Capital misallocation in China : financial frictions or policy distortions? by Wu, Guiying Laura

    Published 2019
    “…This paper designs an identification strategy to separate their effects on average MRPK dispersion across firm ownership, as the average treatment effect on the treated and the selection bias from a policy intervention. Financial frictions are estimated to cause an aggregate TFP loss of 8.3 percent on the intensive margin, which accounts for 30 percent of the capital misallocation observed in China. …”
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    Journal Article
  19. 419

    Do natural resources attract non-resource FDI? by Van der Ploeg, R, Poelhekke, S

    Published 2010
    “…Our main findings are robust to different measures of resource reserves and the oil price and to allowing for sample selection bias.…”
    Working paper
  20. 420

    Is the care system to blame for the poor educational outcomes of children looked after? Evidence from a systematic review and national database analysis by Luke, N, O'Higgins, A

    Published 2018
    “…Taken together, the findings suggest that while research demonstrates an important attainment gap between children in care and children in the general population, this difference is reduced and in many cases disappears when other important factors are taken into consideration to reduce selection bias. We find little evidence that being in care is detrimental to the educational outcomes of children looked after, but suggest that given the heterogeneity of the population, special attention should be paid to different groups of children and their particular needs while in care.…”
    Journal article