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ERIC Number: EJ850928
Record Type: Journal
Publication Date: 2009
Pages: 22
Abstractor: As Provided
Reference Count: 26
ISBN: N/A
ISSN: ISSN-0146-6216
Comparison of CAT Item Selection Criteria for Polytomous Items
Choi, Seung W.; Swartz, Richard J.
Applied Psychological Measurement, v33 n6 p419-440 2009
Item selection is a core component in computerized adaptive testing (CAT). Several studies have evaluated new and classical selection methods; however, the few that have applied such methods to the use of polytomous items have reported conflicting results. To clarify these discrepancies and further investigate selection method properties, six different selection methods are compared systematically. The results showed no clear benefit from more sophisticated selection criteria and showed one method previously believed to be superior--the maximum expected posterior weighted information (MEPWI)--to be mathematically equivalent to a simpler method, the maximum posterior weighted information (MPWI). (Contains 6 figures and 3 tables.)
SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A