Power and Sample Size
DOI link for Power and Sample Size
Power and Sample Size book
This chapter is designed to give you an applied view of power for the most common study designs in epidemiology and preventive medicine: cohort studies, cross-sectional studies, and unmatched case-control studies. The chapter discusses the factors that influence power, the study design strategies that you can use to maximize your power, user-friendly approaches to calculating power, and how to best display your power calculations in a proposal. Throughout the chapter, I include annotated examples with strategies and tips.