TitleEstimation of an examinee's ability in the web-based computerized adaptive testing program IRT-CAT
Publication TypeJournal Article
Year of Publication2006
AuthorsLee, YH, Park, JH, Park, IY
JournalJ Educ Eval Health Prof
Publication Languageeng
ISBN Number1975-5937 (Electronic)
Accession Number19223996

We developed a program to estimate an examinee s ability in order to provide freely available access to a web-based computerized adaptive testing (CAT) program. We used PHP and Java Script as the program languages, PostgresSQL as the database management system on an Apache web server and Linux as the operating system. A system which allows for user input and searching within inputted items and creates tests was constructed. We performed an ability estimation on each test based on a Rasch model and 2- or 3-parametric logistic models. Our system provides an algorithm for a web-based CAT, replacing previous personal computer-based ones, and makes it possible to estimate an examinee's ability immediately at the end of test.