Package: ShortForm Type: Package Title: Automatic Short Form Creation Version: 0.5.8 Date: 2026-05-06 Authors@R: c(person("Anthony", "Raborn", email = "anthony.w.raborn@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-8083-4739")), person("Walter", "Leite", email = "Walter.Leite@coe.ufl.edu", role = "aut")) Description: Performs automatic creation of short forms of scales with an ant colony optimization algorithm and a Tabu search. As implemented in the package, the ant colony algorithm randomly selects items to build a model of a specified length, then updates the probability of item selection according to the fit of the best model within each set of searches. The algorithm continues until the same items are selected by multiple ants a given number of times in a row. On the other hand, the Tabu search changes one parameter at a time to be either free, constrained, or fixed while keeping track of the changes made and putting changes that result in worse fit in a "tabu" list so that the algorithm does not revisit them for some number of searches. See Leite, Huang, & Marcoulides (2008) for an applied example of the ant colony algorithm, and Marcoulides & Falk (2018) for an applied example of the Tabu search. License: LGPL (>= 2.0, < 3) | Mozilla Public License LazyData: TRUE Suggests: knitr, MplusAutomation (>= 0.7), rmarkdown, testthat Imports: lavaan (>= 0.5-22), stringr, methods, doSNOW, parallel, foreach, rlang Depends: R (>= 4.1.0) URL: https://github.com/AnthonyRaborn/ShortForm BugReports: https://github.com/AnthonyRaborn/ShortForm/issues Encoding: UTF-8 Config/roxygen2/version: 8.0.0 Config/pak/sysreqs: libicu-dev Repository: https://anthonyraborn.r-universe.dev Date/Publication: 2026-05-06 05:08:52 UTC RemoteUrl: https://github.com/anthonyraborn/shortform RemoteRef: HEAD RemoteSha: ee9bcf078b0aa03d9a3c8951f67a9f5e98d7370a NeedsCompilation: no Packaged: 2026-07-05 08:37:36 UTC; root Author: Anthony Raborn [aut, cre] (ORCID: ), Walter Leite [aut] Maintainer: Anthony Raborn