Literaturnachweis - Detailanzeige
| Autor/inn/en | Seong, Tae-Je; und weitere |
|---|---|
| Titel | A Comparison of Procedures for Ability Estimation under the Graded Response Model. |
| Quelle | (1997), (44 Seiten)
PDF als Volltext kostenfreie Datei |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Monographie |
| Schlagwörter | Ability; Comparative Analysis; Difficulty Level; Estimation (Mathematics); Foreign Countries; Maximum Likelihood Statistics; Sample Size; Statistical Distributions; Test Length |
| Abstract | This study was designed to compare the accuracy of three commonly used ability estimation procedures under the graded response model. The three methods, maximum likelihood (ML), expected a posteriori (EAP), and maximum a posteriori (MAP), were compared using a recovery study design for two sample sizes, two underlying ability distributions, and three test lengths. Recovery of ability was generally better for longer tests and for the conditions in which ability was matched to test difficulty. ML tended to recover less well than either EAP or MAP, particularly for the short test in the unmatched ability condition. For longer tests, all three methods recovered about equally well. (Contains 8 figures, 8 tables, and 26 references.) (Author) |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
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