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G*Power For Windows

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About G*Power

GPower is a powerful and versatile tool that empowers users to perform statistical power analyses across a wide range of tests, including t tests, F tests, χ² tests, z tests, and certain exact tests. With GPower, users can easily compute effect sizes and visualize the results of power analyses in a graphical format. Whether you need to determine the required sample size or assess statistical power, G*Power offers essential functionality for accurate and insightful statistical analyses.

Key Features

1.Comprehensive Power Analysis
GPower provides a comprehensive set of tools for conducting statistical power analyses. Whether you are performing t tests, F tests, χ² tests, z tests, or specific exact tests, GPower allows you to assess statistical power and determine the necessary sample size to achieve desired levels of significance.

2.Effect Size Computation
With G*Power, users can calculate effect sizes, an important metric that measures the practical significance of statistical findings. By accurately computing effect sizes, users can gain deeper insights into the magnitude of observed effects and evaluate the impact of their findings.

3.Graphical Result Presentation
One of the key features of G*Power is its ability to present the results of power analyses in a visually appealing and informative manner. The tool allows users to display graphical representations of statistical power analyses, enabling a clear and intuitive understanding of the findings.

4.User-Friendly Interface
GPower boasts a user-friendly interface that simplifies power analyses. The intuitive design ensures that users, regardless of their statistical expertise, can navigate the tool and perform analyses with ease. GPower streamlines the process of determining sample sizes and evaluating statistical power, making it accessible to a wide range of users.

GPower is an essential tool for researchers and statisticians who need to perform accurate power analyses and assess the practical significance of their findings. With its comprehensive range of power analysis options, effect size computation, graphical result presentation, and user-friendly interface, GPower simplifies the statistical analysis process and provides valuable insights for informed decision-making. Empower your statistical analyses with G*Power and unlock the true potential of your research.

Reviewed by Department of Psychology


Updated onApril 8, 2020
DeveloperDepartment of Psychology
Operating systemWindows 10, Windows 8, Windows Vista, Windows, Windows 7, Windows XP

Old Versions

April 8, 2020
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G*Power for PC
Analyze different types of power and compute size with graphics options.
Free Downloadfor Windows

How to download and Install G*Power on Windows PC

  • Click on the Download button to start downloading G*Power for Windows.
  • Open the .exe installation file in the Downloads folder and double click it.
  • Follow the instructions in the pop-up window to install G*Power on Windows PC.
  • Now you can open and run G*Power on Windows PC.