General features
 
  • Easy to use
  • Calculations for most standard tests as well as for parameters in common statistical distributions
  • Comprises hypothesis testing, point estimation, and confidence interval
  • Any parameter can be calculated (not only sample size and power)
  • Simultaneous power comparisons in multiple windows
  • Includes equivalence- and non-inferiority testing for most tests
  • Monte Carlo simulation when large sample formulas are inappropriate
  • Group sequential interim analyses by Monte Carlo simulations for most tests and confidence intervals
  • Non-parametric tests (Wilcoxon-Mann-Whitney test, Wilcoxon signed-rank test, and Sign test)
  • Results presented as single values or in tables and graphs grouped by two other parameters
Tests included in version 1.0. New in version 2.0
One-sided (superiority, non-inferiority), two-sided (difference), and two one-sided (equivalence)


  • Student's t-test
    • Unpaired
    • Paired
  • ANOVA
    • One-way
    • Two-way
    • Three-way
    • Single Latin Square
    • Replicated Latin Squares
    • Replicated Latin Squares (block factor)
    • Randomised Blocks, one factor
    • Randomised Blocks, two factors
  • ANOVA Repeated Measures
    • One within factor
    • One within, one between factor
  • MANOVA Hotelling's T2
    • One groups
    • Two groups
  • MANOVA Repeated Measures
    • One within factor
    • One within, one between factor
  • Fisher's exact test
  • McNemar's test
  • Chi-square test
    • 2 x 2 table
    • R x C table
  • Mantel-Haenszel test
  • Cochran-Armitage Trend test
  • Life Table test (Mantel-Haeinszel)
    • Exponential distribution
    • Weibull distribution
    • Gamma distribution
    • Lognormal distribution
    • Piecewise exponential distribution
  • Log Rank test
    • Exponential distribution
    • Weibull distribution
    • Gamma distribution
    • Lognormal distribution
    • Piecewise exponential distribution
  • Log-rank test (No of Events)
  • Exponential Survival (Maximum Likelihood)
  • Cox regression
    • Continuous covariate
    • Binary covariate
  • Wilcoxon-Mann-Whitney test
    • Continuous outcome
    • Ordered categories

     

  • Nonparametric Location test
    • Normal Scores test
    • Kruskal-Wallis test
  • Nonparametric Scale test
    • Siegel-Tukey test
    • Ansari-Bradley test
    • Klotz test
    • Mood's test
    • Conover test
  • Savage test
  • Wilcoxon signed-rank test
  • Sign test
  • Linear Regression
    • Simple
    • Multiple
  • Logistic Regression
    • Continuous covariate
    • Binary covariate
  • Poisson Regression
    • Continuous covariate
    • Binary covariate
  • Correlation test
    • Pearson's Correlation Coefficient
    • Spearman's Rank Correlation rho
    • Kendall's Rank Correlation tau
  • Reliability test
    • Intraclass correlation
    • Cronbach's Alpha
    • Intraclass Kappa
    • Lin's Concordance Coefficient
  • Two-way Cross-Over Design
    • Additive Model
    • Multiplicative Model
  • General Cross-Over Design
    • Additive Model
    • Multiplicative Model
  • Equivalence Confidence Interval
    • Difference of Means, t-distribution
    • Ratio of means, Lognormal distribution
    • Difference of Proportions, Binomial distribution
    • Comparison of Survival, Exponential distribution
  • Bioequivalence, Two-way Cross-Over Design
    • Test approach
    • Confidence interval approach
  • Non-inferiority, Confidence Interval
    • Difference of Means, t-distribution
    • Ratio of means, Lognormal distribution
    • Difference of Proportions, Binomial distribution
    • Comparison of Survival, Exponential distribution
  

Available statistical distributions
Tests, point estimates, and confidence intervals for

  • Means and standard deviations in one and two normal distributions
  • Medians and shapes in one and two log-normal distributions
  • Locations and scales in one and two exponential distributions
  • Proportions in one and two binomial distributions
  • Proportions in one and two hypergeometric distributions
  • Means and hazard rates in one and two Poisson distributions
  • Population means and proportions in one and two finite populations
  • Difference in means, ratio of standard deviations, correlation coefficient, and regression coefficient in a bivariate normal distribution
 
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