https://seockhokim.r-universe.devRecent package updates in seockhokimR-universehttps://github.com/seockhokim.pnghttps://seockhokim.r-universe.devWed, 04 Oct 2017 09:42:46 GMTshkim@uga.edu (Seock-Ho Kim)R functions for "The Basics of Item Response Theory Using R" by Frank B. Baker and Seock-Ho Kim (Springer, 2017, ISBN-13: 978-3-319-54204-1) including iccplot(), icccal(), icc(), iccfit(), groupinv(), tcc(), ability(), tif(), and rasch(). For example, iccplot() plots an item characteristic curve under the two-parameter logistic model.https://github.com/r-universe/seockhokim/actions/runs/27004116395Wed, 04 Oct 2017 09:42:46 GMTbirtr1.0.0successhttps://seockhokim.r-universe.devhttps://github.com/cran/birtr