Power Analysis

With a power analysis you can determine the sample size (number of participants) you need in your experimental study to detect an effect of a certain size. Underpowered studies often lead to reproducibility problems. A power analysis can prevent this from the outset.

More about:

Tools:

  • G*Power (a tool to compute power analyses for many different statistical tests)
  • R package pwr (statistical power analysis in R)
  • R package BFDA (for Bayesian sample size planning)