The Bayesian Approach to Sample Size Calculations

Sample Size determination is generally done using a frequentist approach. However, Bayesian approaches can also be used allowing a researcher to take into account prior information as well as handle uncertainty about parameters used in the frequentist approach.

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Using Pilot Studies in Clinical Research

A pilot study is a smaller version of a planned study. The purpose of the pilot study is to test the design of the larger study to improve its likelihood of success. Unfortunately, there are several misconceptions about what a pilot study is for.

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