This page contains links to JavaScript based forms for simple power/sample size calculations. An extensive list of alternative and more comprehensive resources is available at UCSF Biostatistics: Power and Sample Size Programs.

  • Comparing a Mean to a Known Value
  • Comparing Means for Two Independent Samples
  • Comparing a Proportion to a Known Value
  • Comparing Proportions for Two Independent Samples
  • Unmatched Case Control Studies