Sampling Methods and Sample Size Determination in Clinical Research: An Educational Review [PDF]
Journal of General and Family MedicineClinical research validity depends critically on sound sampling methodology and adequate sample size determination, yet many published studies demonstrate deficiencies in these fundamental aspects.
Azzam Zrineh +2 more
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Sample size determination for time-to-event endpoints in randomized selection trials with generalized exponential distribution [PDF]
HeliyonRandomized selection trials are frequently used to compare experimental treatments that have the potential to be beneficial, but they often do not include a control group.
Muhammad Hamza Akbar +3 more
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Bayesian sample size determination for cost-effectiveness studies with censored data. [PDF]
PLoS ONE, 2018 Cost-effectiveness models are commonly utilized to determine the combined clinical and economic impact of one treatment compared to another. However, most methods for sample size determination of cost-effectiveness studies assume fully observed costs and
Daniel P Beavers, James D Stamey
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Two Measures for Sample Size Determination
Survey Research Methods, 2011 Social surveys often must estimate the sizes or the proportions of many small groups and differences among them. The discussion of the needed precision of the estimators and the corresponding sample size is difficult, in particular when lay persons are ...
Philippe Eichenberger +2 more
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An elaboration on sample size determination for correlations based on effect sizes and confidence interval width: a guide for researchers [PDF]
Restorative Dentistry & EndodonticsObjectivesThis paper aims to serve as a useful guide for sample size determination for various correlation analyses that are based on effect sizes and confidence interval width.Materials and MethodsSample size determinations are calculated for Pearson’s ...
Mohamad Adam Bujang
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DETERMINATION OF SAMPLE SIZE AND SAMPLING METHODS IN APPLIED RESEARCH [PDF]
Proceedings on Engineering Sciences, 2021 Sample size, sampling method and sampling technique plays a major role in social sciences, business, health science, agricultural science research and survey research. If the sample size is inappropriate it may lead to wrong inferences on the population.
T S Nanjundeswaraswamy, Shilpa Divakar
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Sample Size Determination [PDF]
ILAR Journal, 2002 Scientists who use animals in research must justify the number of animals to be used, and committees that review proposals to use animals in research must review this justification to ensure the appropriateness of the number of animals to be used.
Ralph B, Dell +2 more
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Tolerance Limits and Sample-Size Determination Using Weibull Trimmed Data
Axioms, 2023 Guaranteed-coverage and expected-coverage tolerance limits for Weibull models are derived when, owing to restrictions on data collection, experimental difficulties, the presence of outliers, or some other extraordinary reasons, certain proportions of the
Arturo J. Fernández
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Sample size determination for bibliographic retrieval studies
BMC Medical Informatics and Decision Making, 2008 Background Research for developing search strategies to retrieve high-quality clinical journal articles from MEDLINE is expensive and time-consuming. The objective of this study was to determine the minimal number of high-quality articles in a journal ...
Walter Stephen D +3 more
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Determination of Sample Size and Observation Units
International Journal of Assessment Tools in Education, 2019 The purpose of this study was to write programsto define sampling sizes and observation units by probability sampling methodsand to provide an idea for software developers. Thealgorithms of the programs were written in Python 3.
Tülin Acar
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