Literaturnachweis - Detailanzeige
| Autor/in | Samejima, Fumiko |
|---|---|
| Titel | Ability Estimates That Order Individuals with Consistent Philosophies. |
| Quelle | (1997), (37 Seiten)
PDF als Volltext kostenfreie Datei |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Monographie |
| Schlagwörter | Ability; Estimation (Mathematics); Item Response Theory; Philosophy; Scores; Test Interpretation; Test Items; Validity |
| Abstract | Latent trait models introduced the concept of the latent trait, or ability, as distinct from the test score. There is a recent tendency to treat the test score as through it were a substitute for ability, largely because the test score is a convenient way to place individuals in order. F. Samejima (1969) has shown that, in general, the amount of test information decreases if the test score is the estimate of ability. This paper introduces a new family of models that has a high level of substantive validity and inner consistency in ordering individuals. This family is called the logistic positive exponent family (LPEF). The development of these models is traced, and how to define the item characteristic curve in the LPEF family is demonstrated. One of the most important characteristics of the LPEF family is that a point-symmetric (logistic) model is treated as one of the infinitely many models of the family. LPEF provides more appropriate models for human behavior those based on error distributions. (Contains 2 tables, 5 figures, and 12 references.) (SLD) |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
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