On the derivation of Camp's tetrachoric correlation approximation

Gordon Rae

    Research output: Contribution to journalArticle

    Abstract

    Although Camp's tetrachoric correlation approximation has been shown to yield excellent results over a fairly wide range, its derivation remains something of a mystery. The present article shows how Camp might have arrived at his formula using a theoretical, rather than an empirical, approach.
    Original languageEnglish
    Pages (from-to)631-636
    JournalEducational and Psychological Measurement
    Volume57
    Issue number4
    Publication statusPublished - Aug 1997

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