{"product_id":"power-and-sample-size-in-catherine-m-crespi-9781138591622","title":"Power and Sample Size in R","description":"\u003cp\u003e\u003ci\u003ePower and Sample Size in R\u003c\/i\u003e guides the reader through power and sample size calculations for a wide variety of study outcomes and designs and illustrates their implementation in R software. It is designed to be used as a learning tool for students as well as a resource for experienced statisticians and investigators. \u003c\/p\u003e\u003cp\u003eThe book begins by explaining the process of power calculation step by step at an introductory level and then builds to increasingly complex and varied topics. For each type of study design, the information needed to perform a calculation and the factors that affect power are explained. Concepts are explained with statistical rigor but made accessible through intuition and examples. Practical advice for performing sample size and power calculations for real studies is given throughout.\u003c\/p\u003e\u003cp\u003eThe book demonstrates calculations in R. It is integrated with the companion R package powertools and also draws on and summarizes the capabilities of other R packages. Only a basic proficiency in R is assumed.\u003c\/p\u003e\u003cp\u003eTopics include comparison of group means and proportions; ANOVA, including multiple comparisons; power for confidence intervals; multistage designs; linear, logistic and Poisson regression; crossover studies; multicenter, cluster randomized and stepped wedge designs; and time to event outcomes. Chapters are also devoted to designing noninferiority, superiority by a margin and equivalence studies and handling multiple primary endpoints.\u003c\/p\u003e\u003cp\u003eBy emphasizing statistical thinking about the factors that influence power for different study designs and outcomes as well as providing R code, this book equips the reader with the knowledge and tools to perform their own calculations with confidence.\u003c\/p\u003e\u003cp\u003eKey Features: \u003c\/p\u003e\u003cul\u003e \u003cli\u003eExplains power and sample size calculation for a wide variety of study designs and outcomes\u003c\/li\u003e \u003cli\u003eSuitable for both students and experienced researchers\u003c\/li\u003e \u003cli\u003eHighlights key factors influencing power and provides practical tips for designing real studies\u003c\/li\u003e \u003cli\u003eIncludes extensive examples with R code\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Catherine M. Crespi\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1138591629\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781138591622\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e CRC Press\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 02\/06\/2025\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 354\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.53lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.21h x 6.14w x 0.88d","brand":"Catherine M. Crespi","offers":[{"title":"Hardcover","offer_id":46571239670015,"sku":"9781138591622","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_fa76da20-a35c-4860-983b-002a05361207.jpg?v=1738807653","url":"https:\/\/www.whiterainbookhouse.com\/products\/power-and-sample-size-in-catherine-m-crespi-9781138591622","provider":"WR Book House","version":"1.0","type":"link"}