Sample size determination in bioequivalence studies using statistical assurance. [PDF]
Br J Clin Pharmacol, 2019 Bioequivalence (BE) trials aim to demonstrate that the 90% confidence interval of the T/R‐ratio of the pharmacokinetic metrics between two formulations (test [T] and reference [R]) of a drug is fully included in the acceptance interval [0.80, 1.25 ...
Ring A +5 more
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Sample size determination for GEE analyses of stepped wedge cluster randomized trials. [PDF]
Biometrics, 2018 In stepped wedge cluster randomized trials, intact clusters of individuals switch from control to intervention from a randomly assigned period onwards. Such trials are becoming increasingly popular in health services research.
Li F, Turner EL, Preisser JS.
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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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Sample size determination for clinical research [PDF]
Muscle Ligaments and Tendons Journal, 2019 Calculating the sample size is a most important determinant of statistical power of a study. A study with inadequate power, unless being conducted as a safety and feasibility study, is unethical. However, sample size calculation is not an exact science, and therefore it is important to make realistic and well researched assumptions before choosing an ...
Dehui Wang +3 more
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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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Asymmetric Loss Functions and Sample Size Determination: A Bayesian Approach
Austrian Journal of Statistics, 2016 In designing monitoring systems for public health tasks it can be important to give different weights to the cases of under- and overestimation of a binomial parameter. We show how asymmetric loss functions can be used for this aim.
Hans Peter Stüger
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Methods for sample size determination in cluster randomized trials. [PDF]
Int J Epidemiol, 2015 Background: The use of cluster randomized trials (CRTs) is increasing, along with the variety in their design and analysis. The simplest approach for their sample size calculation is to calculate the sample size assuming individual randomization and ...
Rutterford C, Copas A, Eldridge S.
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On a generalizable approach for sample size determination in Bayesian t tests. [PDF]
Behav Res MethodsWong TK, Tendeiro JN.
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Sample-size determination for the Bayesian t test and Welch's test using the approximate adjusted fractional Bayes factor. [PDF]
Behav Res Methods, 2021 Fu Q, Hoijtink H, Moerbeek M.
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