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ERIC Number: EJ669047
Record Type: Journal
Publication Date: 2002
Pages: N/A
Abstractor: N/A
Reference Count: N/A
ISSN: ISSN-0033-3123
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)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A