G*

G*Power

G*Power is a free, open source statistical power analysis software for a variety of tests including t-tests, F-tests, chi-square tests, and others. It supports Windows and Mac OS.
Latest: 3.1.9.7
Last checked: Jul 16, 2025 12:39pm
Rank: 4861/15140
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Overview

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License: FreewareInstaller: ZIP archiveWinget: Available
Product Page Support Page Download Page Installer File

Version & Lifecycle

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Current: 3.1.9.7 Oldest supported: 3.1.9.6 Predicted EOL: 2025-06-12 Avg cadence: Irregular, with updates noted in 2020 and 2024

Tags

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statistical power analysis sample size calculation freeware Windows Mac

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Packaging Notes

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Distributed as a ZIP file; requires unzipping and running GPowerNT.exe; may require Microsoft VC++ runtime

Notes

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Users must unzip the downloaded archive and run the executable. Microsoft VC++ runtime may be required. The software is free to download and use from Universität Düsseldorf's official site.

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