Power and Sample Size Calculation Tools


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Documentation for package ‘pwrss’ version 0.2.0

Help Pages

plot.pwrss Type I and Type II Error Plots for t, z, and F Tests
power.f.test Statistical Power for the Generic F Test with Type I and Type II Error Plots
power.t.test Statistical Power for the Generic t Test with Type I and Type II Error Plots
power.z.test Statistical Power for the Generic z Test with Type I and Type II Error Plots
pwrss.f.ancova Analysis of Variance (ANOVA) or Analysis of Covariance (ANCOVA) (F test)
pwrss.f.anova Analysis of Variance (ANOVA) or Analysis of Covariance (ANCOVA) (F test)
pwrss.f.reg R-squared Deviation from 0 (zero) or R-squared Difference in Hierarchical Multiple Linear Regression (F Test)
pwrss.f.rmanova Repeated Measures Analysis of Variance (RM-ANOVA) (F test)
pwrss.t.2means Difference between Two Means (Independent Samples t Test)
pwrss.t.reg Test of a Single Coefficient in Multiple Linear Regression (t Test or z Test)
pwrss.z.2corrs Difference between Two Correlations (Independent Samples z Test)
pwrss.z.2means Difference between Two Means (Independent Samples z Test)
pwrss.z.2props Difference between Two Proportions (Independent Samples z Test)
pwrss.z.corr A Correlation against 0 (zero) (One Sample z Test)
pwrss.z.mean A Mean against a Constant (One Sample z Test)
pwrss.z.med Test of an Indirect Effect in the Mediation Analysis (z Test, Joint Test, and Monte Carlo)
pwrss.z.prop A Proportion against a Constant (One Sample z Test)
pwrss.z.reg Test of a Single Coefficient in Multiple Linear Regression (t Test or z Test)