Package: WrightMap
Type: Package
Title: IRT Item-Person Map with 'ConQuest' Integration
Version: 1.4
Date: 2024-09-24
Authors@R: c(person(given = c("David"),
                      family = "Torres Irribarra",
                      role = c("aut", "cre"),
                      email = "david@torresirribarra.me"),
                      person(given = "Rebecca",
                      family = "Freund",
                      role = "aut"))
Maintainer: David Torres Irribarra <david@torresirribarra.me>
Description: A powerful yet simple graphical tool available in the
        field of psychometrics is the Wright Map (also known as item
        maps or item-person maps), which presents the location of both
        respondents and items on the same scale. Wright Maps are
        commonly used to present the results of dichotomous or
        polytomous item response models. The 'WrightMap' package
        provides functions to create these plots from item parameters
        and person estimates stored as R objects. Although the package
        can be used in conjunction with any software used to estimate
        the IRT model (e.g. 'TAM', 'mirt', 'eRm' or 'IRToys' in 'R', or
        'Stata', 'Mplus', etc.), 'WrightMap' features special
        integration with 'ConQuest' to facilitate reading and plotting
        its output directly.The 'wrightMap' function creates Wright
        Maps based on person estimates and item parameters produced by
        an item response analysis. The 'CQmodel' function reads output
        files created using 'ConQuest' software and creates a set of
        data frames for easy data manipulation, bundled in a 'CQmodel'
        object. The 'wrightMap' function can take a 'CQmodel' object as
        input or it can be used to create Wright Maps directly from
        data frames of person and item parameters.
License: BSD_2_clause + file LICENSE
Depends: R (>= 3.0.0)
Imports: methods, RColorBrewer
Encoding: UTF-8
Repository: https://david-ti.r-universe.dev
Date/Publication: 2024-10-03 18:31:25 UTC
RemoteUrl: https://github.com/david-ti/wrightmap
RemoteRef: HEAD
RemoteSha: 194e7cc6d7557f99e8d4af5b5acb10010cee4717
NeedsCompilation: no
Packaged: 2026-07-03 19:46:35 UTC; root
Author: David Torres Irribarra [aut, cre],
  Rebecca Freund [aut]