1.Introduction Power and sample size estimation constitutes an important component of designing and planning modern scientific studies.It provides information for assessing the feasibility of a study to detect treatme...1.Introduction Power and sample size estimation constitutes an important component of designing and planning modern scientific studies.It provides information for assessing the feasibility of a study to detect treatment effects and for estimating the resources needed to conduct the project.This tutorial discusses the basic concepts of power analysis and the major differences between hypothesis testing and power analyses.We also展开更多
基金supported in part by the Clinical and Translational Science Collaborative of Cleveland,UL1TR000439the University of Rochester,5-27607,from the National Institutes of Health
文摘1.Introduction Power and sample size estimation constitutes an important component of designing and planning modern scientific studies.It provides information for assessing the feasibility of a study to detect treatment effects and for estimating the resources needed to conduct the project.This tutorial discusses the basic concepts of power analysis and the major differences between hypothesis testing and power analyses.We also
