G*Power 3.1.9.2

Conduct statistical power analysis and calculate probabilities as well as some more test cases with the help of this powerful application
In order to determine the status of an ongoing activity you might need to view statistics and this is easily achievable with the help of applications. G*Power is an easy to use application especially designed for statistics aficionados and students that can offer users power analysis tools for different statistical tests.

Perform various statistics operations

The application is very easy to use, as you just have to choose the appropriate test type and the desired parameters using the drop-down menus. It can perform calculations for F, t and χ2 tests, z test families and some exact tests. The calculation and graph plotting is done in seconds.

There are several statistical tests that the program supports, depending on the test family you choose. It can perform correlation, regression, means, proportion, variances and other tests using five different types of power analysis.

Quick generation and export of data

After setting the required input parameters (which can also be automatically determined based on observed frequencies or probabilities), press the 'Calculate' button and you're done! The central and non-central distribution is displayed in a graph, while the output parameters are calculated in a separate grid.

G*Power offers you the possibility to generate a bi-dimensional plot for a user-defined range of values. The distribution plot can be copied to clipboard or saved for later reference. In addition to this, you can view, save or print a log of every analysis you made.

Easily determine probabilities

A probability calculator is also included, which you can use to view the result of any number of input mathematical and statistical expressions. The displayed result is set to the value of the last one you write, while between the expressions you can add comments to state your objective.

To end with

While it can be used by statistical offices or research institutions, G*Power is a useful tool that can help teachers explain statistics better and students learn on their own without much effort. It does not require much time to get acquainted with its features, providing the desired result in no time.

Reviewed by on July 21st, 2014


last updated on:
March 29th, 2014, 9:16 GMT
file size:
12.8 MB
price:
FREE!
developed by:
Department of Psychology
license type:
Freeware
operating system(s):
Windows XP / XP 64 bit / Vista / Vista 64 bit / 7 / 7 64 bit / 8 / 8 64 bit
category:
C: \ Science / CAD

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4.0/5

user rating 56

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7 Screenshots
G*Power - G*Power will provide users with a useful tool to make statistical power analysisG*Power - The Test family menu will offer a list of options like Exact, F / t X2 or z testsG*Power - Users will be able to access various test for the chosen class withi nthe Statistical test menuG*PowerG*PowerG*PowerG*Power
What's New in This Release:
  • Fixed a bug that could occur under very specific circumstances when transferring an effect size from the effect size drawer to the main window.
read full changelog
 

Application description

G*Power 3 is a major extension of, and improvement over, G*Power 2 . It covers statistical power analyses for many dif...

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