On artificial results due to using factor analysis for dichotomous variables

    Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

    Abstract

    This paper serves to remind the reader, that factor analysis in the case of dichotomous variables will often lead to artificial factors. In other words, the factors correspond primarily to certain levels of item difficulty. A numerical example will be given in order to illustrate this. It is argued that, for instance, factoring tetrachoric correlations instead of conventionally used Pearson correlations would lead to more content valid results.
    OriginalspracheEnglisch
    Seiten (von - bis)106-110
    Seitenumfang5
    FachzeitschriftPsychology Science
    Jahrgang45
    Ausgabenummer1
    PublikationsstatusVeröffentlicht - 2003

    ÖFOS 2012

    • 501018 Psychologische Diagnostik

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