alphaN 0.2.0
New features
alphaN() gains two methods based on Klauer, Meyer-Grant
& Kellen (2024, Psychonomic Bulletin & Review,
doi:10.3758/s13423-024-02612-2): method = "ES" calibrates
alpha to their effect-size Bayes factor, whose prior centers the
alternative hypothesis on a prespecified effect size, and
method = "moment" calibrates alpha to their moment Bayes
factor, under which effects near zero are a priori implausible. New
arguments de (targeted effect size, default 0.5),
nu, and r control the priors, with defaults
following the paper’s recommendations. Because the moment prior rules
out near-zero effects, the alpha level it implies falls much faster with
n than under JAB.
- As a special case,
method = "ES", nu = 1, de = 0 with
an explicit r calibrates alpha to the default
(Jeffreys-Zellner-Siow type) Bayes factor of Rouder et al. (2009).
- The implementation is validated against all twelve Bayes factors
printed in Table 7 of Klauer et al. (2024); these checks are part of the
test suite.
alphaN 0.1.3
Bug fixes
alphaN() and JABt() now return correct
results when n is a vector and
method = "robust" or method = "balanced".
Previously, "robust" silently applied the smallest sample
size to every element and "balanced" failed with an
unrelated error.
Improvements
- All functions now validate their inputs and fail with informative
error messages: a mistyped
method, a missing
df in JABp(..., z = FALSE), a p
outside (0, 1], a non-positive n or BF, and an
unknown covariate in JAB() (which now lists
the coefficients available in the model).
JAB_plot() gained an upper argument,
passed on to the underlying computations for
method = "balanced".
alphaN_plot() gained a ylim argument. The
default now covers all four curves; previously the y-axis was fixed to
(0, 0.05), which silently clipped the "balanced" curve for
small Bayes factors.
JAB() now determines the sample size via
nobs().
Documentation
?JABp no longer has a placeholder title.
- Corrected the Wagenmakers (2022) reference (year, title) and updated
the Wulff & Taylor reference to the published version (2024,
Strategic Organization, doi:10.1177/14761270231214429) in the
documentation, README, and vignette.
- Added a CITATION file for the companion paper.
- Fixed typos in the vignette and documented that
JABp()
expects a two-sided p-value.
alphaN 0.1.2
alphaN 0.1.1
- Removed vignette example that depended on unstable dataset.
alphaN 0.1.0
- Added a
NEWS.md file to track changes to the
package.
- First CRAN submission.