Accession Number : ADM000331

Title :   Reducing Test Length with Polychotomous Scoring (Computer Diskette).

Corporate Author : NAVY PERSONNEL RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA

Report Date : OCT 1993

Pagination or Media Count : 1

Abstract : File characteristics: Textfile; 1 file; binary character set. Physical description: 1 computer diskette; 3 1/2 in.; high density; 1.4. MB. System requirements: Postscript. This study compared two new types of test scoring (polyweighting and dichotomous Item Response Theory (IRT) scoring) to traditional number-correct (NC) scoring. The study used data collected from applicants for military enlistment who had taken the Armed Services Vocational Aptitude Battery (ASVAB). The objective was to determine the impact of these two new scoring methods on alternate-form reliabilities. Content areas were ASVAB Mathematics Knowledge (MK) and General Science (GS). The authors reached five conclusions: (1) Polyweighting is superior to NC scoring; (2) dichotomous IRT scoring is usually superior to NC scoring, but not always; (3) when dichotomous IRT scoring works well, polyweighting and dichotomous IRT scoring show similar reductions in test length; (4) polyweighting and IRT scoring both provide greater benefits when item difficulties are more variable; and (5) Polyweighting and IRT.

Descriptors :   *MAGNETIC DISKS, *SCORING, *APTITUDE TESTS, MATHEMATICS, ENLISTED PERSONNEL, WEIGHTING FUNCTIONS, DATA ACQUISITION, CLASSIFICATION, NAVAL TRAINING, PERSONNEL SELECTION.

Subject Categories : Recording and Playback Devices
      Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE