Current sample size conventions: Flaws, harms, and alternatives
نویسندگان
چکیده
منابع مشابه
Current sample size conventions: Flaws, harms, and alternatives
BACKGROUND The belief remains widespread that medical research studies must have statistical power of at least 80% in order to be scientifically sound, and peer reviewers often question whether power is high enough. DISCUSSION This requirement and the methods for meeting it have severe flaws. Notably, the true nature of how sample size influences a study's projected scientific or practical va...
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ژورنال
عنوان ژورنال: BMC Medicine
سال: 2010
ISSN: 1741-7015
DOI: 10.1186/1741-7015-8-17