Power and Sample Size in R

This book guides the reader through power and sample size calculations for a variety of study outcomes and designs and illustrates their implementation in R. It is designed to be used as a learning tool for students as well as a resource for experienced statisticians and investigators.

Catherine M. Crespi is Professor in the Department of Biostatistics at the Jonathan and Karin Fielding School of Public Health, University of California Los Angeles. Her areas of specialization include trial design and analysis, multilevel modelling, longitudinal data and multivariate statistics. She is a Fellow of the American Statistical Association and an officer of the International Biometric Society.