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ERIC Number: EJ1019135
Record Type: Journal
Publication Date: 2013-Oct
Pages: 19
Abstractor: As Provided
ISSN: ISSN-0146-6216
A Polytomous Extension of the Generalized Distance Discriminating Method
Sun, Jianan; Xin, Tao; Zhang, Shumei; de la Torre, Jimmy
Applied Psychological Measurement, v37 n7 p503-521 Oct 2013
This article proposes a generalized distance discriminating method for test with polytomous response (GDD-P). The new method is the polytomous extension of an item response theory (IRT)-based cognitive diagnostic method, which can identify examinees' ideal response patterns (IRPs) based on a generalized distance index. The similarities between observed response patterns and IRPs for polytomous response situation are measured by the index of GDD-P, and the attribute patterns can be recognized via the relationship between attribute patterns and IRPs. Feasible designs about polytomous Q-matrix and scoring items for polytomous response are also discussed. In simulation, the classification accuracy of the GDD-P method for the test with polytomous response was investigated, and results indicated that the proposed method had promising performance in recognizing examinees' attribute patterns.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: China; Hong Kong; Macau; Taiwan (Taipei)
Identifiers - Assessments and Surveys: Program for International Student Assessment
Grant or Contract Numbers: N/A