A priori power analysis

Do you have any questions?

Primer on power analysis

  • You can read a primer on power analysis here (?) 

Examples from PSI

  • Example 1
  • Example 2

Tools

There are a variety of tools tailored to types of study designs.

Tool Description Link
G* Power Provides power analysis for t tests, F tests, χ2 tests, z tests and some exact tests https://www.psychologie.hhu.de/arbeitsgruppen/allgemeine-psychologie-und-arbeitspsychologie/gpower

Superpower

 R package for simulation-based power analysis for factorial analysis of variance designs

R package: https://doi.org/10.1177/2515245920951503

Point-and-click app for specific functions:

  • ANOVA-exact: https://arcstats.io/shiny/anova-exact/
  • ANOVA-power: https://arcstats.io/shiny/anova-power/