Training and Events
What Sample Size Do I Need?
|University of Southampton|
Professor Dankmar Bohning
University of Southampton, Building 39, Highfield, Southampton, Hants
View in Google Maps (SO17 1BJ)
Sample size determination is a critical statistical component at the planning stage of a study and is increasingly requested by regulatory authorities in a number of disciplines. This course provides a practical introduction to the objective determination of sample size. The role of power is explained and how different factors affect sample size determination, primarily in the context of hypothesis testing. A number of common hypothesis testing situations are considered. R, SAS or Stata may be used for practical work.
Choosing an appropriate sample size is a common problem and should be given due consideration in any research proposal, as an inadequate sample size invariably leads to wasted resources. This course aims to give a practical introduction to sample size determination in the context of some commonly used significance tests.
Examples from a scientific background will be used to highlight the problems associated with sample size determination and suggest potential solutions. Practical work will be based around the statistical computing packages R, SAS and Stata. Formulae and algebraic notation will be kept to a minimum.
Choice of Software
Practical work may be done in one of the following statistical packages for the duration of the course: R, SAS or Stata.
Intermediate (some prior knowledge)
University of Southampton Staff and Students - £256
Website and registration
R, SAS, Stata
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