Package: exactGMH
Type: Package
Title: Exact and Permutation-Based Mantel Tests for Differential Item
        Functioning in Dichotomous and Polytomous Items
Version: 0.1.0
Authors@R: c(
    person("Tri Zahra", "Ningsih", email = "trizahra10019@gmail.com", role = c("aut", "cre")),
    person("Aman", role = "aut"),
    person("Ahmad", "Nasrulloh", role = "aut"),
    person("Hera", "Hastuti", email = "herahastuti@fis.unp.ac.id", role = "aut"),
    person("Suci Kurnia", "Putri", role = "aut"))
Description: Screens dichotomous and polytomous test items for
    Differential Item Functioning (DIF) using an extension of the
    Mantel (1963) <doi:10.1080/01621459.1963.10500879> and generalized
    Mantel-Haenszel statistic, with statistical significance computed
    via permutation rather than the conventional asymptotic
    chi-square approximation. Following Hemerik and Goeman (2018)
    <doi:10.1007/s11749-017-0571-1>, the permutation p-value is exact
    at the nominal level rather than an approximation, even for a
    finite number of permutations. This makes the test valid for
    small samples (fewer than 200 examinees per group), a condition
    common in classroom-, program-, and institution-level assessment
    where existing exact-inference options in other software are
    restricted to dichotomous items only. An optional
    Benjamini-Hochberg or Bonferroni correction addresses multiple
    comparisons when screening many items at once.
License: MIT + file LICENSE
Encoding: UTF-8
RoxygenNote: 7.3.1
Depends: R (>= 4.0)
Imports: stats
Suggests: testthat (>= 3.0.0), shiny
Config/testthat/edition: 3
URL: https://github.com/exactGMH-project/exactGMH
BugReports: https://github.com/exactGMH-project/exactGMH/issues
NeedsCompilation: no
Packaged: 2026-08-04 16:17:04 UTC; root
Author: Tri Zahra Ningsih [aut, cre],
  Aman [aut],
  Ahmad Nasrulloh [aut],
  Hera Hastuti [aut],
  Suci Kurnia Putri [aut]
Maintainer: Tri Zahra Ningsih <trizahra10019@gmail.com>
Repository: CRAN
Date/Publication: 2026-08-09 08:10:06 UTC
Built: R 4.6.1; ; 2026-08-09 08:18:19 UTC; unix
