Literaturnachweis - Detailanzeige
| Autor/inn/en | Lee, Guemin; Fitzpatrick, Anne R. |
|---|---|
| Titel | A New Approach to Test Score Equating Using Item Response Theory with Fixed C-Parameters |
| Quelle | In: Asia Pacific Education Review, 9 (2008) 3, S.248-261 (14 Seiten)Infoseite zur Zeitschrift
PDF als Volltext (1); PDF als Volltext kostenfreie Datei (2) |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 1598-1037 |
| Schlagwörter | Equated Scores; Item Response Theory; Models; Equations (Mathematics); Grade 4; Grade 7; Grade 11; Reading Tests; Mathematics Tests; TerraNova Multiple Assessments |
| Abstract | Because parameter estimates from different calibration runs under the IRT model are linearly related, a linear equation can convert IRT parameter estimates onto another scale metric without changing the probability of a correct response (Kolen & Brennan, 1995, 2004). This study was designed to explore a new approach to finding a linear equation by fixing C-parameters for anchor items in IRT equating. A rationale for fixing C-parameters for anchor items in IRT equating can be established from the fact that the C-parameters are not affected by any linear transformation. This new approach can avoid the difficulty in getting accurate C-parameters for anchor items embedded in the application of the IRT model. Based upon our findings in this study, we would recommend using the new approach to fix C-parameters for anchor items in IRT equating. (Contains 6 tables and 3 figures.) (As Provided). |
| Anmerkungen | Education Research Institute, Seoul National University. Department of Education, 599 Kwanak-Ro, Kwanak-Gu, Seoul 151-748, South Korea. Tel: +82-2-880-5896; Fax: +82-2-889-6508; e-mail: aper2@hanmail.net; Web site: http://eri.snu.ac.kr/aper |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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