Behavior Research Methods

, Volume 39, Issue 2, pp 175–191

G*Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences

Articles From the SCiP Conference

DOI: 10.3758/BF03193146

Cite this article as:
Faul, F., Erdfelder, E., Lang, AG. et al. Behavior Research Methods (2007) 39: 175. doi:10.3758/BF03193146


G*Power (Erdfelder, Faul, & Buchner, 1996) was designed as a general stand-alone power analysis program for statistical tests commonly used in social and behavioral research. G*Power 3 is a major extension of, and improvement over, the previous versions. It runs on widely used computer platforms (i.e., Windows XP, Windows Vista, and Mac OS X 10.4) and covers many different statistical tests of thet, F, and χ2 test families. In addition, it includes power analyses forz tests and some exact tests. G*Power 3 provides improved effect size calculators and graphic options, supports both distribution-based and design-based input modes, and offers all types of power analyses in which users might be interested. Like its predecessors, G*Power 3 is free.

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Copyright information

© Psychonomic Society, Inc. 2007

Authors and Affiliations

  1. 1.Institut für PsychologieChristian-Albrechts-UniversitätKielGermany
  2. 2.Lehrstuhl für Psychologie IIIUniversität MannheimMannheimGermany
  3. 3.Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany