facet: an R package for Generalizability Theory

Released facet, an R package for Generalizability Theory analyses (G-studies, D-studies, and reliability sweeps) with frequentist (lme4, aov) and Bayesian (brms) estimators. It is the result of a long-running collaboration with Duncan Jackson at King’s College London, and grew out of our frustration at how awkward G-theory was to teach and to run in practice. The package is open source and on GitHub; please raise issues or PRs there.