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ERIC Number: EJ1391127
Record Type: Journal
Publication Date: 2023
Pages: 23
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0022-0655
EISSN: EISSN-1745-3984
Available Date: N/A
Pretest Item Calibration in Computerized Multistage Adaptive Testing
Journal of Educational Measurement, v60 n3 p379-401 Fall 2023
The purpose of this study was to compare calibration and linking methods for placing pretest item parameter estimates on the item pool scale in a 1-3 computerized multistage adaptive testing design in terms of item parameter recovery. Two models were used: embedded-section, in which pretest items were administered within a separate module, and embedded-items, in which pretest items were distributed across operational modules. The calibration methods were separate calibration with linking (SC) and fixed calibration (FC) with three parallel approaches under each (FC-1 and SC-1; FC-2 and SC-2; and FC-3 and SC-3). The FC-1 and SC-1 used only operational items in the routing module to link pretest items. The FC-2 and SC-2 also used only operational items in the routing module for linking, but in addition, the operational items in second stage modules were freely estimated. The FC-3 and SC-3 used operational items in all modules to link pretest items. The third calibration approach (i.e., FC-3 and SC-3) yielded the best results. For all three approaches, SC outperformed FC in all study conditions which were module length, sample size and examinee distributions.
Wiley. Available from: John Wiley & Sons, Inc. 111 River Street, Hoboken, NJ 07030. Tel: 800-835-6770; e-mail: cs-journals@wiley.com; Web site: https://www-wiley-com.bibliotheek.ehb.be/en-us
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A