5.2 Graphics for Power and Sample Size

This lecture is about graphics for power and sample size. We will talk about power curves, how to choose a graphic that tells the desired story, and look into different inputs that affect power. Some questions to consider while completing this lesson include:

  • What is the relationship between intracluster correlation and power?
  • What is the relationship between cluster size and power?

Learning Objectives

  • Describe power curves.
  • Decide how to choose a graphic that best tells the desired story.
  • Describe how design inputs affect power.

Video Tutorial

Lecture Notes: 5.2 Graphics for Power and Sample Size

Video Quiz