Item Response TheoryBased Approaches for Computing Minimum Passing Scores From an Angoff-Based Standard-Setting Study  

Oleh:

Ferdous, Abdullah A. ; Plake, Barbara S.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 68 no. 05 (Oct. 2008), page 778-796.
Topik: standard setting; minimum passing score; Angoff method; IRT-based approach
Fulltext: 778.pdf (155.97KB)

Isi artikel

Even when the scoring of an examination is based on item response theory (IRT), standard-setting methods seldom use this information directly when determining the minimum passing score (MPS) for an examination from an Angoff-based standardsetting study. Often, when IRT scoring is used, the MPS value for a test is converted to an IRT-based theta ability estimate by using the test characteristic curve. The purpose of this study is to investigate some approaches to determining the MPS from an Angoff-based standard-setting study when the test questions have been calibrated using IRT methods. Although the methods studied appear to converge on the same cut score, the cut scores derived from the IRT-based approaches are all within one standard error of the Angoff-based MPS value.

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