Sample size justification

• 2013/12/18 PMean: Sample size for comparing two diagnostic tests
• 2008/01/09 Too much power and precision?
• 2007/08/09 Justifying the sample size for a microarray study
• 2007/04/09 What is an adequate sample size for establishing validity and reliability?
• 2007/03/26 IRB review of a pilot study
• 2007/01/30 Do your own power and sample size calculations
• 2007/01/03 Variable cluster sizes and their impact on sample size calculations
• 2006/12/29 Be sure to account for dropouts in your sample size calculation
• 2006/11/02 Additions and improvements to my web pages
• 2006/10/23 Is a 10% shortfall in sample size critical?
• 2006/07/28 R libraries for sample size justification
• 2006/03/30 How many charts should I pull?
• 2005/10/03 Sample size for a binomial confidence interval
• 2005/08/12 Sample size for a binary endpoint
• 2005/07/11 Confidence interval for a correlation coefficient
• 2005/03/08 Sample size calculation for a nonparametric test
• 2004/11/30 Sample size for cluster randomized trials
• 2004/11/24 Unequal sample sizes
• 2004/11/05 Confidence intervals for complex research designs
• 2004/09/22 Sample size for an ordinal outcome
• 2004/07/23 Sample size calculations in studies with a baseline
• 2004/07/05 Sample size for a diagnostic test
• 2004/05/20 Sample size calculation example
• 2004/05/13 Sample size for a survival data model
• 2003/05/09 Cluster randomization
• 2001/01/19 The minimal impact of population size on power and precision
• 2000/09/28 Sample size for the Mann-Whitney U test
• 2000/08/23 Binary outcome sample size calculations
• 2000/01/26 Sample size for a confidence interval
• 1999/09/03 Sample size for a diagnostic study