Worksheets to Master Power Analysis & Sequential Analysis

Calculators for sample size and sequential analysis like these are free and available online, but knowing how to use them correctly is what creates impact. These worksheets walk you through when to use each calculator, why it matters, and how to interpret the results. Along the way, you’ll build confidence in key concepts like Type I error (false detection), Type II error (failure to detect), confidence, and power. By practicing with these worksheets, you’ll learn how to calculate sample sizes for your own experiments. This is how I teach my students.