Literaturnachweis - Detailanzeige
Autor/in | Pashley, Peter J. |
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Institution | Educational Testing Service, Princeton, NJ. |
Titel | An Alternative Three-Parameter Logistic Item Response Model. |
Quelle | (1991), (39 Seiten)
PDF als Volltext |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Monographie |
Schlagwörter | Equations (Mathematics); Guessing (Tests); Item Response Theory; Maximum Likelihood Statistics; Models |
Abstract | Birnbaum's three-parameter logistic function has become a common basis for item response theory modeling, especially within situations where significant guessing behavior is evident. This model is formed through a linear transformation of the two-parameter logistic function in order to facilitate a lower asymptote. This paper discusses an alternative three-parameter logistic model in which the asymptote parameter is a linear component within the logit of the function. This alternative is derived from a more general four-parameter model based on a transformed hyperbola. (Contains 7 figures, 1 appendix of likelihood equations and information functions, and 13 references.) (Author) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |