Abstract
A basic understanding of statistical methodology is essential, both for designing quality research projects and for evaluating the medical literature. Careful statistical planning, including the selection of study endpoints, the determination of the required sample size, and the selection of statistical tests to be used in the data analysis, is important to ensure a successful research project. The purpose of this article is to provide a basic review of statistical terms and methods for both the researcher and the clinician, as well as to clarify questions that need to be answered prior to embarking on an experimental study. The advantages of collaborating with statistical consultants, and some guidelines for such collaborations, are discussed as well.
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