Calculation of the number of cases

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Definition
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A sample size calculation is used to determine the sample size required to detect a previously determined medically relevant difference at a defined significance level with a defined test strength. With the help of the sample size calculation, effects that actually exist should be recorded and at the same time there should be a certainty that no effect actually exists if no statistical difference has been calculated.

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Last updated on: 29.10.2020

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