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Year Published: 2023

Time to Complete: 45 minutes

Course Type: Self-paced Online

Instructor: Angie Mae Rodday, PhD, MS

Learning Level: Fundamental

Primary Audience: Investigators (PI, Co-PI, Co-I), Data Managers

Prerequisite: Which Statistical Test Should I Use?

Course Collection(s): Research Design and Data Analysis


Empower your research with the right sample size

Learn how to write a sample size justification for your research proposal or grant application. This course will provide you with a comprehensive understanding of the importance of determining an appropriate sample size for your study. You will learn how to calculate the sample size needed to achieve sufficient power to detect the effect you are looking for in your study.

Learning Objectives

After completing this course, you will be able to:

  • Describe what parameters are needed for sample size/power calculations.
  • Estimate treatment/exposure effect, and variation needed for sample size/power calculations.
  • Identify other considerations for sample size/power calculations.
  • Create sample size justifications for two example research studies.

Available courses

Date Location Type Price
2024 Course: Open January 1 through December 31 Online Self-paced Online This Course is Free