The size of a pilot study for a clinical trial should be calculated in relation to considerations of precision and efficiency
Author:
Publisher
Elsevier BV
Subject
Epidemiology
Reference18 articles.
1. Sample size calculations for randomized controlled trials;Wittes;Epidemiol Rev,2002
2. Underpowering in randomized trials reporting a sample size calculation;Vickers;J Clin Epidemiol,2003
3. Design and analysis of pilot studies: recommendations for good practice;Lancaster;J Eval Clin Pract,2004
4. Sample size of 12 per group rule of thumb for a pilot study;Julious;Pharm Stat,2005
5. Internal pilot studies for estimating sample size;Birkett;Stat Med,1994
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