00526nas a2200133 4500008003900000245013200039210006900171300001200240490000700252100002300259700001900282700002500301856006600326 2006 d00aComparison of the Psychometric Properties of Several Computer-Based Test Designs for Credentialing Exams With Multiple Purposes0 aComparison of the Psychometric Properties of Several ComputerBas a203-2200 v191 aJodoin, Michael, G1 aZenisky, April1 aHambleton, Ronald, K uhttp://www.tandfonline.com/doi/abs/10.1207/s15324818ame1903_301470nas a2200133 4500008003900000245013600039210006900175300000900244490000700253520098400260100001601244700002501260856005101285 2004 d00aImpact of Test Design, Item Quality, and Item Bank Size on the Psychometric Properties of Computer-Based Credentialing Examinations0 aImpact of Test Design Item Quality and Item Bank Size on the Psy a5-210 v643 a
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 computerbased 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 committed 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 and conditions are present for using parallel forms with a target information function that can be centered on the passing score.
1 aXing, Dehui1 aHambleton, Ronald, K uhttp://epm.sagepub.com/content/64/1/5.abstract