Accession Number : ADA139396

Title :   A Response Model for Multiple Choice Items.

Descriptive Note : Psychometric technical rept.,

Corporate Author : NATIONAL OPINION RESEARCH CENTER CHICAGO IL

Personal Author(s) : Thissen,D ; Steinberg,L

PDF Url : ADA139396

Report Date : Dec 1983

Pagination or Media Count : 51

Abstract : An extension of the Bock-Samejima model for multiple choice items is introduced. The model provides for varying probabilities of the response alternative when the examinee guesses. A marginal maximum likelihood method is devised for estimating the item parameters, and likelihood ratio tests for comparing more and less constrained forms of the model are provided. Applications of the model are illustrated with item response data for the work knowledge and general science subtests of the Armed Services Vocational Aptitude Battery. (Author)

Descriptors :   *Mathematical models, *Aptitude tests, *Response, Probability, Maximum likelihood estimation, Parameters, Multivariate analysis, Transformations(Mathematics)

Subject Categories : Psychology
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE