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ERIC Number: EJ1111322
Record Type: Journal
Publication Date: 2005-Dec
Pages: 40
Abstractor: As Provided
ISSN: EISSN-2330-8516
Psychometric and Cognitive Analysis as a Basis for the Design and Revision of Quantitative Item Models. Research Report. ETS RR-05-25
Graf, Edith Aurora; Peterson, Stephen; Steffen, Manfred; Lawless, René
ETS Research Report Series, Dec 2005
We describe the item modeling development and evaluation process as applied to a quantitative assessment with high-stakes outcomes. In addition to expediting the item-creation process, a model-based approach may reduce pretesting costs, if the difficulty and discrimination of model-generated items may be predicted to a predefined level of accuracy. The development and evaluation of item models represents a collaborative effort among content specialists, statisticians, and cognitive scientists. A cycle for developing and revising item models that generate items with more predictable statistics is described. We review the goals of item modeling from different perspectives and recommend a method for structuring families of models that span content and generate items with more predictable psychometric parameters. [This report combines two documents, the original versions of which were included in a set of symposium papers presented at the International Association for Education Assessment conference in June 2004.]
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Graduate Record Examinations
Grant or Contract Numbers: N/A