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ERIC Number: EJ785427
Record Type: Journal
Publication Date: 2003
Pages: 13
Abstractor: Author
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0002-4805
The Effects of Examinee Motivation on Multiple-Choice Item Parameter Estimates
van Barneveld, Christina
Alberta Journal of Educational Research, 49 n3 p277-289 Fall 2003
The purpose of this study was to examine the potential effect of false assumptions regarding the motivation of examinees on item calibration and test construction. A simulation study was conducted using data generated by means of several models of examinee item response behaviors (the three-parameter logistic model alone and in combination with Wise's Examinee Persistence model). Items were calibrated using a marginal maximum likelihood estimation method with an expectation/maximization algorithm with Bayesian prior distributions for item parameter estimates. Results clearly document the possible effect on item calibration of examinees who display low motivation response behaviors. For the conditions studied, item parameter estimates based on responses of examinees in low motivation conditions were more biased and more variable than items calibrated using responses from a calibration group who behaved according to the three-parameter logistic model.
University of Alberta, Faculty of Education. 845 Education Centre South, Faculty of Education, University of Alberta, Edmonton, AB T6G 2G5, Canada. Tel: 780-492-7941; Fax: 780-492-0236; Web site: http://www.education.ualberta.ca/educ/journals/ajer.html
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A