Application of Direct Optimization for Item Calibration in Computerized Adaptive Testing [microform] / Iosif A. Krass
- Bib ID:
- 5620689
- Format:
- Book and Microform
- Author:
- Krass, Iosif A
- Online Version:
- https://eric.ed.gov/?id=ED423240
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- Description:
-
- [Washington D.C.] : Distributed by ERIC Clearinghouse, 1998
- 35 p.
- Summary:
-
In the process of item calibration for a computerized adaptive test (CAT), many well-established calibrating packages show weakness in the estimation of item parameters. This paper introduces an on-line calibration algorithm based on the convexity of likelihood functions. This package consists of: (1) an algorithm that estimates examinee ability and (2) an algorithm that estimates the parameters for a new item that is seeded into the CAT test. The performance of the new package is comparable to BilogMG, and in some cases exceeds it. The new algorithm belongs to the class of Direct Maximization Aposteriori algorithms. (Contains 9 figures, 2 tables, and 17 references.) (Author/SLD)
- Notes:
- May also be available online. Address as at 14/8/18: https://eric.ed.gov/
- Reproduction:
- Microfiche. [Washington D.C.]: ERIC Clearinghouse microfiches : positive.
- Subject:
- Available From:
- ERIC
- Copyright:
-
In Copyright
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Copyright status was determined using the following information:
- Material type:
- Literary Dramatic Musical
- Published status:
- Published
- Publication date:
- 1998
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