A conceptual introduction to power and sample size calculations using Stata®

Learn the basic concepts of power and sample size calculations. With definitions for alpha levels, statistical power, and effect size, as well as a brief look at Stata's interface and strategies for increasing statistical power, this video is a useful introduction for all subsequent power and sample size videos on the Stata YouTube channel. https://www.stata.com Copyright 2011-2019 StataCorp LLC. All rights reserved.