pwrss: Power and Sample Size Calculation Tools

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 an R-squared against zero in linear regression, (8) testing an R-squared difference against zero in hierarchical regression, (9) testing an eta-squared or f-squared (for main and interaction effects) against zero in analysis of variance (could be one-way, two-way, and three-way), (10) testing an eta-squared or f-squared (for main and interaction effects) against zero in analysis of covariance (could be one-way, two-way, and three-way), (11) testing an eta-squared or f-squared (for between, within, and interaction effects) against zero in one-way repeated measures analysis of variance (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) and (6); but always as "greater" in (7), (8), (9), (10), and (11). Reference: Bulus & Polat (2022) <https://osf.io/download/sx3rk/>.

Version: 0.1.0
Suggests: knitr, rmarkdown
Published: 2022-11-09
Author: Metin Bulus [aut, cre]
Maintainer: Metin Bulus <bulusmetin at gmail.com>
License: GPL (≥ 3)
NeedsCompilation: no
Citation: pwrss citation info
Materials: README
CRAN checks: pwrss results

Documentation:

Reference manual: pwrss.pdf
Vignettes: examples

Downloads:

Package source: pwrss_0.1.0.tar.gz
Windows binaries: r-devel: pwrss_0.1.0.zip, r-release: pwrss_0.1.0.zip, r-oldrel: pwrss_0.1.0.zip
macOS binaries: r-release (arm64): pwrss_0.1.0.tgz, r-oldrel (arm64): pwrss_0.1.0.tgz, r-release (x86_64): pwrss_0.1.0.tgz, r-oldrel (x86_64): pwrss_0.1.0.tgz

Linking:

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