Abstract
This study introduces LIVECAT, a web-based computerized adaptive testing platform. This platform provides many functions, including writing item content, managing an item bank, creating and administering a test, reporting test results, and providing information about a test and examinees. The LIVECAT provides examination administrators with an easy and flexible environment for composing and managing examinations. It is available at http://www.thecatkorea.com/. Several tools were used to program LIVECAT, as follows: operating system, Amazon Linux; web server, nginx 1.18; WAS, Apache Tomcat 8.5; database, Amazon RDMS—Maria DB; and languages, JAVA8, HTML5/CSS, Javascript, and jQuery. The LIVECAT platform can be used to implement several item response theory (IRT) models such as the Rasch and 1-, 2-, 3-parameter logistic models. The administrator can choose a specific model of test construction in LIVECAT. Multimedia data such as images, audio files, and movies can be uploaded to items in LIVECAT. Two scoring methods (maximum likelihood estimation and expected a posteriori) are available in LIVECAT and the maximum Fisher information item selection method is applied to every IRT model in LIVECAT. The LIVECAT platform showed equal or better performance compared with a conventional test platform. The LIVECAT platform enables users without psychometric expertise to easily implement and perform computerized adaptive testing at their institutions. The most recent LIVECAT version only provides a dichotomous item response model and the basic components of CAT. Shortly, LIVECAT will include advanced functions, such as polytomous item response models, weighted likelihood estimation method, and content balancing method.
Highlights
IntroductionBackground/rationale Computerized adaptive testing (CAT) has been used widely for licensing/certification examinations
Introduction to theLIVECAT web-based computerized adaptive testing platformDong Gi Seo1,2*, Jeongwook Choi2This study introduces LIVECAT, a web-based computerized adaptive testing platform
Since LIVECAT is a web-based platform, there is no restriction on place and time
Summary
Background/rationale Computerized adaptive testing (CAT) has been used widely for licensing/certification examinations. Many institutions in the United States administer CAT-based license tests for health professionals, including the National Council of State Boards of Nursing for the National Council Licensure Examination for Reg-. For this reason, a web-based CAT platform was developed for licensing/certification examinations, including educational/psychological tests
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