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The Canadian Entomologist, 1953
The problem of sample size usually confronts the research worker in the initial stages of an investigation. Many short methods have been used for determining sample size such as extracting the square root of the number of boxes or taking a 10 percent sample.
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The problem of sample size usually confronts the research worker in the initial stages of an investigation. Many short methods have been used for determining sample size such as extracting the square root of the number of boxes or taking a 10 percent sample.
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Introduction to Sample Size Determination
2020Research is generally conducted to examine characteristics of a population. Studying entire population becomes expensive hence we examine a sample drawn from the population of interest to draw inferences. Except in census studies, all research is carried out on the basis of a sample.
Jai Prakash Verma, Priyam Verma
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On Bayesian sample size determination
Journal of Applied Statistics, 2011Three Bayesian methods are considered for the determination of sample sizes for sampling from the Laplace distribution – the distribution of time between rare events – with a normal prior. These methods are applied to the sizing of aircraft mid-air collisions in a navigation system or large flight path deviations of aircraft in air traffic management ...
Soheir M. Khamis +2 more
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On the determination of an optimal sample size
Scandinavian Actuarial Journal, 1954Abstract In works on sample survey theory and methods the sample size is usually regarded as determined by the sampling procedure and the total cost of the survey.
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2016
Basic theoretical basis for determining required sample sizes using various theories are set. Examples are used in each case.
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Basic theoretical basis for determining required sample sizes using various theories are set. Examples are used in each case.
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Sample Size Determination in Epidemiologic Studies
2005When planning a research project an epidemiologist must consider how many subjects should be studied. While factors such as available budget certainly present constraints on the maximum-number of subjects that might actually be included in a study, statistical considerations are extremely important.
Stanley Lemeshow, Janet D. Elashoff
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Determination of sample sizes in point estimations
Series Statistics, 1984''Let \(T_ N\) be an unbiased and consistent estimator of a parameter \(\vartheta\in R^ k\) (\(k\geq 1)\) based on the sample size N and let A be a neighbourhood of the origin in \(R^ k\).
Bernd Fritzsche, M. Riedel, R. Bergmann
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Determining the sample size in a clinical trial
Medical Journal of Australia, 2002Ideally, clinical trials should be large enough to detectreliably the smallest possible differences in the primaryoutcome with treatment that are considered clinicallyworthwhile. It is not uncommon for studies to be under-powered, failing to detect even large treatment effectsbecause of inadequate sample size.
Adrienne Kirby +2 more
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Sample Size and Power Determination
Journal of Quality Technology, 2015(2015). Sample Size and Power Determination. Journal of Quality Technology: Vol. 47, No. 2, pp. 205-206.
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The numbers game: Sample-size determination
American Journal of Infection Control, 1993Sample-size determination is a crucial component of study design. Estimates of sample size are influenced by the amount of change that must occur between study groups and the degree of risk that the investigator is willing to accept in evaluating the null hypothesis.
Jean M. Pottinger +4 more
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