In this situation, the power analysis should reflect the multiple testing approach to be used.
The result of this power analysis is shown by the green curves in Figure 2.
To show that this alternative design does not require unfeasibly large numbers of animals, we performed a statistical power analysis (see Methods).
Our power analysis reveals that we might have missed a positive result if all non-responders had answered in a way to favor an intervention effect.
Using differential power analysis, data is collected from radio frequency energy that leaks out of the card (its "side channels").
Besides the power analysis, there are less formal methods for selecting the number of experimental units.
Statistical power analysis for the behavior sciences (2nd ed.)
For applications where devices may fall into the physical possession of an adversary, protection against power analysis is generally a major design requirement.
However, such a power analysis might be considered conservative for studies in which larger magnitude fold-changes are expected.
Virginia Organizing focuses on a diverse set of issues each year, based on a power analysis that is completed every spring.