Impact of Test Design, Item Quality, and Item Bank Size on The Psychometric Properties of Computer - Based Credentialing Examinations  

Oleh:

Dehui Xing ; Hambleton, Ronald K.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 64 no. 1 (2004), page 5-21.
Topik: DESIGN; multistage tests; computer - based tests; test designs; credentialing exams
Fulltext: 5.pdf (319.68KB)

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Perpustakaan Pusat (Semanggi) Nomor Panggil: EE30.10 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Computer - based testing by credentialing agencies has become common, however selecting a test design is difficult because several good ones are available - parallel forms, computer adaptive (CAT) and multistage (MST). In this study, three computer - based test designs under some common examination conditions were investigated. Item bank size and item quality had a practically significant impact on decision consistency and accuracy. Even in nearly ideal situations, the choice of test design was not a factor in the results. Two conclusions follow from the findings : a. more time and resources should be commited to expanding the size and quality of item banks, and b. designs that individualize an exam administration such as MST and CAT may not be helpful when the primary purpose of the examination is to make pass - fail decisions are present for using parallel forms with a target information function that can be centered on the passing score.

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