Showing 381 - 400 results of 2,585 for search '"selection bias"', query time: 0.73s Refine Results
  1. 381

    Feasibility of collecting retrospective patient reported outcome measures (PROMs) in emergency hospital admissions by Esther Kwong, Nick Black

    Published 2018-11-01
    “…The extent to which this initial feasibility study was able to assess selection bias was limited to the age and sex of patients. …”
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    Article
  2. 382

    Effect of Jianpi Bushen formula for colon cancer patients who underwent adjuvant chemotherapy: Statistical analysis plan for a multicenter trial by Ruiming Zhao, Huijuan Cao, Lingyun Sun, Tong Zhang, Yun Xu, Shaohua Yan, Jun Mao, Jianping Liu, Yutong Fei, Yufei Yang

    Published 2023-01-01
    “…Further post-hoc analyses can be performed by referring to the SAP, and possible selection bias can be attenuated.…”
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    Article
  3. 383

    Physical activity trajectories at older age and all-cause mortality: A cohort study by Lamiaa Hassan, Peter Huhndorf, Rafael Mikolajczyk, Alexander Kluttig

    Published 2023-01-01
    “…In a sensitivity analysis we weighted the models to account for selection bias during follow-up. As a further sensitivity analysis, we excluded the first year of follow-up to account for reverse causation. …”
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    Article
  4. 384

    Implementation of a self-sampling HPV test for non-responders to cervical cancer screening in Japan: secondary analysis of the ACCESS trial by Misuzu Fujita, Kengo Nagashima, Minobu Shimazu, Misae Suzuki, Ichiro Tauchi, Miwa Sakuma, Setsuko Yamamoto, Hideki Hanaoka, Makio Shozu, Nobuhide Tsuruoka, Tokuzo Kasai, Akira Hata

    Published 2022-08-01
    “…To ensure autonomous participation with a minimum selection bias, opt-out consent was obtained from women who met the inclusion criteria, and written consent was obtained from those who underwent a self-sampling test. …”
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    Article
  5. 385

    Admission Grades as Predictors of Medical Students’ Academic Performance: A Cross-Sectional Study from Saudi Arabia by Ali Hendi, Mohammed S. Mahfouz, Ahmad Y. Alqassim, Anwar Makeen, Mohammed Somaili, Mohammed O. Shami, Abdellh A. Names, Alaa Darraj, Areej Kariri, Asma Ashiri, Abdulaziz H. Alhazmi

    Published 2022-10-01
    “…National studies are deemed essential to evaluate additional admission tests for medical school, an action that would minimize selection bias.…”
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    Article
  6. 386

    Physical activity trajectories at older age and all-cause mortality: A cohort study. by Lamiaa Hassan, Peter Huhndorf, Rafael Mikolajczyk, Alexander Kluttig

    Published 2023-01-01
    “…In a sensitivity analysis we weighted the models to account for selection bias during follow-up. As a further sensitivity analysis, we excluded the first year of follow-up to account for reverse causation.…”
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    Article
  7. 387

    Sampling challenges in a study examining refugee resettlement by Thompson Sandra C, Sulaiman-Hill Cheryl MR

    Published 2011-03-01
    “…</p> <p>Conclusions</p> <p>Snowball sampling, with multiple initiation points to reduce selection bias, was necessary to locate and identify participants, provide reassurance and break down barriers. …”
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    Article
  8. 388

    Disentangling jet modification in jet simulations and in Z+jet data by Brewer, Jasmine, Brodsky, Quinn, Rajagopal, Krishna

    Published 2022
    “…In this work, we study and quantify the impact of this selection bias on jet substructure observables so as to isolate effects caused by the modification of the substructure of jets by quenching. …”
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    Article
  9. 389

    Assessment of prognostic models for patients with acute pulmonary embolism by Elias, A

    Published 2016
    “…The survey showed that emergency physicians still rely mostly on their own clinical judgment when deciding about early discharge or complete outpatient management and the case-ascertainment study showed that if case-ascertainment is incomplete, selection bias may mean that event rates and prognosis will be underestimated, prognostic models will be overoptimistic and the results of different studies cannot be compared, contrasted or combined reliably. …”
    Thesis
  10. 390

    DETERMINATION OF DARK MATTER TYPE BY X-RAY SOURCES STATISTICS by A.V. Tugay

    Published 2014-10-01
    “…The type of DM is inspected with the Xgal sample of 5021 X-ray emitting galaxies observed by XMM-Newton. The selection bias of this sample is also analyzed.…”
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    Article
  11. 391

    The price is right!? A meta-regression analysis on willingness to pay for local food. by Iryna Printezis, Carola Grebitus, Stefan Hirsch

    Published 2019-01-01
    “…An analysis of the distribution of WTP measures suggests the presence of publication selection bias that favors larger and statistically significant results. …”
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    Article
  12. 392

    Impact of improved seed and inorganic fertilizer on maize yield and welfare: Evidence from Eastern Ethiopia by Musa Hasen Ahmed

    Published 2022-03-01
    “…The study uses primary data of maize farmers and a multinomial endogenous switching regression model to account for selection bias. The findings show that combining the two technologies boosts maize yield and consumption expenditure significantly than adopting the technologies in isolation. …”
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    Article
  13. 393

    Exploiting the Relationship between Farm-Level Yields and County-Level Yields for Applied Analysis by Scott Gerlt, Wyatt Thompson, Douglas Miller

    Published 2014-08-01
    “…County-level yield data are used in applied research and crop insurance policy in place of farm-level yield data, which are likely sparse, not broadly representative, and subject to selection bias. We exploit the fact that county-level yields are the aggregate of farm-level yields to derive bounds that can be reduced to direct relationships between county- and farm-level yields under certain conditions. …”
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    Article
  14. 394

    Case-Control Studies by Alonso Soto, Aleksandar Cvetkovic-Vega

    Published 2020-01-01
    “…Some variants of this design, such as incident and nested case studies and nested case-control studies (within a cohort) can reduce the risk of selection bias. The basic concepts related to this type of studies are reviewed.…”
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    Article
  15. 395

    Evaluating Automatic Model Selection. by Castle, J, Doornik, J, Hendry, D

    Published 2010
    “…Monte Carlo experiments examine the roles of post-selection bias corrections and diagnostic testing, and evaluate Autometrics’ capability in dynamic models by its cost of search versus costs of inference.…”
    Working paper
  16. 396

    Randomization in clinical studies by Chi-Yeon Lim, Junyong In

    Published 2019-06-01
    “…Randomization eliminates accidental bias, including selection bias, and provides a base for allowing the use of probability theory. …”
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    Article
  17. 397

    Access to Credit and Economic Well-Being of Rural Households: Evidence from Eastern India by Anjani Kumar, Ashok K. Mishra, Vinay K. Sonkar, Sunil Saroj

    Published 2020-01-01
    “…We evaluate the impact of access to credit on rural households' annual income using an endogenous switching regression approach, an increasingly popular method of tackling the selection bias issue in impact analyses. Using a large survey of rural households in eastern India, we find that access to credit is strongly associated with rural households' socioeconomic and demographic characteristics. …”
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    Article
  18. 398

    Sequential Adoption and Cost Savings from Precision Agriculture by David Schimmelpfennig, Robert Ebel

    Published 2016-01-01
    “…The USDA's Agricultural Resource Management Survey of corn producers is used to estimate a treatment-effects model that allows for selection bias. VRT contributes additional production cost savings when added to soil mapping, but not when done with yield mapping alone.…”
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    Article
  19. 399

    Race, School Discipline, and Magnet Schools by Karin Kitchens, NaLette Brodnax

    Published 2021-07-01
    “…Using matching techniques to minimize selection bias, we find that magnet schools in Tulsa are associated with a reduction in the racial suspension gap. …”
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    Article
  20. 400

    METODE KLASIFIKASI BERSTRUKTUR POHON DENGAN ALGORITMA CRUISE by Yasmin Erika F., Andriansyah Andriansyah

    Published 2014-05-01
    “…This is an advantage because inference from the tree sructures can be adversely affected by selection bias. These methods also improve interpretability of trees by reducing tree depht. …”
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    Article