Detection of aberrant item score patterns: A review of recent developments

R.R. Meijer, K. Sijtsma

    Research output: Contribution to journalArticleAcademicpeer-review

    71 Citations (Scopus)


    Methods for detecting item score patterns that are unlikely, given that a parametric item response theory (IRT) model gives an adequate description of the data or given the responses of the other persons in the group are discussed. The emphasis here is on the latter group of statistics. These statistics can be applied when a nonparametric model is used to fit the data or when the data are described in the absence of an IRT model. After the discussion of the literature on person-fit methods, the use of person-fit statistics in empirical data analysis is briefly discussed.
    Original languageEnglish
    Pages (from-to)261-272
    JournalApplied measurement in education
    Issue number3
    Publication statusPublished - 1995


    • METIS-135314

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