Sample Size Calculation for Epidemiologic Studies: Principles and Methods

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Dades bibliogràfiques
Publicat a:	Archives of Iranian Medicine vol. 16, no. 5 (May 2013), p. 295-300
Autor principal:	Kamangar, Farin, MD, PhD
Altres autors:	Islami, Farhad, MD, PhD
Publicat:	Academy of Medical Sciences of I.R. Iran
Matèries:	Epidemiologic Methods Epidemiologic Studies Models, Statistical Research Design > statistics & numerical data Sample Size Software
Accés en línia:	Citation/Abstract Full Text Full Text - PDF
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Descripció
Resum:	This paper discusses the statistical principles, methods, and software programs used to calculate sample size. In addition, it reviews the practical challenges faced in calculating sample size. We show that because of such challenges, statistical calculations often do not provide us with a clear-cut number for the study sample size; rather they suggest a range of reasonable numbers. The paper also discusses several important nonstatistical considerations in determination of sample size, such as novelty of the study and availability of resources.
ISSN:	1029-2977 1735-3947
Font:	Health & Medical Collection