BayesAiken: Bayesian Content Validity Coefficients with Credibility Intervals

Bayesian inference for the six rating coefficients proposed by Aiken (1985) <doi:10.1177/0013164485451012> and Aiken (1989) <doi:10.1177/0013164489492003>: V (content validity), H (homogeneity), C (congruence), R (repeatability), A (rater agreement) and I (item coherence). All six are expressed as functionals of the population distribution of rating categories, so a single Dirichlet-Multinomial model yields their full posterior by push-forward. This treats each judge as one categorical observation and avoids the pseudo-replication of Beta-Binomial formulations. R is modelled on the c-by-c joint table because it is not a functional of the marginal distribution. Provides classical estimates with the correct parity correction, highest density and equal-tailed credibility intervals, posterior threshold probabilities, prior sensitivity analysis and a friendly step-by-step verbose report.

Version:	2.0.0
Depends:	R (≥ 4.0.0)
Imports:	stats, graphics, grDevices, utils
Suggests:	testthat (≥ 3.0.0), shiny, readxl, writexl, openxlsx
Published:	2026-10-28
DOI:	10.32614/CRAN.package.BayesAiken (may not be active yet)
Author:	Jose Ventura-Leon [aut, cre]
Maintainer:	Jose Ventura-Leon <jventuraleon at gmail.com>
BugReports:	https://github.com/jventural/BayesAiken/issues
License:	MIT + file LICENSE
URL:	https://github.com/jventural/BayesAiken
NeedsCompilation:	no
Materials:	NEWS
CRAN checks:	BayesAiken results

Documentation:

Reference manual:

BayesAiken.html , BayesAiken.pdf

Downloads:

Package source:	BayesAiken_2.0.0.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available

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