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On Sample Size Determination [PDF]
MATHEMATICAL JOURNAL OF INTERDISCIPLINARY SCIENCES, 2014 One of the questions most frequently asked of a statistician is: how big should the sample be? Managers are anxious to obtain an answer to this fundamental question during the planning phase of the survey since it impacts directly on operational considerations such as the number of interviewers required.
K Muralidharan
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Sample size determination for bibliographic retrieval studies [PDF]
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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Sample size determination with a pilot study.
PLoS ONE, 2022 We analyse standard confidence intervals for the mean of a finite population, with a view to sample size determination. We first consider a standard method for sample size determination based on the assumption of knowledge of the population variance ...
Ben O'Neill
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Concepts in sample size determination
Indian Journal of Dental Research, 2012 Investigators involved in clinical, epidemiological or translational research, have the drive to publish their results so that they can extrapolate their findings to the population.
Umadevi K Rao
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Sample Size Determination for Food Sampling
Journal of Food Protection, 2023 Industry and public health agencies sample and test food products for various purposes related to food safety and quality. Methods of sample selection and sample size determination are important in designing an optimal sampling plan.
Shizhen S. Wang +3 more
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On the Determination of Sample Size
Epidemiology, 2003 Epidemiologists face issues of sample size every time they design a study. Sample size determi? nation has two distinct aspects. One is the tech? nical aspect of how to calculate the sample size re? quired to meet the desired Type I error rate and the power for any specified state of nature. (By "state of nature," I mean the exact point in the relevant
David M. Umbach
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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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Fast Sample Size Determination for Bayesian Equivalence Tests [PDF]
arXiv, 2023 Equivalence testing allows one to conclude that two characteristics are practically equivalent. We propose a framework for fast sample size determination with Bayesian equivalence tests facilitated via posterior probabilities. We assume that data are generated using statistical models with fixed parameters for the purposes of sample size determination.
Hagar, Luke, Stevens, Nathaniel T.
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Determination of Sample Size and Observation Units [PDF]
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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Sample Size Determination for Logistic Regression: A Simulation Study [PDF]
, 2014 This article considers the different methods for determining sample sizes for Wald, likelihood ratio, and score tests for logistic regression. We review some recent methods, report the results of a simulation study comparing each of the methods for each ...
Stephen Bush
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