Articles producció científicaPsicologia

An IRT Modeling Approach for Assessing Item and Person Discrimination in Binary Personality Responses

  • Identification data

    Identifier:  PC:1473
    Authors:  Pere J. Ferrando
    Abstract:
    Conventional item response theory (IRT) modeling of personality responses considers two item characteristics, location and discrimination, but only one person characteristic, location or trait level. An IRT modeling approach that jointly considers item and person discriminations, however, is thought to be more realistic and appropriate in this domain and has several potential advantages. This article develops a model of this type for unidimensional binary responses together with procedures for estimating item and person parameters and assessing model appropriateness (including person fit). A series of preliminary simulations suggests that the approach is feasible, and a real-data example illustrates the potential advantages with respect to the standard two-parameter model. Limitations of the proposal and further work are also discussed.
  • Others:

    Link to the original source: https://journals.sagepub.com/doi/10.1177/0146621615622633
    Article's DOI: 10.1177/0146621615622633
    Journal publication year: 2015
    Entity: Universitat Rovira i Virgili
    Paper version: info:eu-repo/semantics/publishedVersion
    Record's date: 2016-05-03
    First page: 218
    URV's Author/s: FERRANDO PIERA, PERE JOAN
    Department: Psicologia
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Publication Type: Article
    Last page: 232
    ISSN: 0146-6216
    Author, as appears in the article.: Pere J. Ferrando
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Journal volume: 40
    Research group: Escalament de Variables Psicològiques i Desenvolupament de Qüestionaris
    Thematic Areas: Psychology
  • Keywords:

    personality
    Person discrimination
    Item response theory
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