Accession Number:

ADA272832

Title:

Extracting Information from Wrong Answers in Computerized Adaptive Testing

Descriptive Note:

Final rept. Oct 1988-Sep 1991

Corporate Author:

NAVY PERSONNEL RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA

Personal Author(s):

Report Date:

1993-10-01

Pagination or Media Count:

32.0

Abstract:

A brief review of the history of polychotomous i.e., multi-category item response models is provided. After describing a new polychotomous item response model Model 8, examples of the Operating Characteristic Functions obtained when Model 8 is applied to real test data are given. In general, inspection of goodness-of-fit plots indicates that Model 8 provides superior data fit and higher item information functions than the well-known 3-parameter logistic dichotomous item response model. A simulation of computerized adaptive testing CAT that used the actual item responses of applicants for military enlistment shows that Model 8 would be superior to the 3-parameter logistic model in a CAT environment. In this investigation, Model 8 increased test reliability by an amount that is equivalent to a 25 increase in test length. Computerized testing, selection, classification, training, testing, item response theory psychometric models, Computerized Adaptive Testing-Armed Services Vocational Apt Battery, CAT-ASVAB, item scoring, polychotomous scoring, polytomous scoring.

Subject Categories:

  • Psychology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE