To install and load pwrss:
install.packages("pwrss")
library(pwrss)
pwrss R package allows statistical power and minimum
required sample size calculations for
(1) testing a proportion (one-sample) against a
constant,(2) testing a mean (one-sample) against a
constant,(3) testing difference between two proportions
(independent samples),(4) testing difference between two means (independent
and paired samples),(5) testing a correlation (one-sample) against a
constant,(6) testing difference between two correlations
(independent samples),(7) testing a coefficient (standardized or
unstandardized) against a constant in multiple linear regression,(8) testing an indirect effect (standardized or
unstandardized) in the mediation analysis (Sobel, Joint, and Monte
Carlo),(9) testing an R-squared against zero in linear
regression(10) testing an R-squared difference against zero in
hierarchical regression(11) testing an eta-squared or f-squared (for main and
interaction effects) against zero in analysis of variance (ANOVA) (could
be one-way, two-way, and three-way),(12) testing an eta-squared or f-squared (for main and
interaction effects) against zero in analysis of covariance (ANCOVA)
(could be one-way, two-way, and three-way),(13) testing an eta-squared or f-squared (for between,
within, and interaction effects) against zero in one-way repeated
measures analysis of variance (RM-ANOVA) (with non-sphericity correction
and repeated measures correlation).Alternative hypothesis can be formulated as “not equal”, “less”,
“greater”, “non-inferior”, “superior”, or “equivalent” in
(1), (2), (3), and
(4); as “not equal”, “less”, or “greater” in
(5), (6), (7) and
(8); but always as “greater” in (9),
(10), (11), (12), and
(13).
If you find the package and related material useful, along with other references, please cite as:
Bulus, M. (2022). pwrss: Power and Sample Size Calculation Tools. R package version 0.2.0. https://CRAN.R-project.org/package=pwrss
Bulus, M., & Polat, C. (2022, December 12). pwrss R Paketi ile Istatistiksel Guc Analizine Giris [Introduction to Statistical Power Analysis with pwrss R Package]. https://doi.org/10.35542/osf.io/tfyxq