GPower 3.1
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GPower 3.1

Free Calculates the statistical power of various tests
3.9 
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Latest version:
3.1.97 See all
Developer:
Heinrich-Heine-Universität Düsseldorf
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Use a one-way or a multi-way ANOVA to compute the power of statistical tests like chi-square-tests, t-test, F-tests, Z-tests, etc. The tool takes into account several variables including the number of groups, significance level, effect size, etc.

G*Power is a tool to compute statistical power analyses for many different t tests, F tests, χ2 tests, z tests and some exact tests. G*Power can also be used to compute effect sizes and to display graphically the results of power analyses. The software also allows you to generate graphs based on the data you input.

Comments (3)

3.9
Rating
84 votes
5 stars
45
4 stars
15
3 stars
6
2 stars
5
1 stars
13
User

Your vote:

J
rating Jose Silva Belchior
Superb statistical software. Congratulations

4 months ago Was it helpful?  yes(0) no(0) | Reply
S
rating Sherri Turner
Love It. Journal editors accept this as a valid way to calculate power.

Was it helpful?  yes(2) no(0) | Reply
S
su kalyar hlaing
That is very useful for sample size calculation.

Was it helpful?  yes(2) no(1) | Reply