Adaptive student test evaluation incorporating probabilities.

The aim in all CAT programs is to estimate the student's ability, performance and expertise level precisely and not to refresh or even better to improve the student's knowledge in a particular topic or subject. The priority of an ITS (Intelligent Tutoring System) or of a distance learning system or a hypermedia such system is the presentation, facilitation and support of learning. Consequently, it is of outmost importance the presence of an intelligent tutoring test, which could help the student to realize his ability level and expertise of topics of particular interest, through continuous tutoring testing. Such a tutor must incorporate student's profile, an intelligent agent, a large item bank for minimum item exposure and to use metadata for an easy and quick access to the knowledge pool. An Intelligent Tutoring Adaptive Tester capable of providing to the user the kind of assistance in order to maintain and even better to improve his/her ability level has been designed implemented and tested with encouraging results.