NotesFAQContact Us
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ779499
Record Type: Journal
Publication Date: 2002
Pages: 19
Abstractor: Author
Reference Count: 0
ISSN: ISSN-0146-6216
Evaluation of Selection Procedures for Computerized Adaptive Testing with Polytomous Items
Van Rijn, P. W.; Eggen, T. J. H. M.; Hemker, B. T.; Sanders, P. F.
Applied Psychological Measurement, v26 n4 p393-411 2002
In the present study, a procedure that has been used to select dichotomous items in computerized adaptive testing was applied to polytomous items. This procedure was designed to select the item with maximum weighted information. In a simulation study, the item information function was integrated over a fixed interval of ability values and the item with the maximum area was selected. This maximum interval information item selection procedure was compared to a maximum point information item selection procedure. Substantial differences between the two item selection procedures were not found when computerized adaptive tests were evaluated on bias and the root mean square of the ability estimate.
SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A