Effect Size Statistics, Power, and Sample Size Calculations
Workshops
Calculating Power and Sample Size
This workshop will get you up to speed on the meaning and logic of power, sample size, and how to calculate estimates. It includes demonstrations of power calculations for six different studies using three types of power calculation software.
The Craft of Statistical Analysis Webinars
(free recording)
Articles at The Analysis Factor
- The Effect Size: The Most Difficult Step in Calculating Sample Size Estimates
- How to Calculate Effect Size Statistics
- Three Issues in Sample Size Estimates for Multilevel Models
- Sample Size Estimates for Multilevel Randomized Trials
- 5 Reasons to Run Sample Size Calculations Before Collecting Data
- 5 Steps for Calculating Sample Size
- Power and Sample Size Calculations
- 5 Ways to Increase Power in a Study
- A Comparison of Effect Size Statistics
