Peer reviewedERIC Number: EJ669047
Record Type: Journal
Publication Date: 2002
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: ISSN-0033-3123
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Available Date: N/A
Hypergeometric Family and Item Overlap Rates in Computerized Adaptive Testing.
Chang, Hua-Hua; Zhang, Jinming
Psychometrika, v67 n3 p387-98 Sep 2002
Demonstrates mathematically that if every item in an item pool has an equal possibility to be selected from the pool in a fixed-length computerized adaptive test, the number of overlapping items among an alpha randomly sampled examinees follows the hypergeometric distribution family for alpha greater than or equal to 1. (SLD)
Descriptors: Adaptive Testing, Computer Assisted Testing, Item Banks, Selection, Test Construction, Test Items
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
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Author Affiliations: N/A
