Hybrid workshop, both online and in person options.

Using free software for sample size & statistical power calculations

What is GPower? GPower is a free statistical software package for power and sample size analysis. It offers point-and-click functionality and covers a wide variety of statistical tests.

In this 1-day workshop, concepts of statistical power and relevant statistical tests are covered in a non-technical way. Designed to be hands-on, the workshop focuses on the practical application of statistical methods. There will be plenty of opportunities to access in-class support.

A basic knowledge of statistics is helpful but not essential. No prior experience using G*Power is assumed.

TOPICS COVERED:

• Understanding statistical power and the factors that influence it
• Using G*Power to:
o optimise sample sizes
o calculate effect sizes
o graphically display results for power analyses
• t-tests
• Chi-squared tests
• F-tests, including ANOVA fixed effects and repeated measures.