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

• F test,
• t test,
• χ²-test and
• z test families and some
• exact tests.

G*Power 3 offers five different types of statistical power analysis:

• A priori (sample size N is computed as a function of power level 1-β, significance level α, and the to-be-detected population effect size)
  
• Compromise (both α and 1-β are computed as functions of effect size, N, and an error probability ratio q = β/α)
  
• Criterion (α and the associated decision criterion are computed as a function of 1-β, the effect size, and N)
  
• Post-hoc (1-β is computed as a function of α, the population effect size, and N)
  
• Sensitivity (population effect size is computed as a function of α, 1-β, and N)
  

G*Power 3 provides improved effect size calculators and graphics options. It supports both a distribution-based and a design-based input mode.

G*Power 3 is available for Mac OS X 10.4 and Windows XP/Vista. G*Power 3 is free.

What works
All the calculation work well.
All the tables can been seen.

What does not
No plot output at all

What was not tested
Print and Save Plot options.

Additional Comments

Just follow the installation. It will installs VC++ runtime redistribute automatically.

	Distribution	Test date	Wine version	Installs?	Runs?	Rating	Submitter
Current	Fedora 8 x86_64	Mar 30 2008	0.9.56.	Yes	Yes	Silver	Tommy He