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PASS Sample Size Software

PASS is a computer program for estimating sample size or determining the power of a statistical test or confidence interval. NCSS LLC is the company that produces PASS. NCSS LLC also produces NCSS (for statistical analysis).

PASS includes over 920 documented sample size and power procedures.

01Major statistical topics in PASS

  • Means - 1 or 2 Groups
  • Means - Correlated or Paired
  • Means - Cross-Over Designs
  • Means - Many (ANOVA)
  • Survival Analysis
  • Variances
  • ROC Curves
  • Equivalence
  • Normality Tests
  • Confidence Intervals
  • Conditional Power
  • Proportions - 1 or 2 Groups
  • Proportions - Correlated or Paired
  • Proportion - Many Groups
  • Mixed Models
  • Regression/Correlation
  • Non-Inferiority
  • Group Sequential Tests
  • Design of Experiments
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Sources and credits

This article is adapted from the Wikipedia article PASS Sample Size Software, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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