01330nas a2200169   4500008004100000020002700041245010300068210006900171250001500240300000600255490000600261520073400267100001301001700001401014700001401028856011801042       2006                        eng d  a1975-5937 (Electronic)00aEstimation of an examinee's ability in the web-based computerized adaptive testing program IRT-CAT0 aEstimation of an examinees ability in the webbased computerized   a2006/01/01  a40 v33 aWe 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.1 aLee, Y H1 aPark, J H1 aPark, I Y  uhttp://www.iacat.org/content/estimation-examinees-ability-web-based-computerized-adaptive-testing-program-irt-cat