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ERIC Number: ED561045
Record Type: Non-Journal
Publication Date: 2010
Pages: 12
Abstractor: As Provided
An Investigation of Scale Drift for Arithmetic Assessment of ACCUPLACER®. Research Report No. 2010-2
Deng, Hui; Melican, Gerald
College Board
The current study was designed to extend the current literature to study scale drift in CAT as part of improving quality control and calibration process for ACCUPLACER, a battery of large-scale adaptive placement tests. The study aims to evaluate item parameter drift using empirical data that span four years from the ACCUPLACER Arithmetic assessment. The results suggest that the Arithmetic test maintained a reasonably stable scale in the years 2004 through 2007. The following is appended: Summary Statistics of Item Exposure Rates across Years.
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Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: College Board